Dylan Wiliam Profile
Dylan Wiliam

@dylanwiliam

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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
5 hours
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
5 hours
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
5 hours
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
6 hours
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
13 hours
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
16 hours
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
1 day
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
1 day
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
2 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
2 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
2 days
HT to @mrbartonmaths for this one.
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@dylanwiliam
Dylan Wiliam
2 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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@dylanwiliam
Dylan Wiliam
2 days
Unlike some previous studies a study of 151 undergraduates, 169 parents, and 194 teachers found they generally assessed the value of different study strategies accurately, though highlighting and rereading were overrated, and interleaving was underrated:
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@dylanwiliam
Dylan Wiliam
2 days
RT @charlesmurray: How about if they give you a concussion? Asking for a friend.
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@dylanwiliam
Dylan Wiliam
2 days
RT @teacherhead: Brilliant hearing Valentina Devid and René Kneyber from @toetsrevolutie talking about Formative Action and @WALKTHRUs_5 at….
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@dylanwiliam
Dylan Wiliam
2 days
RT @emollick: Based on both the best available survey data from a few months ago, and the rate of internal AI adoption I am seeing at many….
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@dylanwiliam
Dylan Wiliam
2 days
RT @mrsparkstweets: @dylanwiliam @tes @AlexJQuigley The team @SnorklApp are doing a great job with this right now. Fantastic learning tool.
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@dylanwiliam
Dylan Wiliam
3 days
RT @rpondiscio: "Most non-educators—including parents, policymakers, and judges—think of 'curriculum' as a list of books that every child r….
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@dylanwiliam
Dylan Wiliam
4 days
Here's a study that backs up that claim, which I meant to discuss in my session at last week's Core Knowledge National Conference in Orlando, FL, but ran out of time.
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@dylanwiliam
Dylan Wiliam
4 days
An advantage of knowledge-rich curricula over skills-based ones that I haven't seen discussed much is with the former students can see they are making progress—they know things they formerly didn't. When students see they are making progress they are more likely to invest effort.
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