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106 Reviews by the community
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The most trustworthy online protection
Jan 24, 2011
Sal is amazing. I use it all the time!
Oct 26, 2010
This is a great site, I became an honors student in my algebra 2 class along with 1 other kid and I had 2 options, Get up 2 or so hours earlier for my teacher to how me how to do matrices, or learn from here. Great site, I highly recommend this site. Needs more problems to practice with though.
Sep 26, 2010
One of the five winners of the Google project http://www.project10tothe100.com/index.html. Highly recommended.
Sep 23, 2010
Best site on net that aggregates free higher education vids. All individually done by one man. Bravo, cannot recommend enough if you're struggling to learn a collegiate topic.
g
Jan 7, 2010
Just an incredible site
Jun 25, 2009
Very helpful site for all your math needs, best site ever!
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Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
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