research based differentiated instruction strategies

Differentiated Instruction

Differentiated instruction involves teaching in a way that meets the different needs and interests of students using varied course content, activities, and assessments.

Teaching differently to different students

Differentiated Instruction (DI) is fundamentally the attempt to teach differently to different students, rather than maintain a one-size-fits-all approach to instruction. Other frameworks, such as Universal Design for Learning , enjoin instructors to give students broad choice and agency to meet their diverse needs and interests. DI distinctively emphasizes instructional methods to promote learning for students entering a course with different readiness for, interest in, and ways of engaging with course learning based on their prior learning experiences ( Dosch and Zidon 2014). 

Successful implementation of DI requires ongoing training, assessment, and monitoring (van Geel et al. 2019) and has been shown to be effective in meeting students’ different needs, readiness levels, and interests (Turner et al. 2017). Below, you can find six categories of DI instructional practices that span course design and live teaching.

While some of the strategies are best used together, not all of them are meant to be used at once, as the flexibility inherent to these approaches means that some of them are diverging when used in combination (e.g., constructing homogenous student groups necessitates giving different types of activities and assessments; constructing heterogeneous student groups may pair well with peer tutoring) (Pozas et al. 2020). The learning environment the instructor creates with students has also been shown to be an important part of successful DI implementation (Shareefa et al. 2019). 

Differentiated Assessment

Differentiated assessment is an aspect of Differentiated Instruction that focuses on tailoring the ways in which students can demonstrate their progress to their varied strengths and ways of learning. Instead of testing recall of low-level information, instructors should focus on the use of knowledge and complex reasoning. Differentiation should inform not only the design of instructors’ assessments, but also how they interpret the results and use them to inform their DI practices. 

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Steps to consider

There are generally considered to be six categories of useful differentiated instruction and assessment practices (Pozas & Schneider 2019):

• Making assignments that have tasks and materials that are qualitatively and/or quantitatively varied (according to “challenge level, complexity, outcome, process, product, and/or resources”) (IP Module 2: Integrating Peer-to-Peer Learning) It’s helpful to assess student readiness and interest by collecting data at the beginning of the course, as well as to conduct periodic check-ins throughout the course (Moallemi 2023 & Pham 2011)
• Making student working groups that are intentionally chosen (that are either homogeneous or heterogeneous based on “performance, readiness, interests, etc.”) (IP Module 2: Integrating Peer-to-Peer Learning) Examples of how to make different student groups provided by Stanford CTL  (Google Doc)
• Making tutoring systems within the working group where students teach each other (IP Module 2: Integrating Peer-to-Peer Learning) For examples of how to support peer instruction, and the benefits of doing so, see for example Tullis & Goldstone 2020 and Peer Instruction for Active Learning (LSA Technology Services, University of Michigan)
• Making non-verbal learning aids that are staggered to provide support to students in helping them get to the next step in the learning process (only the minimal amount of information that is needed to help them get there is provided, and this step is repeated each time it’s needed) (IP Module 4: Making Success Accessible) Non-verbal cue cards support students’ self-regulation, as they can monitor and control their progress as they work (Pozas & Schneider 2019)
• Making instructional practices that ensure all students meet at least the minimum standards and that more advanced students meet higher standards , which involves monitoring students’ learning process carefully (IP Module 4: Making Success Accessible; IP Module 5: Giving Inclusive Assessments) This type of approach to student assessment can be related to specifications grading, where students determine the grade they want and complete the modules that correspond to that grade, offering additional motivation to and reduced stress for students and additional flexibility and time-saving practices to instructors (Hall 2018)
• Making options that support student autonomy in being responsible for their learning process and choosing material to work on (e.g., students can choose tasks, project-based learning, portfolios, and/or station work, etc.) (IP Module 4: Making Success Accessible) This option, as well as the others, fits within a general Universal Design Learning framework , which is designed to improve learning for everyone using scientific insights about human learning

Hall, M (2018). “ What is Specifications Grading and Why Should You Consider Using It? ” The Innovator Instructor blog, John Hopkins University Center for Teaching Excellence and Innovation.

Moallemi, R. (2023). “ The Relationship between Differentiated Instruction and Learner Levels of Engagement at University .” Journal of Research in Integrated Teaching and Learning (ahead of print).

Pham, H. (2011). “ Differentiated Instruction and the Need to Integrate Teaching and Practice .” Journal of College Teaching and Learning , 9(1), 13-20.

Pozas, M. & Schneider, C. (2019). " Shedding light into the convoluted terrain of differentiated instruction (DI): Proposal of a taxonomy of differentiated instruction in the heterogeneous classroom ." Open Education Studies , 1, 73–90.

Pozas, M., Letzel, V. and Schneider, C. (2020). " Teachers and differentiated instruction: exploring differentiation practices to address student diversity ." Journal of Research in Special Educational Needs , 20: 217-230.

Shareefa, M. et al. (2019). “ Differentiated Instruction: Definition and Challenging Factors Perceived by Teachers .” Proceedings of the 3rd International Conference on Special Education (ICSE 2019). 

Tullis, J.G. & Goldstone, R.L. (2020). “ Why does peer instruction benefit student learning? ”, Cognitive Research 5 .

Turner, W.D., Solis, O.J., and Kincade, D.H. (2017). “ Differentiating Instruction for Large Classes in Higher Education ”, International Journal of Teaching and Learning in Higher Education , 29(3), 490-500.

van Geel, M., Keuning, T., Frèrejean, J., Dolmans, D., van Merriënboer, J., & Visscher A.J. (2019). “Capturing the complexity of differentiated instruction”, School Effectiveness and School Improvement , 30:1, 51-67, DOI: 10.1080/09243453.2018.1539013

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18 Teacher-Tested Strategies for Differentiated Instruction

Most educators agree that differentiated instruction can dramatically help students to succeed, but good differentiation needs careful planning to make sure students of all abilities are engaged and it can be a challenge when teachers are already so pressed for time.

That's why we searched the Edutopia community for tips and strategies that can help with differentiating instruction. You can find 18 of them included in this presentation:

This piece was originally submitted to our community forums by a reader. Due to audience interest, we’ve preserved it. The opinions expressed here are the writer’s own.

SYSTEMATIC REVIEW article

Differentiated instruction in secondary education: a systematic review of research evidence.

• Department of Teacher Education, University of Groningen, Groningen, Netherlands

Differentiated instruction is a pedagogical-didactical approach that provides teachers with a starting point for meeting students' diverse learning needs. Although differentiated instruction has gained a lot of attention in practice and research, not much is known about the status of the empirical evidence and its benefits for enhancing student achievement in secondary education. The current review sets out to provide an overview of the theoretical conceptualizations of differentiated instruction as well as prior findings on its effectiveness. Then, by means of a systematic review of the literature from 2006 to 2016, empirical evidence on the effects of within-class differentiated instruction for secondary school students' academic achievement is evaluated and summarized. After a rigorous search and selection process, only 14 papers about 12 unique empirical studies on the topic were selected for review. A narrative description of the selected papers shows that differentiated instruction has been operationalized in many different ways. The selection includes studies on generic teacher trainings for differentiated instruction, ability grouping and tiering, individualization, mastery learning, heterogeneous grouping, and remediation in flipped classroom lessons. The majority of the studies show small to moderate positive effects of differentiated instruction on student achievement. Summarized effect sizes across studies range from d = +0.741 to +0.509 (omitting an outlier). These empirical findings give some indication of the possible benefits of differentiated instruction. However, they also point out that there are still severe knowledge gaps. More research is needed before drawing convincing conclusions regarding the effectiveness and value of different approaches to differentiated instruction for secondary school classes.

Introduction

Differentiation is a hot-topic in education nowadays. Policy-makers and researchers urge teachers to embrace diversity and to adapt their instruction to the diverse learning needs of students in their classrooms ( Schleicher, 2016 ; Unesco, 2017 ). Differentiation is a philosophy of teaching rooted in deep respect for students, acknowledgment of their differences, and the drive to help all students thrive. Such ideas imply that teachers proactively modify curricula, teaching methods, resources, learning activities, or requirements for student products to better meet students' learning needs ( Tomlinson et al., 2003 ). When teachers deliberately plan such adaptations to facilitate students' learning and execute these adaptations during their lessons we call it differentiated instruction. A number of developments in education have boosted the need for differentiated instruction. First, contemporary classes are becoming relatively heterogeneous because of policies focused on detracking, the inclusion of students from culturally and linguistically diverse backgrounds, and inclusive education in which special education students (SEN) attend classes along with non-SEN students ( Rock et al., 2008 ; Tomlinson, 2015 ). Since early stratification of students may have unintended effects on the educational opportunities of students with varying background characteristics, addressing students' learning needs by teaching adaptively within heterogeneous classrooms has been proposed as the best choice for a fair educational system ( Oakes, 2008 ; Schütz et al., 2008 ; Schofield, 2010 ; OECD, 2012 , 2018 ). In addition, even within relatively homogeneous classrooms, there are considerable differences between students that need attention ( Wilkinson and Penney, 2014 ). Second, the idea that learners have different learning needs and that a one-size-fits-all approach does not suffice, is gaining momentum ( Subban, 2006 ). Policy makers stress that all students should be supported to develop their knowledge and skills at their own level ( Rock et al., 2008 ; Schleicher, 2016 ) and there is the wish to improve equity or equality among students ( Unesco, 2017 ; Kyriakides et al., 2018 ). When the aim is to decrease the gap between low and high achieving students, teachers could invest most in supporting low achieving students. This is called convergent differentiation ( Bosker, 2005 ). Alternatively, teachers may apply divergent differentiation in which they strive for equality by dividing their efforts equally across all students, allowing for variation between students in the learning goals they reach, time they use, and outcomes they produce ( Bosker, 2005 ).

Although the concept of differentiated instruction is quite well-known, teachers find it difficult to grasp how differentiated instruction should be implemented in their classrooms ( Van Casteren et al., 2017 ). A recent study found that teachers across different countries infrequently adapt their instruction to student characteristics ( Schleicher, 2016 ). Struggling students may work on too difficult tasks or, conversely, high ability students may practice skills they have already mastered ( Tomlinson et al., 2003 ). Clearly, more information about effective practices is needed. A recent review and meta-analysis of differentiated instruction practices in primary education shows that differentiated instruction has some potential for improving student outcomes, when implemented well ( Deunk et al., 2018 ). However, these results may not generalize directly to secondary education, since the situation in which teachers teach multiple classes in secondary education is rather different in nature compared to primary education ( Van Casteren et al., 2017 ). For secondary education, evidence for the benefits of differentiated instruction is scarce ( Coubergs et al., 2013 ). The bulk of studies in secondary education focus on differentiation of students between classes by means of streaming or tracking ( Slavin, 1990a ; Schofield, 2010 ). Alternatively, the current study seeks to scrutinize which empirical evidence there is on the effectiveness of within-class differentiated instruction in secondary education, how studies operationalize the approach, and in which contexts the studies were performed.

Theory and Operationalizations

Operationalizing differentiated instruction in the classroom.

Theories of differentiation are bound by several guiding principles. They include a focus on essential ideas and skills in each content area, responsiveness to individual differences, integration of assessment and instruction, and ongoing adjustment of content, process, and products to meet students' learning needs ( Rock et al., 2008 ). Differentiation typically includes pro-active and deliberate adaptations of the content, process, product, learning environment or learning time, based on the assessment of students' readiness or another relevant student characteristic such as learning preference or interest ( Roy et al., 2013 ; Tomlinson, 2014 ). In Table 1 , we have schematized the theoretical construct of differentiated instruction in the lesson within the broader definition of within-class differentiation.

Table 1 . Theoretical model of within-class differentiation.

Differentiated instruction in the classroom entails two aspects. First is the pedagogy and didactics of differentiated instruction : which teaching practices and techniques do teachers use and what do they differentiate ( McQuarrie et al., 2008 ; Valiande and Koutselini, 2009 )? Teachers may offer students' adapted content , offer various options in the learning process , use different assessment products , or adapt the learning environment to students' learning needs ( Tomlinson, 2014 ). Teachers may also offer certain students more learning time or conversely, encourage high achievers to speed up their learning process ( Coubergs et al., 2013 ). Regarding the process , they may use pre-teaching or extended instruction to cater to the needs of students ( Smets and Struyven, 2018 ), or they could adapt instructions throughout the lesson. Second, the organizational aspect of differentiated instruction entails the structure in which it is embedded. There are different approaches a teacher may choose (see Table 1 ). In macro-adaptive approaches, teachers use some form of homogeneous clustering to organize their differentiated instruction ( Corno, 2008 ), including fixed or flexible grouping of students based on a common characteristic such as readiness or interest. Alternatively, teachers could use heterogeneous grouping to organize their differentiated instruction. Differentiation of the learning process may occur because students divide tasks within the group based on their learning preferences or abilities. Alternatively, a teacher may suggest a division of tasks or support based on assessment of learning needs ( Coubergs et al., 2013 ). When adaptations are taken to the level at which individual students work at their own rate on their level, this is called individualization ( Education Endowment Foundation, n.d. ). The learning goals are the same, but learning trajectories are tailored to individuals' needs. Some authors include individualized approaches into the theoretical construct of differentiated instruction ( Smit et al., 2011 ; Coubergs et al., 2013 ; Tomlinson, 2014 ), whereas others separate it from differentiated instruction ( Bray and McClaskey, 2013 ; Roy et al., 2013 ).

Lastly, there are teaching models or strategies in which differentiated instruction has a central place. One well-known example is group-based mastery learning . In this approach, subject matter is divided into small blocks or units. For each unit, the teacher gives uniform instructions to the whole group of students. Then, a formative assessment informs the teacher which students reach the desired level of mastery of the unit (usually set at 80–90% correct). Students below this criterion receive corrective instruction in small groups, or alternatively, forms of tutoring, peer tutoring or independent practice are also possible to differentiate the learning process ( Slavin, 1987 ). Differentiated instruction may also be embedded in other instructional approaches like peer tutoring, problem-based learning, flipped classroom models etc. ( Mastropieri et al., 2006 ; Coubergs et al., 2013 ; Altemueller and Lindquist, 2017 ).

Immediate, unplanned adaptations to student needs, so-called “micro-adaptations” ( Corno, 2008 ), are not included in the theoretical model in Table 1 , since differentiated instruction is—by nature—planned and deliberate ( Coubergs et al., 2013 ; Tomlinson, 2014 ; Keuning et al., 2017 ). Furthermore, we did not include the concept of “personalization” in our model since in personalized approaches students follow their own learning trajectories, pursue their own learning goals, and co-construct the learning trajectory, which makes it notably different from typical operationalizations of differentiated instruction ( Bray and McClaskey, 2013 ; Cavanagh, 2014 ).

Differentiation as a Sum of Its Parts

As noted above, differentiated instruction during the lesson is in fact only one piece of the mosaic ( Tomlinson, 1999 ). There are a lot of other steps that are crucial for successful implementation of differentiated instruction ( Keuning et al., 2017 ; Van Geel et al., 2019 ). Table 1 shows other behaviors that are related to what teachers do in the classroom. First, continuous monitoring and (formative) assessment and differentiated instruction are inseparable ( Hall, 1992 ; Valiande and Koutselini, 2009 ; Roy et al., 2013 ; Tomlinson, 2014 ; Denessen and Douglas, 2015 ; Prast et al., 2015 ). Some teachers may be inclined to use rather one-dimensional, fixed categorizations of students based on their learning needs at some point in time ( Smets and Struyven, 2018 ). Nevertheless, high quality differentiated instruction is based on the frequent assessment of learning needs and flexible adaptations to meet those needs. Prior to the lesson including differentiated instruction, teachers should have clear goals for their students, use some form of pre-assessment , and plan their adaptive instruction ( Prast et al., 2015 ; Keuning et al., 2017 ; Van Geel et al., 2019 ). Then, teachers proceed to the actual differentiated instruction during the lesson . After the lesson, teachers should evaluate students' progress toward their goals.

Besides these steps, more general high-quality teaching behaviors are preconditions to create a good context for differentiated instruction ( Wang et al., 1990 ; Tomlinson, 2014 ). For instance, creating a safe and stimulating learning environment in which students feel welcomed and respected is essential ( Tomlinson, 2014 ). In addition, good classroom management may help teachers to implement differentiated instruction in an orderly manner ( Maulana et al., 2015 ; Prast et al., 2015 ). In empirical studies, differentiated instruction has been found to be a separate domain of teaching, while at the same time being strongly interrelated with other high quality teaching behaviors ( Van de Grift et al., 2014 ; Maulana et al., 2015 ; Van der Lans et al., 2017 , 2018 ). In turn, high quality teaching behaviors like questioning, explaining the lesson content, or giving examples can be applied in a differentiated way, stressing that high quality teaching is both a contextual factor as a direct source of input for teachers' differentiated instruction.

Prior Review Studies on Differentiated Instruction

Although studies on within-class differentiated instruction in secondary education are scarce, a number of reviews and meta-analyses have shed some light on the effects on student achievement. Subban (2006) discusses a number of studies showing that adapting content or processes can make learning more engaging for students than one-size-fits-all teaching, and some studies showed positive effects of differentiated instruction on student achievement. The narrative review by Tomlinson et al. (2003) revealed studies showing that students achieve better results in mixed-ability classrooms in which the teacher differentiates instruction than in homogeneous classes were a more single-size approach is used. In a recent narrative research synthesis on adaptive teaching, one study on differentiated instruction was included. The authors found positive results of different types of adaptive teaching on students' academic and non-academic outcomes in primary education ( Parsons et al., 2018 ). In a large-scale meta-analysis by Scheerens (2016) , adaptive teaching was operationalized with some relevant indicators such as using variable teaching methods, orientation toward individual learning processes, and considering students' prerequisites. In this meta-analysis, a very small effect of adaptive teaching on student achievement was found.

A number of reviews report on specific operationalizations of within-class differentiated instruction. One of the most frequently reviewed forms is ability grouping . In within-class ability grouping, teachers cluster students into different homogeneous groups based on their abilities or readiness. In her narrative review, Tieso (2003) summarizes that ability grouping has a potential influence on student achievement when grouping is flexible, and teachers adapt their instruction to the needs of different groups. Steenbergen-Hu et al. (2016) performed a meta-synthesis including five other meta-analyses of the effects of ability grouping in K-12 education. In their study, within-class grouping was found to have at least a small positive impact on students' academic achievement (Hedges g = + 0.25). In the study of Kulik (1992) , who also combined results from different meta-analyses, a comparable effect size of Glass's Δ = + 0.25 in favor of within-class ability grouping was found. In the meta-analysis of Lou et al. (1996) on grouping in secondary education, within-class grouping was found to have a small positive effect (Cohen's d = + 0.12) on student outcomes. Substantive achievement gains were found in studies in which teachers adapted their teaching to needs of the different ability groups (Cohen's d = + 0.25), but not in studies in which teachers provided the same instruction for the different groups (Cohen's d = + 0.02). In his large meta-analysis of effects of instructional approaches on student outcomes, Hattie (2009) reported a small positive effect of within-class ability grouping on students' academic achievement (Cohen's d = +0.16). Conversely, Slavin (1990a) did not find significant effects of (between and within-class) ability grouping on achievement in secondary education. In a meta-synthesis of multiple meta-analyses on ability grouping—including between-class ability grouping—no overall positive effects of the approach were found ( Sipe and Curlette, 1996 ). Some studies have found that ability grouping effects may differ for subgroups of students. For instance, Lou et al. (1996) found that low-ability students learned significantly more in heterogeneous (mixed-ability) groups, average-ability students benefitted most in homogeneous ability groups, and for high-ability students group composition made no significant difference. In primary education, Deunk et al. (2018) found a negative effect of within-class homogeneous grouping for low achieving pupils. Conversely, Steenbergen-Hu et al. (2016) concluded that high-, average-, and low-ability students all benefited equally from ability grouping. Thus, the findings on differential effects of ability grouping remain inconclusive.

Another possible approach to differentiated instruction is tiering. Tiering refers to using the same curriculum material for all learners, but adjusting the depth of content, the learning activity process, and/or the type of product developed by the student to students' readiness, interest or learning style ( Pierce and Adams, 2005 ; Richards and Omdal, 2007 ). Teachers design a number of variations or tiers to a learning task, process or product, to which students are assigned based on assessed abilities. To our knowledge, there are no specific reviews of the literature or meta-analyses summarizing the effects of tiering on student achievement, but the approach is often combined with homogeneous (ability) grouping.

Alternatively, turning to heterogeneous grouping as an organizational structure for differentiated instruction, there is evidence that students of varying backgrounds working together may learn from each other's knowledge, from observing each other, and from commenting on each other's errors ( Nokes-Malach et al., 2015 ). However, based on their narrative review about differentiated instruction in secondary schools, Coubergs et al. (2013) concluded that there is little known about the effectiveness of differentiated instruction in heterogeneous settings They found that guiding heterogeneous groups is challenging for teachers, and that it is difficult to address the learning needs of all students in these mixed groups.

Reviews of effectiveness of individualized instruction indicate small effects on student outcomes. Hattie (2009) reports a small effect of individualization on student achievement (Cohen's d = +0.23). In addition, in another review a wide range of effects across meta-analyses was found of individualization on academic achievement of students (from −0.07 to +0.40; Education Endowment Foundation, n.d. ). Currently, mostly ICT-applications are used to individualize instruction. Review studies show that such adaptive ICT applications may considerably improve student achievement ( Ma et al., 2014 ; Van der Kleij et al., 2015 ; Kulik and Fletcher, 2016 ; Shute and Rahimi, 2017 ).

Guskey and Pigott (1988) performed a meta-analysis on the effects of group-based mastery learning on students' academic outcomes from grade one up to college. They reported positive effects on students' academic achievement as a result of the application of group-based mastery learning for, among others, high school students (Hedges g = +0.48). Later on, Kulik et al. (1990) and Hattie (2009) also reported relatively large positive effects of group-based mastery learning on student achievement (ES = +0.59 and Cohen's d = +0.58, respectively). Low ability students were generally found to profit most from the convergent approach ( Guskey and Pigott, 1988 ; Kulik et al., 1990 ). Mastery learning was among the most effective educational approaches in a meta-synthesis of multiple meta-analyses ( Sipe and Curlette, 1996 ). However, mastery learning may be particularly valuable to train specific skills but may yield fewer positive results for more general skills as measured by standardized tests ( Slavin, 1987 , 1990b ). Mastery learning has also been incorporated into broader interventions in secondary education such as the IMPROVE method ( Mevarech and Kramarski, 1997 ).

Overall, from previous review studies we can draw the conclusion that there is some evidence that differentiated instruction has potential power to affect students' academic achievement positively with small to medium effects. However, the evidence is limited and heterogeneous in nature. The effectiveness of some approaches to differentiated instruction, such as ability grouping, has been reviewed extensively, while other approaches have received less attention. Furthermore, most studies were executed some time ago and were executed in the context of primary education, while only few studies focus specifically on secondary education.

Contextual and Personal Factors Influencing Differentiated Instruction

When analyzing the effectiveness of differentiated instruction, it is important to acknowledge that classroom processes do not occur in a vacuum. Both internal and external sources determine whether teachers will succeed in developing complex teaching skills ( Clarke and Hollingsworth, 2002 ). In the case of differentiated instruction, teacher-level variables like education, professional development and personal characteristics like knowledge, attitudes, beliefs, values and self-efficacy may influence their behavior ( Tomlinson, 1995 ; Tomlinson et al., 2003 ; Kiley, 2011 ; De Jager, 2013 ; Parsons et al., 2013 ; Dixon et al., 2014 ; De Neve and Devos, 2016 ; Suprayogi et al., 2017 ; Stollman, 2018 ). Teachers need thorough content knowledge and a broad range of pedagogical and didactic skills to plan and execute differentiated instruction ( Van Casteren et al., 2017 ). At the classroom level, diversity of the student population ( De Neve and Devos, 2016 ) and class-size ( Blatchford et al., 2011 ; Suprayogi et al., 2017 ; Stollman, 2018 ) influence interactions between teachers and their students. Moreover, school characteristics matter. For instance, a school principal's support can influence implementation of differentiated instruction ( Hertberg-Davis and Brighton, 2006 ). Additionally, structural organizational conditions, such as time and resources available for professional development, and cultural organizational conditions such as the learning environment, support from the school board, and a professional culture of collaboration may influence teaching ( Imants and Van Veen, 2010 ; Stollman, 2018 ). Teachers have reported that preparation time is a crucial factor determining the implementation of differentiated instruction ( De Jager, 2013 ; Van Casteren et al., 2017 ). Moreover, collaboration is key; a high pedagogical team culture influences both the learning climate and the implementation of differentiated instruction ( Smit and Humpert, 2012 ; Stollman, 2018 ). Lastly, country level requirements and (assessment) policies that stress differentiated instruction may influence implementation ( Mills et al., 2014 ).

