Incoming Freshman at UIUC: What to do over the summer?

<p>I'm an accepted physics major (emphasis on engineering) at UIUC and I have a uh, unique situation I suppose you could say. I'm good at math and science but the problem is that my education has been screwed up a bit because last year I went to Austria on a foreign exchange. Whoever said math was an international langauge is an idiot and I basically learned nothing and forgot quite a bit. </p>

<p>So I don't go into this program totally unprepared, I am taking a precalc class at the local CC over the summer and possibly doing some other things. Any advice on what else I can do to patch this situation up? (And I hope this is the right forum for this sort of stuff)</p>

<p>Brush up on geometry. Most engineers I know that struggle do so because they don't have sufficient background in geometry.</p>