We use Dreambox and the kids and I all love it. It instructs only when needed, it does unit pre tests and then you get to skip those sections. You can move ahead to the next grade in certain areas and not in others (if that is what is needed). There are enough games and fun visuals to keep it fresh and fun and enough practice problems to ensure a full grasp.

If your son loves to read, what about the Life of Fred books as well?

Mom to 3 gorgeous boys: Aiden (8), Nathan (7) and Dylan (4)