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Saving the Bandwidth of IPv6 Networks Using the Fields of the Packet Header

Intelligent approach to network device migration planning towards software-defined ipv6 networks.

Internet and telecom service providers worldwide are facing financial sustainability issues in migrating their existing legacy IPv4 networking system due to backward compatibility issues with the latest generation networking paradigms viz. Internet protocol version 6 (IPv6) and software-defined networking (SDN). Bench marking of existing networking devices is required to identify their status whether the existing running devices are upgradable or need replacement to make them operable with SDN and IPv6 networking so that internet and telecom service providers can properly plan their network migration to optimize capital and operational expenditures for future sustainability. In this paper, we implement “adaptive neuro fuzzy inference system (ANFIS)”, a well-known intelligent approach for network device status identification to classify whether a network device is upgradable or requires replacement. Similarly, we establish a knowledge base (KB) system to store the information of device internetwork operating system (IoS)/firmware version, its SDN, and IPv6 support with end-of-life and end-of-support. For input to ANFIS, device performance metrics such as average CPU utilization, throughput, and memory capacity are retrieved and mapped with data from KB. We run the experiment with other well-known classification methods, for example, support vector machine (SVM), fine tree, and liner regression to compare performance results with ANFIS. The comparative results show that the ANFIS-based classification approach is more accurate and optimal than other methods. For service providers with a large number of network devices, this approach assists them to properly classify the device and make a decision for the smooth transitioning to SDN-enabled IPv6 networks.

Performance Comparison of OSPFV3 and EIGRP with IPv6 Network

A collection of interconnected devices that deal with communication protocols that are common to share resources provided by nodes of a network over digital interconnections is a computer network. The process of determining the most efficient route from a source to a given target is called routing. Cisco's Enriched Internal Routing Gateway Protocol for IPv6 and the IETF's OSPFv3 (First Version 3 of Open Shortest Path) are two of the most frequently studied IPv6 routing protocols among researchers (EIGRPv6). As a result of the popularity of EIGRPv6 and OSPFv3, it is necessary to undertake a thorough contrast of the two protocols once working inside a minor enterprise network on IPv6. Thus, the study analysed the performance comparison of OSPFV3 and EIGRP with IPv6 networks with regards to convergence time, end-to-end delay, and packet loss. Packet Tracer 6.2.2 was used to compare the performance of routing protocols of different kinds. In the simulation, Cisco routers, switches, and generic computers were employed in the test. In these topologies, standard IPv6 addresses have been used. The findings of the study revealed that EIGRPv6 outperforms OSPFv3. As a result, we advocate using EIGRPv6 as an internal routing protocol in a network of IPv6.

Smurf as Spoof Type Attacking Activity on Network and Neutralization

Abstract Reliable and timely detection of cyberattacks is becoming indispensable for securing networks and systems. Internet Control Message Protocol (ICMP) flood attacks continue to be one of the most serious threats in both IPv4 and IPv6 networks. There are various types of cybersecurity attacks based on ICMP protocols. Many ICMP protocols are very similar, so security managers might think they might have the same impact on the victim’s computer systems or servers.

An Efficient Method to Enhance IP Telephony Performance in IPV6 Networks

Abstract IP telephony have played an essential role during the COVID 19 pandemic lockdown. One of the issues that lower the service level of the IP telephony solutions is the inefficient bandwidth exploitation. This paper proposes a Smallerize/Zeroize (SmlZr) method to enhance bandwidth exploitation. The SmlZr method is explicitly designed for the P2P IP telephony calls over IPv6 networks. The essence concept of the proposed method is to use the unnecessary fields in the header to keep the voice media of the packet. Doing so leads to smallerize or zeroize the packet payload and, thus, enhance the bandwidth exploitation. The SmlZr method has outperformed the RTP method for all the comparison parameters. For instance, the SmlZr method shrinks the bandwidth by 25% compared to the RTP protocol. Bandwidth saving is helpful for P2P IP telephony calls because it alleviates the traffic load. Thus, improve the call capacity boosts the call clarity.