Research Questions

Researchers and teachers lack a systematic overview of the current empirical evidence for different approaches to within-class differentiated instruction in secondary education. Therefore, we aim to (1) give an overview of the empirical literature on effects of differentiated instruction on student achievement in secondary education, and (2) consider the degree to which contextual and personal factors inhibit or enhance the effects of within-class differentiated instruction.

Our study is guided by the following research questions:

RQ1. What is the research base regarding the effects of within-class differentiated instruction on students' academic achievement in secondary education?

RQ2. How are the selected approaches to differentiated instruction operationalized?

RQ3. What are the overall effects of differentiated instruction on students' academic achievement?

RQ4. Which contextual and personal factors inhibit or enhance the effects of differentiated instruction on student achievement?

Based on previous research, we hypothesize to find literature on multiple possible approaches to differentiated instruction in the classroom. Probably, there will be more evidence for some operationalizations (like ability grouping) than for others. Overall, we hypothesize that differentiated instruction will have a small to medium positive effect on students' academic achievement. Several contextual and personal factors may affect the implementation. In this review, we will include information about relevant contextual and personal variables—when provided—into the interpretation of the literature.

Study Design

In order to provide a systematic overview of the literature on within-class differentiated instruction, a best evidence synthesis ( Slavin, 1986 , 1995 ; Best Evidence Encyclopedia, n.d.) was applied. This was done by a-priori defining consistent, transparent standards to identify relevant studies about within-class differentiated instruction. Each selected study is discussed in some detail and results are evaluated. In case enough papers are found that are comparable, findings can be pooled across studies. The best-evidence strategy is particularly suitable for topics—such as differentiated instruction—for which the body of literature is expected to be rather small and diverse. In such cases, it is important to learn as much as possible from each study, not just to average quantitative outcomes and study characteristics (compare Slavin and Cheung, 2005 ). In a recent review study on differentiated instruction in primary schools, the best evidence synthesis approach was used as well ( Deunk et al., 2018 ). In this study, the authors mentioned the benefits of selecting studies using strict pre-defined criteria (to avoid a garbage in-garbage-out effect). Moreover, combining a meta-analysis with relatively extended descriptions of the included studies in order to make the information more fine-grained was found to improve the interpretability of the results.

Working Definition of Differentiated Instruction

To select relevant studies for our review, we used the following working definition of differentiated instruction: Differentiated teaching in the classroom consisting of planned adaptations in process, learning time, content, product or learning environment for groups of students or individual students. Adaptations can be based on achievement/readiness or another relevant student characteristic (such as prior knowledge, learning preferences, and interest) with the goal of meeting students' learning needs.

Adaptations that are merely organizational, such as placing students in homogeneous groups without adapting the teaching to relevant inter-learner differences, were excluded. Interventions using approaches like peer tutoring, project-based learning and other types of collaborative leaning were eligible, but only when planned differentiated instruction was applied based on relevant student characteristics (e.g., by assigning specific roles based on students' abilities). Beyond the scope of this review were studies on differentiated instruction outside the classroom such as between-class differentiation (streaming or tracking), tutoring outside the classroom, or stratification of students between schools.

Search Strategy

The studies for our best evidence synthesis were identified in a number of steps. First, we performed a systematic search in the online databases ERIC, PsycINFO, and Web of Science (SSCI). Following the guidelines of Petticrew and Roberts (2006) , a set of keywords referring to the intervention (differentiation combined with keywords referring to instruction), the population (secondary education) and the outcomes of interest (academic outcomes) were used. We limited the findings to studies published between 2006 and 2016 that were published in academic journals. Although this first search yielded relevant studies, it failed to identify a number of important studies on differentiated instruction practices known from the literature. This was because search terms like “differentiation” and “adaptive” were not used in all relevant studies. Some authors used more specific terms such as ability grouping, tiered lessons, flexible grouping and mastery learning. Therefore, an additional search was performed in ERIC and PsycINFO with more specific keywords associated with differentiated instruction. We added keywords referring to various homogeneous or heterogeneous clustering approaches, to mastery learning approaches, or to convergent or divergent approaches (see Appendix A for the full search string) 1 .

Additional to this protocol-driven approach, we used more informal approaches to trace relevant studies. We cross-referenced the selected papers and recent review studies on related topics, used personal knowledge about relevant papers, and consulted experts in the field. We only used newly identified papers in case they were from journals indexed in the online databases Ebscohost, Web of Science, or Scopus to avoid selecting predatory journal outputs.

Selection of Papers

The identified papers were screened in pre-designed Excel sheets in two stages. First, two independent coders applied a set of inclusion criteria (criteria 1–8) to all papers based on title, abstract, and keywords. The papers that met the following conditions were reviewed in full text: (1) one or both of the coders judged the paper to be included for full text review based on the inclusion criteria using the title, abstract, and keywords, or (2) the study fulfilled some of the inclusion criteria but not all criteria could be discerned clearly from the title, abstract or keywords. Second, in a full text review, two coders applied the inclusion criteria again after reading the full paper. If a study met the basic criteria 1–8, additional methodological criteria (9–13) were checked in order to make the final selection. To assure the quality of the coding process, full-text coding of both coders was compared. Differences between coders about whether the study met certain inclusion criteria were resolved by discussion and consensus. The dual coding process by two reviewers was used since this substantially increases the chance that eligible studies are rightfully included ( Edwards et al., 2002 ). Only studies that met all 13 inclusion criteria were included in the review.

Inclusion Criteria

The following inclusion criteria were used to select the relevant papers. These criteria were based on a prior review study on differentiated instruction in primary education ( Deunk et al., 2018 ) and the best evidence studies by Slavin and colleagues ( Slavin and Cheung, 2005 ; Slavin et al., 2008 , 2009 ; Slavin, 2013 ; Cheung et al., 2017 ).

1. Within-class differentiated instruction: The study is about the effect of within-class differentiated instruction, as defined in our study (see section Working Definition of Differentiated Instruction).

2. Practicality : The differentiated instruction approach is practical for teachers ( Janssen et al., 2015 ). Teachers must be able to apply this intervention themselves in a regular classroom. In addition, the intervention is time- and cost-effective, meaning that it should not take excessive training or coaching nor use of external teachers in the classroom to implement the approach. Interventions in which ICT applications are used to support the teachers' instruction and can be controlled by the teacher (e.g., in blended learning environments in which teachers make use of on-line tools or PowerPoint) could be included. However, studies on the effects of fully computerized adaptive programs (e.g., with adaptive feedback or intelligent tutors) or differentiation approaches for which an external teacher (or tutor) is needed (such as pullout interventions) were excluded.

3. Study type: Students in a differentiated instruction intervention condition are compared to those in a control condition in which students are taught using standard practice (“business as usual”), or to an alternative intervention (compare Slavin et al., 2008 , 2009 ; Slavin, 2013 ; Cheung et al., 2017 ; Deunk et al., 2018 ). The design could be truly randomized or quasi-experimental or matched (the control condition could be a group of other students in a between-group design, or students could be their own control group in a within-groups design) 2 . Additionally, large-scale survey designs in which within-class differentiated instruction is retrospectively linked to academic outcomes were eligible for inclusion (compare Deunk et al., 2018 ). Surveys have increasingly included been used in reviews of effectiveness, although one must keep in mind that no finding from a survey is definitive ( Petticrew and Roberts, 2006 ).

4. Quantitative empirical study : The study contains quantitative empirical data of at least 15 students per experimental group (compare Slavin et al., 2008 , 2009 ; Slavin, 2013 ; Cheung et al., 2017 ; Deunk et al., 2018 ). Other studies such as qualitative studies, case studies with fewer than 15 students, or theoretical or descriptive studies were excluded.

5. Secondary education: The study was executed in secondary education. For example, in middle schools, high schools, vocational schools, sixth-form schools or comparable levels of education for students from an age of about 11 or 12 years onwards. In some contexts, secondary schools could include grades as low as five, but they usually start with sixth or seventh grades (compare Slavin, 1990a ).

6. Mainstream education : The study was performed in a mainstream school setting (in a regular school, during school hours). Studies that were performed in non-school settings (e.g., in a laboratory or the workplace) or in an alternate school setting (e.g., an on-line course, a summer school, a special needs school) were excluded.

7. Academic achievement : Academic achievement of students is reported as a quantitative dependent variable, such as mathematics skills, language comprehension, or knowledge of history.

8. Language : The paper is written in English or Dutch (all authors master these languages), but the actual studies could be performed in any country.

Additional inclusion criteria used in the full-text review:

9. Differentiated instruction purpose: The study is about differentiated instruction with the aim of addressing cognitive differences (e.g., readiness, achievement level, intelligence) or differences in motivation / interest or learning profiles ( Tomlinson et al., 2003 ). Studies in which adaptions were made based on other factors such as culture (“culturally responsive teaching”) or physical or mental disabilities are beyond the scope of this review.

10. Implementation : The intervention is (at least partly) implemented. If this was not specifically reported, implementation was assumed.

11. Outcome measurement: The dependent variables/outcome measures include quantitative measures of achievement. Experimenter-made measures were accepted if they were comprehensive and fair to the both groups; no treatment-inherent measures were included ( Slavin and Madden, 2011 ).

12. Effect sizes : The paper provides enough information to calculate or extract effect sizes about the effectiveness of the differentiated instruction approach.

13. Comparability : Pretest information is provided (unless random assignments of at least 30 units was used and there were no indications of initial inequality). Studies with pretest differences of more than 50% of a standard deviation were excluded because—even with analyses of covariance—large pretest differences cannot be adequately adjusted for ( Slavin et al., 2009 ; Slavin, 2013 ; Cheung et al., 2017 ; compare Deunk et al., 2018 ).

Data Extraction

After the final selection of papers based on the criteria above, relevant information was extracted from the papers and coded by two independent reviewers in a pre-designed Excel sheet (see Appendix B ). Discrepancies between the extractions of both reviewers were discussed until consensus was reached. Missing information regarding the methodology or results was requested from the authors by e-mail (although only few responses were received). The content coding was used (additional to the full texts) to inform the literature synthesis and to extract data for the calculation of effect sizes.

Data Analysis

We transformed all outcomes on student achievement from the selected papers to Cohen's d , which is the standardized mean difference between groups ( Petticrew and Roberts, 2006 ; Borenstein et al., 2009 ). To do so, the program Comprehensive Meta-Analysis (CMA) version 2 was used ( Borenstein et al., 2009 ). Effect sizes were calculated using a random effects model since we have no reason to assume that the studies are “identical” in the sense that the true effect size is exactly the same in all studies ( Borenstein et al., 2010 ). Methods of calculating effects using different types of data are described in Borenstein et al. (2009) and Lyons (2003) . When outcomes were reported in multiple formats in the paper, we chose the means and standard deviations to come to transparent and comparable outcomes. The effects were standardized using post-score standard deviations for measures where this was needed. For some outcome formats, CMA requires the user to insert a pre-post correlation. Since none of the selected papers provided this number, we assumed a correlation of 0.80 in the analyses since it is reasonable to assume such a pre- post correlation in studies in secondary education ( Swanson and Lussier, 2001 ; Cole et al., 2011 ). This correlation does not affect the Cohen's d statistic but has impact on its variance component. For the papers in which multiple outcome measures were reported, we used the means of the different measures. In case only subgroup means (of subgroups within classes of schools) were reported, we combined the outcomes of the subgroups with study as the unit of analysis to calculate a combined effect ( Borenstein et al., 2009 ). For one study in which the intervention was executed in separate schools differing in implementation and findings, we have included the schools in the analyses separately (using schools in which the intervention took place as the unit of analysis).

Search Results

Our search led to 1,365 hits from the online databases ERIC, PsycINFO and Web of Science and 34 cross-referenced papers. Excluding duplicates, 1,029 papers were reviewed. See Appendix C for a flow-chart of the selection process. In total, 14 papers met the eligibility criteria for inclusion. Papers reporting on the same project and outcomes were taken together as one study. The papers by Altintas and Özdemir (2015a , b) report on the same project. The same applies to two other papers as well ( Vogt and Rogalla, 2009 ; Bruhwiler and Blatchford, 2011 ). Thus, in the end, 12 unique studies were included in our review and meta-analysis leading to 15 effects in total (since for one study the four different schools in which the intervention was executed were taken as the unit of analysis).

Study Characteristics

In Table 2 , the characteristics and individual effects of the studies included in our review are summarized. The selection of studies includes eight quasi-experimental studies in which classes were randomly allocated to a control or experimental condition ( Mastropieri et al., 2006 ; Richards and Omdal, 2007 ; Huber et al., 2009 ; Vogt and Rogalla, 2009 ; Little et al., 2014 ; Altintas and Özdemir, 2015a , b ; Bal, 2016 ; Bhagat et al., 2016 ), three studies in which schools were randomly allocated to conditions ( Wambugu and Changeiywo, 2008 ; Mitee and Obaitan, 2015 ; Bikić et al., 2016 ), and one survey-study ( Smit and Humpert, 2012 ). These studies covered a wide range of academic subjects, including science, mathematics and reading. In terms of the number of participating students, six studies were small-scale studies ( N < 250) and six were large-scale studies ( N > 250). However, note that all experiments had nested designs. Only the studies of Little et al. (2014) and Vogt and Rogalla (2009) have at least 15 cases in each experimental condition at the level of randomization. Four studies were performed in the United States of America, five in Europe, one in Taiwan, and two in Africa. All studies were performed in secondary education, but the Vogt and Rogalla study represents a combined sample of primary- and secondary education students.

Table 2 . Summary of contents of the selected papers and the effects of the individual studies on student achievement.

Literature Synthesis

To further reflect on the findings from the selected studies in respect to our research questions, we will give a more detailed description of the study designs, implementations and findings here.

Studies on Generic Approaches to Differentiated Instruction

Although adaptive teaching does not necessarily include differentiated instruction, we found two quasi-experimental studies on adaptive teaching that (to some extent) matched our definition of differentiated instruction. In the large-scale study by Vogt and Rogalla (2009) , teachers were trained in adaptive teaching competency to improve their teaching and, in turn, to maximize students' learning. In the project “Adaptive Teaching Competency,” that was also included in the paper of Bruhwiler and Blatchford (2011) , adaptive teaching was characterized as including: sufficient subject knowledge, taking the diverse pre-conditions and learning processes of students into account, using various effective teaching methods for the whole group, differentiating for students' varying learning needs, supporting students in the regulation of learning processes, and using effective classroom management. In the project, teachers learned to focus on both adaptive planning prior to the lesson, as well as making adaptations during the lesson. Teachers of 27 primary school classes and 23 secondary school classes with 623 students were recruited to learn more about adaptive teaching. They participated in a 2-day workshop, received several coaching sessions in the classroom and used the adaptive teaching framework in their classes for eight science lessons. After the intervention, it was measured—among others—whether teachers differentiated to meet students' diverse skills and interests. After the intervention, teachers' competency in planning adaptive lessons significantly increased but their “Adaptive Implementation” did not change much. Unfortunately, in the coaching sessions, teachers often did not discuss about issues of adapting to the diversity of students' skills and their pre-existing knowledge. The results of students in the experimental classes were compared to those of 299 control students. The authors reported that the secondary students in the experimental group outperformed their counterparts in control classrooms on a science achievement test after the intervention. However, since we only had access to the means of the combined sample in primary and secondary education we used the combined sample results. Our calculation based on these means shows a small non-significant intervention effect of d = +0.133 (see Table 2 ). The authors argue that more coaching may be needed to foster the implementation of adaptive teaching in the classroom, although it would decrease the cost-effectiveness of the approach.

In the study by Huber et al. (2009) , teachers learned about adaptive teaching in a workshop, and were asked to incorporate it into their lessons. The intervention was the Prevention through Alternative Learning Styles (PALS) program aimed at prevention of alcohol-, tobacco-, and other drug (AOTD) abuse. Prevention of alcohol-, tobacco-, and other drugs is rather commonplace in secondary schools. For instance, in the US, students typically get into prevention programs more than once in their school career ( Kumar et al., 2013 ) and European schools are also encouraged to take action in promoting students' health ( World Health Organiasation, 2011 ). Teachers attended a 1-day workshop about adaptive teaching by means of: modifying time, increasing or decreasing the number of items to be learned or completed, increasing the level of support, changing the input or the way the material is presented, changing the output, adapting the amount of active participation, changing to alternate goals and expectations, adapting the level of difficulty for each individual, and providing different instruction and materials. In addition, teachers learned about alternative learning styles and disabilities. PALS materials were developed by the research team to match students' specific needs and related abilities. In a quasi-experimental study, four grade 6–8 teachers taught the 10 PALS intervention lessons to their classes and PALS team members taught another 24 classes. School officials suggested a convenient comparison group receiving the traditional prevention program. In reference to the control group, the PALS program had a large significant effect of d = +1.374 on students' knowledge of the effects of ATOD (see Table 2 ). These results were replicated in a second, within-group repeated measures design. Although the findings seem promising, more information is needed about how the approach was implemented; in the paper, it is unclear how teachers applied the information from the training in their instruction. Moreover, replication of the findings in a study in which teachers teach all project lessons may also help clarify whether the effects of the intervention were affected by the fact that project staff taught most lessons in the experimental condition.

We only selected two studies using a generic approach to differentiated instruction and the effects of the studies described above differ considerably regarding their intervention, school subject, and findings. This makes it hard to estimate the overall effectiveness of generic approaches. The study of Huber seems promising, but unfortunately, the study of Vogt and Rogalla did not lead to positive achievement effects for students across the primary and secondary school group. More studies are needed to gain insight in how teachers could effectively and efficiently be supported or coached to master the multifaceted approach of differentiated instruction.

Studies on Differentiated Instruction Using Homogeneous Clustering

A number of selected studies use a macro-adaptive approach to differentiated instruction ( Richards and Omdal, 2007 ; Altintas and Özdemir, 2015a , b ; Bal, 2016 ; Bikić et al., 2016 ). Of these studies, the study of Richards and Omdal (2007) has the most robust design. In this study, first year students were randomized over 14 classes and then classes were randomly assigned to conditions. Within the experimental condition, the science content for ability groups was adapted to students' learning needs by means of tiering. To study the effectiveness of the approach, 194 students were randomly assigned to classes in which the teachers used tiered content, while 194 other students were in the control group that worked with the midrange curriculum for 4 weeks. Each teacher was assigned at least one treatment and one control class. After a pretest, students in the experimental condition were assigned to three ability groups: a low background knowledge group (around the lowest scoring 10 percent of all students), a midrange group (about 80 percent), and a high background group (the highest scoring 10 percent). One of the researchers produced the instructional materials for the study. To develop the differentiated materials, first core instructional materials were developed that were aimed at the midrange group. Next, the content was differentiated for the low and high background students. Adaptations were made to the depth of content, the degree of teacher dependence and structuring, the number of steps, the skills, time on task, the product, and the available resources. Students were asked to work together within their tiers. There was an overall small significant effect of the intervention of d = +0.284 in favor of the tiering condition (see Table 2 ). Closer analyses of subgroup results (see Table 2 ) show that this is particularly due to a large effect for the low background learners of d = +1.057. For high-range learners, differences between the control condition and the experimental condition are near to zero ( d = +0.077), although this may be partly due to a ceiling effect on the test. The authors conclude that curriculum differentiation through tiered assignments can be an effective way to address the needs of low achieving students. They recommend, however, that it should be accompanied by professional support and that teachers who design the tiers should have substantial subject matter knowledge and experience with learners with different needs.

In the study by Bikić et al. (2016) , the effectiveness of differentiated instruction of geometry content within a problem-based learning approach is studied. In the quasi-experiment, the authors compare an approach in which students solved mathematics problems on three levels differing in complexity using problem-based learning to a control condition. The study design is not described in detail, but since the authors state “students of the experimental group and control group were not the students from the same school” it seems that schools were allocated to an experimental or control condition to study the effectiveness of the approach. Within the experimental condition, 88 secondary school students were assigned to three groups (low- average-, or high-achievers) based on an initial test, and then worked on adapted levels of geometry problems for 16 lessons before completing a final test. An example of the differentiated materials in the paper shows that the three ability groups all received a different task (which was a variation of the same task differing in complexity). Unfortunately, it is not described how the students exactly processed the content. In the control condition, 77 other students were taught in the usual, traditional manner. Students in the ability grouping condition outperformed the control students with a moderate positive effect of d = +0.539 (see Table 2 ). Subgroup analyses indicate that the approach was most effective for average ability students; students in the high achieving group did not outperform high achieving students in the control group. Do note however that the high achieving groups were small (12 exp. vs. 14 contr. students), hence, these results should be interpreted with caution. More research would be needed to clarify to which extent the differentiated content improved the effectiveness of the problem-based learning approach.

A different grouping approach is one based on preferred learning styles. In the study of Bal (2016) , grade 6 students completed an algebra pre-test as well as filling out a learning style inventory (kinesthetic, visual, affective learning styles). Algebra-learning materials an activities are adapted for two tiers; for low performing students and high performing students, also adapted for different learning styles of students in the experimental group. Despite the fact that there are reasons not to use learning styles as a distinction between students (see e.g., Kirschner et al., 2018 ), the authors did find large positive effects of the tiering approach after 4 weeks of teaching ( d = + 1.085, see Table 2 ). Do note however that ANCOVA results were used to calculate the effects which may lead to some positive bias in this estimate. Based on information from student-interviews presented in the paper, it seems that students experienced success in learning and enjoyed the materials and activities developed for the experimental condition. It is unclear however, how the materials and activities were made more appropriate for students' readiness (and learning style) and how they differed from the approach in the control condition that used traditional teaching. In that sense, it is difficult to judge what caused these positive findings. In another study on mathematics by Altintas and Özdemir (2015a , b) , teachers assessed students' preferred learning modalities by taking a multiple intelligences inventory. The data obtained from the inventory were used to determine the students' project topics, to select the teachers' teaching strategies, and to determine the relevant factors for motivating students. The effectiveness of the approach, which was originally designed for gifted students, was evaluated in a sample of 5 to 7th grade students in Turkey. After pretesting, one class of students was allocated to the experimental condition and one class of the same grade formed the control group. The authors report a very large effect of the intervention after six practices lasting 7 weeks each when compared to classes working with the Purdue model for both grade 6 and grade 7 students ( d = +4.504 across subgroups, see Table 2 ). However, it is difficult to discern what exactly caused this finding. Little information was provided about how exactly the teachers planned and executed the lessons and how students' activities and objectives were matched to their dominant intelligences, nor was there much information about possible confounding factors. In addition, since the researcher who developed the multiple intelligences theory admits that the theory is no longer up to date ( Gardner, 2016 ), one could question whether learning preferences could be better determined based on another distinction.

In summary, from the studies we found on the effectiveness approaches to differentiated instruction using homogeneous clustering, we could infer that overall small to medium sized effects (and in some cases also large effects) of the approach on student achievement can be achieved in beta subjects. The study of Altintas and Özdemir shows a very large effect of this approach and the study of Bal also shows large effects. However, before we can corroborate these findings, more information would be needed. When we look at the operationalizations of differentiated instruction in the two larger studies, we see that teachers used variations of learning tasks that were designed to better match the learning needs of different ability groups. Differential effects for student outcomes are somewhat variable; the results are most profound for the low achieving group in the study by Richards and Omdal (2007) , and for the low and average achieving group in the study of Bikić et al. (2016) . In both studies, effectiveness for the high achieving group seemed negligible.

Studies on Mastery Learning

In two included studies, mastery learning was used to boost student achievement in physics and mathematics. The quasi-experimental studies reporting on mastery learning approaches in secondary education used randomization of schools to conditions and were both performed in African schools ( Wambugu and Changeiywo, 2008 ; Mitee and Obaitan, 2015 ). In the papers, the authors describe similar characteristics of mastery learning in their theoretical framework, such as specifying learning goals, breaking down the curriculum into small units, formative assessment, using corrective instruction for students who did not reach mastery, and retesting. This process continues until virtually all the students master the taught material ( Mitee and Obaitan, 2015 ), which emphasizes its aim of convergent differentiation. Mittee and Obaitan report a large effect of the mastery learning approach of d = +1.461 based on an experiment in which about 400 students from four schools were allocated to a mastery learning or a control condition (see Table 2 ). Wambugu and Changeiywo randomly divided four classes from four schools over the mastery learning or the experimental condition. Comparing the results on the physics achievement test of the two experimental classes a two control classes, they found a large effect of mastery learning ( d = +1.322 based on the findings of an ANOVA, see Table 2 ). However, do note that pretests were only available for two out of four classes (one control and one experimental).

