You might also do a search on some of the folks who provide home schooling curriculum. A lot of excellent material is out there. My daughter is 9 and is doing some 6 & 7th grade level math. She is using the Critical Thinking Products (www.criticalthinking.com) for her math. Do not let the young kids on the web site sway your opinion; the products are first class.
From what I understand, Henty's books are good for history.
