Math: Breaking the rules?

Khan Academy

“With a library of over 2,400 videos covering everything from arithmetic to physics, finance, and history and 125 practice exercises, we’re on a mission to help you learn whatever you want, whenever you want, at your own pace.”

http://www.khanacademy.org/

Here’s the founder, Salman Khan talking on TED about the academy.

 

 

 

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