Virtual Service Failure Recovery Algorithm Based on Particle Swarm in IPv6 Networks

Network resource backup algorithm based on multi-attribute analytic hierarchy process in ipv6 networks, zeroize: a new method to improve utilizing 5g networks when running voip over ipv6.

5G technology propagation curve is ascending rapidly. 5G will open up the horizon to improve the performance of many other IP-based services such as voice over IP (VoIP). VoIP is a worldwide technology that is expected to rule the telecommunication world in the near future. However, VoIP has expended a significant part of the 5G technology bandwidth with no valuable use owing to its lengthy packet header. This issue even worsens when VoIP works in IPv6 networks, where the wasted bandwidth and airtime may reach 85.7% of 5G networks. VoIP developers have exerted many efforts to tackle this snag. This study adds to these efforts by proposing a new method called Zeroize (zero sizes). The main idea of the Zeroize method is to use superfluous fields of the IPv6 protocol header to carry the digital voice data of the packet and, thus, reduce or zeroize the VoIP packet payload. Although simple, the Zeroize method achieves a considerable reduction of the wasted bandwidth of 5G networks, which also directly affects the consumed airtime. The performance analysis of the Zeroize method shows that the consumed bandwidth is saved by 20% with the G.723.1 codec. Thus, the Zeroize method is a promising solution to reduce the wasted bandwidth and airtime of 5G networks when running VoIP over IPv6.

Operational Security Considerations for IPv6 Networks

Empirical analysis of ipv4 and ipv6 networks through dual-stack sites.

IPv6 is the most recent version of the Internet Protocol (IP), which can solve the problem of IPv4 address exhaustion and allow the growth of the Internet (particularly in the era of the Internet of Things). IPv6 networks have been deployed for more than a decade, and the deployment is still growing every year. This empirical study was conducted from the perspective of end users to evaluate IPv6 and IPv4 performance by sending probing traffic to 1792 dual-stack sites around the world. Connectivity, packet loss, hop count, round-trip time (RTT), and throughput were used as performance metrics. The results show that, compared with IPv4, IPv6 has better connectivity, lower packet loss, and similar hop count. However, compared with IPv4, it has higher latency and lower throughput. We compared our results with previous studies conducted in 2004, 2007, and 2014 to investigate the improvement of IPv6 networks. The results of the past 16 years have shown that the connectivity of IPv6 has increased by 1–4%, and the IPv6 RTT (194.85 ms) has been greatly reduced, but it is still longer than IPv4 (163.72 ms). The throughput of IPv6 is still lower than that of IPv4.

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Computer Science > Networking and Internet Architecture

Title: rusty clusters dusting an ipv6 research foundation.

Abstract: The long-running IPv6 Hitlist service is an important foundation for IPv6 measurement studies. It helps to overcome infeasible, complete address space scans by collecting valuable, unbiased IPv6 address candidates and regularly testing their responsiveness. However, the Internet itself is a quickly changing ecosystem that can affect longrunning services, potentially inducing biases and obscurities into ongoing data collection means. Frequent analyses but also updates are necessary to enable a valuable service to the community. In this paper, we show that the existing hitlist is highly impacted by the Great Firewall of China, and we offer a cleaned view on the development of responsive addresses. While the accumulated input shows an increasing bias towards some networks, the cleaned set of responsive addresses is well distributed and shows a steady increase. Although it is a best practice to remove aliased prefixes from IPv6 hitlists, we show that this also removes major content delivery networks. More than 98% of all IPv6 addresses announced by Fastly were labeled as aliased and Cloudflare prefixes hosting more than 10M domains were excluded. Depending on the hitlist usage, e.g., higher layer protocol scans, inclusion of addresses from these providers can be valuable. Lastly, we evaluate different new address candidate sources, including target generation algorithms to improve the coverage of the current IPv6 Hitlist. We show that a combination of different methodologies is able to identify 5.6M new, responsive addresses. This accounts for an increase by 174% and combined with the current IPv6 Hitlist, we identify 8.8M responsive addresses.

