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Dylan Wiliam

@dylanwiliam.bsky.social
3.4K followers 3 following 43 posts

Teacher, researcher, writer, mostly interested in the power of education to transform lives and how to do it better.

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Dylan Wiliam @dylanwiliam.bsky.social · 12/02/2026
AERA's Classroom Assessment SIG has a podcast, one strand of which is a "Life and legacy" series in which those involved in classroom assessment sit down with Michael Holden and reflect on their careers. Here's my conversation: bit.ly/4cnKqK
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Episode 11: Life and Legacy with Dylan Wiliam | The Classroom Assessment Podcast
SIG member Michael Holden speaks with Dr. Dylan Wiliam, Emeritus Professor of Educational Assessment at University College London. They discuss Dr. Wiliam's early experiences with classroom assessment...
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Hardy Seifert @hardy-seifert.bsky.social · 09/01/2026
#BlueLZ Neuer Blog-Beitrag von @dylanwiliam.bsky.social: How do we prepare students for a world we cannot imagine? open.substack.com/pub/dylanwil...
open.substack.com
How do we prepare students for a world we cannot imagine?
This is the original text of a paper prepared for the 2011 Salzburg Seminar on Optimizing Talent: Closing Educational Gaps Worldwide, and published by Learning Sciences International in 2014.
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Cornelia Stenschke @supervisorin.bsky.social · 01/02/2026
#blueLZ #BayernEdu Cognitive Load Theory, Working Memory and What Teachers Can Control with @dylanwiliam.bsky.social
bamradionetwork.com
Cognitive Load Theory, Working Memory and What Teachers Can Control
Jon Harper with Dylan Wiliam
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Paul Kirschner @paulkirschner.bsky.social · 20/05/2025
Our article 'The role of knowledge-rich curricula in promoting deep thinking and complex skill acquisition' is online and free. #EduSky @danielmuijs.bsky.social @timsurma.bsky.social @dylanwiliam.bsky.social www.sciencedirect.com/science/arti...
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Benjamin Riley @benjaminjriley.bsky.social · 21/05/2025
AI influencers such as Ethan Mollick are already trumpeting the results of a poorly designed World Bank pilot study that employed AI with Nigerian students. This thread provides a fair and measured critique that's worth reading in full. Again I must ask: Why so many shady studies?
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Paul Kirschner @paulkirschner.bsky.social · 06/05/2025
Join the Bell Ringer Book Club about our book 'Developing Curriculum for Deep Thinking: The Knowledge Revival'. @timsurma.bsky.social @dylanwiliam.bsky.social #EduSky open.substack.com/pub/hollykor...
open.substack.com
Join the Bell Ringer Book Club
Summer readers are cool
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Corwin @corwinpress.bsky.social · 15/04/2025
In this top resource from March, John Hattie, @dylanwiliam.bsky.social, and Arran Hamilton show how de-implementation can cut ineffective initiatives and focus on what works. Learn how to improve outcomes while restoring balance in this free, on-demand webinar: www.corwin.com/free-...
corwin.com
Making Room for Impact
With teacher and leader workloads and burnout at an all-time high, it’s time for de-implementation: de-prioritizing and deleting the less effect...
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René Kneyber @rkneyber.bsky.social · 28/03/2025
We zijn nog altijd erg geïnspireerd door het werk van @dylanwiliam.bsky.social ! Samen met @dmasluijsmans.bsky.social vertaalde ik een overzicht van zijn vijf kernstrategieën van formatief handelen. Gratis te downloaden, en heel praktisch 👇 toetsrevolutie.nl/de-vijf-kern...
toetsrevolutie.nl
De vijf kernstrategieën van formatief handelen - Toetsrevolutie
Op basis van het werk van Dylan Wiliam en Siobhan Leahy over formatief handelen, verscheen er een gids met praktische technieken
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Dylan Wiliam @dylanwiliam.bsky.social · 20/03/2025
At researchED Scandinavia on March 15th, Kennet Fröjd hosted a panel discussion on #ArtificialIntelligence and education with Nidhi Sachdeva, Arnold Pears, Eva Hartell and me. You can listen to it on Spotify: lnkd.in/dg8iU6Ht and see it on YouTube: youtu.be/Iq9God1rjOs
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Andrew Ho @andrewdeanho.bsky.social · 19/03/2025
NAEP Law uses the phrase "valid and reliable" 8 times and references "professional testing standards" 7 times. We can't measure educational progress with a bendable yardstick. Let's get the expertise we need. www.nagb.gov/naep/the-nae...
