- Polyhedra - A collection of polyhedrons.
- AAA Math – Useful website with online practice activities and games for K-8.
- Cool Math For Kids – Parents, teachers, and student sections utilizing games to help reinforce math concepts.
- Cut The Knot – Math puzzles and games.
- K12 Placement Tests – Excellent placement tests for K-12 to get a better idea of what level students are really at in math.
- Math.com – A good online math website with lessons, examples, and exercises.
- The Math Forum – Another great online website for teachers and students with the option of using a real math tudor to help with math problems.
- Math Is Fun – Math and logic puzzles with solutions.
- Math Playground – Brain teasers, math puzzles and games for elementary age school children.
- Purple Math – A good website for help with algebra problems to include lessons and worksheets.
- Practice Placement Test – Practice placement test for pre-algebra.
- The Ultimate Puzzle Site – Logic and math puzzles with solutions.