David Didau

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So far David Didau has created 931 blog entries.

Put down your crystal balls

2017-07-04T09:32:36+01:00July 3rd, 2017|assessment, leadership|

Many of the schools I visit and work with feel under enormous pressure to predict what their students are likely to achieve in their next set of GCSEs. In the past, this approach sort of made sense. Of course there was always a margin for error, but most experienced teachers just knew what a C grade looked like in their subject. Also, when at least half of students' results were based on 'banked' modular results, the pressure to predict became ever more enticing. Sadly, the certainties we may have relied on have gone. Not only have Ofqual have worked hard to [...]

Whatever the question is, intelligence is the answer

2017-06-26T07:55:06+01:00June 25th, 2017|Featured|

Here are the slides I used in the talk I gave at this year's Education Festival: Whatever the question is, intelligence is the answer from David Didau The antipathy of very many otherwise sensible people to the concept of intelligence is really quite remarkable. This aversion seems only to be increased by bringing up the subject of IQ tests. The idea that IQ tests are only useful for showing how good some people are at taking IQ tests is a deeply ignorant view based upon a breathtaking piece of intellectual dishonesty. It's difficult to believe that people like Professor Guy Claxton [...]

‘Understanding’ and Occam’s razor

2024-11-18T19:08:41+00:00June 24th, 2017|learning|

At the beginning of the 20th century, physicists Hendrik Lorentz and Albert Einstein both concluded independently that measurements of light speed would be the same for all observers. But while both arrived at the same results from their equations, Lorentz’s explanation relied on changes that take place in ‘the ether’. Because Einstein's paper On the Electrodynamics of Moving Bodies made no reference to a mysterious, undetectable substance, his explanation was accepted as being the most likely. Even after Einstein's theory of special relativity had been accepted, Lorentz wasn't willing to let go of his belief in 'luminiferous aether'. In 1909 he wrote, [...]

A Novice→Expert Model of Learning

2018-01-07T15:09:36+00:00June 21st, 2017|learning|

Every artist was first an amateur. Ralph Waldo Emerson One of the best understood principles of cognitive psychology is that novices learn and think differently to experts. These labels are domain-specific, not person-specific; I can be an expert at particle physics whilst still being a novice at evolutionary biology. Or skateboarding. Similarly, you could be an expert skateboarder whilst knowing little of nothing about theatre design or ancient Tibetan languages. What this means is that we're all novices at something, and many of us will be experts in at least one domain. To demonstrate how you think differently as an expert [...]

How helpful is Hattie & Donoghue’s model of learning? Part 2: The meta analyses

2017-06-18T12:09:33+01:00June 18th, 2017|learning|

To help us better understand how we learn, John Hattie & Gregory Donoghue propose a new conceptual model of learning. I've already written about my concerns with the metaphor of depth in Part 1. In this post I want to explore what his meta analyses reveal about the best approaches to take with students at different stages in the journey from novice to expert. Inputs The first layer of Hattie & Donoghue's model is termed 'inputs' or, what children bring to the process of learning. These are grouped into three areas dubbed skill, will and thrill. The most important individual differences between students [...]

How helpful is Hattie & Donoghue’s model of learning? Part 1: The problem with depth

2020-07-01T20:49:37+01:00June 17th, 2017|learning|

I saw John Hattie speak recently at a conference on his latest re-imagining of his Visible Learning work. He was an excellent speaker and charming company. I was particularly flattered that he asked me to sign his copy of my What if... book. After he'd finished his presentation he asked me what I thought and I said I'd have to go away and have a think. This is an attempt to tease out a response. Broadly, I found myself in agreement. Hattie makes the astute point that the 400 learning strategies identified in his most recent meta analysis cannot be directly compared; [...]

The secret of successful schools: the Anna Karenina Principle

2017-06-14T07:12:21+01:00June 14th, 2017|leadership|

For men are good in but one way, but bad in many. Aristotle Tolstoy's great novel, Anna Karenina, opens with the famous line, "All happy families are alike; each unhappy family is unhappy in its own way." Tolstoy's point is that a happy marriage depends on a long lists of variables: mutual attraction, agreement about finances, parenting, religion, in-laws and many other crucial respects. You might have everything else in your favour, but if any one of these vital ingredients is missing, or out of kilter, happiness is doomed. This is the Anna Karenina Principle: A deficiency in any one of a [...]

Ability is the consequence not the cause of what children learn

2021-05-11T23:37:59+01:00June 13th, 2017|Featured|

The evidence on ability grouping appears relatively well-known. The EEF Toolkit summarise the research findings thus: Overall, setting or streaming appears to benefit higher attaining pupils and be detrimental to the learning of mid-range and lower attaining learners. On average, it does not appear to be an effective strategy for raising the attainment of disadvantaged pupils, who are more likely to be assigned to lower groups. It appears that children who are deemed to be 'low ability' fall behind pupils with equivalent prior attainment at the rate of 1-2 months per year when placed in ability groups. Conversely, high attainers make, [...]

My idea for making science a more fundamental part of culture and society

2018-07-23T09:12:59+01:00June 2nd, 2017|Featured|

I've been asked to contribute an idea to the British Science Association's campaign, Science: not just for scientists. Their aim is to compile "100 ideas to make science a more fundamental part of culture and society". My idea, if you're interested, is falsifiability. If you want to vote for my idea, or any other, you can do so here. The importance of being wrong What I love about science is that it’s not an attempt to prove ideas to be right; instead it’s all about testing theories to destruction in the hope of finding them to be wrong. This is a lesson [...]

How not to disagree: Swearing & insults

2017-05-30T22:08:41+01:00May 30th, 2017|Featured|

If you don't like swearing this post's probably not for you. I'm a big fan of profanity and, much to the chagrin of my family, I swear immoderately. There are times when nothing else quite expresses the depth of one's feelings or conveys a point with suitable emphasis. I enjoy the judicious use of most swear words and, suitably combined, they can even achieve a certain caustic beauty. Back in the mists of time when I taught EFL, one of my students' favourite lessons was on the uses of 'fuck' as a phrasal verb. It really has quite remarkably varied utility. But despite [...]

What does the Theory of Multiple Intelligences tell us about how to teach?

2020-05-15T13:12:01+01:00May 26th, 2017|psychology|

As I explained here, the scientific consensus is that intelligence is general. That is, if you are good at verbal comprehension, you'll also tend to be good perceptual organisation, and if you're good at maths, you're also likely to be good at English. This is counter-intuitive. Most people believe that mental abilities trade off against each other and the doing well in one area means doing poorly in another. Of course, this might be true for some people, but just because your mate John can barely count his own fingers but happens to be a literary genius, doesn't disprove the fact that [...]

Reframing the debate: It's not what you do, it's why you do it

2017-05-23T07:37:16+01:00May 23rd, 2017|Featured|

For the past few years I've regularly railed against anyone who claims that either there is no debate about the best way to teach, or that said debate isn't worth having because the vast majority of teachers either don't know there's a debate or don't care about it. While this may or may not be true, some of the people I've interacted with in this time have, like me, come to change their mind about how best to teach, and some have become ever more deeply entrenched in opposing schools of thought. Calling these schools of though 'traditional' and 'progressive' is probably [...]

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