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Dylan Wiliam @dylanwiliam.bsky.social · 09/03/2025
Quantitative evidence of the impact of teacher-student relationships on achievement is thin on the ground, so this paper on the positive benefits of "looping" (teaching the same class for more than one year) by matthewakraft.bsky.social and colleagues is important: bit.ly/4bBiBvD
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Second Time's the Charm? How Sustained Relationships from Repeat Student-Teacher Matches Build Academic and Behavioral Skills
We examine the dynamic nature of student-teacher match quality by studying the effect of having a teacher for more than one year. Using data from Tennessee and panel methods, we find that having a rep...
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Nidhi Sachdeva @nsachdeva.bsky.social · 06/03/2025
Share widely! @educhatter.bsky.social @rastokke.bsky.social @carlhendrick.substack.com @ehanford.bsky.social @j-metsala.bsky.social @mrzachg.bsky.social @steplab.bsky.social @tombennett71.bsky.social @jim-hewitt.bsky.social @mrsball.bsky.social @dylanwiliam.bsky.social
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Dylan Wiliam @dylanwiliam.bsky.social · 07/03/2025
Looking forward to learning a lot at the @learningandtheb conference in New York City next month: bit.ly/4ixCpSP
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Educational conference April 25-27, 2025: The Science of Learning
The Science of How We Learn
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Dylan Wiliam @dylanwiliam.bsky.social · 01/02/2025
Check out this amazing list of speakers at researchED Haninge in March: bit.ly/42F6hbk
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researchED Scandinavia 2025 | ResearchED
Speakers SO FAR Agneta Gulz Alva Appelgren Andreas Jemstedt Andrew Watson Arnold Pears Attila Szabo Ben Newmark Beth Grenville Giddings Bruce Robertson Cecilia Caiman Cecilia Kozma Daniel Muis Daniel ...
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Morgan Polikoff @mpolikoff.bsky.social · 23/01/2025
15 years ago I did the IES cluster-randomized trials training program at Northwestern--they're still offering it in 2025, and I highly encourage early-career researchers to join! steppcenter.northwestern.edu/education-tr...
steppcenter.northwestern.edu
Research Training Institute on Cluster-Randomized Trials: STEPP Center - Northwestern University
2025 Summer Research Training Institute on Cluster-Randomized Trials.
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Dylan Wiliam @dylanwiliam.bsky.social · 22/01/2025
Last night I had the pleasure of participating in a roundtable discussion about biologically primary and secondary knowledge and cognitive load theory, with David Geary, katejonesteach.bsky.social, and John Sweller, organized by Kennet Fröjd. You can hear it here: spoti.fi/3Wt8kvc
spoti.fi
Roundtable on Biologically Primary and Secondary Knowledge, and on Cognitive Load Theory with John Sweller, David Geary, Dylan Wiliam and Kate Jones
Fröjd’s toolbox · Episode
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Dylan Wiliam @dylanwiliam.bsky.social · 19/01/2025
A difference-in-difference analysis exploiting differences in the timing of charter school entry finds that a 10% increase in charter market share reduced the supply of traditionally-prepared teachers by 1% each year: bit.ly/3E1GPme ($)
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The effects of charter school entry on the supply of teachers from university-based education programs
Research on charter schools tends to focus on direct and immediate effects on student outcomes. However, there may be unintended indirect effects on, …
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Dylan Wiliam @dylanwiliam.bsky.social · 16/01/2025
Great to see that the scale-up of Embedding Formative Assessment seems to be making a difference in schools in England. The Behavioural Insights Team evaluation found that close to 95% of teachers surveyed were using strategies emphasized in the programme: bit.ly/3WIdwM7. Full report: bit.ly/3CcVlqM
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How can evidence-based education programmes be effectively scaled up in England? - BIT
BIT independently evaluated the scaling of a formative assessment programme, which generated insights our clients used to reach many more schools
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Dylan Wiliam @dylanwiliam.bsky.social · 15/01/2025
Full disclosure: I am on the project's Advisory Board in a voluntary capacity, and have no financial interest in Aristotal. I just think it's pretty amazing.
