I do like the adage that, "There's nothing so practical as a good theory." In CPD, an insightful understanding that equips you to plan and understand what is going on, is much better than a bunch of lesson activities to try. And we don't learn items of knowledge in isolation. We learn by attaching new knowledge to concepts we already have. If that sounds simplistic, don't worry; it's meant to.
We have lived through a decade where a theory of learning and knowledge has been in vogue. And if you were to come up with a theory of how to teach spherical pupils in a vacuum, then it's a great theory. You break down the knowledge into carefully chosen chunks. You make sure that each chunk is carefully defined. You use regular low stakes recall to make sure that memorisation is happening over time. You make sure explanations take account of all possible misconceptions, with words and images carefully chosen to be clear rather than decorative or distracting. You deliberately contrast and discriminate between important concepts so they are not confused. You meticulously order the content of the curriculum so nothing is extraneous or redundant, and everything is consolidated and built upon. You make sure pupils can recite the best definition of a concept and can quote verbatim the best evidence.
Absolutely fantastic as a theory.
Where it falls down is the amount of effort it requires to make our pupils conform to being spherical and in a vacuum. Some of the measures are more reasonable than others. Spherical pupils have regulation haircuts, carry their bag in the correct hand, follow the text with a ruler, answer the teacher in well projected full sentences in standard English, keep eye contact with the teacher at all times, smile and say good morning when bidden, copy knowledge organisers respecting the exact format. Pupils in a vacuum walk along a painted line in silence between lessons, have their phones locked away or preferably do not have phones at all, cannot visit the shops on their way home, resist the "degenerate" culture of their milieu, are marked for their conversation on set topics at the table, are exposed only to the authorative voices of the "best". And are considered "novices" not yet capable of creativity, expression or original thought.
The sheer amount of effort put in to making pupils conform to being spherical and in a vacuum ought to tell us that the theory is great... as a theory.
In fact, on contact with real pupils, it turns out it may be a terrible theory. We know that the pupils who learn best are the pupils who think about what they are learning. The pupils who question what they are being told. The pupils who think of links, implications, associations, imaginative tangents. Pupils who know they have the agency to examine new knowledge in the light of what they already know. Pupils who reconsider their existing ideas in the light of new knowledge. Pupils who take risks and learn from their mistakes. Learning is an on-going process that they are in charge of. We know this is what our best learners do.
When I sit in a CPD session taking notes on what the important man is saying, I am not writing down what he says! I am writing down what the things he says make me think. Or what I think about the things he says. If he's lucky. I may be planning my lessons for tomorrow and trying to block out his predictable nonsense. And I am an excellent learner.
And we know that the pupils who struggle with learning are the ones who have been made to feel that they don't have that agency. Their thoughts were wrong. Their ideas were unwanted. Their associations and conceptualisations were invalid. Learning now consists of having to ingest more stuff and be tested on it. Real learning, in the areas where they have been made to feel like this, has almost stopped. The emotional link between getting a question right/wrong and being morally right/wrong is painful. They have been labelled as bad and their agency has been taken away.
Yes. All this is another theory or model. But it's also observed in the reality in the classroom. Which the knowledge theory tacitly acknowledges by its insistence on making all pupils spherical rather than individuals.
Having a theory that works fine for pupils who conform to how they "should" be rather than how they are, is harmful. It's the thoughts of "should, should, should" that have to be teased out and confronted once pupils' mental health starts to suffer.
Let's see if we can start to get to somewhere more positive and see how we can successfully bring the knowledge theory into contact with reality.
Writer and CPD expert Sue Cowley alerted me on bluesky to this example where Ofsted start from what they think is a logical chunking of the knowledge, rather than from an expert understanding of children and learning:
It reminded me of this Ofsted video:
The image illustrates their idea that knowledge preceeds skills. I can't think of a worse example. It immediately debunks their whole idea. Finding out what shapes fit where is a perfect example of where learning can happen through play... even maybe by... discovery. A child who arrives in a school setting without any knowledge of shapes, may lack the cultural capital of having played with a shape sorter. Not the cultural capital of having had direct instruction of what shape goes where.
