DD13 really wants extra material (math workbooks, science courses, book resources, writing lessons, history stuff; mainly math though) to do after school, on the weekends, or over the summer. Unfortunately, due to late gifted identification, she missed the opportunity to accelerate in math without missing algebra. So she will take that next year, but she already know s a lot. (She got a 660 on the math section of the SAT, if that helps). In fact, it's safe to say that she is years ahead in most subjects. So are their any online resources that she can use for learning on her own, for free? We are hoping that these are going to be on a high school level, so she can be challenged, probably algebra and geometry for math, biology and chemistry for science. (she really wants to take a free high-level biology course, and a chemistry one as well) Any suggestions? She really wants to avoid "babyish" stuff, btw.