Unfortunately, the information on the mastery learning approach in the lessons is rather limited in both papers. Therefore, it is difficult to judge how such large achievement gains can be reached by implementing mastery learning in secondary education. Nevertheless, we can extract a number of recommendations: First, both studies use corrective instruction for helping students gain mastery. Secondly, in both studies the authors refer to some type of collaborative learning in the corrective instruction phase. Lastly, Wambugu and Changeiywo note that the time needed to develop the learning objectives, formative tests, and corrective activities is considerable so teachers may want to work together in teacher teams to achieve these goals. More high-quality research is needed to replicate these findings and to gain insight in how teachers can apply this approach in practice.

Studies on Individualized Differentiated Instruction

The large-scale quasi-experimental study on differentiated reading instruction in middle schools by Little et al. (2014) used individualized adaptations to address students' learning needs. They used a program called the Schoolwide Enrichment Model-Reading Framework (SEM-R) to support students' reading adaptively. The SEM-R approach consists of three phases: (1) short read-alouds by the teacher (“Book Hooks”) and brief discussions about books, (2) students read independently in self-selected, challenging books while the teacher organizes individualized 5- to 7-min conferences with each student once every 1 to 2 weeks, (3) interest-based and more project-oriented activities. Professional development of teachers included workshops as well as classroom support from project staff. The focus of the intervention was on phases 1 and 2. Teachers were expected to implement SEM-R on a daily basis for about 40 to 45 min per day or 3 h per week. In a cluster-randomized design executed in four middle schools with 2,150 students, the effectiveness of the approach was compared to that of traditional teaching. The effects of the approach varied considerably across the different schools. The authors reported that, for the reading fluency outcome, SEM-R students significantly outperformed their control counterparts in two out of four schools. The standardized mean differences ranged from about −0.1 to +0.3 between the schools (see Table 2 ). The authors conclude that the intervention was at least as effective as traditional instruction. However, the wide range of implementations and effects on student outcomes between classes and schools illustrates the difficulty of implementing intensive forms of individualization in practice.

In the survey study of Smit and Humpert (2012) , the authors assessed which teaching practices teachers used to differentiate their teaching. In this sub-study of the project “Schools in Alpine Regions,” teachers from 8 primary schools and 14 secondary schools in the rural Alpine region of Switzerland participated. Teachers responded to a teacher questionnaire about differentiated instruction. They mainly reported to make adaptations at the individual level by, for instance, providing students with individual tasks (tiered assignments), adapting the number of tasks, or providing more time to work on tasks. Teachers often used “learning plans” as well as tasks in which students could take individual learning trajectories varying the content or learning rate. Flexible grouping was less common and alternative assessments were very rare. Peer tutoring occurred frequently, and tiered assignments were very common. On average, 38% of teachers' weekly lessons were differentiated. The authors conclude that teachers in their sample, on average, did not execute very elaborate differentiated instruction. Moreover, no significant relation between differentiated instruction and student achievement was found for neither a standardized language test ( d = −0.092) nor a standardized mathematics test ( d = −0.085, see Table 2 ). Following the survey study, an intervention study was executed with 10 of the schools that were included in the survey-study. In this study (that was not included in our selection since it was not published in an academic journal), teachers participated in workshops and team meetings and logged their learning experiences in portfolios. Teachers barely progressed in their differentiated instruction during the 2.5-year project ( Smit et al., 2011 ). Nevertheless, a high pedagogical team culture in schools was found to have a positive influence teachers' differentiated instruction ( Smit et al., 2011 ; Smit and Humpert, 2012) , and as such may be one of the keys to achieve improvement.

Overall, it seems that it is rather difficult to boost the achievement of the whole class by means of individualized approaches. However, as Little et al. (2014) suggest, individualization may be used as an approach to increase students' engagement with the learning content. A drawback of the approach may be that the requirements for organizing and monitoring learning activities by the teacher in individualized approaches could leave less time for high quality pedagogical interaction. Possibly, future research on individualization supported by digital technology may open up more possibilities for this approach to have high impact on student achievement ( Education Endowment Foundation, n.d. ).

Studies on Differentiated Instruction Using Heterogeneous Clustering

One of the included studies used differentiated instruction within mixed-ability learning settings. In the study by Mastropieri et al. (2006) , grade eight students worked on science assignments in groups of two or three. Peer-mediated differentiated instruction and tiering was used to adapt the content to students' learning needs within the groups. The authors developed three tiers of each assignment varying in complexity. Within the peer groups, students could work on activities on their own appropriate level and continue to the next level once proficiency was obtained. All lower ability level students—including students with learning disabilities—were required to begin with the lowest tier. In the experiment, 13 classes with a total of 216 students were assigned to the peer-mediated differentiated content condition or a teacher-led control condition. The researchers divided the classes in such a way that each teacher taught at least one experimental and one control classroom. After about 12 weeks, a small positive effect was found in favor of the peer-mediated condition with tiered content on both the unit test and the high stakes end of year test (respectively d = + 0.466 and d = + 0.306, see Table 2 ). The overall effect of d = +0.386 is comparable to that of the tiering intervention of Richards and Omdal (2007) discussed earlier. The effect is slightly higher, but this may also partly be affected by the use of adjusted means. In any case, more research is needed to disentangle the effects of the peer-learning and the differentiated content.

Studies on Differentiated Instruction in Flipped Classrooms

In flipped classroom instruction, content dissemination (lecture) is moved outside of the classroom, typically by letting students watch instructional videos before the lesson. This opens up more time for active learning inside the classroom ( Leo and Puzio, 2016 ). This format implies differentiation of learning time and pace before the lesson since students may rewind, pause or watch the video's multiple times according to their learning needs. However, whether the activities during the lesson encompass our operationalization of differentiated instruction (see Table 1 ) varies. From a recent meta-analysis on flipping the classroom ( Akçayir and Akçayir, 2018 ), we found one study in secondary education in which remediation in the classroom was mentioned as being part of the intervention. Bhagat et al. (2016) report on a quasi-experiment in which 41 high school students were assigned to a classroom using flipping-the-classroom and 41 students were in the control condition. The experimental group underwent “flipped” lessons on trigonometry for 6 weeks, while the control group followed similar lessons using the conventional learning method. Students in the flipped condition watched videos of 15–20 min before the lesson. During the lesson, students discussed problems collaboratively and, in the meantime, students who needed remediation were provided with extra instruction. After the intervention, students from the flipped classrooms outperformed their counterparts on a mathematics test and were more motivated. The authors report a large effect of the intervention on students' mathematics achievement based on analysis of covariance. However, the combined effect across the subgroup mean differences is modest d = 0.376, see Table 2 ). On average, experimental students of all abilities performed better, except for high achievers who did not significantly outperform the control group. These differential effects should be interpreted with caution because of the limited number of students in the subgroups. The pro of this study is that it gives some insights in the benefits of differentiated instruction embedded in an innovative approach to teaching. Yet, the authors did not specify clearly what the remediation and collaborative learning in the classroom consisted of and cannot disentangle effects of different elements of the intervention. More research would be needed to clarify the role and effectiveness of differentiated instruction in flipped settings.

Contextual and Personal Variables

As we discussed in the theoretical framework, many variables may influence teachers' implementation of differentiated instruction. We hoped to find evidence for this assumption in our selection of papers. However, in general, little information was provided about contextual and personal factors such as school, class, or teacher characteristics.

In our sample of studies, differentiated instruction was mostly applied to teaching mathematics and science. Additionally, there were also papers on literacy and social sciences. No clear differences in effectiveness could be observed between the subjects. Students varied in background characteristics across the studies. In the study by Little et al. (2014) , for instance, about 48 to 77 percent of students were from low SES. In the study by Mastropieri et al. (2006) , many ethnicities were represented. In the studies by Huber et al. (2009) , students were mostly European-American. Student ages varied from about 11 to 17 years old (see Table 2 ). Teacher characteristics were rarely reported. In the study by Mastropieri et al. (2006) , relatively inexperienced teachers participated with a mean of about 3 years in their current position, and in the studies by Vogt and Rogalla (2009) and Smit and Humpert (2012) , years of teaching experience varied considerably, with an average of about 15 to 17 years.

The only variable that is rather consistent across the studies is that teachers in the included studies relied considerably on external sources of information or support to help them implement differentiated instruction within their classrooms. In most of the selected studies, the research team developed materials for students, and teachers were instructed or coached in implementing the interventions (see Table 2 ). Although we aimed to select practical interventions, little information is provided about whether teachers were able to successfully execute the differentiated instruction practices independently in the long run.

Overall Effects of Differentiated Instruction

Ideally, combining our narrative reflection on the included papers with a meta-analysis of the findings would give us an answer as to how effective within-class differentiated instruction in secondary education may be. However, unfortunately, the number of papers that remained after applying our selection criteria is limited and the studies are heterogeneous in nature so meta-analyses of results should be interpreted with caution. To inform the readers however, we did add a forest plot with an overview of the average effect size of each individual study to the appendix (see Appendix D ). In Table 2 the effects and intermediate calculations for individual studies are described. A summary effect across all studies is also reported ( d = +0.741; 95% CI = 0.397–1.1085; Q = 507.701; df = 14; p < 0.01). The p -value of the Q statistic was significant which may indicate heterogeneity of the papers meaning that the true effects of the interventions may vary. Noticeably, the largest studies in our sample show small positive effects of differentiated instruction. In contrast, the relatively small studies reported on large effects, and the other studies mostly show moderate effects of the approach. A cumulative analysis (see Appendix D ) illustrates that the small study by Altintas and Özdemir (2015a , b) considerably shifts the point estimate of the effect size in the positive direction. Excluding this outlier, the summary effect of differentiated instruction is d = +0.509 (95% CI = 0.215–0.803; see Appendix D ). A funnel plot was made to check for publication bias (see Appendix E ). Using Duval and Tweedie's Trim and Fill method ( Duval and Tweedie, 2000 ), no adjusted values were estimated. This indicates that there is no evidence of publication bias. These analyses give some information about the range of effects that can be achieved with differentiated instruction interventions ranging. However, unquestionably, more information is needed before drawing a more definitive conclusion about the overall and relative effects of different approaches to differentiated instruction in secondary schools.

Suggestions for Reporting on Differentiated Instruction Interventions

One of the issues we encountered when performing this review, was that interventions and research methodologies were often described rather briefly. In addition, relevant context information was frequently missing. This is problematic, not only from a scientific point of view, but also to judge the transferability of the findings to practice. Therefore, we encourage researchers to diligently report on the methods and analytical techniques they used and to be specific about the outcomes that led to their conclusions (see e.g., Hancock and Mueller, 2010 ). Except for this general suggestion, we would like to provide a number of specific recommendations for reporting on differentiated instruction interventions (see Appendix F ).

Conclusion and discussion

The most important conclusion from our systematic review of the literature is that there are too few high-quality studies on the effectiveness of differentiated instruction in secondary education. Only 12 studies from 14 papers were selected after applying strict selection criteria to a large amount of literature on the topic. As expected, we found papers on various operationalizations of differentiated instruction like homogeneous grouping, differentiated instruction in peer-learning, and individualization. However, even within the most well-known approaches like ability grouping, the empirical evidence was limited. High quality teacher-led differentiated instruction studies in secondary education are scarce, although the literature on ICT-applications for differentiated instruction seems to be on the rise. This paucity has not changed much after our search, although there are some recent interesting endeavors for teacher professionalization in differentiated instruction ( Brink and Bartz, 2017 ; Schipper et al., 2017 , 2018 ; Valiandes and Neophytou, 2018 ) and there have been some recent small-scale studies including aspects of differentiated instruction ( Sezer, 2017 ; Adeniji et al., 2018 ). This paucity is remarkable given the large interest for the topic of differentiated instruction in both the literature as well as in policy and practice. Apparently, the premises of differentiated instruction seems substantial enough for schools and policy makers to move towards implementation before a solid research base has been established. On the one hand, this seems defendable; differentiated instruction matches the ambitions of educationists to be more student-oriented and to improve equity among students. In addition, there is prior research showing benefits of approaches like ability grouping and mastery learning for K-12 students' achievement ( Guskey and Pigott, 1988 ; Kulik et al., 1990 ; Kulik, 1992 ; Lou et al., 1996 ; Hattie, 2009 ; Steenbergen-Hu et al., 2016 ). Furthermore, the ideas behind differentiated instruction are in line with approaches which have repeatedly been linked to better learning such as having students work on an appropriate level of moderate challenge according to their “zone of proximal development” and matching learning tasks to students' abilities and interests to create “flow” ( Tomlinson et al., 2003 ). On the other hand, more research on different operationalizations of differentiated instruction is needed to help teachers and policy makers to determine which approaches are helpful for students of different characteristics and to gain insight in how these could be implemented successfully. From prior research in primary education, we know that it is likely that not all approaches have comparable effects, and that effects for low- average- and high ability students may vary ( Deunk et al., 2018 ). Our current review shows that there is much work to be done in order to further clarify which approaches work and why within the context of secondary education.

Having said that, the studies that we did find do give us some directions about the expectations we may have about the effectiveness of differentiated instruction in secondary education. Most well-designed studies in our sample reported small to medium-sized positive effects of differentiated instruction on student achievement. This finding is comparable to the moderate effects found in most differentiated instruction reviews (e.g., Kulik, 1992 ; Lou et al., 1996 ; Steenbergen-Hu et al., 2016 ) and other studies on educational interventions ( Sipe and Curlette, 1996 ). The overall effect in our study is a bit higher than in prior reviews, possibly due to the inclusion of various approaches to differentiated instruction, including mastery learning and more holistic approaches. Although we cannot give a conclusive answer about the effectiveness of differentiated instruction in secondary education, most of the included studies do illustrate the possibility of improving student achievement by means of differentiated instruction.

Moreover, the selected papers give insight in the many different ways that differentiated instruction can be operationalized and studied in secondary education. For instance, a number of studies used generic training of teachers in principles of differentiated instruction. Based on the findings, we would suggest that more research is needed to study how teachers can adequately be guided to implement such holistic approaches into their daily teaching (compare practicality theory by Janssen et al., 2015 ). Alternatively, in four of the selected studies homogeneous clustering by means of tiering and ability grouping was used as a structure for differentiated instruction. For the subgroups, learning content was adapted to better fit the needs of the students ( Richards and Omdal, 2007 ; Altintas and Özdemir, 2015a , b ; Bal, 2016 ; Bikić et al., 2016 ). Medium to large positive effects were reported of such an approach, indicating this may be one of the ways teachers may address differentiated instruction. This finding is comparable to findings on ability grouping in the meta-analyses by Steenbergen-Hu et al. (2016) and Lou et al. (1996) . The effects were somewhat larger compared to those in the studies in primary education discussed by Deunk et al. (2018) and Slavin (1990a) . One possible explanation might be that some of the studies mentioned in those previous reviews may have included grouping without any instructional adaptations, which was excluded from the current review. Also, in our selected papers on homogeneous clustering, researcher-developed outcome measures were used. Researcher-developed measures have previously been associated with larger effects than standardized measures ( Slavin, 1987 ; Lou et al., 1996 ). Turning to another approach, two studies were reviewed on the effectiveness of mastery learning. The authors reported large effects of mastery learning on student achievement. However, since the research methods were not thoroughly described in the papers, we cannot say much about the quality of the intervention nor the implementation. Two other studies focused on individualization. Overall, small and non-significant effects of this approach were found. It could be that teachers grapple with the organizational requirements of individualized instruction ( Education Endowment Foundation, n.d. ). Additionally, a study was found that successfully embedded differentiated instruction in a peer-learning setting by means tiered content matching students' learning needs ( Mastropieri et al., 2006 ). Lastly, one of the studies embedded remediation and collaboration in a flipped-classroom format illustrating how differentiated instruction can be applied within different approaches to teaching ( Bhagat et al., 2016 ).

Unfortunately, in only three studies, authors reported on differential effects for subgroups of students within classes. This makes it difficult to judge which differentiated instruction approach is most suitable for whom. In the studies ( Richards and Omdal, 2007 ; Bhagat et al., 2016 ; Bikić et al., 2016 ) that did report effects for subgroups, the interventions were shown to be most beneficial for low achieving (and in case of Bikić also the average achieving) subgroups of students, even though the learning content was adapted to better match the needs of other students too. However, it remains unclear whether this was caused by the differentiated instruction, by the fact that the teachers directed more attention toward low performing students, or by the fact that the outcome measures did not match the adapted content. In addition, the subgroups were relatively small, limiting the power of the findings. Therefore, more empirical evidence is needed about the implementation and relative effects of differentiated instruction to further inform the “differentiation-dilemma” of how to best divide time over students with different needs ( Denessen, 2017 ).

Regarding the contextual and personal variables across studies, students' age, the school subjects and teaching experience of teachers varied. The fact that positive results have been replicated in several settings with different populations, gives a first indication that the approach may be transferable across different contexts ( Petticrew and Roberts, 2006 ). One consistent finding across the studies is that teachers relied on external support to implement within-class differentiated instruction during the interventions. This is to be expected, since prior reviews found that implementing differentiated instruction is quite complex for teachers and that they may need considerable guidance to get it right ( Tomlinson et al., 2003 ; Subban, 2006 ; Van Casteren et al., 2017 ). Previous studies show that teachers receiving more professional development in differentiated instruction perceive higher efficacy and adapt their teaching to students more often ( Dixon et al., 2014 ; Suprayogi et al., 2017 ).

The contribution of the current review to existing knowledge of the effects of differentiated instruction on students' achievement in secondary education is as follows: First, it provides an overview of theoretical concepts and operationalizations of differentiated instruction in the classroom. Next, it shows that a systematic review of the literature leads to a limited body of evidence regarding the effectiveness of within-class differentiated instruction in secondary education. This overview of the state of the art within this theme may inform further research initiatives. Additionally, the study addresses some contextual and personal factors that may affect teachers' differentiated instruction.

Limitations

The most salient drawback of the review is the limited number of studies that were included. On the one hand, it is unfortunate that the limited number of selected papers makes it difficult to come to definitive conclusions about the effectiveness of within-class differentiated instruction. On the other hand, the importance of using systematic reviews to identify research gaps to inform further development of the field should not be underestimated ( Petticrew and Roberts, 2006 ). Defining consistent criteria for the selection of the best evidence available—as we have done in this study—may limit the number of selected studies but does help to ensure that the studies that are selected are highly informative ( Slavin, 1995 ). The limited number of studies we found is just about comparable to the number of within-class approaches that were selected in a recent review of between-class and within-class differentiated instruction in primary education ( Deunk et al., 2018 ). We only included studies in which student achievement was reported as an outcome measure. In future research, adding other types of outcomes and other types of study designs could add to the breadth of the research base.

Another limitation has to do with the quality of the selected papers and consequently with our approach to the analyses. First, the fact that we did not locate any truly randomized designs necessitates caution in interpreting the findings. Potential biases are likely to be greater for non-randomized studies compared to randomized trials ( Higgins and Green, 2011 ). Second, the number of participants at the level of randomization (often the classroom level) was mostly low. Furthermore, it was sometimes difficult to determine the quality of the studies due to a lack of information in the papers. We tried to gain insight in the differentiated instruction interventions, but often essential information was omitted. Also, the conversion to Cohen's d could not always be done using an identical approach across the different studies. Must studies reported pre- and/or post-scores on achievement tests that we could use to calculate the effects in a rather straightforward manner, but in a few cases we had to estimate effects based on other types of information (for instance adjusted means or analyses of variance) which may complicate comparability across studies. Another drawback is that authors sometimes provided the outcomes of subgroups (for instance classes or ability groups within classes), sometimes only outcomes of the experimental conditions, or sometimes both. In the case of differentiated teaching, researchers should clearly explain their aims regarding which students they want to support (convergent or divergent). And if the aims differ per subgroup, they should ideally report these separate effects too. To inform future research on the topic, we have suggested some reporting guidelines that may help to clarify the content of future approaches to differentiated instruction and how they were studied in the Appendix.

A final limitation, inherent to a topic that is so multifaceted, is that the choices we have made in how we defined within-class differentiated instruction have influenced our selection of the literature and, thus, should be considered when interpreting the findings. The existing literature is marked by different ways of defining and operationalizing differentiated instruction ( Suprayogi et al., 2017 ; Deunk et al., 2018 ). As such, our review may differ from the operationalizations of other authors. In addition, other ways to adapt teaching to students' learning needs are also certainly interesting to consider by teachers who want to better align teaching to students' needs. For example, the use of scaffolding techniques in which instruction is broken up in chunks, and instruction in each chunk is provided contingent to students' level of understanding is a promising instructional technique ( Van de Pol et al., 2010 , 2015 ). In addition, formative assessment is a helpful starting point for differentiated instruction or other types of adaptive teaching ( Kingston and Nash, 2011 ). Furthermore, as discussed in the theoretical framework, differentiated instruction is a broad construct that adds up as a sum of its parts including lesson planning, differentiated instruction, evaluation and general high-quality teaching behaviors. We could not include all these factors into the working definition used to select and synthesize the studies. Therefore, readers should keep in mind that in order to understand differentiated instruction comprehensively and apply it in practice, there is more to it than just executing a differentiated lesson. A thoughtful approach using different steps starting from planning to evaluation including high quality teaching behaviors is key.

Recommendations for Research and Practice

We would like to urge researchers to further study the impact and implementation of differentiated instruction. First, reviews and meta-analyses combining quantitative and qualitative information on the effects of different approaches to differentiated instruction for different outcomes may add further to the current knowledge base ( Dixon-Woods et al., 2005 ). When more quantitative studies are located, this enables more statistical possibilities that can be used to gain insight in differential effects and predictive characteristics of different student outcomes ( Lou et al., 1996 ; Moeyaert et al., 2016 ; Deunk et al., 2018 ). And qualitative studies may help us understand how teachers differentiate and how their subjective experiences in the classroom influence their differentiated instruction ( Civitillo et al., 2016 ). In addition, authors may want to add studies on affective student outcomes as well. For example, students may have better attitudes and motivation in differentiated classes in which teaching better matches their learning needs ( Kulik and Kulik, 1982 ; Lou et al., 1996 ; Maulana et al., 2017 ; Van Casteren et al., 2017 ).

Second, future studies on the development and evaluation of differentiated instruction interventions could add to the knowledge base about how to reach differentiated instruction's potential in practice. In order to support teachers, specific coaching on the job by experienced peers or external coaches or other types of professionalization may help to develop awareness and implementation of differentiated instruction ( Latz et al., 2009 ; Smit and Humpert, 2012 ; Parsons et al., 2018 ; Valiandes and Neophytou, 2018 ). Teachers should learn to reflect upon the decisions they make when adapting their teaching ( Parsons et al., 2018 ). Moreover, teachers need team support and sufficient time to develop their differentiated instruction ( Stollman, 2018 ). Research shows that teachers themselves are quite enthusiastic about bottom-up professionalization approaches like peer-coaching or professional learning communities ( Van Casteren et al., 2017 ). Whatever approach one chooses, there are some characteristics which may facilitate the effectiveness of professionalization including: a focus on both content and pedagogical knowledge, sufficient duration of the intervention, initial training and follow-up sessions, a facilitation of collaboration and communication with colleagues and experts, constant on-site support and help during the implementation- and the development of personal skills for reflection and self-evaluation of teachers ( Valiandes and Neophytou, 2018 ). In addition, teacher educators should be mindful of teacher differences themselves too by providing differentiated professionalization ( Stollman, 2018 ). In this review, we did not include studies on the effectiveness of adaptive ICT applications on students' progress. However, ICT can play a significant role in the creation of student-centered learning environments when used as more than a simple add-on to regular teaching ( Smeets and Mooij, 2001 ; Deunk et al., 2018 ). Some recent studies on adaptive or personalized ICT programs, digital pen technologies, and blended learning show that such interventions can support differentiated instruction and have positive effects on student achievement ( Walkington, 2013 ; Chen et al., 2016 ; Van Halem et al., 2017 ; Ghysels and Haelermans, 2018 ), although more research is needed to assess for whom and for which type of outcomes these approaches are beneficial ( Van Klaveren et al., 2017 ). In the studies in this review, fixed outcome measures were used to assess students' learning. Possibly, adaptive testing will provide more room for assessing differentiated growth trajectories in future studies ( Martin and Lazendic, 2018 ).

