All the students are expected to spend the same amount of time sitting in a math class But why? This is a very dysfunctional way of allocating teaching time, e

All the students are expected to spend the same amount of time sitting in a math class But why? This is a very dysfunctional way of allocating teaching time, especially if the classes are not split along learning ability. What ages are we talking about here? At my school, we didn't even get subject-specific time slots until 13/14 years: before that, we all spent the same time in class but everyone worked on their own subject. The teacher's job was to make sure that every child spent time on each subject according to their needs, not according to alotted time. And after that, when we did get separate classes and separate teachers for the different subjects, only 70% of our school time was scheduled for the whole class; the other 30% was for teacher "open hours": the students were expected to fill that time according to their own needs.