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106 Reviews by the community
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Jan 24, 2011
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Sal is amazing. I use it all the time!
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15
Oct 26, 2010
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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.
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Sep 26, 2010
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One of the five winners of the Google project http://www.project10tothe100.com/index.html. Highly recommended.
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17
Sep 23, 2010
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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.
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12
Jan 7, 2010
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Just an incredible site
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17
Jun 25, 2009
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Very helpful site for all your math needs, best site ever!
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About this site

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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Child Safety
95
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