Lastly, when aiming to gain further insight in the effectiveness of differentiated instruction, authors may want to reflect on how differentiated instruction is operationalized and measured. In prior research, teacher questionnaires were often used to assess teachers' differentiated instruction practices ( Roy et al., 2013 ; Prast et al., 2015 ). In addition, classroom observations of differentiated instruction or adaptive teaching behavior have been used ( Cassady et al., 2004 ; Van Tassel-Baska et al., 2006 ; Van de Grift, 2007 ). Alternatively, in our selection of papers, we found some interesting ways to determine how teachers differentiate. For example, using vignette or video tests ( Vogt and Rogalla, 2009 ; Bruhwiler and Blatchford, 2011 ) or by means of teacher logs or observations ( Little et al., 2014 ). Enriching measures of teacher behavior with information about the match of the behavior with students' needs may be another step forward ( Van Geel et al., 2019 ). We would like to recommend authors to further develop, evaluate and apply measures for differentiated instruction that can be used to gain insight in how differentiated instruction is linked to various student outcomes.

Data Availability Statement

The datasets generated for this study are available on request to the corresponding author.

Author Contributions

AS-J set up the methods of the paper, analyzed the theoretical backgrounds and is responsible for the concept of the article, and together with co-authors, extracted data, performed the analyses, and wrote the paper. AM coordinated the selection of studies, worked on data selection and extraction, and contributed to writing the paper. MH-L and RM designed the overarching project, acquired funding for the execution, and contributed to the conceptualization of differentiated instruction and the review process.

This work was supported by the Dutch scientific funding agency (NRO) under Grant number 405-15-732.

Conflict of Interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Acknowledgments

We want to thank Bernie Helms for his contribution to the practical work needed to execute this study. Additionally, we greatly value the consultations regarding the analyses with our colleagues Dr. Hester de Boer and Prof. Dr. Roel Bosker from GION Educational Sciences.

Supplementary Material

The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fpsyg.2019.02366/full#supplementary-material

1. ^ We did not include search terms specifically referring to heterogeneous approaches in the search string. Although heterogeneous grouping may include differentiation, adaptiveness is often not the focus of these studies.

2. ^ Quasi-experimental studies in which experimental and control groups are well matched, and covariates that correlate strongly with pretests are used to adjust outcomes, can be a valuable source of information usable for meta-analyses ( Slavin et al., 2008 ; Slavin and Smith, 2009 ), although the results of (especially small-scale) quasi-experimental studies should be evaluated with caution ( Cheung and Slavin, 2016 ).

3. ^ References included in the systematic review are marked with an asterisk.

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Keywords: review, differentiation, differentiated instruction, adaptive teaching, ability grouping, secondary education, student performance, effectiveness

Citation: Smale-Jacobse AE, Meijer A, Helms-Lorenz M and Maulana R (2019) Differentiated Instruction in Secondary Education: A Systematic Review of Research Evidence. Front. Psychol. 10:2366. doi: 10.3389/fpsyg.2019.02366

Received: 14 May 2019; Accepted: 04 October 2019; Published: 22 November 2019.

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Copyright © 2019 Smale-Jacobse, Meijer, Helms-Lorenz and Maulana. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Annemieke E. Smale-Jacobse, a.e.smale-jacobse@rug.nl

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Differentiated Instruction as an Approach to Establish Effective Teaching in Inclusive Classrooms

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• Esther Gheyssens   ORCID: orcid.org/0000-0003-4871-6780 4 , 5 ,
• Júlia Griful-Freixenet   ORCID: orcid.org/0000-0001-9317-9617 5 , 6 &
• Katrien Struyven   ORCID: orcid.org/0000-0002-6562-2172 5 , 7  

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Differentiated Instruction has been promoted as a model to create more inclusive classrooms by addressing individual learning needs and maximizing learning opportunities. Whilst differentiated instruction was originally interpreted as a set of teaching practices, theories now consider differentiated instruction rather a pedagogical model with philosophical and practical components than the simple act of differentiating. However, do teachers also consider differentiated instruction as a model of teaching? This chapter is based on a doctoral thesis that adopted differentiated instruction as an approach to establish effective teaching in inclusive classrooms. The first objective of the dissertation focused on how differentiated instruction is perceived by teachers and resulted in the DI-Quest model. This model, based on a validated questionnaire towards differentiated instruction, pinpoints different factors that explain differences in the adoption of differentiated instruction. The second objective focused on how differentiated instruction is implemented. This research consisted of four empirical studies using two samples of teachers and mixed method. The results of four empirical studies of this dissertation are discussed and put next to other studies and literature about differentiation. The conclusions highlight the importance of teachers’ philosophy when it comes to implementing differentiated instruction, the importance of perceiving and implementing differentiated instruction as a pedagogical model and the importance and complexity of professional development with regard to differentiated instruction.

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• Differentiated instruction
• Effective teaching
• Inclusive classrooms

1 Introduction

Differentiated Instruction (DI) has been promoted as a model to facilitate more inclusive classrooms by addressing individual learning needs and maximizing learning opportunities (Gheyssens et al., 2020c ). DI aims to establish maximal learning opportunities by differentiating the instruction in terms of content, process, and product in accordance with students their readiness, interests and learning profiles (Tomlinson, 2017 ). This chapter is based on a doctoral thesis that adopted DI as an approach to establish effective teaching in inclusive classrooms. This doctoral dissertation consisted of four empirical studies towards the conceptualisation and implementation of DI (Gheyssens, 2020 ). This chapter summarizes the most important results of this dissertation and includes three parts. First the conceptualisation of DI is discussed. Second, we discuss literature findings regarding the effectiveness of DI. Third, the results of the studies about the implementation of DI are discussed. Finally, based on the previous parts some recommendations for implementation are presented.

2 Conceptualisation of Differentiated Instruction

2.1 defining differentiated instruction.

Differentiated instruction (DI) is an approach that aims to meet the learning needs of all students in mixed ability classrooms by establishing maximal learning and differentiating instruction with regard to content, process and product in accordance with student needs in terms of their readiness (i.e., student’s proximity to specified learning goal), interests (i.e., passions, affinities that motivate learning) and learning profiles (i.e., preferred approaches to learning) (Tomlinson, 2014 ). Whilst DI was originally interpreted as a set of teaching practices or simplified as the act of differentiating (e.g. van Kraayenoord, 2007 ; Tobin, 2006 ), it is evolved towards a pedagogical model with philosophical and practical components (Gheyssens, 2020 ). This model is rooted in the belief that diversity is present in every classroom and that teachers should adjust their education accordingly (Tomlinson, 1999 ). Tomlinson ( 2017 ) states that DI is an approach where teachers are proactive and focus on common goals for each student by providing them with multiple options in anticipation of and in response to differences in readiness, interest, and learning needs (Tomlinson, 2017 ). From this perspective, differentiation refers to an educational process where students are made accountable for their abilities, talents, learning pace, and personal interests (Op ‘t Eynde, 2004 ). This means that teachers proactively plan varied activities addressing what students need to learn, how they will learn it, and how they show what they have learned. This increases the likelihood that each student will learn as much as he or she can as efficiently as possible (Tomlinson, 2005 ). Moreover, DI emphasizes the needs of both advanced and struggling learners in mixed-ability classroom. In more detail, Bearne ( 2006 ) and Tomlinson ( 1999 ) consider differentiation as an approach to teaching in which teachers proactively adjust curricula, teaching methods, resources, learning activities and student product so that various student’s needs are satisfied (individuals or small groups) and every student is provided with maximum learning opportunities (in Tomlinson et al., 2003 ).

2.2 The DI-Quest Model

Considering DI as a pedagogical model rather than as a set of teaching strategies became also clear in the validity study of Coubergs et al. ( 2017 ) when they tried to measure DI empirically. Their research resulted in the so-called ‘DI-Quest model’, based on the DI-questionnaire the researchers developed for investigating DI. This model pinpoints different factors that explain differences in the adoption of differentiated instruction (Coubergs et al., 2017 ). It was inspired by the differentiated instruction model developed by Tomlinson ( 2014 ), which presents a step by step process demonstrating how a teacher moves from thinking about DI toward implementing it in the classroom. According to this model, the teacher can differentiate content, process, product, and environments to respond to different needs in learning based on students’ readiness, learning profiles, and interests. Tomlinson ( 2014 ) also stipulates that, to respond adequately to students’ learning needs, teachers should apply general classroom principles such as respectful tasks, flexible grouping, and ongoing assessment and adjustment. In contrast with Tomlinson’s well-known DI model, which also contains concepts relating to good teaching, the DI-Quest model distinguishes teachers who use DI less often from those who use it more often (Gheyssens et al., 2020c ). The DI-Quest model comprises five factors. The five factors are presented in three categories. The key factor, similar to Tomlinson’s ( 2014 ) model, is adapting teaching to students’ readiness, interests, and learning profiles. This is the main factor because it represents the ‘core business’ of differentiating: the teachers adapt his/her teaching to three essential differences in learning. The second and third factors represent DI as a philosophy. The fourth and fifth factor represent differentiated strategies in the classroom (Fig. 30.1 ). Below the figure the different factors are discussed on detail.

The DI-Quest model

2.2.1 Adaptive Teaching

Adaptive teaching illustrates that the teacher provides various options to enable students to acquire information, digest, and express their understanding in accordance with their readiness, interests, and learning profiles (Tomlinson, 2001 ). Differences in learning profiles are described by Tomlinson and colleagues ( 2003 , p. 129) as “a student’s preferred mode of learning that can be affected by a number of factors, including learning style, intelligence preference and culture.” Applying different learning profiles positively influences the effectiveness of learning because students get the opportunity to lean the way they learn best. Responding to student interests also appears to be related to more positive learning experiences, both in the short and long term (Woolfolk, 2010 ; Tomlinson et al., 2003 ). Ryan and Deci ( 2000 ) claimed that understanding what motivates students will help develop interest, joy, and perseverance during the learning process. Thus, investing in differences in interests increases learning motivation among students. Taking account of students’ readiness can also lead to higher academic achievement. Readiness focuses on differences arising from a student’s learning position relative to the learning goals that are to be attained (Woolfolk, 2010 ). When taking students’ readiness into account enables every student to attain the learning objectives in accordance with their learning pace and position (Gheyssens et al., 2021 ).

2.2.2 Philosophy of DI

The first philosophical factor to consider is the ‘growth mindset’. Tomlinson ( 2001 ) addressed the concept of mindset in her DI model by stating that a teacher’s mindset can affect the successful implementation of differentiated instruction (Sousa & Tomlinson, 2011 ). Teachers with a growth mindset set high goals for their students and believe that every student is able to achieve success when they show commitment and engagement (Dweck, 2006 ). The second philosophical factor is the ‘ethical compass’. This envisions the use of curriculum, textbooks, and other external influences as a compass for teaching rather than observations of the student (Coubergs et al., 2017 ; Tomlinson & Imbeau, 2010 ). An ethical compass that focuses on the student embodies the development of meaningful learning outcomes, devises assessments in line with these, and creates engaging lesson plans designed to enhance students’ proficiency in achieving their learning goals (Tomlinson & Imbeau, 2010 ). Research on self-reported practices demonstrated that teachers with an overly rigid adherence to a curriculum that does not take students’ needs into account, report to adopt less adaptive teaching practices (Coubergs et al., 2017 ; Gheyssens et al., 2020c ).

2.2.3 Differentiated Classroom Practices

The next factor is the differentiated practice to be explained is ‘flexible grouping’. Switching between homogeneous and heterogeneous groups helps students to progress based on their abilities (when in homogeneous groups) and facilitates learning through interaction (when in heterogeneous groups) (Whitburn, 2001 ). Given that the aim of differentiated instruction is to provide maximal learning opportunities for all students, variation between homogeneous and heterogeneous teaching methods is essential. Coubergs et al. ( 2017 ) found that combining different forms of flexible grouping positively predicts the self-reported use of adaptive teaching in accordance with differences in learning. The final factor in the DI-Quest model is the differentiated practice ‘Output = input.’ This factor represents the importance of using output from students (such as information from conversations, tasks, evaluation, and classroom behaviour) as a source of information. This output of students is input for the learning process of the students themselves by providing them with feedback. But this output is also crucial input for the teacher in terms of information about how students react to his/her teaching (Hattie, 2009 ). Assessment and feedback are not the final steps in the process of teaching, but they are an essential part of the process of teaching and learning (Gijbels et al., 2005 ). In this regard, Coubergs et al. ( 2017 ) state that including feedback as an essential aspect of learning positively predicts the self-reported use of adaptive teaching.

3 Effectiveness of Differentiated Instruction

Several studies dealing with the effectiveness of DI have demonstrated a positive impact on student achievement (e.g. Beecher & Sweeny, 2008 ; Endal et al., 2013 ; Mastropieri et al., 2006 ; Reis et al., 2011 ; Smale-Jacobse et al., 2019 ; Valiandes, 2015 ). However, while recent theories plead for a more holistic interpretation of DI, being a philosophy and a practice of teaching, empirical studies on the impact on student learning are often limited to one aspect of DI, e.g. ability grouping, tiering, heterogenous grouping, individualized instruction, mastery learning or another specific operationalization of DI (e.g. Bade & Bult, 1981 ; Tomlinson, 1999 ; Vanderhoeven, 2004 ; Smale-Jacobse et al., 2019 ). Often studies on DI are also fragmented in studies on ability grouping, tiering, heterogenous grouping, individualized instruction, mastery learning or another specific operationalization of DI (Coubergs et al., 2013 ; Smale-Jacobse et al., 2019 ). Although effectiveness can be found for most of these operationalisations, overall the evidence is limited and sometimes even inconclusive (e.g. evidence of the benefits on ability grouping). Indeed research indicates that DI has the power to benefit students’ learning. However, this might not always be the case for all students. For example Reis and colleagues demonstrated that at-risk students are most likely to benefit from DI (e.g. Reis et al., 2011 ). By contrast, experimental research on DI by Valiandes ( 2015 ) showed that although the socioeconomic status of students correlated with their initial performance, it had no effect on their progress. This confirmed that DI can maximize learning outcomes for all students regardless of their socioeconomic background. It also depends on how DI is implemented, for example the effects of ability grouping may differ for subgroups of students (Coubergs et al., 2013 ). A recent review on DI concluded that studies of effectiveness of DI overall report small to medium-sized positive effects of DI on student achievement. However, the authors of this study plead for more empirical studies towards the effectiveness of DI on both academic achievement and affective students’ outcomes, such as attitudes and motivation (Smale-Jacobse et al., 2019 ).

4 Implementation of Differentiated Instruction

Differentiated instruction is often presented in a fragmented fashion in studies. For example, it can be defined as a specific set of strategies (Bade & Bult, 1981 ; Woolfolk, 2010 ) or studies with regard to the effectiveness of DI often focus on specific differentiated classroom actions, rather than on DI as a whole-classroom approach (Smale-Jacobse et al., 2019 ). Moreover, DI is not only in studies fragmented defined and investigated, DI is also perceived by teachers in a fragmented way (Gheyssens, 2020 ). For example, using mixed methods, this study explored to what degree differentiated practices are implemented by primary school teachers in Flanders (Gheyssens et al., 2020a ). Data were gathered by means of three different methods, which are compared: teachers’ self-reported questionnaires (N = 513), observed classroom practices and recall interviews (N = 14 teachers). The results reveal that there is not always congruence between the observed and self-reported practices. Moreover, the study seeks to understand what encourages or discourages teachers to implement DI practices. It turns out that concerns about the impact on students and school policy are referred to by teachers as impediments when it comes to adopting differentiated practices in classrooms. On teacher level, some teachers expressed a feeling of powerlessness towards their teaching and have doubts if their efforts are good enough. On school level, a development plan was often missing which gave teachers the feeling that they are standing alone (Gheyssens et al., 2020a ). Other studies confirm that when beliefs about teaching and learning are different among various actors involved in a school, this can limit DI implementation (Beecher & Sweeny, 2008 ). However, we know form the DI-Quest model how important a teachers’ mindset is when it comes to implementing DI. In this specific study teachers were asked about both hindrances and encouragements to implement DI. Teachers only responded with hindrances. In addition, flexible grouping, which in theory is an ideal teaching format when it comes to differentiation, occurs often randomly in the classroom without the intention to differentiate. The researchers of this study concluded that teachers do not succeed in implementing DI to the fullest because their mindset about DI is not as advanced as their abilities to implement differentiated practices. These practices, such as flexible grouping for example, are often part of the curriculum. Moreover, also in teacher education programmes pre-service teachers are trained to use differentiated strategies. However, teacher education programmes approach DI mostly again as a set of teaching practices. Teaching a mindset is much more difficult and complicated. This focus on DI as only a practice and as a pedagogical model, like the DI-Quest model demonstrates, leads to partial implementation of DI. DI is then perceived as something teachers can do “sometimes” in their classrooms, rather than a pedagogical model that is embedded in the daily teaching and learning process (Gheyssens et al., 2020a ).

In other words, one aspect of DI is often implemented, one specific teaching format is applied, or one strategy is adopted to deal with one specific difference between learning. As a consequence, some aspects will be improved or some students will benefit from this approach, but the desired positive effects on the total learning process of all the students that theories about DI promise, will remain unforthcoming. Below some recommendations are listed to implement DI more as a pedagogical model and less fragmented.

4.1 Importance of the Teachers’ Philosophy

Review studies which investigated the effectiveness and implementation of specific operationalizations of DI (for example grouping) report small to medium effects on student achievement (Coubergs et al., 2013 ; Smale-Jacobse et al., 2019 ). Although theories recommend approaching DI as a holistic concept, the effectiveness of such a holistic approach on student learning has, to our knowledge, not yet been investigated. We emphasize the importance of presenting and perceiving DI as a pedagogical model that is regarded as a philosophy of teaching and a collection of teaching practices (Tomlinson, 2017 ). Thus, DI is considered a pedagogical model that is influenced by teachers’ mindset and one which encourages teachers to be proactive, involves modifying curricula, teaching methods, resources, learning activities and student products in anticipation of, and response to, student differences in readiness, interests and learning profiles, in order to maximize learning opportunities for every student in the classroom (Coubergs et al., 2017 ; Tomlinson, 2017 ). In this regard we would also like to emphasize that these modifications do not necessary involve new teaching strategies and extra workload for teachers, but require that teachers shift their mindset and start acting more pro-actively, planned better and be more positive. In a study that investigated the effectiveness of a professional development programme about inclusive education on teachers’ implementation of differentiated instruction, teachers stated that after participating in the programme they did not necessarily adopt more differentiated practices, but they did the ones they used more thoroughly (Gheyssens et al., 2020b ). As demonstrated in the DI-Quest model, in order to implement DI as a pedagogical model, it is essential to start with the teachers’ philosophy. However, changing a philosophy does not come about overnight, but rather demands time and patience (Gheyssens, 2020 ).

4.2 Importance and Complexity of Professional Development

When DI becomes a pedagogical model that consists of both philosophy and practice components, and furthermore demands that teachers have a positive mindset towards DI in order to implement DI effectively, professional development for some teachers is necessary to strengthen their competences and to support them in embedding DI in their classrooms. Depending on the current mindset of the teacher, some will need more support, while for other teachers differentiating comes naturally. However, if we want teachers to implement DI as a pedagogical model and not just as fragmented practices, teachers need to be prepared and supported. Professional development is essential for teachers to respond adequately to the changing needs of students during their careers (Keay & Lloyd, 2011 ; EADSNE, 2012 ). However, professional development is also complex. The final study in the dissertation of Gheyssens ( 2020 ) investigated the effectiveness of a professional development programme (PDP) aimed at strengthening the DI competences of teachers. A quasi-experimental design consisting of a pre-test, post-test, and control group was used to study the impact of the programme on teachers’ self-reported differentiated philosophies and practices. Questionnaires were collected from the experimental group (n = 284) and control group (n = 80) and pre- and post-test results were compared using a repeated measures ANOVA. Additionally, interviews with a purposive sample of teachers (n = 8) were conducted to explore teachers’ experiences of the PDP. The results show that the PDP was not effective in changing teachers’ DI competences. Multiple explanations are presented for the lack of improvement such as treatment fidelity, the limitations of instruments, and the necessary time investment (Gheyssens et al., 2020b ).

We found similar information in other studies. For example Brighton et al. ( 2005 ) stated that the biggest challenge for most teachers is that DI questions their previous beliefs. This ties in with our emphasis on teachers’ mindset. To participate in professional development, teachers need to have/keep an open mind in order to respond to new forms of diversity and new opportunities for collaborating with colleagues. Although continued professional development is necessary and important for teachers, it is a complex process. We refer to the work of Merchie et al. ( 2016 ) who identified nine characteristics of effective professional development, with one of them being that the supervisor is of high quality and is competent when it comes to giving and receiving constructive feedback and imparting other coaching skills (Merchie et al., 2016 ). Literature states that professional development is only successful if teachers are active participants, if they have a voice in what and how they learn things, and if the PDP is tailored to the specific context (Merchie et al., 2016 ). However, PDP often works towards a specific goal which is not always very flexible. A suitable coach is able to find a balance between these two extremes. Or, specifically within inquiry-based learning as an example, the coach needs to find the fragile balance between telling the teachers what to do, and letting them find their own answers. Finding such a balance and guiding teachers towards looking for and finding the answers they need is important if we wish to establish the desired improvement we want to see in teachers’ professional development. In this regard, Willegems et al. ( 2016 ) plead for the role of a broker as a bridge-maker in professional development trajectories, in addition to the role of coach (Willegems et al., 2016 ).

4.3 Importance of Collaboration

In addition, collaboration is indeed essential for effective professionalisation (Merchie et al., 2016 ) and beneficial for DI implementation (De Neve et al., 2015 ; Latz & Adams, 2011 ). In a professional development study where inquiry-based learning was applied to teams of teachers at schools, teachers reported positive experiences in discussing their individual learning activities, and during the programme became aware of the need to work together on the collective development of knowledge in the school. They all agreed that to implement DI they needed to collaborate more. A common school vision and policy is necessary for the implementation of specific differentiated measures, as these currently differ between teachers and grades, and can be confusing for students. This is consistent with previous research that states that collaboration is crucial for creating inclusive classrooms (Hunt et al., 2002 ; Mortier et al., 2010 ; EADSNE, 2012 ; Claasen et al., 2009 ; Mitchel, 2014 ). A first step in this process is realising that collaboration is beneficial for both teachers and students (EADSNE, 2012 ).

5 Conclusion

The chapter summarizes a doctoral dissertation that started with the assumption from theory that differentiated instruction can be adopted to create more inclusive classrooms. Theories describe DI as both a teaching practice and a philosophy, but the concept is rarely measured as such. Empirical evidence about the effectiveness and operationalisation of differentiating is limited. The general aim of this research was to gain a more in-depth understanding of the concept of DI. This main aim was subdivided into two objectives. The first objective focused on how DI is perceived by teachers and resulted in the DI-Quest model. The second objective focused on how DI is implemented. Four empirical studies were conducted to address these objectives. Two different samples spread over three years were adopted (1302 teachers in study 1 and 1522 teachers in studies 2, 3 and 4) and mixed methods were applied to investigate these research goals. In this chapter the results of these studies were put next to other studies and literature about differentiation. The conclusions highlight the importance of teachers’ philosophy when it comes to implementing DI, the importance of perceiving and implementing DI as a pedagogical model and the importance and complexity of professional development with regard to DI. Overall, the authors of this dissertation conclude that DI can be as promising as theories say when it comes to creating inclusive classrooms, but at the same time their research illustrated that the reality of DI in classrooms, is far more complex than the theories suggest.

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Gheyssens, E., Griful-Freixenet, J., Struyven, K. (2023). Differentiated Instruction as an Approach to Establish Effective Teaching in Inclusive Classrooms. In: Maulana, R., Helms-Lorenz, M., Klassen, R.M. (eds) Effective Teaching Around the World . Springer, Cham. https://doi.org/10.1007/978-3-031-31678-4_30

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Just as everyone has a unique fingerprint, every student has an individual learning style. Chances are, not all of your students grasp a subject in the same way or share the same level of ability. So how can you better deliver your lessons to reach everyone in class? Consider differentiated instruction—a method you may have heard about but haven’t explored, which is why you’re here. In this article, learn exactly what it means, how it works, and the pros and cons.

