Algebra-throw it at me-best curriculum, and why.

[Catherine]

I used Thinkwell Intermediate with the DVDs for my eldest, but am reconsidering for my second, who is very math intuitive and is only 12. I have Gelfand and will use it, here and there, but it's not a complete program-or is it? If you think so, tell me why.

I will teach this myself-used DVDs before as part of an online course but younger will not do this.

TIA!