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Researchers detect a new molecule in space

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New research from the group of MIT Professor Brett McGuire has revealed the presence of a previously unknown molecule in space. The team's open-access paper, “ Rotational Spectrum and First Interstellar Detection of 2-Methoxyethanol Using ALMA Observations of NGC 6334I ,” appears in April 12 issue of The Astrophysical Journal Letters .

Zachary T.P. Fried , a graduate student in the McGuire group and the lead author of the publication, worked to assemble a puzzle comprised of pieces collected from across the globe, extending beyond MIT to France, Florida, Virginia, and Copenhagen, to achieve this exciting discovery. 

“Our group tries to understand what molecules are present in regions of space where stars and solar systems will eventually take shape,” explains Fried. “This allows us to piece together how chemistry evolves alongside the process of star and planet formation. We do this by looking at the rotational spectra of molecules, the unique patterns of light they give off as they tumble end-over-end in space. These patterns are fingerprints (barcodes) for molecules. To detect new molecules in space, we first must have an idea of what molecule we want to look for, then we can record its spectrum in the lab here on Earth, and then finally we look for that spectrum in space using telescopes.”

Searching for molecules in space

The McGuire Group has recently begun to utilize machine learning to suggest good target molecules to search for. In 2023, one of these machine learning models suggested the researchers target a molecule known as 2-methoxyethanol. 

“There are a number of 'methoxy' molecules in space, like dimethyl ether, methoxymethanol, ethyl methyl ether, and methyl formate, but 2-methoxyethanol would be the largest and most complex ever seen,” says Fried. To detect this molecule using radiotelescope observations, the group first needed to measure and analyze its rotational spectrum on Earth. The researchers combined experiments from the University of Lille (Lille, France), the New College of Florida (Sarasota, Florida), and the McGuire lab at MIT to measure this spectrum over a broadband region of frequencies ranging from the microwave to sub-millimeter wave regimes (approximately 8 to 500 gigahertz). 

The data gleaned from these measurements permitted a search for the molecule using Atacama Large Millimeter/submillimeter Array (ALMA) observations toward two separate star-forming regions: NGC 6334I and IRAS 16293-2422B. Members of the McGuire group analyzed these telescope observations alongside researchers at the National Radio Astronomy Observatory (Charlottesville, Virginia) and the University of Copenhagen, Denmark. 

“Ultimately, we observed 25 rotational lines of 2-methoxyethanol that lined up with the molecular signal observed toward NGC 6334I (the barcode matched!), thus resulting in a secure detection of 2-methoxyethanol in this source,” says Fried. “This allowed us to then derive physical parameters of the molecule toward NGC 6334I, such as its abundance and excitation temperature. It also enabled an investigation of the possible chemical formation pathways from known interstellar precursors.”

Looking forward

Molecular discoveries like this one help the researchers to better understand the development of molecular complexity in space during the star formation process. 2-methoxyethanol, which contains 13 atoms, is quite large for interstellar standards — as of 2021, only six species larger than 13 atoms were detected outside the solar system , many by McGuire’s group, and all of them existing as ringed structures.  

“Continued observations of large molecules and subsequent derivations of their abundances allows us to advance our knowledge of how efficiently large molecules can form and by which specific reactions they may be produced,” says Fried. “Additionally, since we detected this molecule in NGC 6334I but not in IRAS 16293-2422B, we were presented with a unique opportunity to look into how the differing physical conditions of these two sources may be affecting the chemistry that can occur.”

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Venus exploration remains key to understanding exo-earths, says paper.

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NEW YORK, NY - JUNE 5: In this handout image provided by NASA, Liz Heller and Andriel Mesznik watch ... [+] the transit of Venus on June 5, 2012 in New York, New York. The Transit of Venus involves the planet Venus crossing in front of the sun. The next pair of events will not happen again until the year 2117 and 2125. (Photo by Bill Ingalls/NASA via Getty Images)

To paraphrase Winston Churchill, our sister planet Venus remains a riddle, wrapped in a mystery, inside an enigma. Remarkably similar in size, mass, and bulk makeup, today, Earth and Venus couldn't be more different. Earth is an ecological utopia while Venus is a poster child for planetary desolation.

