cut the knot has a lot of different mathematical subjects to choose from.Theres a verity of topics that can be used for high school and college students. The materials contain movies that you can look at if your more of a visual learner.The text in the material is interactive, making it hands on for the student.The site contains math games and puzzles making it more fun to learn. The site also chronology updates so you can find out more info so it's more useful. This site provides good info to any person that finds math difficult to learn.
Time spent reviewing site:
40 minutes reviewing the site and i found out a lot of wide verities of textual material that can be of help.