I remember seeing an interesting study somewhere (sorry, don't have the link) that found that (IIRC in elementary school) segregating the better students did no

I remember seeing an interesting study somewhere (sorry, don't have the link) that found that (IIRC in elementary school) segregating the better students did not help them. It only made the poorer students perform worse. I think that there have been similar studies which show that elementary school is a very different animal from what we think (i.e. similar nonintuitive results) and that it needs some kind of restructuring.