Monday, September 26, 2011

Video: How a math expert teaches history
[ Sat, 24 Sep 2011 19:53:51 GMT ]

Sal Khan, a math whiz with an encouragingly at-ease lecture style, explains how his online education classes will be able to branch out into subjects beyond his expertise. (msnbc.com)Sal Khan, a math whiz with an encouragingly at-ease lecture style, explains how his online education classes will be able to branch out into subjects beyond his expertise. (msnbc.com)


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