I am working on a math teaching license. I took college math courses years ago, but I need courses to refresh my memory. If possible, I'd like to earn college credits for the studies, but I'm also willing to try some other paid classes that don't count towards credits, but which would help me to master the material. I'm trying to find a school that has a lot of math courses that can be taken in sequence. Courses like geometry, algebra, trigonometry, statistics, and calculus. The courses can be general or specific to majors, such as "Math for Teachers" or "Math for Engineers". I can only budget $300 per course.