Not free. Get the Art of Problem Solving's Introduction to Algebra book (and solutions manual). If she does well learning from books that's all she'll need. Have her take the on-line class if she does better with that sort of teaching.
They're very good, and just right for mathy kids. Look at their little quizzes and review to see what her level is. The Alcumus game they have there is quite interesting as well.
Similar for their Intro books for Geometry, Number Theory, and Counting & Probability. All excellent. Their intermediate series I have little experience with yet, but I can't see any reason that they shouldn't be as good.
Regards,
Jon
