this is really helpful, thank you! i have been feeling like i don't want to rush ahead when i don't feel like he has full competency but i also don't really think he needs to repeat all of Saxon 2. we have been doing some xtramath, but not daily, and some card games, flash cards, around-the-house math this summer ...
mathwonk, what is AoPS, and what about it would you recommend? i was an engineer by training and am not afraid of math, though i don't always feel like i'm a great teacher and don't always understand why the kids don't understand ... trying to include lots of different approaches so that one of them will "click!" :)