Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Despite being the work of o...

IMDb: The biggest, best, most award-winning movie site on the planet.

Hundreds of fun educational games and activities for kids to play online. Topics include math, geography, animals, and more.

Fact Monster is a free reference site for students, teachers, and parents. Get homework help and find facts on thousands of subjects, including sports...

Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions...

The goal of this free online learning center is to help high school students prepare for comprehensive exams in English, math, global history, U.S. hi...

Math practice tool for educators and families that adapts to a student

Math help since 1998. Math Goodies helps kids at all levels with interactive instruction and free resources. Get help online or offline.