<p>I agree with IJustDrive re: AoPS. I think a few of the classes would still have the ability to stretch your ds. That really is the beauty of AoPS - to provide enough in-depth options so one is not maxed out by 9th or 10th grade. </p>
<p>Yes, four year colleges/universities are a possibility. We checked into them for my oldest. One class=$5,000. We waited until college before we paid those kinds of prices!</p>