The problem with streaming is that it is always tempting to put the best teachers in the more academically inclined classes because that is where they get the m

The problem with streaming is that it is always tempting to put the best teachers in the more academically inclined classes because that is where they get the most visible effect. But of course it should be the other way about, the very best teachers should ve assigned to the students who find the whole affair the most difficult. The best students can often just be given an assignment and told to get on with it.