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Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources als...

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 one man, Salman Khan, this 1600+ video library is the most-used educational video resource as measure...

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

Check your calculus homework! Enter your function to get your calculus derivative or integral with each step explained, automatically and fast.

YouTube is a place to discover, watch, upload and share videos.

Wolfram Library Archive has thousands of downloadable resources for Mathematica and other Wolfram products, collected over the full history of Wolfram Research

Mathwords home page

Symbolab: Equation Search engine - search the web for scientific content using text, equations and scientific/mathematical symbols

Coolmath has a ton of cool math games and puzzles, lots of really clear math lessons (arithmetic, fractions, decimals, algebra, etc.), fractals, geometry, tessellations and more. Tons of very cool math stuff for kids, teens, parents and teachers too!

Mesa Community College provides outstanding career, transfer, and service programs to the East Valley area of Phoenix, Arizona with over 200 programs and degrees.