The conventional view is that Venus simply formed too close to our evolving yellow dwarf star to maintain liquid water at its surface. But in the last few decades, that view has come to be seen as simplistic. That’s because this explanation fails to adequately answer why Venus came to have surface temperatures hot enough to melt lead and atmospheric surface pressures ninety times that of Earth.

Even so, the authors of a new paper being published today in the journal Nature Astronomy argue that Venus remains crucial to understanding earth-mass and earth-like planets circling other stars.

Venus represents an astrobiological cautionary tale. That’s because observations of terrestrial mass exoplanets that —- at first glance —- would appear to be habitable may simply be producing an abundance of abiotic oxygen. That is, oxygen that has nothing to do with life on the planets’ surfaces.

Venus. The planet Venus, the second planet from the Sun, has the longest rotation period (243 days) ... [+] of any planet in the Solar System. It orbits the Sun every 224.7 Earth days, making a Venusian year shorter than an Earth year. Artist NASA. (Photo by Heritage Space/Heritage Images/Getty Images)

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In the late 1970s, NASA’s Pioneer Venus orbiter mission detected evidence for the catastrophic outgassing of an ocean’s worth of water. The abiotic oxygen produced during this outgassing would have been readily visible to alien astronomers if they were looking our way. We can only speculate whether some other intelligent civilization at the time might have misinterpreted our own Venus as being habitable due to this putative abundance of abiotic oxygen.

Such scenarios only illustrate how difficult it is going to be to say with any certainty that a given exoplanet may harbor life.

Venus As Research Lab

We are extremely lucky to have Venus right next door; it's likely the only other large rocky world we will ever get to, Paul Byrne, a planetary scientist at Washington University in St. Louis, and the paper’s co-author, told me via email. Earth-size worlds in other planetary systems are light years away; we have no foreseeable means of reaching them, says Byrne.

In order to really understand how you obtain conditions which are suitable for life to form in the first place, you really need to understand the past the present and future of planets and how they evolve with time, Stephen Kane, the paper’s lead author and a planetary astrophysicist at the University of California, Riverside, told me via phone. That's why we argue that Venus is really the key to that because it shows an extremely different evolution from Earth, he says.

In contrast to Earth, Venus has a rotational period of 243 days. Its atmosphere is almost entirely Carbon Dioxide CO2 (with a small amount of nitrogen and trace abundances of other gases) such as sulfur dioxide, argon and water vapor, the authors write. Moreover, the planet is cloaked in a global layer of sulfuric acid clouds, they note.

Byrne points out that although Venus and Earth formed in the same manner as the other rocky planets in our solar system, it’s still a puzzle as to why they took such divergent evolutionary paths.

If you move a planet too close to the star, then it's going to lose the primary atmosphere that it formed with and it's going to create a secondary atmosphere, says Kane. But if it's too close to the star, the planet will also lose its secondary atmosphere, he says.

Illustration of NASA's Pioneer Venus Orbiter mission.

Kane says that one of the most interesting things about Earth is that it has had surface liquid water for about 4 billion years. This means that Earth has had to maintain a very narrow temperature range, which he calls “extraordinary.”

As For A Solar System Without A Venus Analog?

If we did not have Venus, you can only imagine what we would be inferring about the Earth size planet population that we're currently discovering around other stars, says Kane. That’s because our models would never predict Venus, he says.

Earth and Venus are the same size and the same mass, but on a planetary scale everything else about Venus is different, says Kane. The magnetic field is different, the rotation rate is different, and Venus doesn't have a moon, so its axial tilt is different, he says.

Kane is also puzzled by Venus’ slow rotation rate and how it’s changed over time.

With Venus, we now think that the atmosphere itself has slowed the planet down, says Kane. It’s been assumed that Venus always was a slow rotator, but we don't know that, he says. And we don't fully understand the effect that the change in Venus' rotation rate has had on its climate evolution, says Kane.

Is there hope of ever understanding our sister planet?

For a start, a fleet of spacecraft will investigate Venus over the next decade, says the European Space Agency. They include ESA’s Envision mission, NASA’s VERITAS orbiter and DAVINCI probe, and India’s Shukrayaan orbiter.

