When I was growing up you were bumped up still (to stay with age group), but you took basic courses until you were back up to speed, then you were moved to stan

When I was growing up you were bumped up still (to stay with age group), but you took basic courses until you were back up to speed, then you were moved to standard, then advanced, then AP. I sucked at AP, but standard / advanced were good. The AP kids must have studied so hard - I bombed those classes when I tried them. But that also was seen as discriminatory I think because it wasn't that easy to move out of basic etc once you were there so I think they stopped this as well - I think system was called tracking.