Is your concern that he already knows too much of the 7th-8th curriculum to make that feasible?
For whatever it is worth, the pacing sounds far better in a compacted course like that-- maybe even better than "higher level" math. If your school's accelerated mathematics options include this kind of compacting in coursework, that's a great thing.
I'd let him show them what he can do with Khan, myself. They'll probably believe that a lot more than anything you bring to them at this point.
They called back, and put my son on speaker. They presented it to him, and stressed that it will be paced at his level. His response was "that's perfect" (they said he's wearing a big smile).
I just googled Khan, and one of the first links was a Washington Post critical critique of its math videos. Just great. Educators are saying it doesn't teach or anticipate cofusion or student misconceptions. If my son's school isn't aware of Khan's flaws, and set him up once a week to do Khan as though it's a magical computer gateway, I think that's misleading.
On the upside, my son may get excited about mathematics again. He has seemed jaded and disappointed for so long.