These upcoming missions represent the best next step in making Venus a research priority.

As we discover more and more Earth- size worlds orbiting other stars we'll need to figure out how to distinguish those that are like Venus from those that are like Earth, says Byrne. If it's solely based on distance to the host star, then distinguishing that will be straightforward, he says. But if it's more complicated, and Earth-like worlds can form and be stable closer in to their parent stars, then we're going to have to understand why Venus and Earth turned out so differently, Byrne notes.

But Was Venus Ever Earth-Like?

Whether the answer is yes or no, figuring out this mystery is going to be a big deal, says Byrne.

And it will help us better understand our own planet.

Figuring out when, why, and how Venus ended up different to Earth will tell us how Earth has managed to stay habitable for almost its entire lifetime, says Byrne.

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The U.S. labor market can affect ‘people who are not even here,’ research finds

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A recently published paper co-authored by Brian Cadena finds deep connections between the U.S. and Mexican economies

That the job market in Phoenix can affect a child’s education in Mexico may strain credulity, but it’s nevertheless true, according to a recent  paper co-authored by Brian Cadena , a University of Colorado Boulder associate professor of economics.  

People from specific regions in Mexico tend to migrate to specific regions in the United States, and when U.S. work dries up in some areas, those migrants tend to return to Mexico, Cadena and his co-authors, María Esther Caballero of American University and Brian K. Kovak of Carnegie Mellon, found.

Their paper, published in the Journal of International Economics in November, explores the U.S. labor market’s influence on the lives of people in Mexico by comparing how neighboring Mexican counties, or “municipios,” fared during the Great Recession.

Brian Cadena, a CU Boulder associate professor of economics, and his research colleagues explore the U.S. labor market’s influence on the lives of people in Mexico by comparing how neighboring Mexican counties fared during the Great Recession.

To perform their analysis, Cadena, Caballero and Kovak drew upon data from the Matrícula Consular de Alta Seguridad (MCAS), a governmental organization that issues identity cards to Mexican migrants.

Unlike either the U.S. or Mexican census, MCAS provides in-depth, granular information on migrant workers, specifying the municipios they leave and where in the United States they settle.

MCAS is a treasure trove, says Cadena. But it wasn’t long ago that researchers didn’t know how to use it. Cadena, Caballero and Kovak changed that with another paper they published in 2018, which validated the MCAS data and thereby opened up a whole range of potential research.

“This identity-card data really allowed us to drill down and make tight comparisons between municipios,” says Cadena.  

The strength of networks

A key finding that emerged from the MCAS data is that people from the same municipio often move to the same cities and states in the United States. “People follow their networks,” says Cadena. And these networks are so strong that migrants from nearby municipios often end up hundreds of miles apart in the States.

Migrants from the municipio of Dolores Hidalgo, for example, tend to move to Texas, while those from nearby Jaral del Progreso generally relocate to Chicago, California and the Southwest. Same region in Mexico, different time zones in the United States.

The close proximity of the municipios is important for the kind of research Cadena, Caballero and Kovak are doing, Cadena explains, because it cuts down on confounding variables. Neighboring municipios experience the same weather, suffer the same droughts, follow the same or similar laws, etc., which means differences in their economic outcomes are likely due to something they don’t share—the job market in the cities and states where their migrants moved.

To unearth these differences, Cadena, Caballero and Kovak measured the job-market losses in the U.S. regions linked to each municipio and then compared the economic outcomes in the municipios connected to harder-hit regions to those connected to softer-hit regions.

As it happens, labor demand in Texas survived the Great Recession relatively unscathed, so the municipios of the migrants who ventured there remained stable. The American Southwest, however, suffered some major blows, and so the municipios connected to that region exhibited several changes.

(Un)expected observations

Some of those changes were unsurprising, says Cadena.

“One of the things we’re finding is how connected these two economies are," says CU Boulder researcher Brian Cadena of the United States and Mexico. On the one hand, the stark differences in what someone can earn and what the labor market looks like in one country as opposed to the other suggests that we have made the separation between those countries real and meaningful. On the other hand, we are certainly not islands.”

