I have to say that this result is wildly different from my experience and that of my children. It's boring to sit in class redoing a simple math problem just because someone wants to detrack math. A friend of mine who is a teacher says that he has MORE discipline problems from the smart kids who aren't challenged enough. The real secret should be to embrace independent, computer-mediated systems like Khan Academy. Ev…
First, they cherry-picked studies. Second, the few studies they referenced addressed overall school performance, not performance of the gifted students.
A perfectly valid way of reading this article is: gifted kids in de-tracked schools do the teachers' jobs for them by helping out the slower kids, which results in better school performance.