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Dylan Wiliam @dylanwiliam.bsky.social · 15/01/2025
For a while now, I have been convinced that one of the most effective uses of AI in education would be to provide personal, private, coaching for teachers. I thought it would take five years, but it seems that it is here, or at least very close, already: bit.ly/3PADiO8.
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Daniel Muijs @danielmuijs.bsky.social · 05/01/2025
It’s here! Our new open access book on curriculum written by Tim Surma, @paulkirschner.bsky.social, @dylanwiliam.bsky.social, @timsurma.bsky.social, Nuno Crato, Elizabeth Rata, John Hattie, Claudio Van Hees, Michiel Wils, Jasper Nijlunsing and me. Download it here: link.springer.com/book/10.1007...
link.springer.com
Developing Curriculum for Deep Thinking
This OA book proposes a way forward to effectively teach knowledge and complex cognitive skills in school and achieve equitable opportunities.
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Dylan Wiliam @dylanwiliam.bsky.social · 27/12/2024
Going through my Downloads folder I found a study by Babu and Mendro from 2003's AERA conference. They found that low achievers benefitted greatly from having more effective teachers for three years, but were less likely to get them:
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Dylan Wiliam @dylanwiliam.bsky.social · 26/12/2024
About 8 years ago, @siobhanleahy50 and I prepared a Quick Reference Guide for Embedding Formative Assessment. It's now out of print, so the copyright has reverted to us, and we are free to share it with anyone who wants it: bit.ly/EFAQRG (pdf).
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Dropbox
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Dylan Wiliam @dylanwiliam.bsky.social · 24/11/2024
More and more hotels in which I stay have refrigerators that charge you if you move an item. They usually offer an additional refrigerator if you want to keep something cold, so I have decided to ask for a refrigerator every time. If we all do this, they may change their stupid policies...
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Morgan Polikoff @mpolikoff.bsky.social · 21/11/2024
"If we had an extra week, we could all read Morgan Polikoff’s (2021) Beyond Standards to try to understand the problems caused in our decentralized system by the lack of high-quality curricula and what states might do to evaluate and recommend curriculum materials."
onlinelibrary.wiley.com
What Should Psychometricians Know about the History of Testing and Testing Policy?
In 2023, a National Council on Measurement in Education Presidential Task Force developed a consensus framework for foundational competencies in educational measurement to guide graduate programs and...
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Dylan Wiliam @dylanwiliam.bsky.social · 16/11/2024
"AI-generated poetry is indistinguishable from human-written poetry and is rated more favorably": go.nature.com/3O9RHAa Image
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Dylan Wiliam @dylanwiliam.bsky.social · 16/11/2024
It seems fair to say that most people in Europe find the result of the US presidential election completely incomprehensible. If you want to understand why it happened, as opposed to lamenting the electorate's decision, this piece by AEI's Rick Hess is a good place to start: t.co/ApyBIO6LMR
t.co
https://www.edweek.org/policy-politics/opinion-trumps-win-is-a-wake-up-call-for-educators-heres-why/2024/11
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Tim Fawns @timbocop.bsky.social · 13/11/2024
It's been a while since I posted a 10 minute chat on GenAI and am delighted to get back into it with a juicy one from @dylanwiliam.bsky.social.
