The likelihood that K12 schools are near a known hazard differs substantially across states in ways that are not entirely driven by population density or site prevalence. This suggests an important role for local and state regulations in mitigating potential exposure. /5

Risks are borne disproportionately by Native, Black, Hispanic, and low-income students who are 124%, 86%, 43%, and 40% more likely to attend schools within a quarter mile of a hazardous site. Proximity to multiple hazards and higher-risk sites is also highly inequitable. /4

Proximity to known environmental hazards is nearly identical across public & private schools, possibly because the advantages in financial resources & siting flexibility private schools often enjoy are offset by their elevated presence in urban areas where hazard density is greatest. /3

A shocking 44% of all US K12 schools are located within a 1 mile distance from a known environmental hazard (Superfund, brownfield, or Toxic Release Inventory facility). Work by @claudiapersico.bsky.social & many others documents clear negative effects on health and learning at this distance. /2

The #SustainableED team's first publication is out in @pnas.org. We document the scale of potential pollutant & carcinogen exposure across US K12 schools. 8% of all schools are within a few blocks of EPA registered hazard sites. Exposure risk is highly inequitable. 🧵

Brown just opened a cluster hire for two tenure-track positions in Education Policy. Come join our vibrant community of scholars at @brownedudept.bsky.social & @annenberginstitute.bsky.social! apply.interfolio.com/190527 Please help spread the word.

I hope state & district leaders will find the guidance in @joshbleiberg.bsky.social & my policy brief helpful for minimizing the harm of teacher layoffs "The Inequitable Effects of Teacher Layoffs: What We Know and Can Do" @aefpweb.bsky.social @efpjournal.bsky.social direct.mit.edu/edfp/article...

5) Dynamic Effects This is a great example of how policy effects can be dynamic (e.g. on discipline) and why point-in-time evaluations can be misleading. This can be a major advantage of event studies with admin data over RCTs with costly original outcome data collection.

1) Policy Relevance It is such an amazing example of social science research that is timely and can directly inform policy and practice. We are in the midst of a major national reckoning about how to create schools that are environments where kids are engaged and socializing in healthy ways.

Brian Jacob gave a great presentation on the effect of schools adopting Yonder pouches to restrict cell phone use at #NBERSI2026. The paper has generated lots of 🔥 takes. I think it provides a window into the value & challenges of social science research. Full paper www.nber.org/papers/w35132

🚨 I'm hiring for a (Senior) Research Associate position to work with me on a broad research agenda focused on teacher labor markets. Great opportunity to be a part of the vibrant @annenberginstitute.bsky.social community of researchers at Brown University. Links in reply Please spread the word

What about programs that were larger but did not stray from best practices in an effort to serve more students on a fixed budget? The evidence is promising! Maintaining "high-dosage/high-impact" features partially inoculates programs from this attenuation at scale. 9/

We sought to refine our meta-analytic sample to have greater external validity for the large tutoring programs that districts and states have attempted to build post-COVID. Effects with stronger target-equivalence are 0.16 to 0.22 SD, relative to an overall pooled effect of 0.40 SD. 6/

And most RCTs focus on literacy in elementary schools where there are larger gains to be had by helping students learn the alphabet, phonics, and core preliteracy skills. 5/

Focusing on RCTs strengthens the internal validity of meta-analytic estimates, but does not automatically produce estimates that generalize to broader efforts to scale tutoring across grades and subjects. It turns out that most RCTs evaluate relatively small programs. 4/

Several prior meta-analyses had found pooled effect sizes of eye-popping 0.3-0.4 SDs. Pooling across multiple studies affords stronger external validity across variable contexts. But we made inferences about LARGE tutoring programs across MANY grades & subjects. 3/

🚨Our tutoring meta-analysis is now online at RER. @bethschueler.bsky.social, Grace Falken & I analyzed 263 RCTs. What we learned has important implications for the future of tutoring and the use of meta-analyses to inform policy. Open access: journals.sagepub.com/doi/10.3102/... 🧵

So excited to visit the University of Stavanger in Norway and present at the Synapse Lab tomorrow!

I would camp out overnight to buy a book-length sociological treatise about the broader influence of Bloom's 2-sigma paper on research, culture, education and technology. Someone please write this book!

In honor of teacher appreciation day, I want to highlight the large but often hidden impact that teachers have on students through their informal mentorship. Students who have a teacher as their primary mentor are substantially more likely to go to college. www.sciencedirect.com/science/arti...

One of my undergraduate RAs/advisees gave me the best thank you note a professor could ever ask for. This is the way.

What a privilege to be among the amazing artists, scientists, and scholars named as 2026 Guggenheim Fellows. Feeling inspired and extremely grateful for all the wonderful people in my life. @guggfellows.bsky.social www.gf.org/stories/anno... 1/2

So honored to be inducted as an AERA Fellow this morning. @aeraedresearch.bsky.social #AERA2026

Join me at @aeraedresearch.bsky.social #AERA2026 for an amazing panel on "Schooling in the Anthropocene: Research Perspectives and Policy Priorities" Today @ 4:15 to 5:45pm PDT Convention Center, Floor: Level Two, Room 306B I'll present our recent working paper: edworkingpapers.com/ai25-1238

A great read from @nymag.com about time in school. A few lines made me LOL! Determining which religious holidays to observe is challenging—but the bigger picture about how limited time in school affects student learning & working families cannot be ignored. nymag.com/intelligence...

When asked about AI and the future of K-12 teaching during a panel at #AEFP2026, I responded that I thought very little of what teachers do on a day-to-day basis *in classrooms* would change in the next 10 years. The reaction I got suggested this is a heterodox view. Am I wrong?

The #SustainableED team is finishing strong at @aefpweb.bsky.social with two presentations as part of a panel on "The Educational Impacts of Pollution" along w/ @joshua-goodman.com & others. Join us at 11:45 in St. Gallen 3. #AEFP2026 @edsustainable.bsky.social

Join us on Saturday morning for an amazing panel on Teacher Effectiveness. 10 am in Vevey 2 @aefpweb.bsky.social #AEFP2026 I'll be presenting our new working paper: edworkingpapers.com/ai26-1405

Hey @aefpweb.bsky.social friends, Come join the discussion on the future of the teaching profession today at 1 pm in Vevey 1. #AEFP2026 We've got an all-star panel w/ Ellen Goldring @cedr.bsky.social @drconstance.bsky.social Erika Hunt and @nctq.bsky.social's Hannah Putman

So excited for this @aefpweb.bsky.social session on the teacher pipeline @ 8:15 am on Friday in Vevey 2 w/ @carlyrobinson.bsky.social @susannaloeb.bsky.social @brendanbartanen.bsky.social Don't miss @drdsedwards.bsky.social presenting new work on CTE education courses. #AEFP2026 Join us!