This is probably the right solution. It seems in reality nobody does this since it is expensive (more teachers, real attention to students, etc). Also if there is an explicit split there will be groups of people who "game" it (spend disproportional amount of time to "train" their kids vs actual natural talent - not sure if this is good or bad).
So, it feels to me ideally within the same classroom there should be a natural way to work on your own pace at your own level. Is it possible? Have no idea - seems not, again primarily because it requires a completely different skillset and attention from teachers.
So, it feels to me ideally within the same classroom there should be a natural way to work on your own pace at your own level. Is it possible? Have no idea - seems not, again primarily because it requires a completely different skillset and attention from teachers.