Definition of differentiated instruction

Carol Ann Tomlinson is a leader in the area of differentiated learning and professor of educational leadership, foundations, and policy at the University of Virginia. Tomlinson describes differentiated instruction as factoring students’ individual learning styles and levels of readiness first before designing a lesson plan. Research on the effectiveness of differentiation shows this method benefits a wide range of students, from those with learning disabilities to those who are considered high ability.

Differentiating instruction may mean teaching the same material to all students using a variety of instructional strategies, or it may require the teacher to deliver lessons at varying levels of difficulty based on the ability of each student.

Teachers who practice differentiation in the classroom may:

• Design lessons based on students’ learning styles.
• Group students by shared interest, topic, or ability for assignments.
• Assess students’ learning using formative assessment.
• Manage the classroom to create a safe and supportive environment.
• Continually assess and adjust lesson content to meet students’ needs.

History of differentiated instruction

The roots of differentiated instruction go all the way back to the days of the one-room schoolhouse, where one teacher had students of all ages in one classroom. As the educational system transitioned to grading schools, it was assumed that children of the same age learned similarly. However in 1912, achievement tests were introduced, and the scores revealed the gaps in student’s abilities within grade levels.

In 1975, Congress passed the Individuals with Disabilities Education Act (IDEA), ensuring that children with disabilities had equal access to public education. To reach this student population, many educators used differentiated instruction strategies. Then came the passage of No Child Left Behind in 2000, which further encouraged differentiated and skill-based instruction—and that’s because it works. Research by educator Leslie Owen Wilson supports differentiating instruction within the classroom, finding that lecture is the least effective instructional strategy, with only 5 to 10 percent retention after 24 hours. Engaging in a discussion, practicing after exposure to content, and teaching others are much more effective ways to ensure learning retention.

Four ways to differentiate instruction

According to Tomlinson, teachers can differentiate instruction through four ways: 1) content, 2) process, 3) product, and 4) learning environment.

As you already know, fundamental lesson content should cover the standards of learning set by the school district or state educational standards. But some students in your class may be completely unfamiliar with the concepts in a lesson, some students may have partial mastery, and some students may already be familiar with the content before the lesson begins.

What you could do is differentiate the content by designing activities for groups of students that cover various levels of  Bloom’s Taxonomy (a classification of levels of intellectual behavior going from lower-order thinking skills to higher-order thinking skills). The six levels are: remembering, understanding, applying, analyzing, evaluating, and creating.

Students who are unfamiliar with a lesson could be required to complete tasks on the lower levels: remembering and understanding. Students with some mastery could be asked to apply and analyze the content, and students who have high levels of mastery could be asked to complete tasks in the areas of evaluating and creating.

Examples of differentiating activities:

• Match vocabulary words to definitions.
• Read a passage of text and answer related questions.
• Think of a situation that happened to a character in the story and a different outcome.
• Differentiate fact from opinion in the story.
• Identify an author’s position and provide evidence to support this viewpoint.
• Create a PowerPoint presentation summarizing the lesson.

Each student has a preferred learning style, and successful differentiation includes delivering the material to each style: visual, auditory and kinesthetic, and through words. This process-related method also addresses the fact that not all students require the same amount of support from the teacher, and students could choose to work in pairs, small groups, or individually. And while some students may benefit from one-on-one interaction with you or the classroom aide, others may be able to progress by themselves. Teachers can enhance student learning by offering support based on individual needs.

Examples of differentiating the process:

• Provide textbooks for visual and word learners.
• Allow auditory learners to listen to audio books.
• Give kinesthetic learners the opportunity to complete an interactive assignment online.

The product is what the student creates at the end of the lesson to demonstrate the mastery of the content. This can be in the form of tests, projects, reports, or other activities. You could assign students to complete activities that show mastery of an educational concept in a way the student prefers, based on learning style.

Examples of differentiating the end product:

• Read and write learners write a book report.
• Visual learners create a graphic organizer of the story.
• Auditory learners give an oral report.
• Kinesthetic learners build a diorama illustrating the story.

4. Learning environment

The conditions for optimal learning include both physical and psychological elements. A flexible classroom layout is key, incorporating various types of furniture and arrangements to support both individual and group work. Psychologically speaking, teachers should use classroom management techniques that support a safe and supportive learning environment.

Examples of differentiating the environment:

• Break some students into reading groups to discuss the assignment.
• Allow students to read individually if preferred.
• Create quiet spaces where there are no distractions.

Pros and cons of differentiated instruction

The benefits of differentiation in the classroom are often accompanied by the drawback of an ever-increasing workload. Here are a few factors to keep in mind:

• Research shows differentiated instruction is effective for high-ability students as well as students with mild to severe disabilities.
• When students are given more options on how they can learn material, they take on more responsibility for their own learning.
• Students appear to be more engaged in learning, and there are reportedly fewer discipline problems in classrooms where teachers provide differentiated lessons.
• Differentiated instruction requires more work during lesson planning, and many teachers struggle to find the extra time in their schedule.
• The learning curve can be steep and some schools lack professional development resources.
• Critics argue there isn’t enough research to support the benefits of differentiated instruction outweighing the added prep time.

Differentiated instruction strategies

What differentiated instructional strategies can you use in your classroom? There are a set of methods that can be tailored and used across the different subjects. According to Kathy Perez (2019) and the Access Center those strategies are tiered assignments, choice boards, compacting, interest centers/groups, flexible grouping, and learning contracts. Tiered assignments are designed to teach the same skill but have the students create a different product to display their knowledge based on their comprehension skills. Choice boards allow students to choose what activity they would like to work on for a skill that the teacher chooses. On the board are usually options for the different learning styles; kinesthetic, visual, auditory, and tactile. Compacting allows the teacher to help students reach the next level in their learning when they have already mastered what is being taught to the class. To compact the teacher assesses the student’s level of knowledge, creates a plan for what they need to learn, excuses them from studying what they already know, and creates free time for them to practice an accelerated skill.

Interest centers or groups are a way to provide autonomy in student learning. Flexible grouping allows the groups to be more fluid based on the activity or topic.  Finally, learning contracts are made between a student and teacher, laying out the teacher’s expectations for the necessary skills to be demonstrated and the assignments required components with the student putting down the methods they would like to use to complete the assignment. These contracts can allow students to use their preferred learning style, work at an ideal pace and encourages independence and planning skills. The following are strategies for some of the core subject based on these methods.

Differentiated instruction strategies for math

• Provide students with a choice board. They could have the options to learn about probability by playing a game with a peer, watching a video, reading the textbook, or working out problems on a worksheet.
• Teach mini lessons to individuals or groups of students who didn’t grasp the concept you were teaching during the large group lesson. This also lends time for compacting activities for those who have mastered the subject.
• Use manipulatives, especially with students that have more difficulty grasping a concept.
• Have students that have already mastered the subject matter create notes for students that are still learning.
• For students that have mastered the lesson being taught, require them to give in-depth, step-by-step explanation of their solution process, while not being rigid about the process with students who are still learning the basics of a concept if they arrive at the correct answer.

Differentiated instruction strategies for science

• Emma McCrea (2019) suggests setting up “Help Stations,” where peers assist each other. Those that have more knowledge of the subject will be able to teach those that are struggling as an extension activity and those that are struggling will receive.
• Set up a “question and answer” session during which learners can ask the teacher or their peers questions, in order to fill in knowledge gaps before attempting the experiment.
• Create a visual word wall. Use pictures and corresponding labels to help students remember terms.
• Set up interest centers. When learning about dinosaurs you might have an “excavation” center, a reading center, a dinosaur art project that focuses on their anatomy, and a video center.
• Provide content learning in various formats such as showing a video about dinosaurs, handing out a worksheet with pictures of dinosaurs and labels, and providing a fill-in-the-blank work sheet with interesting dinosaur facts.

Differentiated instruction strategies for ELL

• ASCD (2012) writes that all teachers need to become language teachers so that the content they are teaching the classroom can be conveyed to the students whose first language is not English.
• Start by providing the information in the language that the student speaks then pairing it with a limited amount of the corresponding vocabulary in English.
•  Although ELL need a limited amount of new vocabulary to memorize, they need to be exposed to as much of the English language as possible. This means that when teaching, the teacher needs to focus on verbs and adjectives related to the topic as well.
• Group work is important. This way they are exposed to more of the language. They should, however, be grouped with other ELL if possible as well as given tasks within the group that are within their reach such as drawing or researching.

Differentiated instruction strategies for reading

• Tiered assignments can be used in reading to allow the students to show what they have learned at a level that suites them. One student might create a visual story board while another student might write a book report. 
• Reading groups can pick a book based on interest or be assigned based on reading level
• Erin Lynch (2020) suggest that teachers scaffold instruction by giving clear explicit explanations with visuals. Verbally and visually explain the topic. Use anchor charts, drawings, diagrams, and reference guides to foster a clearer understanding. If applicable, provide a video clip for students to watch.
• Utilize flexible grouping. Students might be in one group for phonics based on their assessed level but choose to be in another group for reading because they are more interested in that book.

Differentiated instruction strategies for writing

• Hold writing conferences with your students either individually or in small groups. Talk with them throughout the writing process starting with their topic and moving through grammar, composition, and editing.
• Allow students to choose their writing topics. When the topic is of interest, they will likely put more effort into the assignment and therefore learn more.
• Keep track of and assess student’s writing progress continually throughout the year. You can do this using a journal or a checklist. This will allow you to give individualized instruction.
• Hand out graphic organizers to help students outline their writing. Try fill-in-the-blank notes that guide the students through each step of the writing process for those who need additional assistance.
• For primary grades give out lined paper instead of a journal. You can also give out differing amounts of lines based on ability level. For those who are excelling at writing give them more lines or pages to encourage them to write more. For those that are still in the beginning stages of writing, give them less lines so that they do not feel overwhelmed.

Differentiated instruction strategies for special education

• Use a multi-sensory approach. Get all five senses involved in your lessons, including taste and smell!
• Use flexible grouping to create partnerships and teach students how to work collaboratively on tasks. Create partnerships where the students are of equal ability, partnerships where once the student will be challenged by their partner and another time they will be pushing and challenging their partner.
• Assistive technology is often an important component of differential instruction in special education. Provide the students that need them with screen readers, personal tablets for communication, and voice recognition software.
• The article Differentiation & LR Information for SAS Teachers suggests teachers be flexible when giving assessments “Posters, models, performances, and drawings can show what they have learned in a way that reflects their personal strengths”. You can test for knowledge using rubrics instead of multiple-choice questions, or even build a portfolio of student work. You could also have them answer questions orally.
• Utilize explicit modeling. Whether its notetaking, problem solving in math, or making a sandwich in home living, special needs students often require a step-by-step guide to make connections.

References and resources

• https://www.thoughtco.com/differentiation-instruction-in-special-education-3111026
• https://sites.google.com/site/lrtsas/differentiation/differentiation-techniques-for-special-education
• https://www.solutiontree.com/blog/differentiated-reading-instruction/
• https://www.readingrockets.org/article/differentiated-instruction-reading
• https://www.sadlier.com/school/ela-blog/13-ideas-for-differentiated-reading-instruction-in-the-elementary-classroom
• https://inservice.ascd.org/seven-strategies-for-differentiating-instruction-for-english-learners/
• https://www.cambridge.org/us/education/blog/2019/11/13/three-approaches-differentiation-primary-science/
• https://www.brevardschools.org/site/handlers/filedownload.ashx?moduleinstanceid=6174&dataid=8255&FileName=Differentiated_Instruction_in_Secondary_Mathematics.pdf

Books & Videos about differentiated instruction by Carol Ann Tomlinson and others

• The Differentiated Classroom: Responding to the Needs of All Learners, 2nd Edition
• Leading and Managing a Differentiated Classroom – Carol Ann Tomlinson and Marcia B. Imbeau
• The Differentiated School: Making Revolutionary Changes in Teaching and Learning – Carol Ann Tomlinson, Kay Brimijoin, and Lane Narvaez
• Integrating Differentiated Instruction and Understanding by Design: Connecting Content and Kids – Carol Ann Tomlinson and Jay McTighe
• Differentiation in Practice Grades K-5: A Resource Guide for Differentiating Curriculum – Carol Ann Tomlinson and Caroline Cunningham Eidson
• Differentiation in Practice Grades 5–9: A Resource Guide for Differentiating Curriculum – Carol Ann Tomlinson and Caroline Cunningham Eidson
• Differentiation in Practice Grades 9–12: A Resource Guide for Differentiating Curriculum – Carol Ann Tomlinson and Cindy A. Strickland
• Fulfilling the Promise of the Differentiated Classroom: Strategies and Tools for Responsive Teaching – Carol Ann Tomlinson
• Leadership for Differentiating Schools and Classrooms – Carol Ann Tomlinson and Susan Demirsky Allan
• How to Differentiate Instruction in Academically Diverse Classrooms, 3rd Edition by Carol Ann Tomlinson
• Assessment and Student Success in a Differentiated Classroom by Carol Ann Tomlinson and Tonya R. Moon
• How To Differentiate Instruction In Mixed Ability Classrooms 2nd Edition – Carol Ann Tomlinson
• How to Differentiate Instruction in Academically Diverse Classrooms 3rd Edition by Carol Ann Tomlinson 
• Assessment and Student Success in a Differentiated Classroom Paperback – Carol Ann Tomlinson, Tonya R. Moon
• Leading and Managing a Differentiated Classroom (Professional Development) 1st Edition – Carol Ann Tomlinson, Marcia B. Imbeau
• The Differentiated School: Making Revolutionary Changes in Teaching and Learning 1st Edition by Carol Ann Tomlinson, Kay Brimijoin, Lane Narvaez
• Differentiation and the Brain: How Neuroscience Supports the Learner-Friendly Classroom  – David A. Sousa, Carol Ann Tomlinson
• Leading for Differentiation: Growing Teachers Who Grow Kids – Carol Ann Tomlinson, Michael Murphy
• An Educator’s Guide to Differentiating Instruction. 10th Edition – Carol Ann Tomlinson, James M. Cooper
• A Differentiated Approach to the Common Core: How do I help a broad range of learners succeed with a challenging curriculum? – Carol Ann Tomlinson, Marcia B. Imbeau
• Managing a Differentiated Classroom: A Practical Guide – Carol Tomlinson, Marcia Imbeau
• Differentiating Instruction for Mixed-Ability Classrooms: An ASCD Professional Inquiry Kit Pck Edition – Carol Ann Tomlinson
• Using Differentiated Classroom Assessment to Enhance Student Learning (Student Assessment for Educators) 1st Edition – Tonya R. Moon, Catherine M. Brighton, Carol A. Tomlinson
• The Differentiated Classroom: Responding to the Needs of All Learners 1st Edition – Carol Ann Tomlinson

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Categorized as: Tips for Teachers and Classroom Resources

Tagged as: Curriculum and Instruction ,  Diversity ,  Engaging Activities ,  New Teacher ,  Pros and Cons

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Initial Thoughts

Perspectives & resources, what is differentiated instruction, page 1: defining differentiated instruction.

• Page 2: General Principles

How do teachers differentiate instruction?

• Page 3: Know Your Students
• Page 4: Differentiate Instructional Elements
• Page 5: Differentiate Content
• Page 6: Differentiate Process
• Page 7: Differentiate Product
• Page 8: Evaluate and Grade Student Performance

How do teachers prepare their students and their classrooms for differentiated instruction?

• Page 9: Communicate with Students and Parents
• Page 10: Organize the Classroom
• Page 11: Employ Effective Behavior Management

What does differentiated instruction look like in the classroom?

• Page 12: Classroom Implementation
• Page 13: References & Additional Resources
• Page 14: Credits

• Employing effective classroom management procedures
• Grouping students for instruction (especially students with significant learning problems)
• Assessing readiness
• Teaching to the student’s zone of proximal development

Although differentiated instruction as a whole is yet to be validated by scientific research, a growing body of evidence shows that the approach has positive effects on student learning.

Research Shows

• Strategies used to differentiate instructional and assessment tasks for English language learners, gifted students, and struggling students were also effective for other students in the classroom. McQuarrie, McRae, & Stack-Cutler (2008)
• Students with learning disabilities received more benefits from differentiated instruction than did their grade-level peers. McQuarrie, McRae, & Stack-Cutler (2008)
• In one study, the reading skills of elementary- and middle-school students who participated in a reading program that incorporated differentiated instruction improved compared to the reading skills of students who did not receive the program. Baumgartner, Lipowski, & Rush (2003)

In addition to using the kinds of evidence-based strategies listed above, teachers who differentiate instruction often:

• Use a variety of instructional approaches
• Alter assignments to meet the needs of the students
• Assess students on an ongoing basis to determine their readiness levels
• Use assessment results to adjust instruction as needed
• Provide a variety of options for how students can learn and demonstrate their knowledge
• Strive to make lessons engaging and meaningful
• Employ different grouping formats for instruction (e.g., whole-class, small groups, independent instruction) and use flexible grouping

flexible grouping

A fluid or dynamic method of grouping students. Rather than being set, group membership changes to meet the different needs of the students.

Click here to see the attributes of a traditional classroom contrasted with those of a differentiated classroom.

Teachers often have a number of misperceptions about differentiated instruction. Carol Ann Tomlinson addresses two of these (time: 1:33).

Carol Ann Tomlinson, EdD Professor of Educational Leadership, Foundations, and Policy The University of Virginia Charlottesville, VA

View Transcript

Transcript: Carol Ann Tomlinson, EdD

One is it takes too much time to plan, but the other is it takes too much time in a classroom to differentiate. The planning piece, of course, is a matter of saying differentiation doesn’t say spend an hour planning tonight like you always did and then add differentiation to it. What it would say is, if you have an hour to plan, think about how you can do that in a way that’s going to work for kids. And, again, if you go slowly it doesn’t need to eat your life in any way at all. But the issue in terms of it takes too much time in class is an intriguing one to me because it turns out that differentiation is not what takes extra time in class. What takes extra time in class is giving kids chances to work with ideas and manipulate ideas and come to own the information. It doesn’t take as long just to tell kids things or just to cover standards, but we also don’t have any evidence that students come away with understanding or the capacity to use what they’ve learned to transfer knowledge. When you take time to let kids think and make meaning of stuff, that slows us down some in terms of coverage. If you let kids make meaning of stuff in two different ways, or if you let kids make meaning of stuff working alone or working with somebody, or if you let kids making make meaning working independently or working with a teacher, that doesn’t take any longer. Where it got to take longer was in the making meaning part.

For Your Information

What is the difference between differentiated instruction and Universal Design for Learning (UDL)?

Both attempt to maximize the learning of all students by offering multiple ways to learn content or skills and to demonstrate that knowledge. Additionally, both emphasize learning environments that are engaging and utilize ongoing assessments to make adjustments to meet the instructional needs of students. So what is the difference? The difference is in when and how changes are made to address the needs of students.

CAST, Inc. (2007)

How does response to intervention (RTI) fit in with differentiated instruction?

response to intervention (RTI)

A multi-tiered method for delivering instruction to learners through increasingly intensive and individualized interventions.

Both are instructional frameworks. Whereas the purpose of differentiated instruction is to address the needs of all students, the purpose of RTI is to identify and address the needs of struggling students. Though the two frameworks overlap—differentiated instruction is often provided in an RTI classroom—under RTI, students may receive more intensive levels of instruction than they would normally receive in a differentiated classroom.

How do adaptations (i.e., accommodations and modifications) fit with differentiated instruction?

Differentiated instruction might not be enough for some students to succeed. Those with disabilities might need additional supports—accommodations or modifications—to learn the concepts and skills being taught. These supports are identified in the student’s individual education program (IEP) .

individualized education program (IEP)

A written plan used to delineate an individual student’s current level of development and his or her learning goals, as well as to specify any accommodations, modifications, and related services that a student might need to attend school and maximize his or her learning.

7 Research Based Facts about Differentiated Instruction

• Aug 7, 2017
• Diversity & Equity , Tips, Tools, & Tech

August Theme of the Month: Differentiated Instruction

• Contemporary student populations are becoming increasingly academically diverse (Gable et al., 2000; Guild, 2001; Hall, 2002; Hess, 1999; McAdamis, 2001; McCoy and Ketterlin-Geller, 2004; Sizer, 1999; Tomlinson, 2004a; Tomlinson, Moon, and Callahan, 1998).
• The inclusion of students with disabilities, students with language backgrounds other than English, students with imposing emotional difficulties and a noteworthy number of gifted students, reflect this growing diversity (Mulroy and Eddinger, 2003; Tomlinson, 2001b, 2004a).
• Learning within the inclusive classroom is further influenced by a student’s gender, culture, experiences, aptitudes, interests and particular teaching approaches (Guild, 2001; Stronge, 2004; Tomlinson, 2002, 2004b).
• Tomlinson (2005), a leading expert in this field, defines differentiated instruction as a philosophy of teaching that is based on the premise that students learn best when their teachers accommodate the differences in their readiness levels, interests and learning profiles. A chief objective of differentiated instruction is to take full advantage of every student’s ability to learn (Tomlinson, 2001a, 2001c, 2004c, 2005).
• Tomlinson (2000) maintains that differentiation is not just an instructional strategy, nor is it a recipe for teaching, rather it is an innovative way of thinking about teaching and learning.
• Contemporary classrooms should accept and build on the basis that learners are all essentially different (Brighton, 2002; Fischer and Rose, 2001; Griggs, 1991; Guild, 2001; Tomlinson, 2002).
• Research supports the view that curricula should be designed to engage students, it should have the ability to connect to their lives and positively influence their levels of motivation (Coleman, 2001; Guild, 2001; Hall, 2002; Sizer, 1999; Strong et al., 2001).

About the Author

Senior Director of Family and Clinical Services for RethinkCare, Former Director of Professional Services for RethinkEd

Jennifer is an educator with a masters in Special Education and she is a Board Certified Behavior Analyst . She has worked in a variety of settings such as public schools and special day schools, as well as with healthcare service providers implementing home-based and community services. Jennifer has a passion for education and advocacy, and has dedicated her career to ensuring that all individuals are fully-included in society and receiving comprehensive, effective, research-based services.

She is responsible for strategic direction, leadership and management of Family and Clinical Services for RethinkCare, providing leadership and oversight to the development, implementation, and coordination of service and resource development to maximize impact on core outcomes for parents/caregivers.

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20 Differentiated Instruction Strategies and Examples [+ Downloadable List]

Written by Marcus Guido

Reviewed by Allison Sinclair, M.T.

Engage and motivate your students with our adaptive, game-based learning platform!

• Game-Based Learning
• Teaching Strategies

1. Create Learning Stations

2. use task cards, 3. interview students, 4. target different senses within lessons, 5. share your own strengths and weaknesses, 6. use the think-pair-share strategy, 7. make time for journaling, 8. implement reflection and goal-setting exercises, 9. run literature circles, 10. offer different types of free study time, 11. group students with similar learning styles, 12. give different sets of reading comprehension activities, 13. assign open-ended projects, 14. encourage students to propose ideas for their projects, 15. analyze your differentiated instruction strategy on a regular basis, 16. “teach up”, 17. use math edtech that adjusts itself to each student, 18. relate math to personal interests and everyday examples, 19. play a math-focused version of tic-tac-toe, 20. create learning stations, without mandatory rotations.

As students with diverse learning styles fill the classroom, many teachers don’t always have the time, or spend additional hours to plan lessons that use differentiated instruction (DI) to suit students’ unique aptitudes.

Educator Carol Ann Tomlinson puts it beautifully in her book How to Differentiate Instruction in Academically Diverse Classrooms :

Kids of the same age aren't all alike when it comes to learning, any more than they are alike in terms of size, hobbies, personality, or likes and dislikes. Kids do have many things in common because they are human beings and because they are all children, but they also have important differences. What we share in common makes us human. How we differ makes us individuals. In a classroom with little or no differentiated instruction, only student similarities seem to take center stage. In a differentiated classroom, commonalities are acknowledged and built upon, and student differences become important elements in teaching and learning as well.

This can involve adjusting:

• Content — The media and methods teachers use to impart and instruct skills, ideas and information
• Processes — The exercises and practices students perform to better understand content
• Products — The materials, such as tests and projects, students complete to demonstrate understanding

To help create lessons that engage and resonate with a diverse classroom, below are 20 differentiated instruction strategies and examples. Available in a condensed and printable list for your desk, you can use 16 in most classes and the last four for math lessons.

