<p>Thanks for the suggestions. He has used / is using the open courseware and enjoys it. I probably should have been more clear: he is looking for courses to take during his senior year in HS that he can actually get credit for. Not necessarily high school credit (or dual enrollment, which is a major pain at his HS), but credit that he can potentially use at whatever college he ends up attending (depending on their policies, naturally).</p>
<p>lisa - AoPS looks great. Unfortunately, courses only go through what he has already taken. I will look at it for younger D though!</p>
<p>ETA - EPGY looks like it has some great offerings. He had looked at CTY, which also has some good possibilities, but not this. Thanks for the link!</p>