Cool Math - math games, math puzzles, math lessons designed for kids and fun
Discovery Education - Math Homework Help - a resource provided by Discovery Education to provide mathematics homework help to students of all grades
Math & Science 2.0 - links to math and science sites from this IETC 2008 session
Math Forum at Drexel - a project of Drexel University, this site answers your frequently asked number conundrums and includes an archive organized by grade level and math topic
Mathwords - an interactive math dictionary with enough math words, math terms, math formulas, pictures, diagrams, tables, and examples to satisfy your inner math geek.
National Council of Teachers of Mathematics Family Resources - help your child learn math