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The Real Priority: Helping Every Teacher Improve

The Real Priority: Helping Every Teacher Improve

By Dylan Wiliam The Panorama program “Can I sack teacher?”(broadcast on BBC on July 5, 2010) made a big play out of the fact that only a handful of teachers have been struck off for incompetence. Doctors and lawyers are generally struck off for negligence, not lack of...

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Dr. Dylan Wiliam: Are Assessments Value-Laden?

Dr. Dylan Wiliam: Are Assessments Value-Laden?

By Dylan Wiliam Cherryholmes, Berlak, and others suggest that assessments are, inevitably, value-laden. Berlak says, “But as Cherryholmes argues, it is not only that subjective judgments are involved; it is also that constructs themselves are products of power and...

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More Questions From My Readers

More Questions From My Readers

By Dylan Wiliam If you missed last month's post, click here to see the first few questions I addressed. This month, I'll answer a few more questions that readers have sent me recently. Question 4 As a school administrator for more than 20 years now, I find it is...

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First Round of Questions From My Readers

First Round of Questions From My Readers

By Dylan Wiliam Question 1 I know you’re from the UK and have spent a lot of time in various countries overseas. Can you share a little bit about your experiences and key accomplishments in the United States? Answer 1 In 2003, I started working as Senior Research...

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Benjamin Bloom and the Two-Standard-Deviation Effect

Benjamin Bloom and the Two-Standard-Deviation Effect

By Dylan Wiliam In a 1984 paper, Benjamin Bloom reckoned that one-on-one tutorial instruction had an impact of two standard deviations on student achievement, but this claim is meaningless unless the sensitivity to instruction of the measure of achievement is...

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