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Dylan Wiliam @dylanwiliam.bsky.social · 13/11/2024
When I trained teachers, I wanted all my students to find their own personal style of teaching, but I also wished I had something that would give them a set of basic techniques to get started. In other words, something like @MrZachG's wonderful new book: amzn.to/3ARrzXH
amzn.to
Just Tell Them: The Power of Explanations and Explicit Teaching: Groshell Zach: 9781036003685: Amazon.com: Books
Just Tell Them: The Power of Explanations and Explicit Teaching [Groshell Zach] on Amazon.com. *FREE* shipping on qualifying offers. Just Tell Them: The Power of Explanations and Explicit Teaching
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Dylan Wiliam @dylanwiliam.bsky.social · 13/11/2024
Last week, I talked to @MonashUni's @timbocop for one of his "10 minute chats on Generative AI". You can hear the conversation here: bit.ly/4hJz0Rq
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Generative AI chats and webinars
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Dylan Wiliam @dylanwiliam.bsky.social · 10/11/2024
Analysis of 1,657 4th/5th grade lessons in 317 classrooms in 4 districts finds "students’ exposure to mathematical language varies substantially across lessons" and students make more progress in classrooms where teachers use more mathematical language: bit.ly/3AyE8aq
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A Quantitative Study of Mathematical Language in Upper Elementary Classrooms
This study provides the first large-scale quantitative exploration of mathematical language use in upper elementary U.S. classrooms. Our approach employs natural language processing techniques to desc...
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Manchester Communication Research School @mancomrs.bsky.social · 05/11/2024
It's here! We're so excited to share our latest podcast with none other than @dylanwiliam.bsky.social. Insightful, thought-provoking and inspirational. We are so grateful for Dylan for giving us his time and wisdom. We hope you enjoy it! susanfraser.podbean.com/e/talking-to...
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Dylan Wiliam @dylanwiliam.bsky.social · 29/10/2024
Researchers at Meta's Fundamental AI Research (FAIR) team have been working on "self-taught evaluators" that allow large language models to create their own training data: bit.ly/3Usc27i
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Self-Taught Evaluators
Model-based evaluation is at the heart of successful model development -- as a reward model for training, and as a replacement for human evaluation. To train such evaluators, the standard approach is ...
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
Nice counterbalanced study of 2nd graders learning 3 and 4 times tables comparing recitation and retrieval (with flash cards). Spoiler alert: retrieval is better: bit.ly/3A4qhIN
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
In 2020-21 Connecticut students enrolled in in-person sessions on ~50% of available days—less in schools serving disadvantaged students—so effects of in-person schooling are larger than previously estimated: bit.ly/3C2PsvR ($). ResearchGate link: bit.ly/4dYADaU
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
Just tracked down this, from Abraham Lincoln, in 1832:
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
"Can we trust the transcript?" by Joe Feldman makes important points about the inequitable nature of many school grading policies but unfortunately assumes teacher-assigned grades and test scores measure the same thing, which they don't—and shouldn't: bit.ly/3Yfqvok
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Can We Trust The Transcript? - Crescendo
New research reveals widespread inaccuracy in student grades. Discover how improved grading practices make grades more accurate and improve learning.
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
A meta-analysis of 28 studies on chatbot-assisted language learning found an average effect of 0.48 sd which is in line with other studies, but there is considerable heterogeneity in the results: bit.ly/4hj6m9B. ResearchGate link: bit.ly/3CdhSTG
bit.ly
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Dylan Wiliam @dylanwiliam.bsky.social · 28/10/2024
Phonological-only reading instruction works, but not as well as print-based approaches, is—unsurprisingly—more effective for phonological awareness than word reading and, again perhaps unsurprisingly, works less well in preschool: bit.ly/4ffN4AJ ($)
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Is Phonological-Only Instruction Helpful for Reading?: A Meta-Analysis
Phonological awareness (PA), the awareness of sounds in spoken words, is strongly linked to reading outcomes. However, there is an ongoing debate regarding the effectiveness of PA instruction witho...
