Dylan Wiliam Profile
Dylan Wiliam

@dylanwiliam

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

Starke (FL)
Joined January 2009
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@dylanwiliam
Dylan Wiliam
20 hours
Note: this study used a "wait-list" control—half the schools implemented the program in 2016, and half in 2017—so supports causal inferences.
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@EducationNext
Education Next
20 hours
College Counseling in the Classroom: A low-cost approach improves postsecondary planning and outcomes.
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@dylanwiliam
Dylan Wiliam
20 hours
RT @Doug_Lemov: This is a "logical" but profoundly erroneous take. Children learn to speak relatively naturally because as a species we….
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@dylanwiliam
Dylan Wiliam
2 days
The Embedding Formative Assessment programme is one of only 8 included in the @EducEndowFoundn's list of "promising programmes" and I think the only one that is designed for whole-school implementation in either primary or secondary schools.
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@dylanwiliam
Dylan Wiliam
2 days
In England, 345 secondary schools have already taken advantage of the huge subsidy provided by @educationgovuk's Accelerator Fund to participate in the @ssat's Embedding Formative Assessment programme. The scheme ends forever on Friday:
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@dylanwiliam
Dylan Wiliam
2 days
RT @teacherhead: @MrColesDrama Hang in there George. You’re doing the most important work and the snipers couldn’t do what you do. You’ve g….
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@dylanwiliam
Dylan Wiliam
3 days
Creativity tasks typically activate a range of brain locations in a common circuit. Damage to this circuit (by lesions, by disease) both decreases and increases creativity, suggesting that creativity sometimes involves silencing self-censoring judgments:
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@dylanwiliam
Dylan Wiliam
3 days
RT @turminder_xuss: @dylanwiliam @TIMSSandPIRLS What a surprise! Amazing a "research" study was needed to conclude this!.
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@dylanwiliam
Dylan Wiliam
3 days
RT @DTWillingham: "Our results suggest that word reading and spelling are one and the same, almost, but that spoken vocabulary knowledge is….
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@dylanwiliam
Dylan Wiliam
4 days
RT @greg_ashman: NEW FREE POST Why can’t education be a good thing?.A strange and disturbing insight .cc @P_A_Kirschner @dylanwiliam .⬇️ ht….
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@dylanwiliam
Dylan Wiliam
4 days
An analysis of the 2003 and 2007 @TIMSSandPIRLS mathematics surveys concludes "better achievement was associated with more teacher-led instruction, less connection to students’ daily lives, and—in particular—more memorizing of formulas and procedure":.
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@dylanwiliam
Dylan Wiliam
4 days
RT @researchED_US: Talk about modesty. @PatriceBain1 is not ATTENDING the researchED/DMNS conference. She and @AmberBHaven are KEYNOTING….
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@dylanwiliam
Dylan Wiliam
4 days
An analysis of data from the 2019 @TIMSSandPIRLS survey finds that what the authors call "formative instructional practices" do positively impact mathematics achievement and attitudes, but effects are weak, and—frankly—the data are all over the place: ($).
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@dylanwiliam
Dylan Wiliam
4 days
Most people use 2 letters to abbreviate the days of the working week (M/Tu/W/Th/F) though Hugh Burkhardt at Nottingham University used θ (theta) which I thought was neat. But I've just seen that holding down the T key on a Mac gives you þ (thorn) so I'm going to start using that.
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@dylanwiliam
Dylan Wiliam
4 days
RT @P_A_Kirschner: Our new book, Instructional Illusions, is available on Aug 29 (Europe) and Sept 12 (US). This is what John Sweller had t….
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@dylanwiliam
Dylan Wiliam
5 days
RT @olicav: @teacherhead is magnificent in surveying the practical wisdom of Rosenshine's Principles: common sense not commonly applied.….
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@dylanwiliam
Dylan Wiliam
5 days
RT @C_Hendrick: New study: A single 10-minute retrieval practice activity significantly improved final exam performance compared to a revie….
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@dylanwiliam
Dylan Wiliam
5 days
In England, a change in a school's rating (and especially the leadership rating) following an (Ofsted) inspection substantially affects wages and departures for heads (but not for teachers) when compared with schools with no change:
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@dylanwiliam
Dylan Wiliam
5 days
In 1972, the school leaving age in England was raised from 15 to 16: students born on September 1st could leave at age 15, while those born a day earlier had to wait a year. The children of those forced to do an extra year got higher test scores at age 11:
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@dylanwiliam
Dylan Wiliam
5 days
HT to @mrbartonmaths for this one.
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@dylanwiliam
Dylan Wiliam
5 days
RT @SGorard: New chapters out.Gorard, S. and Chen, W. (2025) What is the evidence on research-informed education?, Chapter 2, pp.55-76 in W….
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