DS7 has also been chafing at the super-simple science lessons that have only really begun this year (third). I've responded to that by getting him science stuff to work on at home. I guess in that instance I'm afterschooling, but there's no other option but to let the school slowly dull his interests.
With math, he shows the ability to do approximately a year's worth of normal skills learning in a month or less (not even studying every day either), learns concepts pretty much instantly or within minutes, and he does ask for it if I let it go for too long (which now it has been, by well over half a year since the last lesson). To let his skills go without use or development because the school isn't teaching him any math is doing him a disservice.