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Dylan Wiliam @dylanwiliam.bsky.social · 15/09/2024
Ten years ago, Yiping Li and Glenda Lappan edited a collection on "Mathematics curriculum in school education". I'd forgotten I'd written an introduction to the section "Curriculum and student learning"—I hadn't even added it to my publication list—but you can now read it here: bit.ly/3TviTMG (pdf)
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 10/09/2024
I’m new to BSky so thought I’d introduce our work. In my lab at the University of Cambridge, we study the development of the #adolescent brain, cognition, social behaviour and mental health. You can find our papers, talks, interviews and more here: sites.google.com/site/blakemo...
sites.google.com
Blakemore Lab
The Developmental Cognitive Neuroscience Group is based at the Department of Psychology at the University of Cambridge, UK. Our research focuses on the development of social cognition, peer influence ...
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Tim Surma @timsurma.bsky.social · 09/09/2024
My first post on Bluesky! Proud to announce our forthcoming open access book coauthored by Claudio Vanhees, Michiel Wils, Jasper Nijlunsing, Nuno Crato, John Hattie, @danielmuijs.bsky.social, Elizabeth Rata, @dylanwiliam.bsky.social, and Paul A. Kirschner.
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Dylan Wiliam @dylanwiliam.bsky.social · 11/09/2024
I asked ChatGPT4o to give me the data from this graph in CSV format. It replied "It appears that the file you uploaded is an image. I cannot directly extract the numerical data (blue crosses) from the image alone." I asked the free version of ClaudeAI to do the same, and it gave me the data I wanted
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Daniel Muijs @danielmuijs.bsky.social · 06/09/2024
Coming soon: new publication on curriculum with Tim Surma, @paulkirschner.bsky.social, @dylanwiliam.bsky.social, Nuno Crato, Elizabeth Rata, John Hattie, Claudio Van Hees, Michiel Wils and me. It's going to be good 😉
Book cover that says: Developing curriculum for deep thinking. The knowledge revival.
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Dylan Wiliam @dylanwiliam.bsky.social · 06/09/2024
Giving professional translators access to LLMs substantially raised productivity and "for every 10x increase in model compute, tasks were completed tasks 12.3% quicker, received 0.18 s.d. higher grades, and earned 16.1% more per minute (including bonus payments)": bit.ly/3XjbGRj
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Scaling Laws for Economic Productivity: Experimental Evidence in...
This paper derives 'scaling laws' -- empirical relationships between the amount of training compute used for a Large Language Model (LLM) and its performance -- for economic outcomes. In a...
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Mike Hobbiss @mikehobbiss.bsky.social · 28/08/2024
We’ve known for a while that ‘brain training’ rarely leads to any transferable benefits in things beyond the trained task… but this new study takes it a step further and finds no neural (as well as behavioural) changes. ‘Brain training’ doesn’t even change the brain! www.nature.com/articles/s41...
nature.com
Boosting children’s cognitive control does not result in behavioral or neural changes - Nature Neuroscience
Cognitive control is crucial for present and future success and therefore is a frequent target of interventions. This study showed that training cognitive control in a large sample of 6–13-year-old ch...
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Roo Stenning @mrroobkk.bsky.social · 30/08/2024
#GeorgeBox @dylanwiliam.bsky.social
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Dylan Wiliam @dylanwiliam.bsky.social · 30/08/2024
I asked ChatGPT4o to represent the data in a table in the form of a bar chart. Here are the table and the chart:
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Dylan Wiliam @dylanwiliam.bsky.social · 28/08/2024
Delighted to announce that, after a 20 year absence, I shall be presenting at the 49th annual conference of the International Association for Educational Assessment in Philadelphia next month: lnkd.in/e_XCqT9b
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Dylan Wiliam @dylanwiliam.bsky.social · 21/08/2024
Earlier this month, I talked with Steph Seidel and Jen Rasmussen for their ChalkTalk podcast. You can listen to the conversation here: spotifyanchor-web.app.link/e/6pxGS7EscMb
spotifyanchor-web.app.link
The Bridge Between Teaching and Learning with Dylan Wiliam by Chalk Talk
Assessment guru Dylan Wiliam talks with us about expanding the definition of assessment and how to use the process of assessment to enhance student achievement and adult practices.
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