Try the ones that best apply to you, depending on factors such as student age.

Provide different types of content by setting up learning stations — divided sections of your classroom through which groups of students rotate. You can facilitate this with a flexible seating plan .

Each station should use a unique method of teaching a skill or concept related to your lesson.

To compliment your math lessons, for example, many teachers use Prodigy to simplify differentiation .  You’ll deliver specific in-game problems to each student — or distinct student groups — in three quick steps!

Students can rotate between stations that involve:

• Watching a video
• Creating artwork
• Reading an article
• Completing puzzles
• Listening to you teach

To help students process the content after they've been through the stations, you can hold a class discussion or assign questions to answer.

Like learning stations, task cards allow you to give students a range of content. Answering task cards can also be a small-group activity , adding variety to classes that normally focus on solo or large-group learning.

First, make or identify tasks and questions that you’d typically find on worksheets or in textbooks.

Second, print and laminate cards that each contain a single task or question. Or, use Teachers Pay Teachers to buy pre-made cards . (Check out Prodigy Education's Teachers Pay Teachers page for free resources!)

Finally, set up stations around your classroom and pair students together to rotate through them.

You can individualize instruction by monitoring the pairs, addressing knowledge gaps when needed.

Asking questions about learning and studying styles can help you pinpoint the kinds of content that will meet your class’s needs.

While running learning stations or a large-group activity , pull each student aside for a few minutes. Ask about:

• Their favourite types of lessons
• Their favourite in-class activities
• Which projects they’re most proud of
• Which kinds of exercises help them remember key lesson points

Track your results to identify themes and students with uncommon preferences, helping you determine which methods of instruction suit their abilities.

A lesson should resonate with more students if it targets visual, tactile, auditory and kinesthetic senses, instead of only one.

When applicable, appeal to a range of learning styles by:

• Playing videos
• Using infographics
• Providing audiobooks
• Getting students to act out a scene
• Incorporating charts and illustrations within texts
• Giving both spoken and written directions to tasks
• Using relevant physical objects, such as money when teaching math skills
• Allotting time for students to create artistic reflections and interpretations of lessons

Not only will these tactics help more students grasp the core concepts of lessons, but make class more engaging.

Prodigy Math Game , for example, is an engaging way to gamify math class in a way that worksheets simply cannot. 👇

To familiarize students with the idea of differentiated learning, you may find it beneficial to explain that not everyone builds skills and processes information the same way.

Talking about your own strengths and weaknesses is one way of doing this.

Explain -- on a personal level — how you study and review lessons. Share tactics that do and don’t work for you, encouraging students to try them.

Not only should this help them understand that people naturally learn differently, but give them insight into improving how they process information.

The think-pair-share strategy exposes students to three lesson-processing experiences within one activity. It’s also easy to monitor and support students as they complete each step.

As the strategy’s name implies, start by asking students to individually think about a given topic or answer a specific question.

Next, pair students together to discuss their results and findings.

Finally, have each pair share their ideas with the rest of the class, and open the floor for further discussion.

Because the differentiated instruction strategy allows students to process your lesson content individually, in a small group and in a large group, it caters to your classroom’s range of learning and personality types.

A journal can be a tool for students to reflect on the lessons you’ve taught and activities you’ve run, helping them process new information .

When possible at the end of class, give students a chance to make a journal entry by:

• Summarizing key points they’ve learned
• Attempting to answer or make sense of lingering questions
• Explaining how they can use the lessons in real-life scenarios
• Illustrating new concepts, which can be especially helpful for data-focused math lessons

As they continue to make entries, they should figure out which ones effectively allow them to process fresh content.

But if you're struggling to see the value of journaling in a subject like math, for example, you can make time specifically for math journaling. While you connect journaling to your own math objectives, students can make cross-curricular connections.

If you want to learn more, check out K-5 Math Teaching Resources for a detailed overview . Angela Watson at The Cornerstone for Teachers also has great math journal resources you can use in your own class!

An extension of journaling, have students reflect on important lessons and set goals for further learning at pre-determined points of the year.

During these points, ask students to write about their favourite topics, as well as the most interesting concepts and information they’ve learned.

They should also identify skills to improve and topics to explore.

Based on the results, you can target lessons to help meet these goals . For example, if the bulk of students discuss a certain aspect of the science curriculum, you can design more activities around it.

Organizing students into literature circles not only encourages students to shape and inform each other’s understanding of readings, but helps auditory and participatory learners retain more information.

This also gives you an opportunity to listen to each circle’s discussion, asking questions and filling in gaps in understanding.

As a bonus, some students may develop leadership skills by running the discussion.

This activity makes written content — which, at times, may only be accessible to individual learners with strong reading retention -- easier to process for more students.

Free study time will generally benefit students who prefer to learn individually, but can be slightly altered to also help their classmates process your lessons.

This can be done by dividing your class into clearly-sectioned solo and team activities.

Consider the following free study exercises to also meet the preferences of visual, auditory and kinesthetic learners:

• Provide audiobooks, which play material relevant to your lessons
• Create a station for challenging group games that teach skills involved in the curriculum
• Maintain a designated quiet space for students to take notes and complete work
• Allow students to work in groups while taking notes and completing work, away from the quiet space

By running these sorts of activities, free study time will begin to benefit diverse learners — not just students who easily process information through quiet, individual work.

Heterogenous grouping is a common practice, but grouping students based on similar learning style can encourage collaboration through common work and thinking practices.

This is not to be confused with grouping students based on similar level of ability or understanding.

In some cases, doing so conflicts with the “Teach Up” principle , which is discussed below.

Rather, this tactic allows like-minded students to support each other’s learning while giving you to time to spend with each group. You can then offer the optimal kind of instruction to suit each group’s common needs and preferences.

Instead of focusing on written products, consider evaluating reading comprehension through questions and activities that test different aptitudes.

Although written answers may still appeal to many students, others may thrive and best challenge themselves during artistic or kinesthetic tasks.

For example, allow students to choose between some of the following activities before, during and after an important reading :

• Participating in more literature circles
• Delivering a presentation
• Writing a traditional report
• Creating visual art to illustrate key events
• Creating and performing a monologue as a main character or figure

Offering structured options can help students demonstrate their understanding of content as effectively as possible, giving you more insight into their abilities.

Similar to evaluating reading comprehension, give students a list of projects to find one that lets them effectively demonstrate their knowledge.

Include a clear rubric for each type of project, which clearly defines expectations. In fact, some teachers have their students co-create the rubric with them so they have autonomy in the work they'll be completing and being assessed on. Doing so will keep it challenging and help students meet specific criteria.

By both enticing and challenging students, this approach encourages them to:

• Work and learn at their own paces
• Engage actively with content they must understand
• Demonstrate their knowledge as effectively as possible

As well as benefiting students, this differentiated instruction strategy will clearly showcase distinct work and learning styles.

As well as offering set options, encourage students to take their projects from concept to completion by pitching you ideas.

A student must show how the product will meet academic standards, and be open to your revisions. If the pitch doesn’t meet your standards, tell the student to refine the idea until it does. If it doesn’t by a predetermined date, assign one of your set options.

You may be pleasantly surprised by some pitches.  

After all, students themselves are the focus of differentiated instruction — they likely have somewhat of a grasp on their learning styles and abilities.

Even if you’re confident in your overall approach, Carol Ann Tomlinson — one of the most reputable topic thought-leaders — recommends analyzing your differentiated instruction strategies:

Frequently reflect on the match between your classroom and the philosophy of teaching and learning you want to practice. Look for matches and mismatches, and use both to guide you.

Analyze your strategy by reflecting on:

• Content — Are you using diverse materials and teaching methods in class?
• Processes — Are you providing solo, small-group and large-group activities that best allow different learners to absorb your content?
• Products — Are you letting and helping students demonstrate their understanding of content in a variety of ways on tests, projects and assignments?

In doing so, you’ll refine your approach to appropriately accommodate the multiple intelligences of students . It's important to note, however, that recent studies have upended the theory of multiple intelligences. Regardless of where you stand on the multiple intelligences spectrum, the differentiated instruction strategy above remains valuable!

Teaching at a level that’s too easily accessible to each student can harm your differentiated instruction efforts, according to Tomlinson .

Instead, she recommends “teaching up.” This eliminates the pitfall of being stuck on low-level ideas, seldom reaching advanced concepts:

We do much better if we start with what we consider to be high-end curriculum and expectations -- and then differentiate to provide scaffolding, to lift the kids up .

The usual tendency is to start with what we perceive to be grade-level material and then dumb it down for some and raise it up for others. But we don’t usually raise it up very much from that starting point, and dumbing down just sets lower expectations for some kids.

Keeping this concept in mind should focus your differentiated teaching strategy, helping you bring each student up to “high-end curriculum and expectations.”

It has also grown particularly popular in the 2020s as educators have focused more on accelerated learning by "teaching up", as opposed to filling learning gaps.

As Elizabeth S. LeBlanc, Co-Founder of the Institute for Teaching and Learning, writes for EdSurge : "Accelerated learning approaches give a lower priority to repetition or 'skill-and-drill' uses of instructional technology. In other words, it’s not about memorizing everything you should have learned, it’s about moving you forward so you pick things up along the way. "

Differentiated Math Instruction Strategies and Examples

Some EdTech tools — such as certain educational math video games — can deliver differentiated content, while providing unique ways to process it.

For example, Prodigy adjusts questions to tackle student trouble spots and offers math problems that use words, charts and pictures, as well as numbers.

To the benefit of teachers, the game is free and curriculum-aligned for grades 1 to 8. You can adjust the focus of questions to supplement lessons and homework, running reports to examine each student’s progress.

Join over 90 million students and teachers using Prodigy's differentiating power today. 👇

Clearly linking math to personal interests and real-world examples can help some learners understand key concepts.

Working with 41 grade 7 students throughout an academic year, a 2015 study published by the Canadian Center of Science and Education used contextual learning strategies to teach integers and increase test scores by more than 44%.

Striving for similar benefits may be ambitious, but you can start by surveying students. Ask about their interests and how they use math outside of school.

Using your findings, you should find that contextualization helps some students grasp new or unfamiliar math concepts.

There are many math-related games and activities to find inspiration to implement this tactic.

Help students practice different math skills by playing a game that’s a take on tic-tac-toe.

Prepare by dividing a sheet into squares — three vertical by three horizontal. Don’t leave them blank. Instead, fill the boxes with questions that test different abilities.

For example:

• “Complete question X in page Y of your textbook”
• “Draw a picture to show how to add fraction X and fraction Y”
• “Describe a real-life situation in which you would use cross-multiplication, providing an example and solution”

You can hand out sheets to students for solo practice, or divide them into pairs and encourage friendly competition . The first one to link three Xs or Os — by correctly completing questions —  wins. 

So, depending on your preferences, this game will challenge diverse learners through either individual or small-group practice.

Provide differentiated math learning opportunities for your students by setting up unique learning stations across your classrooms, but forgoing mandatory rotations.

The idea comes from a grade 9 teacher in Ontario, who recommends creating three stations to solve similar mathematical problems using either:

• Data — Provide spreadsheets, requiring students to manipulate data through trial and error
• People — Group students into pairs or triads to tackle a range of problems together, supporting each other’s learning
• Things — Offer a hands-on option by giving each student objects to use when solving questions

Only allow students to switch stations if they feel the need. If they do, consult them about their decision. In each case, you and the student will likely learn more about his or her learning style.

Supplemented by your circulation between stations to address gaps in prior knowledge, this activity exposes students to exercises that appeal to diverse abilities.

Downloadable List of Differentiated Instruction Strategies and Examples

Click here to download and print a simplified list of the 20 differentiated instruction strategies and examples to keep at your desk.

Differentiated Instruction Strategies Infographic

Here’s an infographic with 16 ideas from this article, provided by  Educational Technology and Mobile Learning  — an online resource for teaching tools and ideas.

Wrapping Up

With help from the downloadable list, use these differentiated instruction strategies and examples to suit the diverse needs and learning styles of your students.

As well as adding variety to your content, these methods will help students process your lessons and demonstrate their understanding of them.

The strategies should prove to be increasingly useful as you identify the distinct learning styles in — and learn to manage — your classroom .

Interested in other teaching strategies to deploy in your classroom?

Differentiated instruction strategies overlap in important ways with a number of other pedagogical approaches. Consider reviewing these supplementary strategies to find more ideas, combine different elements of each strategy, and enrich your pedagogical toolkit!

• Active learning strategies   put your students at the center of the learning process, enriching the classroom experience and boosting engagement.
• As opposed to traditional learning activities,  experiential learning activities  build knowledge and skills through direct experience.
• Project-based learning   uses an open-ended approach in which students work alone or collectively to produce an engaging, intricate curriculum-related questions or challenges.
• Inquiry-based learning   is subdivided into four categories, all of which promote the importance of your students' development of questions, ideas and analyses.
• Adaptive learning  focuses on changing — or "adapting" — learning content for students on an individual basis, particularly with the help of technology.

👉 Create or log into your teacher account on Prodigy — a game-based learning platform that delivers differentiated instruction, automatically adjusting questions to accommodate player trouble spots and learning speeds. Aligned with curricula across the English-speaking world, it’s used by more than 90 million students and teachers.

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• PMC10495708

Effectiveness of differentiated instruction on learning outcomes and learning satisfaction in the evidence‐based nursing course: Empirical research quantitative

Shwu‐ru liou.

1 Chang Gung University of Science and Technology, Puzi, Chiayi Taiwan

2 Chang Gung Memorial Hospital Chiayi Branch, Puzi, Chiayi Taiwan

Ching‐Yu Cheng

Tsui‐ping chu, chia‐hao chang, hsiu‐chen liu, associated data.

The data that support the findings of this study are openly available in Mendeley Data at http://doi.org/10.17632/7fmswnmyft.1 .

Diversified students in higher education and the complexity and difficulty of the evidence‐based nursing course perceived by students challenge nursing educators. Differentiated instruction can provide students with various opportunities to learn and meet the learning needs of students with different academic abilities and strengths, which may be a solution. This study aimed to apply differentiated instruction to design the undergraduate evidence‐based nursing course and evaluate the effects of differentiated instruction on students' learning outcomes and learning satisfaction.

One‐group pretest–posttest pre‐experimental design was applied.

Ninety‐eight undergraduate nursing students enrolled in the evidence‐based nursing course 2020 participated in this study. Students' learning outcomes including preferred learning styles, classroom engagement, collaborative learning, attitudes towards evidence‐based nursing, learning satisfaction and evidence‐based nursing knowledge were measured using validated questionnaires.

The differentiated instruction increased students' learning interests, promoted focused and independent thinking, and enhanced academic achievement. Students' classroom engagement, attitudes towards evidence‐based nursing, evidence‐based nursing knowledge and learning satisfaction were improved after the course. The course designed with differentiated instruction provided a supportive learning environment and furnished a vivid pedagogical way for the unique nursing profession.

Patient or Public Contribution

Positive results of the study support the application of differentiated instruction in the evidence‐based nursing course. The study indicates that the application of differentiated instruction in mixed‐ability classrooms in the evidence‐based nursing course improved students' learning outcomes, attitudes towards evidence‐based nursing, evidence‐based nursing knowledge and learning satisfaction. In clinical settings where nurses are even more diverse in academic education, clinical experiences and learning preferences, differentiated instruction can be a suitable application for in‐service training and education to promote nurses' enthusiasm for professional learning.

1. INTRODUCTION

The importance of educating healthcare professionals with competency in providing evidence‐based practice (EBP) to enhance quality and safety care has been declared. The American Nurses Credentialing Center Magnet Recognition program stresses hospitals to prepare their nurses with the ability to apply EBP to ensure exemplary professional practice (Nelson‐Brantley et al.,  2020 ). The evidence‐based nursing (EBN) bridges the gap between research and practice by looking at the quality of research methods and findings that help nursing professionals make appropriate and effective decisions for clinical practice. Nursing students, who are future nursing professionals, are naturally expected to have competency in applying the best available evidence and be prepared with the ability of EBP before graduation (American Association of Colleges of Nursing [AACN],  2021 ).

With the increasing emphasis on EBN, nurse educators face two major issues. One is that nursing students regard the EBN course as complicated and difficult for them to understand or apply the knowledge and skills in clinical settings (Tlili et al.,  2022 ). The other is the challenge that students are more diversified in higher education due to their varied educational and life experiences (Trolian & Parker III,  2022 ). Because of the diversified characteristics, students demonstrate varying learning abilities, learning styles and academic levels in classrooms (Ramdani et al.,  2021 ). Tomlinson ( 2001 ) asserts that students learn best when their teachers accommodate the differences in their readiness levels, interests and learning profiles. Unfortunately, traditional and undifferentiated instruction that does not assist knowledge construction for students with various learning capacities causes problems of inequality and inequity in education (Tomlinson,  2001 ).

Student‐centred pedagogies, which place learners at the centre of the learning process, can meet learners' individual learning needs and styles and engage them in the process of learning (An & Mindrila,  2020 ). Examples of student‐centred pedagogies include active learning, which involves students in their own learning process (Nguyen et al.,  2021 ); collaborative learning, which engages students working together towards the attainment of goals (Lumatauw et al.,  2020 ); and problem‐based learning, which provides a learning environment for learners to actively collaborate with others and develop problem‐solving skills (Trullàs et al.,  2022 ). These student‐centred pedagogies focus more on the process of learning during class time. Differentiated instruction is another student‐centred approach (Gheyssens et al.,  2020 ) that emphasizes flexibility in the areas of content, process and product to provide more opportunities for students to choose appropriate content and access to content, learning activities that showcase their individual strengths, and methods that are suitable for them to demonstrate their learning outcomes (Tomlinson,  2000 ).

The Hallmarks of Excellence in nursing education proposed by the National League for Nursing (NLN) provides nursing faculties a guide to design and evaluate their education programme. One of the hallmarks emphasizes that teaching/learning strategies should meet the learning needs of a diverse student population (NLN,  2020 ). Differentiated instruction is teaching strategies that address the diverse learning needs of students (Tomlinson,  2001 ). These teaching strategies can meet the learning needs of students with different academic abilities and strengths and give various opportunities for students to learn (Boelens et al.,  2018 ; Tomlinson,  2001 ). Differentiated instruction has been broadly applied in elementary and high schools internationally, yet, very little evidence is reported in higher education (Turner et al.,  2017 ). Nevertheless, differentiated instruction is supposed to be demanded more in higher education since student populations in higher education systems are more culturally, socially and academically diverse (Boelens et al.,  2018 ).

To the best of our knowledge, there is currently no research empirically testing the effectiveness of applying differentiated instruction in nursing students' learning outcomes in an EBN course. Because of the importance of possessing competency in EBN and the diverse student characteristics, the purpose of this study was to apply differentiated instruction in designing the EBN course to increase undergraduate nursing students' learning interests in and better understanding of the EBN. The study also examined the effects of differentiated instruction on students' learning outcomes and learning satisfaction. Two research questions were set to guide the study:

• What are the effects of differentiated instruction on students' preferred learning styles?
• What are the effects of differentiated instruction on the degree of students' classroom engagement, collaborative learning, attitudes towards EBN, learning satisfaction and EBN knowledge?

2. BACKGROUND

2.1. theoretical background of differentiated instruction.

According to differentiated instruction, teachers proactively remodel curricula, teaching methods, resources, learning activities and student products to offer a range of learning opportunities that cater to students' individual learning abilities (Tomlinson,  2001 ). Differentiated instruction can be closely associated with several adult learning theories, including Humanism, Self‐Determination Theory, Sociocultural Constructivism and Multiple Intelligences. Humanism places the learner at the centre and emphasizes self‐actualization. It suggests that learning is self‐directed, and adults are capable of taking responsibility for their own learning (Mukhalalati & Taylor,  2019 ). Self‐Determination Theory gives students the responsibility to make choices about their learning, leading to increased motivation and a sense of control in the learning process (Alrabia,  2021 ). Sociocultural Constructivism proposes that individuals construct new knowledge based on their existing skills and knowledge. Learning occurs through active social interactions with peers, teachers and engagement in social activities (Mukhalalati & Taylor,  2019 ). Multiple Intelligences asserts that individuals possess different types of intelligence, and effective learning occurs when instruction is tailored to an individual's strengths and preferences in relation to a specific task (Magableh & Abdullah,  2020 ).

Differentiated instruction aligns with these theories in several ways. Firstly, it empowers students to have control over their learning and cater to their individual needs and preferences. Secondly, it promotes collaborative learning and knowledge construction by creating opportunities for students to engage in meaningful interactions with others. Thirdly, it recognizes and accommodates the diverse strengths and preferences of students, enabling them to engage with content in ways that align with their unique intelligence. These adult learning theories share common characteristics with differentiated instruction, as they emphasize learner‐centredness, autonomy, active engagement and the recognition of individual differences.

2.2. Effects of differentiated instruction

The combing use of differentiated instruction and student‐centred teaching strategies provides opportunities for students to transform their learning behaviour (Ismail & Allaq,  2019 ). Studies applying differentiated instruction in mixed‐ability classrooms revealed that students significantly and positively improved their learning achievements (Hapsari & Dahlan,  2018 ).

Although differentiated instruction is proposed to be useful at all levels of education, not many empirical studies reported its application in higher education (Boelens et al.,  2018 ). Published studies that applied differentiated instruction among non‐nursing students reported that students enhanced their learning interests (Sapan & Mede,  2022 ), developed independence and autonomy towards their learning (Chen & Chen,  2018 ; Sapan & Mede,  2022 ), grew positive attitudes towards the course (Darra & Kanellopoulou,  2019 ) and were satisfied with the classes and course design (Ismail & Allaq,  2019 ; Sapan & Mede,  2022 ). Some studies also reported that differentiated instruction significantly improved students' academic performance (Darra & Kanellopoulou,  2019 ) and achievement (Chen & Chen,  2018 ), increased students' cooperation, interaction, classroom engagement (Sapan & Mede,  2022 ), active learning (Darra & Kanellopoulou,  2019 ) and learning motivation (Chen & Chen,  2018 ; Sapan & Mede,  2022 ). Educators using differentiated instruction combined with student‐centred learning strategies found positive outcomes of students' successful learning skills and experiences, classroom engagement, learning interests or social interaction (Ismail & Allaq,  2019 ).

2.3. Definition of differentiated instruction

Differentiated instruction was first proposed as a teaching practice by Tomlinson in response to the extensive scope of student discrepancies in mixed‐ability classrooms. Tomlinson ( 2000 ) defines differentiated instruction plainly as tailoring instruction to meet students' needs. When teachers vary their teaching in order to fit individuals or small groups for the best experience, they are differentiating.

2.4. Description of the differentiated instruction

Differentiated instruction contains three sections: content and access to content, process and product. It emphasizes a flexible course design that allows curricula for differences in content, process and product sections to provide learners with the excellence of learning and satisfy their unique learning needs (Tomlinson,  2001 ).

2.4.1. First section: Content and access to content

The content refers to topics, concepts or themes. The differentiating content includes what students are to learn and how students access the material taught. It involves providing students with various resources and choices that match their readiness, interests and learning profiles to select and access the materials taught (Tomlinson,  2000 ).

Several ways are proposed for differentiating content. Teachers may use flexible grouping where students can work in small groups or alone to reinforce content; highlight or summarize key portions of content with illustrations or colours; present material in visual, auditory or kinaesthetic ways; provide lecture videotapes; use books, pictures or Internet as a means of developing understanding and knowledge of the topic or concept; use examples that relate to students' experiences or knowledge to practice situations or explain contents (Tomlinson,  2001 ).

2.4.2. Second section: Process

The process refers to how students make sense or understand and assimilate the information, concepts or skills. The differentiating process involves applying varying activities and techniques which can provide more opportunities for students to learn best and display individual strengths (Tomlinson,  2001 ). It concerns not only how teachers teach but also involves strategies that teachers encourage students to use to facilitate exploring the content taught. This can be done by tiering the course content and activities that can make students learn step by step; providing guidelines for every step of learning; using differentiated tactics to increase student interaction, engagement, higher order thinking and critical thinking during class time (Tomlinson,  2000 , 2001 ).

In addition, educators emphasized that differentiated instruction places students in the centre, provides opportunities for higher order thinking and group collaboration to solve problems, and changes students from passive acquisition of knowledge to an active learning process through student‐centred teachings such as teamwork learning, problem‐based learning or project‐based learning (Ismail & Allaq,  2019 ). Therefore, in the spirit of this phase, combining the use of student‐centred teaching methods to design classroom activities for the EBN course was considered.

