teach to the middle and have half the class incredibly frustrated.
So how does the rest of the world muddle through? Especially those with better outcomes internationally, the Asians, the Finns, the Belgians. UK is the only country that sets. How do they muddle through in Finland? Why in France 80% of population can pass Bac with Maths? What about Polish Matura? Are Brits exceptionally stupid?
What you do, Str1ngofhearts, is teaching to the top of the class and leaving half or, more likely two thirds, more frustrated, only it is a different half, and the consequences are totally different to the bottom third. They end up without good GCSE at all.
Everybody worries about the most able being frustrated... those poor things will be on top of the class in any set up. Why nobody worries about the middle and less able losing confidence? Why nobody worries huge chunk of average and low average DC, and those whose SEN were not met in Primary, lose their chances in life, don't get good GCSEs at all? They don't get to be taught the relevant material and you can see who that will be early in Primary. Why nobody sees a problem with that? What does it tell?
Why can't they remember timetables? Because nobody asked them to memorise. Rote learning is boooo. Homework is booo. But the rest of the world unashamedly memorises their timetables and therefore can retrieve facts to solve multiplication and division problems. Not failing on basic hurdle, they build confidence and depth of understanding.
Why can't we retain concepts? Because we jump piece meal from one topic to the other every two weeks. How do they build on the difficulty in other countries? They spend the whole year on timetables, multiplication and division, give and take. Why do all but the bottom 20% of the French get to Bac, but the Brits can't remember timetables?
The whole teaching methodology is assuming to serve the top third and to leave the bottom third behind. It was like this since 1870. Secondary education was supposed to be selective, for the most able, and it never was reformed since in terms of methodology and outcomes. It still assumes that failing the bottom 35% is fine. A natural thing.