“When work dried up, more immigrants returned to Mexico, and fewer new immigrants came from that source community.” This then led to a fall in remittances, or money transfers from migrant workers to their families back in Mexico.  

Yet Cadena, Caballero and Kovak also observed some changes they didn’t expect. One was that more women joined the Mexican workforce.

“This is called the added worker effect,” says Cadena. “When the primary earner of a household”—in this case, the migrant laborer—“loses their job, it’s a common reaction by the household to say, ‘Let’s send someone else to work.’”

Another unexpected change was a drop in school retention. “We found some suggestive evidence that a loss of jobs in the United States reduced investment in schooling in Mexico. We saw more schooling dropout, especially at transition ages, when kids move from one level of schooling to the next,” says Cadena.

Blurred lines and better choices

What do these findings suggest about the perceived separation between these two countries and their economies?

It makes that separation “a little fuzzier,” says Cadena.

“One of the things we’re finding is how connected these two economies are. On the one hand, the stark differences in what someone can earn and what the labor market looks like in one country as opposed to the other suggests that we have made the separation between those countries real and meaningful. On the other hand, we are certainly not islands.”

Realizing this, Cadena believes, could inform policymaking, specifically regarding immigration.

“When we’re thinking about immigration policy—when we’re thinking about all these things that affect the low-wage labor market—we are making policy that has a real and noticeable effect on the lives of people who are not even here,” he says.

“I’m not a politician, but I think that a more holistic sense of all the impacts of the choices we make as a country could help us make better choices.”

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Partisan divides over K-12 education in 8 charts

K-12 education is shaping up to be a key issue in the 2024 election cycle. Several prominent Republican leaders, including GOP presidential candidates, have sought to limit discussion of gender identity and race in schools , while the Biden administration has called for expanded protections for transgender students . The coronavirus pandemic also brought out partisan divides on many issues related to K-12 schools .

Today, the public is sharply divided along partisan lines on topics ranging from what should be taught in schools to how much influence parents should have over the curriculum. Here are eight charts that highlight partisan differences over K-12 education, based on recent surveys by Pew Research Center and external data.

Pew Research Center conducted this analysis to provide a snapshot of partisan divides in K-12 education in the run-up to the 2024 election. The analysis is based on data from various Center surveys and analyses conducted from 2021 to 2023, as well as survey data from Education Next, a research journal about education policy. Links to the methodology and questions for each survey or analysis can be found in the text of this analysis.

Most Democrats say K-12 schools are having a positive effect on the country , but a majority of Republicans say schools are having a negative effect, according to a Pew Research Center survey from October 2022. About seven-in-ten Democrats and Democratic-leaning independents (72%) said K-12 public schools were having a positive effect on the way things were going in the United States. About six-in-ten Republicans and GOP leaners (61%) said K-12 schools were having a negative effect.

About six-in-ten Democrats (62%) have a favorable opinion of the U.S. Department of Education , while a similar share of Republicans (65%) see it negatively, according to a March 2023 survey by the Center. Democrats and Republicans were more divided over the Department of Education than most of the other 15 federal departments and agencies the Center asked about.

In May 2023, after the survey was conducted, Republican lawmakers scrutinized the Department of Education’s priorities during a House Committee on Education and the Workforce hearing. The lawmakers pressed U.S. Secretary of Education Miguel Cardona on topics including transgender students’ participation in sports and how race-related concepts are taught in schools, while Democratic lawmakers focused on school shootings.

Partisan opinions of K-12 principals have become more divided. In a December 2021 Center survey, about three-quarters of Democrats (76%) expressed a great deal or fair amount of confidence in K-12 principals to act in the best interests of the public. A much smaller share of Republicans (52%) said the same. And nearly half of Republicans (47%) had not too much or no confidence at all in principals, compared with about a quarter of Democrats (24%).

This divide grew between April 2020 and December 2021. While confidence in K-12 principals declined significantly among people in both parties during that span, it fell by 27 percentage points among Republicans, compared with an 11-point decline among Democrats.

