Now that I think about it, I'm not really sure whether the kid would have to do the state standardized test if they were subject accelerated instead of grade accelerated. I'm not sure if the district reports to the state whether a child has been officially "subject accelerated" and is going to a different grade for math or reading. But either way it's a problem. Either the kid would have to test on material they learned a different year, or there might be "gaps" if there are units they end up missing. Therefore what we are left with is a one-size-fits-all curriculum and they run kids through like a factory.