2.4.3. Third section: Product

The differentiating product involves providing various choices of evaluations that permit students to express how much they comprehend and how well they are able to administer their knowledge and skills learned from the content (Tomlinson,  2000 ). The traits of successfully differentiated products contain providing evident and proper guides for success, focusing on real‐world application, advancing creative and critical thinking, requiring analysis or synthesis of information, permitting diverse methods of expression and providing opportunities for peer and self‐evaluation (Tomlinson,  2001 ).

To differentiate product, teachers can encourage students to express what they have learned in varied ways, offer opportunities for student‐derived topics for projects; allow for varied working arrangements—alone or with a group; provide clear guidelines for independent work that matches individual needs; and use a wide variety of assessments or assignments for students (Tomlinson,  2001 ).

3.1. Study design

This study used a one‐group pretest–posttest design to evaluate students' learning outcomes after the implementation of teaching/learning activities designed based on differentiated instruction. The one‐group pretest–posttest design is proposed to be useful for discovering the effectiveness of an intervention in a homogeneous group (Norwood,  2000 ). The research design, therefore, is suitable for this study because participants in the study were nursing students in the same age group and university.

3.2. Participants and setting

The participants were students in a 2‐year Registered Nurse‐to‐Bachelor of Science nursing programme who enrolled in the EBN course at the primary investigator's serving university in southern Taiwan in 2020. All students that enrolled in the EBN course taught by the researcher (a total of 100 students) were invited to participate in this study. Of them, 98 students completed and returned both the pre‐ and post‐test questionnaires with a response rate of 98%.

According to the concept of patient and public engagement and involvement (PPEI), the researched population is actively involved in the research design, is informed of research information and knowledge and participates in the research. The insights provided by these participants contribute to the research design and enhance the researcher's understanding of the condition under investigation.

In this study, although students were not directly involved in the course design, feedback from previous students who had taken the course was taken into consideration during the course design process. Students had the power to choose their preferred methods of learning under the guidance of the instructor. They had the freedom to select their learning mediums and materials, form groups for collaboration, explore research topics and articles of interest and determine their preferred modes of presentation. Moreover, students shared their discussion results throughout the course, presented their final work in class and participated in evaluating both their own and their peers' final presentations.

3.3. Development of the EBN course based on the differentiated instruction

3.3.1. course description.

The EBN course was a required, 2‐credit h undergraduate course for nursing students. The course was designed mainly based on the five steps of EBN: (1) asking an answerable clinical question, (2) acquiring the best evidence, (3) appraising the evidence, (4) applying the evidence and (5) auditing or evaluating the outcomes of the practice (Melnyk & Fineout‐Overholt,  2019 ). Since nursing students are not currently clinical nurses, the course focused more on the first three steps. The semester lasted 18 weeks. Excluding introduction, holiday, exam and project report weeks, seven programme units in 11 weeks were designed for the course. Table  1 presents the course objectives and teaching strategies derived from differentiated instruction.

Course objectives, sections of differentiated instruction and teaching strategies designed in the study.

The overall learning objectives of the course were first established and proposed for students. Each unit also had unit objectives that guided students to learn from that unit. The overall goal of the course was that nursing students learned how to search health‐related literature with empirical findings based on their answerable questions or topics of interest and assess the quality of evidence from the studies. A pre‐assessment to assist the understanding of individuals' readiness, interests and learning styles was provided to students before the class began.

3.3.2. Strategies for differentiated instruction

According to differentiated instruction, after understanding how students learn best, a course can be developed with differentiating content and access to content, differentiating process and differentiating product. Information from the pre‐assessment guided the instructor to appropriately differentiate the content, process and product of the EBN course throughout the semester.

The first section differentiating content involves providing students with various learning resources and choices to select and access the materials taught (Tomlinson,  2000 ). To differentiate content and access to content, teaching aids were developed as electronic and non‐electronic materials. For non‐electronic materials, books, extra supplemental articles in English and Chinese and reading and assignment guidelines were prepared and used in response to varied learning levels of complexity. When developing textual materials, we highlighted key portions of content in PowerPoint slides for each unit and used vivid illustrations, colours or graphs to help students to understand more about the content and made the contents more attractive to students. Case scenarios related to EBN steps were developed as examples for students to practice and explain contents.

For electronic materials, videos with PowerPoint slides for each unit lecture were made. All these materials were uploaded onto the school's electronic platform for courses, the E‐Campus, to allow students to access and learn the subject in a self‐paced format. The design of these materials can make the conceptual abstraction of the content more concrete and practical to students, provide opportunities for independent study, help and stimulate students to stay focused and clarify the content. In addition, supplemental instruction outside of the scheduled class times was offered for individuals or groups to reinforce contents.

The second section differentiating process encompasses using diverse activities and techniques which can furnish more chances for students to learn best (Tomlinson,  2001 ). To differentiate the process, we first applied flexible grouping for all classroom activities. Students decided the size of the group, such as working alone, in pairs or in small or large groups. Flexible grouping was also applied to the term project, oral presentation and final exam. Arranging appropriate class time proportions for various instructional strategies was then planned based on the unit topic. Combining the use of differentiated instruction and student‐centred teaching strategies which were proposed by researchers to transform students from passive learners to active learners and promote students' learning interests were also administered (Ismail & Allaq,  2019 ). In addition, 4 h of the class were arranged as independent study hours. Students could use the 4 h to work with whomever they felt comfortable.

The classroom activities designed for the EBN course included first, a 2‐h laboratory session for literature search was arranged. The school librarian was invited to guide students to use physical and online library resources. Students were asked to specify a topic of interest and turn in one searched research article based on the topic to demonstrate their ability to search for and access publications. Second, two clinical experts were invited to give speeches to share the role and application of the EBN in clinical to foster students' learning interests in EBN. Third, to provide information to the instructor and students about students' understanding of the core concepts and contents taught in the unit, learning sheets were developed and used at the end of each class. The items in the learning sheet were designed in various styles to meet the learning needs of students of varying levels. These item styles included single choice, multiple choice, fill‐in‐the‐blank, connecting the dots, short answer or essay questions that were helpful to cultivate students with different thinking abilities. These learning sheets were also designed with vivid illustrations to attract students' attention and interest.

Fourth, the literature circle activity was applied to help students integrate what they have learned in the module content with real hands‐on practice and to increase students' understanding of the content. The instructor first guided students to read the section in the selected research article in accordance with the course unit for that week. Using flexible grouping, students were then instructed to choose a research article they preferred, read the article and answer the guiding questions based on the chosen article. Finally, students decided on a way to share in class what they have discovered from the article.

The third section differentiating product involves providing various ways of evaluations for learners to exhibit their comprehension of the course and ability to apply the gained knowledge and skills learned from the content (Tomlinson,  2000 ). According to differentiated instruction, the teacher may combine tests with product options so that students have more opportunities to ponder, apply and display what they have learned from the content (Tomlinson,  2001 ). In the EBN course, project‐based learning with a presentation was designed to meet the general goal of the course so that students were able to evaluate the quality of evidence. Students were requested to finish a mini project by following a provided project guideline and a critical appraisal tool. Students were allowed to work on the project alone or in a group with two or more people. In addition, students decided on the topic of the project by themselves. At the end of the semester, students were asked to present their project publicly in ways they preferred. The class instructor and all students were responsible for the presentation evaluation. For the test, an academic article reading test was used. Students first decided to take it alone or in a group and the group size. They were allowed to find a health‐related research article in English or Chinese in accordance with their own interests before the test. Eight short answer questions were developed for students to answer based on the research article they selected. Two hours were scheduled for the test.

3.4. Outcome variables and measurements

Preferred learning style was measured by the Perceptual Learning‐Style Preference Questionnaire (PLSPQ) created by Reid ( 1987 , 1995 ). The PLSPQ consists of 30 items with six learning styles (five items for each learning style) including visual, auditory, kinaesthetic, tactile, individual and group learning. The scale is rated on a 5‐response Likert scale scoring from 1 (strongly disagree) to 5 (strongly agree). Since individuals may utilize a combination of senses to optimize their learning outcomes while preferring one particular sensor mode, each learning style is categorized into major, minor or negligible (or negative) preference. Major means the learners' preferred learning style; minor indicates learners who do not prefer to learn in such a way but can still function using such learning method, whereas negligible means they may have difficulty learning in that way. The cut‐off points for each of these categories are as follows: 40 or above for major, 25–39 for minor and 24 or less for negligible. The reliability of the original scale was confirmed by the split‐half reliability. In the study, Cronbach's alpha for the six subscales of the PLSPQ were 0.73, 0.66, 0.71, 0.67, 0.89 and 0.89 for visual, auditory, kinaesthetic, tactile, individual and group learning respectively.

The Value of Teams (VT) developed by Levine et al. ( 2004 ) was used to measure students' value of collaborative learning. The VT consists of 17 items scored on a 5‐point Likert scale from 1 (strongly disagree) to 5 (strongly agree). A higher score indicates greater agreement about the value of collaborative learning. The validity of the scale development study was confirmed by a factor analysis that showed two subscales: the value of group work and the value of working with peers. Cronbach's alphas for these two dimensions were 0.79 and 0.81 respectively (Levine et al.,  2004 ). In this study, Cronbach's alpha was 0.85. Exploratory factor analysis showed that the VT explained 48.46% of the variation in the value of collaborative learning. The first factor (value of group work) explained 37.67% of the variation while the second factor (value of working with peers) added another 10.79%.

The Classroom Engagement Survey (CES) developed by O'Malley and colleagues (O'Malley et al.,  2003 ) was used to measure students' level of classroom engagement. The CES is a 9‐item scale with Likert‐type response options ranging from 1 (strongly disagree) to 5 (strongly agree). A higher score indicates a higher level of agreement in classroom engagement. Reliability (Cronbach's alpha was 0.84) and validity were confirmed by factor analysis in the original study. In this study, Cronbach's alpha was 0.92. Exploratory factor analysis showed that the CES as a single factor explained 41.35% of the variation in classroom engagement.

The short form of Individual Development and Educational Assessment (IDEA) developed and validated by the IDEA Center was used to evaluate students' satisfaction with the course learning. The scale, which contains 18 items and uses a 5‐point Likert scale (item score ranges from 1 to 5), has been utilized at a variety of universities in the USA with confirmed reliability and validity (Benton & Li,  2015 ). A higher score indicates a higher level of satisfaction with the designated course. In the study, Cronbach's alpha was 0.90. Parallel analysis resulted in two factors and exploratory factor analysis was done by requesting two factors. Results showed that the IDEA could explain 58.44% of the variation in learning satisfaction. The first factor (12 items), named knowledge and skills gained, explained 47.45% of the variation in learning satisfaction while the second factor (six items), named perceived course quality, added another 10.99%.

The 15‐item Attitudes Towards Evidence‐based Nursing scale (ATEN) was used to rate nursing students' attitudes towards EBN. The ATEN was developed by the researchers based on literature and rated on a 5‐response Likert scale scoring from 1(strongly disagree) to 5 (strongly agree). In the study, Cronbach's alpha for the scale was 0.85. Parallel analysis resulted in two factors and exploratory factor analysis was done by requesting two factors. Results showed that the ATEN explained 54.83% of the variation in attitudes towards EBN. The first factor (nine items), named importance of EBN, explained 36.49% of the variation in attitudes towards EBN while the second factor (six items), named perceived competence in EBN, added another 18.34%.

The 16‐item Concept Inventory (CI) was developed by the research team to measure students' level of EBN knowledge and was used to assess students' academic performance. The CVI validity of the Concept Inventory was confirmed (CVI = 0.94) in this study.

A demographic sheet was used to understand individual characteristics such as age, grade level, learning experiences and achievement, and educational and career plans. Questions about the role of differentiated instruction in facilitating students' EBN learning were also asked.

3.5. Ethical considerations

We began to conduct the study after obtaining approval from an Institutional Review Board in Taiwan (REDACTED). In the first class, the course syllabus, the purpose and procedures of this study and participants' rights were verbally explained to the students. Participants were assured that they had the right not to fill out the questionnaires or answer any questions that they did not feel comfortable answering and that such a refusal would not influence their academic grades. All participants signed a consent form before data collection. Since the EBN course is a required course, all students in the course were required to participate in all designed activities.

3.6. Procedures

Before the class began, the EBN course syllabus that outlined course objectives, unit contents, classroom activities, project guidelines and methods of performance evaluation, supplementary reading articles, learning sheets, PowerPoint slides and lecture videos of the EBN course were all uploaded to the school's online learning platform, the E‐campus. Students who were willing to participate in the study received a packet containing a cover letter, a set of questionnaires and a set of multiple‐choice test questions at the beginning of the first and last class days. Students could choose to answer the questionnaires at any place they felt comfortable with and send the completed questionnaires back to the research assistant using the prepared envelope.

3.7. Statistical analysis

All data were entered and analysed using the Statistical Package for the Social Sciences (SPSS) version 23.0. Demographic information was summarized using descriptive statistics. There are no missing values for measured variables. Before doing inferential statistics, all measured variables were tested for normality using the Shapiro–Wilk test. Results showed that except for learning style‐visual at the pretest and attitudes towards EBN at the pretest and posttest, all other variables were not normally distributed. Therefore, to test the effects of differentiated instruction, the Friedman test and Wilcoxon signed‐rank test were used to compare differences before and after the differentiated instruction on classroom engagement, collaborative learning, learning satisfaction, preferred learning styles and EBN knowledge. Paired t‐test was used to compare differences before and after the differentiated instruction on attitudes towards EBN. All tests were two‐sided and p ‐values of less than 0.05 were considered to be statistically significant.

4.1. Descriptive results

The mean age of the participants was 20.81 (SD = 1.06) years and 94.9% were females. As shown in Table  2 , most students expressed that their academic performance was either fair or good at their previous college and current school, and considered their current academic performance improved. More than half of the students planned to obtain a bachelor's as their last academic degree and had a moderate or strong willingness to work as clinical nurses after graduation. Over 70% of the students expressed that they had a great sense or sense of academic accomplishment in the EBN course learning and agreed or strongly agreed that the differentiated instruction was worth applying to other courses.

Demographic information of the participants.

As shown in Table  3 , at posttest, students regarded differentiated instruction played an important role in facilitating their EBN learning, such as increasing learning interests, helping them to think independently and improving concentration on learning and learning aggressively. As a result, their acceptance of the EBN course augmented and they agreed that the EBN course was worth taking. The number of passive learners decreased while active learners increased. More students considered that the nurses with a bachelor's degree need to do EBN; this percentage was higher than the percentage of nurses with a master's or doctoral degree.

Differentiated instruction course design in facilitating students' learning.

4.2. Preferences of learning styles among nursing students

At the pretest, the percentage of students owning more than one major or preferred learning method was: 23.5% for two, 23.5% for three, 20.4% for four, 10.2% for five and 7.1% for six methods. Other 11.2% of the students had only one and 4.1% did not have any major or preferred learning methods. At posttest, the percentage changed to 18.4% for two, 24.5% for three, 30.6% for four, 9.2% for five and 9.2% for six methods. Other 5.1% of the students had only one and 3.1% did not have any major or preferred learning methods. The number of students who had unimodal or no major or preferred learning method decreased from pretest to posttest.

As shown in Table  4 , according to the mean cut‐off points stated by Reid ( 1995 ), at both pretest and posttest, the learning styles of kinaesthetic, tactile, and group fell into the major category of learning styles whereas the visual, auditory and individual learning styles fell into the minor category. At the pretest, the Friedman test showed that scores of visual and individual learning styles were lower than scores of the other learning styles (Chi‐square = 155.64, p  < 0.001). At posttest, the score of the individual learning style was the lowest while the group learning style had a higher score than visual, auditory, kinaesthetic and individual learning (Chi‐square = 240.23, p  < 0.001).

Students' preferred learning styles.

Note : The cut‐off point for major: 40 or above, minor: 25–39 and negligible: 24 or less.

4.3. Effects of differentiated instruction on measured variables

As shown in Table  5 , the scores of group and tactile preferred learning styles increased significantly from pretest to posttest whereas the score of individual learning style decreased ( p  < 0.05). The score for classroom engagement, collaborative learning, learning satisfaction and attitudes towards EBN and EBN knowledge increased significantly from pretest to posttest.

Effects of differentiated instruction on measured variables.

Note : Paired t ‐test was used to compare scores of attitudes towards EBN, whereas Wilcoxon signed‐rank test was used to analyse all the rest variables at pretest and posttest.

5. DISCUSSION

The purposes of this study are to apply differentiated instruction for an EBN course presented to nursing students in Taiwan and test the effects of differentiated instruction on students' learning outcomes. Although not many studies reported the application of differentiated instruction in higher education, research findings from this study provided meaningful evidence for the contribution of differentiated instruction to undergraduate nursing students' learning in the EBN course. Generally, students demonstrated positive standpoints towards the role of differentiated instruction in facilitating their EBN course learning and gained substantial growth at the end of the semester. Most of the students said that they benefited from the EBN course designed with differentiated instruction and believed that the strategies employed in the three sections of differentiated instruction increased their learning interests, promoted their focused and independent thinking and gave them a sense of academic achievement. In addition, nursing students' acceptance of the EBN course was enhanced. The number of passive learners decreased while active learners increased.

The study's positive results support the use of differentiated instruction in the EBN course. These findings align with the principles of student‐centred pedagogies, emphasizing flexibility, choice, collaboration and active participation in the learning process, all of which are key traits of differentiated instruction (An & Mindrila,  2020 ). Moreover, the study's results are congruent with some adult learning theories such as Self‐Determination Theory (Alrabia,  2021 ) and Sociocultural Constructivism (Mukhalalati & Taylor,  2019 ) that emphasize student autonomy and motivation. Students take responsibility for their own learning and choose how they learn and knowledge is constructed collaboratively by collaborating with others.

Similar to the results of previous studies with non‐university students, differentiated instruction provides students with opportunities to choose learning methods that meet their learning styles and progress their learning at a pace suitable for their needs and abilities (Iqbal et al.,  2020 ). When students are offered meaningful opportunities to select learning methods and demonstrate their abilities, strength, or talents, they relish learning more, become more self‐directed and turn into focused thinkers (Darra & Kanellopoulou,  2019 ; Sapan & Mede,  2022 ). All the benefits of differentiated learning lead students to positive outcomes including academic achievement, active learning, group interaction and cooperation, self‐confidence and satisfaction with the class (Chen & Chen,  2018 ; Darra & Kanellopoulou,  2019 ; Gheyssens et al.,  2020 ;Ismail & Allaq,  2019 ; Sapan & Mede,  2022 ).

In addition, in this study, nursing students regarded the EBN course designed with differentiated instruction as worth taking and considered differentiated instruction worth applying to other courses. These results are congruent with previous studies that students generally responded favourably to differentiated instruction and preferred to experiment with applying the course design in other classrooms (Ismail & Allaq,  2019 ; Sapan & Mede,  2022 ). More surprisingly, at the end of the course, more nursing students agreed that nurses with a BSN degree needed to perform EBN when compared to nurses with a master's or doctoral degree. Two reasons might explain this result. One is that while students might not understand the master's and doctoral programmes, they gained learning interests in the subject designed with differentiated instruction. The other might be that healthcare‐related institutions have asserted that healthcare professionals should use the most validated research findings as evidence to make decisions for patient care (AACN,  2021 ). Therefore, students were aware that the EBN is a growing trend and momentum in clinical nursing practice.

The learning styles preferred by students in the study were kinaesthetic, tactile and group learning. These results indicated that nursing students preferred to learn through hands‐on practices, physical and active involvement in classroom, and valued group work and interaction with teammates. These findings were quite different from previous studies with nursing students. Mckenna et al. ( 2018 ) found that students in the Master of Science in Nursing programme preferred kinaesthetic learning to auditory learning, whereas undergraduate nursing students preferred either auditory (Soliman,  2017 ) or visual learning style (Alharbi et al.,  2017 ). Some other studies found that dental students preferred an auditory learning style (Akhlaghi et al.,  2018 ). Different cultural backgrounds might be the reason for this difference.

Researchers proposed that embedded use of differentiated instruction with various teaching strategies could develop opportunities for students to maximize individual growth and success in learning (Gheyssens et al.,  2020 ; Ismail & Allaq,  2019 ; Ramdani et al.,  2021 ). Our study found that the individual learning style score significantly decreased but the group learning style score significantly increased at the end of the semester. The combining use of differentiated instruction and other teaching strategies such as collaborative learning with flexible grouping in this study created a more supportive learning environment for students to meet their multiple learning needs. Collaborative learning constructs a learning environment that offers opportunities for students to work with peers who own different learning styles. This environment enables individuals to experience and learn different learning styles from group members and promote individuals' performance achievement from the newly gained learning styles and from the help of higher achievers in the team (Ismail & Allaq,  2019 ). Our study also found that at the end of the semester, the number of preferred learning styles used by students increased.

We found in the study that differentiated instruction had positive effects on students' classroom engagement, and attitudes towards EBN and EBN knowledge. These results were congruent with previous studies that differentiated instruction positively impacted students' learning process and academic performance by improving student engagement and learning attitude towards the lessons (Darra & Kanellopoulou,  2019 ; Haelermans,  2022 ; Ismail & Allaq,  2019 ). In other words, the learning environment influences students' learning experiences. A learning environment that provides students with insufficient motivation to learn might lead to students' disengagement with the classroom. The EBN course was developed based on the spirit of differentiated instruction, which has been considered as contributing to the creation of a comfortable learning environment and the formation of positive motivation to learn (Iqbal et al.,  2020 ; Sapan & Mede,  2022 ). In addition, differentiated instruction is a student‐centred approach that has been suggested as conducive to behaviourally, emotionally or cognitively engaging students in learning through participation in classroom activities, and interaction with teachers and classmates (Ismail & Allaq,  2019 ; Sapan & Mede,  2022 ). The student‐centred learning environment also offers opportunities for students to transform their learning behaviour from passive to active (Ismail & Allaq,  2019 ).

Nursing students' attitudes towards EBN were significantly more positive at the end of the course. The result is similar to one previous research finding that the differentiated instruction approach had a positive effect on non‐nursing undergraduate students' attitudes towards course learning (Darra & Kanellopoulou,  2019 ). Students' EBN knowledge significantly improved at the end of the semester as well was supported by other studies that used differentiated instruction. These previous studies exhibited results of improvement in academic performances among non‐university students such as greater gains in calculus or mathematical understanding (Chen & Chen,  2018 ), and outperformance in the course examination (Haelermans,  2022 ). Learning satisfaction for the EBN course among nursing students also significantly increased at the end of the course. Differentiated instruction that furnishes students with diverse learning methods to choose from can meet individuals' learning needs and is conducive to students' learning (Iqbal et al.,  2020 ), motivation (Chen & Chen,  2018 ; Sapan & Mede,  2022 ) and performance (Chen & Chen,  2018 ; Haelermans,  2022 ). When students' learning needs are satisfied, naturally, they are satisfied with the course.

6. STUDY LIMITATIONS

Although differentiated instruction exhibits positive effects on nursing students' learning outcomes, the results of differentiated instruction designed for the EBN subject are still preliminary. The study findings are limited because of the incapability to build a substantial, causal relationship test between the effectiveness of differentiated instruction and the learning outcomes. The major limitation of this study is the single‐group research design, which is susceptible to threatening the effectiveness of the intervention. Without a comparison group, it is challenging to confirm whether the intervention can be successfully performed in other contexts. The study is also limited due to the insufficiency of generalizability of its study population, such as few samples and a homogenous cultural background in the study participants. Therefore, further studies are recommended for researchers to include a comparison group to furnish more vigorous experimental evidence for the effectiveness of differentiated instruction. Including more study participants as nursing students in other nursing programmes, such as the regular 4‐year bachelor's degree or 5‐year diploma programme or inviting a variety of other nursing schools, are encouraged to increase the strength of the generalizability of the results.

7. IMPLICATION FOR PRACTICE

Nurses demonstrating competence in providing EBN is emphasized in current clinical practice. Nursing students, the future nurses, need also to have the EBN ability to seamlessly connect to future clinical nursing practice. This study indicates that the application of differentiated instruction in mixed‐ability classrooms in the EBN course improved students' learning outcomes, attitudes towards EBN and EBN knowledge and learning satisfaction. These results are different from the previous findings that students consider the EBN course as complicated and difficult since courses designed with differentiated instruction meet the learning needs of students with different academic abilities and strengthen and give various opportunities for students to learn. In clinical settings where nurses are even more diverse in academic education, clinical experiences and learning preferences, differentiated instruction can be a suitable application for in‐service training and education to promote nurses' enthusiasm for professional learning.

