One of the “100 Most Influential People in the World” as named by “Time Magazine” this year is educating students at William Burnett Elementary School, even though they have never met him.Sal Khan is the voice behind Khan Academy, a free online tutoring site with a library of more than 3,200 video tutorials, interactive challenges and assessments available to anyone with a Gmail address from any computer with access to the web. Topics are virtually limitless; covering kindergarten - through 12th-grade math, science topics such as biology, chemistry and physics, finance and history, and the catalogue is growing on a daily basis.
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