Make them play the Khan Academy math exercise set from the beginning. That way, any gaps in their knowledge get filled in and they will be much less frustrated by encountering problems they don't have the tools for. If they get stuck, there's always a link to a helpful Khan video on the topic that the particular exercise is testing mastery in.
It's like playing a reasonably enjoyable, if a little tedious, puzzle game. As a side-effect of playing it they will just happen to learn all K through 12 math. I went through the whole thing when they had 280 exercises over the course of a month. It was a great review.
It's like playing a reasonably enjoyable, if a little tedious, puzzle game. As a side-effect of playing it they will just happen to learn all K through 12 math. I went through the whole thing when they had 280 exercises over the course of a month. It was a great review.
Here's a link: http://www.khanacademy.org/exercisedashboard