Democrats are much more likely than Republicans to say teachers’ unions are having a positive effect on schools. In a May 2022 survey by Education Next , 60% of Democrats said this, compared with 22% of Republicans. Meanwhile, 53% of Republicans and 17% of Democrats said that teachers’ unions were having a negative effect on schools. (In this survey, too, Democrats and Republicans include independents who lean toward each party.)

The 38-point difference between Democrats and Republicans on this question was the widest since Education Next first asked it in 2013. However, the gap has exceeded 30 points in four of the last five years for which data is available.

Republican and Democratic parents differ over how much influence they think governments, school boards and others should have on what K-12 schools teach. About half of Republican parents of K-12 students (52%) said in a fall 2022 Center survey that the federal government has too much influence on what their local public schools are teaching, compared with two-in-ten Democratic parents. Republican K-12 parents were also significantly more likely than their Democratic counterparts to say their state government (41% vs. 28%) and their local school board (30% vs. 17%) have too much influence.

On the other hand, more than four-in-ten Republican parents (44%) said parents themselves don’t have enough influence on what their local K-12 schools teach, compared with roughly a quarter of Democratic parents (23%). A larger share of Democratic parents – about a third (35%) – said teachers don’t have enough influence on what their local schools teach, compared with a quarter of Republican parents who held this view.

Republican and Democratic parents don’t agree on what their children should learn in school about certain topics. Take slavery, for example: While about nine-in-ten parents of K-12 students overall agreed in the fall 2022 survey that their children should learn about it in school, they differed by party over the specifics. About two-thirds of Republican K-12 parents said they would prefer that their children learn that slavery is part of American history but does not affect the position of Black people in American society today. On the other hand, 70% of Democratic parents said they would prefer for their children to learn that the legacy of slavery still affects the position of Black people in American society today.

Parents are also divided along partisan lines on the topics of gender identity, sex education and America’s position relative to other countries. Notably, 46% of Republican K-12 parents said their children should not learn about gender identity at all in school, compared with 28% of Democratic parents. Those shares were much larger than the shares of Republican and Democratic parents who said that their children should not learn about the other two topics in school.

Many Republican parents see a place for religion in public schools , whereas a majority of Democratic parents do not. About six-in-ten Republican parents of K-12 students (59%) said in the same survey that public school teachers should be allowed to lead students in Christian prayers, including 29% who said this should be the case even if prayers from other religions are not offered. In contrast, 63% of Democratic parents said that public school teachers should not be allowed to lead students in any type of prayers.

In June 2022, before the Center conducted the survey, the Supreme Court ruled in favor of a football coach at a public high school who had prayed with players at midfield after games. More recently, Texas lawmakers introduced several bills in the 2023 legislative session that would expand the role of religion in K-12 public schools in the state. Those proposals included a bill that would require the Ten Commandments to be displayed in every classroom, a bill that would allow schools to replace guidance counselors with chaplains, and a bill that would allow districts to mandate time during the school day for staff and students to pray and study religious materials.

Mentions of diversity, social-emotional learning and related topics in school mission statements are more common in Democratic areas than in Republican areas. K-12 mission statements from public schools in areas where the majority of residents voted Democratic in the 2020 general election are at least twice as likely as those in Republican-voting areas to include the words “diversity,” “equity” or “inclusion,” according to an April 2023 Pew Research Center analysis .

Also, about a third of mission statements in Democratic-voting areas (34%) use the word “social,” compared with a quarter of those in Republican-voting areas, and a similar gap exists for the word “emotional.” Like diversity, equity and inclusion, social-emotional learning is a contentious issue between Democrats and Republicans, even though most K-12 parents think it’s important for their children’s schools to teach these skills . Supporters argue that social-emotional learning helps address mental health needs and student well-being, but some critics consider it emotional manipulation and want it banned.

In contrast, there are broad similarities in school mission statements outside of these hot-button topics. Similar shares of mission statements in Democratic and Republican areas mention students’ future readiness, parent and community involvement, and providing a safe and healthy educational environment for students.

• Education & Politics
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Jenn Hatfield is a writer/editor at Pew Research Center

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