8. CONCLUSION

Differentiated instruction has been popularly applied in elementary and secondary schools internationally. Yet, limited empirical study has been reported about this approach applied in higher education, especially for nursing education. Moreover, there is a paucity of literature reporting the application of this pedagogy, specifically, the outcome evaluations of application in EBN courses. The study designed the EBN course based on differentiated instruction for undergraduate nursing students in order to provide a supportive learning environment and to furnish a vivid pedagogical way for the unique nursing profession. The findings indicate that implementing differentiated instruction in the EBN course improved students' classroom engagement, group learning style, learning satisfaction, attitudes towards EBN and EBN knowledge. The positive results of the study contribute to the existing body of knowledge by providing evidence of the positive effects of differentiated instruction in the EBN course. Differentiated instruction has the potential to be beneficial not only in academia but also in clinical in‐service training and education, by addressing the diverse academic backgrounds, clinical experiences and learning preferences of nurses. Further research in this field can expand upon these findings and establish a stronger foundation for effectively implementing differentiated instruction in nursing education, both in academic and clinical contexts.

AUTHOR CONTRIBUTIONS

Conceptualization: SRL, CYC, CHC and TPC; Data curation: SRL, CYC and CHC; Formal Analysis: CYC and CHC; Funding acquisition: SRL and CYC; Investigation: SRL and HCL; Methodology: SRL, CYC and HCL; Project administration: SRL, CYC, HCL and TPC; Supervision: SRL and CYC; Validation: SRL, CYC and TPC; Writing—original draft: SRL, CYC and TPC; Writing—review and editing: SRL, CYC, CHC, TPC and HCL.

FUNDING INFORMATION

This research was funded by the Chang Gung Medical Research Program, grant number CMRPF6K0051 and the Ministry of Science and Technology (MOST 107‐2511‐H‐255‐002‐) in Taiwan.

CONFLICT OF INTEREST STATEMENT

The authors have no conflict of interest to declare.

ETHICS STATEMENT

Ethical approval for the study was obtained from the Institutional Review Board of the investigator’s serving institution. Written consent was obtained from all participants, ensuring confidentiality, anonymity, and the option to participate. The participants were assured that refusal to participate or answer certain questions would not affect their academic grades.

ACKNOWLEDGEMENTS

The authors thank all funders for financial support and students for their participation.

Liou, S.‐R. , Cheng, C.‐Y. , Chu, T.‐P. , Chang, C.‐H. , & Liu, H.‐C. (2023). Effectiveness of differentiated instruction on learning outcomes and learning satisfaction in the evidence‐based nursing course: Empirical research quantitative . Nursing Open , 10 , 6794–6807. 10.1002/nop2.1926 [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]

DATA AVAILABILITY STATEMENT

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Home » Tips for Teachers » 15 Helpful Differentiated Instruction Strategies for Effective Teaching in 2023

15 Helpful Differentiated Instruction Strategies for Effective Teaching in 2023

As teaching methods continue to evolve, teachers must be equipped with differentiated instruction strategies if they want their students to succeed. 

What is differentiated instruction? It’s when a teacher recognizes the varying learning needs within the classroom and adapts lessons accordingly. By responding to learner variance through tailored approaches, educators can create a personalized experience for all learners that fosters true academic growth.

Differentiated instruction allows educators to tailor their teaching approach, providing each student with the opportunity to learn in a way that works best for them. Through strategic use of varied strategies & techniques, teachers can create an inviting environment where all learners feel supported and understanding increases at every level.

Differentiating instruction is essential for engaging all learners. Teachers can create independent projects based on each student’s strengths and interests, or provide varied assignments with the same learning goals. To effectively differentiate, teachers must also make sure to simultaneously accommodate individual learning styles by providing unique opportunities to learn in an interactive environment. The teacher becomes a facilitator who guides students through their own journey of growth and discovery.

Want to create an equitable learning environment? Learn how differentiating instruction can help meet the needs of diverse learners. Discover 15 differentiated instruction strategies with practical examples, from formative assessment and grouping by ability levels to using manipulatives for all ages, that you can implement in the classroom! Equip yourself today and unlock the potential of each learner in a meaningful way:

What are we waiting for? Let’s begin!

1. Learning Stations

This instructional strategy encourages exploration and self-paced learning by setting up various centers around the classroom. By allowing students to interact with these interactive stations, they can develop an in-depth understanding of concepts and skills that is tailored to their individual needs.

Examples of Differentiated Instruction

•  A language arts class could provide varied and stimulating learning experiences with the introduction of three unique stations, tailored to different student needs. Through reading activities at one station, writing tasks in another, and opportunities for students to explore digital tools at a technology focused corner – all types of learners can engage their creativity while having fun.
• From creative writing exercises to honing their grammar skills, middle schoolers get a well-rounded English education by journeying through an array of interactive stations. With stimulating activities and vibrant materials at each stop along the way, students engage in independent or collaborative learning experiences that elevate them beyond just reading and writing drills.
• At this high school science class, students explore the subject through a multitude of interactive activities. Through lab experiments, data analysis and research tasks that tap into various learning styles and abilities – all with an opportunity for collaboration amongst peers in pairs or small groups!
• Elementary students are honing their math skills with a rotation-style classroom experience that puts the focus on hands-on manipulation, technology resources and teacher guidance. With this approach, pupils can maximize potential by tackling challenges at an individualized pace and level of understanding.

Check out how Elizabeth from The Kinderhearted Classroom Channel organizes her centers and stations in the classroom.

2. Tiered Assignments

This strategy caters to each student’s individual preferences and level of knowledge by providing assignments tailored specifically for them.

• Social studies classes offer students the chance to explore a variety of perspectives, with activities ranging from constructing timelines and reports to delivering presentations. Each assignment is tailored around specific historical events, allowing for an in-depth understanding of their context and legacy.
• In a social studies class, students are empowered to select their own challenge level as they explore an intriguing historical moment. The assignment offers varied support and resources appropriate for any learner’s journey of discovery!
• At this elementary school, a writing class is empowering students with personalized assignments to craft their own stories. Educators have developed tiered options of prompts and supports based on each student’s ability level and interests for an optimal learning experience.
• Middle school students get to put their math and science skills into action with a unique tiered assignment: bridge-building! Equipped with materials, support resources, and various levels of complexity based on proficiency level, they’ll gain invaluable insight in the creative process while learning at their own pace.

This video provides you with cases of secondary-level teachers incorporating instructional techniques that meet the needs of a wide range of students while maintaining a steady focus on essential learning objectives.

3. Interest-Based Learning

Engage students with relevant lessons and activities designed to spark curiosity through the exploration of their interests, hobbies, or real-world experiences.

• Science students are invited to explore the impact of current environmental problems by studying a range of research projects focused on topics like global warming and pollution.
• In a high school English class, students are empowered to explore their literary interests. With an array of intriguing books approved by the teacher and creative freedom in selecting topics and writing formats, this educational experience allows each student to deepen their understanding through individualized discovery.
• At the middle school level, music classes offer students a unique opportunity to explore musical creativity. With differentiated instruction tailored to individual student interests and abilities, every child has access to an immersive experience learning their chosen instrument as they build ability in composition and performance.
• In this unique art class, students of all ages and artistic abilities are encouraged to explore their creative potential. With differentiated instruction tailored specifically for each student’s needs, there is something special here for everyone!

See how the educators at Walter Bracken STEAM Academy engage students by letting them choose outside-the-box enrichment classes, like toy making, drones, and candy chemistry.

4. Curriculum Compacting

To ensure that all students reach their full potential, this strategy enables advanced learners to challenge themselves with a personalized curriculum tailored to fit individual growth.

• Unlocking the power of advanced learners, pre-tests in a math class can uncover their knowledge and identify areas to explore further. Those who demonstrate mastery could access even more complex material that will enrich their understanding of concepts.
• High school math classes are providing students who have already mastered algebra the opportunity to further their education with an advanced course. Through differentiated instruction, these learners receive personalized support needed for successful progression in this more complex subject matter.
• At a local elementary school, students who have master basic science concepts receive the opportunity to take their learning up another notch. With tailored instruction and support from teachers, these driven learners are able to push beyond what is typically taught in class in order for them explore more complex area of scientific exploration.
• At a middle school, students who have already shown excellence in reading can take their education to the next level. By offering differentiated instruction and support, these learners are provided with an opportunity to engage in more advanced material and push towards greater academic achievement.

This video is produced by Gordon Daigle in the Center for Excellence in Teaching and Learning (CETL) at UConn. Here you’ll find some info about Curriculum Compacting.

5. Graphic Organizers

Effective learning can be achieved when students utilize visual aids to structure and commit information to memory. By leveraging visuals, learners are given a valuable tool that increases their comprehension of the material at hand.

• By utilizing a Venn diagram in an English class, instructors can assist students in discovering compelling similarities and differences between two characters from the same novel. Through this method of comparison and contrast, learners will have no difficulty exploring intricate relationships within literature!
• With the aid of a graphic organizer, high school history classes can now analyze and compare various historical events with greater clarity. The organizational tool brings focus to identifying influential moments in time, contrasting critical details between pivotal points in our past along with forming meaningful conclusions.
• Elementary school students can tap into their creative side with the help of a graphic organizer! This tool provides structure and guidance as they work through all stages of writing; be it brainstorming, organizing details, or crafting a narrative. A perfect partner in discovering one’s voice on paper!
• In a middle school science class, students are given the tools to look closely at the world around them. Through an interactive graphic organizer, they can identify and explore each step of the scientific method – from making observations and collecting data all the way through drawing conclusions – so that they may examine their environment with deeper insight then ever before!

See how graphic organizers help students organize their thoughts and ideas for answering questions, function as a pre-writing tool for essays, and provide a visual display of information.

6. Student Choice

Empower students to take control of their own learning by allowing them the freedom to select how they demonstrate understanding. This approach helps facilitate a meaningful and engaging educational experience that is tailored to individual student needs.

• Music class offers a great opportunity for students to explore their creativity with the power of sound. Through selection of instruments and songs, they can discover new ways to express themselves while learning fundamental music principles essential in any musician’s journey!
• It is important to give students the opportunity to explore and hone their reading skills in an engaging way. By allowing them access to books of interest, across genres and within their comfort levels when it comes to difficulty, they can build a stronger understanding – while enjoying the process too!
• Let students customize their writing experience! Give them the freedom to pick between a narrative, persuasive essay or poem -and then select an engaging topic of their choice like a personal memory or research paper. They’ll be able to craft meaningful projects that align with both school requirements and interests for deeper engagement!
• By providing personalized assessments, students have the opportunity to demonstrate their knowledge and express themselves in a meaningful way. Through writing papers, giving presentations, making videos or podcasts and even developing websites – each student can tap into their individual strengths to showcase what they’ve learned with creativity and confidence!

Learn more about the student choice strategy from Megan McGregor, Head of Virtual Mentorship at Modern Classrooms Project.

7. Flexible Grouping

This strategy ensures that each student is placed in the most beneficial learning environment, with groups continually adjusting to reflect their evolving needs and interests.

• Science class students can explore personal interests in the sciences through dynamic projects. Groups of biology, chemistry and physics enthusiasts could work together to bring real-world understanding into their studies.
• Interest Groups provide a unique opportunity to bring together students with shared interests, helping them come up with creative projects that utilize their skills and knowledge. Young gardeners can work on growing vegetables or flowers while those interested in photography have the chance to hone their craft through collaborative photo manipulation projects.
• By grouping students according to their unique learning profiles, we enable them to maximize their individual strengths and capitalize on collaborative opportunities. Visual learners can join forces for a creative visual project such as an art-based presentation or graphic organizer. Meanwhile, those who feel more comfortable with auditory tasks can come together to create audio recordings of stories or develop videos that include artistic elements!
• By utilizing mixed ability grouping, students of varying skill levels come together to foster an enriching learning environment. In such a setting, those who excel in particular areas are able to serve as mentors and help their peers understand concepts more clearly; at the same time struggling learners can offer valuable skills like creative problem-solving or critical thinking that would otherwise be overlooked.

Here is an example of how you can yse flexible groupping in your classroom.

8. Learning Contracts

By developing individualized learning contracts with each student, we’re able to empower them to reach their own educational objectives through the completion of tailored tasks.

• In order to maximize student success and engagement, a teacher could create an individually tailored learning contract with each of their history students. This agreement would outline the information that needs to be studied, any resources or reference materials needed for completion of assignments, and specific tasks they must complete.
• When it comes to learning, no two students are the same. With personalized education programs in place, each student can take ownership of their growth and development by creating individualized goals and action steps based on what sparks their interest.
• With Self-Paced Learning, students can progress through their studies in an individualized way so they have the opportunity to gain a complete understanding of content. This approach ensures that everyone has ample time and space for learning at their own pace without feeling rushed or overwhelmed.
• With Project-Based Learning, students have the opportunity to showcase their comprehension of a concept or topic in an inventive and meaningful way. By allowing them to design projects that are tailored toward their individual interests, they can apply what they learn with greater enthusiasm while still achieving educational success!

This video describes the basic elements for designing a learning contract for students.

9. Technology Integration

By utilizing technology, we are introducing a unique approach to instruction that empowers students to engage with learning materials. This will foster an enriched educational journey and help promote deeper understanding of the subject material.

• Language arts classes can have a digital edge, thanks to tools like Google Classroom! This platform provides teachers with an effective way to deliver instruction and assign fun online activities.
• Through Digital Storytelling, students tap into their creative potential and develop digital literacy skills by creating multimedia stories with a variety of tools! By using programs like Adobe Spark, StoryMap JS, and Google Tour Builder – they are able to put together engaging pieces that incorporate text, images audio video. It’s a great way for them to learn how content can be manipulated in various mediums while further developing project-based learning abilities.
• IWBs are a dynamic teaching tool. For educators, they provide the ability to display and annotate interesting digital content while engaging students in learning activities that foster collaboration with peers during instruction. Students benefit too – using IWBs for presenting work and working together on projects encourages exploration of valuable online resources.
• With interactive simulations and engaging games, students can now explore science concepts or sharpen their problem-solving capabilities in exciting virtual worlds. Technologies like PhET and Concord Consortium help bring complex theories to life while Minecraft provides an immersive atmosphere for learning collaboration skills!

This video provides you with the essentials of the technology integration strategy.

10. Project-Based Learning

To foster meaningful learning experiences, we propose a collaborative strategy that encourages students to work together on current issues and challenges. Through this approach, they will be able to apply their knowledge while having the opportunity to think critically and creatively.

• In a social studies class, students could take on the challenge of researching and proposing solutions to current global issues impacting society today. From human trafficking to climate change – their project would be an opportunity for them to engage in critical thinking while taking meaningful steps towards creating real-world impact!
• Students gain the unique opportunity to take their passions and put them into action, by creating projects that tackle community issues. From designing public awareness campaigns around pressing topics or constructing a sprawling garden for local residents – students can foster academic growth as well  develop meaningful social-emotional skills all while making an impact in their neighborhood!
• Students take on real-world design challenges in groups, combining their critical thinking and problem solving skills to tackle problems such as building a durable bridge that can support weight, designing an effective prosthetic limb or constructing sustainable energy systems. This hands-on approach provides students the opportunity to develop collaboration abilities while also gaining valuable insight into engineering process.
• Communication and presentation skills are an invaluable asset for students. Crafting a multimedia project provides them with the chance to develop both digital literacy, as well as essential communication tools such as how to engage listeners in their ideas or stories. Examples of these projects could range from creating video documentaries and designing websites, all the way through to podcasting – allowing student creativity full rein!

In this video, there are many tips and resources to help you get started.

11. Peer Teaching

This strategy involves allowing students to teach each other and learn from each other. This strategy involves allowing students to teach each other and learn from each other.

The main benefits of peer teaching include, but are not limited to, the following:

• Learners receive a more personalised learning experience.
• Direct interaction between learners promotes active learning.
• Learners feel more comfortable and open when interacting with a peer.
• Peers share a similar vocabulary, allowing for greater understanding.
• Peer teachers reinforce their own learning by instructing others.
• Science students can team up and explore fascinating topics, delving into their research to unearth new discoveries. Presenting these findings is sure to be an engaging experience for everyone in the class!
• The Jigsaw Method is a great way to engage students in the learning process. By breaking them into smaller groups and giving each group distinct pieces of knowledge, they can become experts in their topic before coming together with other like-minded peers through collaboration and communication skills development. This encourages student involvement while preparing individuals for more complex problem solving down the line!
• By using the mentor-mentee relationship in peer tutoring programs, students are able to access personalized instruction while simultaneously working on improving their leadership and compassion. Those with a greater grasp of academic concepts can provide guidance and feedback to peers who require additional assistance—strengthening both parties’ overall education experience.
• Cooperative learning is a method of teaching which promotes critical thinking and social-emotional development by providing students with the opportunity to engage in collaborative problem solving. Through this approach, learners are empowered to take ownership over their own education as well as that of their peers; establishing an environment conducive towards success for everyone involved!

More info about this concept you will find in the video below.

12. Multisensory Instruction

This instructional strategy seeks to immerse students in a multi-sensory experience, tapping into their visual, auditory and tactile learning preferences for an engaging educational journey.

• In math classes, geometric concepts can become more accessible and enjoyable when teachers introduce interesting manipulatives such as blocks or cubes. These tools bridge the gap between abstract theory and tangible practice, creating a better overall learning experience.
• Manipulatives provide students with an engaging and tactile learning experience that can help to make abstract concepts more concrete. By using blocks, tiles or other objects in the classroom, multiple senses become involved while paralleling different learning styles; thus allowing new information to be absorbed easier by all kinds of learners.
• Mind mapping is an incredibly powerful tool, helping students to think and create in new ways. This visual strategy can help organize thoughts while also stimulating critical thinking skills and sparking creativity – a great aid for learners of all styles!
• Role-playing offers unique insights into the past, allowing students to inhabit another person’s story and experience it first hand. Through this process, they gain a deeper appreciation for how historical events unfolded without having to be directly involved in them.

In this video, you will find an example of a Literature lesson with multi-sensory methods.

13. Differentiated Homework

This strategy provides students with options tailored to their interests and learning styles, offering them the chance to take responsibility for their own academic journey. This enables students to focus on assignments they are motivated in completing, helping cultivate a passion-driven approach towards education.

• In language arts class, the teacher seeks to challenge students by requesting they read a novel and then write sum-ups of their reading while asking others to further assess it through analysis of its author’s usage of literary devices.
• With Choice Boards, teachers can offer their students the ability to personalize their homework experience – enabling each student to select an assignment that aligns best with both his or her learning style and skill level. By creating a menu of multi-level options for any given lesson, educators have enhanced opportunities for meaningful engagement in differentiated instruction.
• Through homework tiers, educational institutions can provide students with access to differentiated learning experiences. With this strategy, there is an opportunity for a comprehensive range of questions that reflect the various abilities and aptitudes in their class; from straightforward recall tasks up to thought-provoking problems requiring profound application or analysis skills.
• Help your students reach maximum success through custom-crafted Homework Contracts! These agreements provide an individualized map of what is necessary to complete each assignment, outlining the time and effort required while setting appropriate learning objectives. Facilitate engagement and achievement as you guide them along their educational journey.

Here are some differentiated homework tips.

14. Open-Ended Questions

By posing thought provoking inquiries, students can actively engage in creative and critical thinking activities that expand beyond surface level comprehension of a concept. Inviting them to evaluate, analyze or compare concepts allows for more meaningful learning experiences than simple one-word answers allow.

• In the classroom, students are encouraged to consider what might have been if alternate choices had shaped a prominent moment in history. Imagining this ‘what-if’ potential provides valuable insight into how decisions and actions can shape our world.
• Engage your students in critical thinking and collaboration with an activity involving Think-Pair-Share. Pose a thought provoking question to the class, then have them pair up to explore their individual perspectives before presenting their ideas as part of a larger group discussion.
• Unlock the power of meaningful discussion through online forums! Offer an opportunity for your students to provide their perspectives on a given topic, and discover new ideas that may not have been explored in the classroom. Fostering effective dialogue can open up paths of learning beyond what traditional methods offer.
• Engage students in the art of discussion! Stimulate their minds with a thought-provoking Socratic Seminar – requiring them to apply critical thinking and analytical skills. Encourage open-ended debates about relevant topics, challenging them to explore new perspectives.

In the video below you’ll learn what an Open Ended Question is how you can help children think through problems on their own.

15. Formative Assessment

As an educator, the ability to assess your students’ understanding of a concept in real-time helps shape effective teaching methods. Formative assessment gives instructors versatile tools – such as quizzes, exit tickets and classroom discussion – so that instructional strategies can be tailored to meet student needs on their learning journey.

• With strategic quizzes and brief writings, teachers can unlock insight into the comprehension levels of their students on various topics. This helps shape tailored guidance for each student to maximize growth potential!
• Enable your students to gain knowledge by creating an environment where they can express their understanding of the day’s material with Exit Tickets. These short assessments foster a feedback loop between teacher and student, empowering educators to adjust teaching plans according to individual class needs.
• Engage your students and measure their comprehension with interactive quizzes! Give formative feedback within the lesson period while providing students a direct look at how they’re performing. Put knowledge to work right away, in real time!
• Gather insight into each student’s learning during one-on-one conferences, allowing for the exchange of meaningful questions and individualized feedback. Gain a full picture of how your students are assimilating course material with tailored conversations.

In this video, a teaching team demonstrates how they use formative assessment with students in the classroom to make adjustments and respond to student learning and understanding.

3 More Examples of Differentiated Instructions

Differentiated instruction is an effective way to optimize learning in the classroom and ensure that each individual’s distinct needs are met. To see just how it works, check out these three videos for practical strategies on adapting your teaching style!

1. Differentiation Within the Inclusion Classroom Model

Through a co-teaching model specially designed for students with mild to moderate special education needs, teachers are able to use an inclusive approach while providing differentiated instruction. A collaborative planning process and assessments of student readiness ensure that all learners can take the reins on their learning journey.

2. Differentiating Instruction to Reach All Students

Through their differentiated approach to instruction, this first-grade classroom creates an engaging learning experience for students. They provide a flexible environment in which each student is given the freedom to learn based on individual needs and preferences through rotating station activities that include computer time, sorting tasks and teacher support. With tailored lessons to meet personal goals set at every level of mastery, students are both successful and motivated by the results of differentiation!

3. Differentiating Instruction Through Interactive Games

In this video, the teacher shares his innovative approach to teaching. Through using Planet Turtle for math instruction and providing students with multiple tools like whiteboards and fingers, he ensures that each student can find the method best suited to their individual needs. This tech-savvy educator emphasizes how computers should only supplement strategies already in use rather than making technology a sole resource.

Keep Learning

Teachers can now easily become experts in differentiated instruction with the help of various online resources. To make it simpler, here are our top 3 recommendations to get you started!

• Edutopia is an invaluable resource for teachers, offering valuable insight and strategies to help differentiate instruction in the classroom. With a variety of articles, videos, and lesson plans available among other engaging resources, it’s no wonder why this website has become such an essential part of many classrooms! 
• Teaching Channel is a comprehensive platform that offers teachers an opportunity to gain insight into various teaching strategies. Through their innovative “Differentiated Instruction” section, educators can learn from experienced peers and tap into inspiring discussions about how to implement the best practices in their classrooms.
• ASCD empowers educators with a wealth of resources to improve student success. Their selection includes books, articles and online courses in the differentiated instruction strategies list ranging from strategies to implementation tips and assessment methods – all designed to make teachers more effective!

Teachers have access to a comprehensive range of resources that share actionable strategies on how best to implement differentiated instruction in the classroom. Taking advantage of these invaluable tools serves as an ideal opportunity for teachers to continue developing their practice, ultimately resulting in positive outcomes and success for students.

Using differentiated instruction strategies, teachers can create an engaging learning experience and give students the opportunity to fulfill their academic potential. Through thoughtful planning, implementation of diverse strategies, and access to resources that support individual needs, educators are well-equipped with the tools necessary for success in fostering student achievement. Ultimately enabling learners to reach heights they never thought possible!

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Simona Johnes is the visionary being the creation of our project. Johnes spent much of her career in the classroom working with students. And, after many years in the classroom, Johnes became a principal.

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