In language learning, we have Scott Thornbury's idea of the omelette. (Make your own link to spherical chickens.) You do not teach someone how to make an omelette by chopping up a cold dead omelette and asking them to reassemble it. You make an omelette from raw ingredients. Stirring, adjusting the heat, paying close attention to what is happening in the pan.
It's the same for language-learning. To change metaphors again, we are helping pupils acquire their own snowball of French. With slow accretion, where more French sticks to what they already have, rolling from one topic to another getting bigger and bigger. We are not aiming for an even coverage, with everything planned out and programmed. A snowball will outlast the even coverage once the snow has all melted away.
The problem with the knowledge theory was the very first line in the description near the start of this post. Now you know why I put it in bold type. The very first step is a mistake: You break down the knowledge into carefully chosen chunks.
Chopping up the knowledge into logical chunks, is not the same as building up knowledge, concepts, skills. The process of building up the pupil's accretion of knowledge and skills is different to chopping up the knowledge.
A starfish when it regenerates does not necessarily regrow an arm. It could be that the arm regrows the starfish. When learners have a chunk of knowledge, but don't yet have the whole starfish, their brains still see how it can grow, what shapes it can take, what it can graft onto, how it can feed, move, reproduce. It's no good getting cross because they were meant to wait for when you thought they were ready for the next chunk to be attached to the first. If they did that, the first bit of starfish would be as dead as a cold omelette before they get your next bit.
Stop pulling apart dead starfish and posting them into children's brains like shape sorters. Start looking at what's growing. [Regretting this metaphor.] Instead of starting from pulling apart the knowledge, we should be looking at how learning happens, how learning grows organically.
This is what the Frameworks of Objectives did if you used it intelligently rather than as a tickbox. This is what APP did if you were allowed to use it intelligently rather than just for assessment. This may even be what David Didau did in English language, with a focus on skills broken down and built up.
In languages, breaking down the grammar does not reflect how pupils learn. Firstly, beginners make strong links between the French they are learning and the real world. Links within the language come much later. So when we teach pets, I know that j'ai, je n'ai pas, un, une and the rules for plurals, the phonics in oiseau or poisson are all going to be much more important than chien or chat. But the learners are focused on the meaning of the words. They will remember chien even though we never use it. But they will mix up je/j'ai lesson after lesson. We're not teaching from how the content "should" be broken down. We're working with what the pupils are learning.
I have fantastic ways of introducing the perfect tense in French. I can explain it formally, I can introduce it through cheats like j'ai décidé de, I can talk about fiancé meaning engaged, I can contrast mange/manger/mangé, I can physically get pupils to change the form... But as soon as pupils are let loose on their own writing, they are not thinking in the same way as someone who has a complete coherent picture of the grammar and wants to show it. They are concentrating on saying things they want to say. Not on the forms of the endings. As human beings, they are approaching language from a different angle. Their partial interlanguage is forming from raw ingredients, not from chopped up things I gave them.
Please do click on some of the links to see practical examples of me engaging with this in the classroom. It will probably make more sense than spherical chickens and snowballs and eggs.
Talking to pupils about their accretion of learning: https://whoteacheslanguages.blogspot.com/2026/02/reflecting-with-pupils-on-beliefs-about.html
Why meaning matters even in terms of "change in long term memory": https://whoteacheslanguages.blogspot.com/2025/12/what-do-we-mean-by-meaning-and-does-it.html
Here's a final positive message about how cognitive science does make total sense in the classroom:
If you are a teacher who wonders about the fact you seem to be trying things out, watching what happens, trying again... and you wonder if there's a theory that tells you what you SHOULD be doing. Well there is. It's called cognitive science or cognitive load theory. It tells you that pupils learn by thinking about what they are learning. It tells you that pupils learn by making links and networks of knowledge. It tells you that there's a sweetspot between making things engaging and making things distracting. There's a sweetspot between being challenging and being overwhelming. It doesn't tell you where that sweetspot is. It just tells you it's important. So what all of this is telling you is that you were doing the right thing all along. Teaching happens in the classroom with real children and a teacher who constantly monitors, adjusts and reflects.

