Are there any good online courses for Calculus I. Or maybe some VHS or DVD's I can buy that will basically give me what a first semester of what Calculus I would teach me? I want to take Calculus II. I already took and passed Calc I a few years ago. The problem is that I don't remember anything from Calc I. Also, I just barely passed Calc I and didn't understand it that much when I did take it. It would probably become a lot clearer to me if I took it over again. However, I don't want to take Calc I over again since I already received a passing grade and the Calc I classes are always full so they're hard to get into. So that's why I was thinking of some sort of video lesson. Any advice?