How can you help when math traps your kids in its jaws and threatens to chew them up? Thanks to the Internet, you can “chat” with math people around the world.
Art of Problem Solving Forum: For middle school and older students. There are forums for classroom basics, but most of the AoPS forums focus on working through challenging problems and preparing for math contests.
Ask Dr. Math: Browse the archives of the Math Forum. If you can’t find what you are looking for, ask a new question by email.
Purplemath Forums: “Helping students gain understanding and self-confidence in algebra” and plenty of other high school math topics.
S.O.S. CyberBoard: A topical help forum for high school and college-level mathematics, engineering, computer science, and more.