[froh]

the solution actually is an inexpensive one: provide age appropriate self learning materials and make the teachers coaches in navigating those. Montessori schools work like that and we have a public school using that to accommodate both very quick and very slow learners and all those in between. the trick is that most students spend two years in that class, slow learners stay for three and the quick kids move on after just one year. individualized learning and mixed age groups. cheap and works like a charm.