Letters To The Editor
Amazing Khan Academy
Salman Khan, a Bangladeshi living in the USA, was listed as one of the top 100 influential people in the world by Times magazine in April 2012. He began teaching his cousin mathematics using Yahoo's doodle notepad. When other relatives and friends sought similar help, he decided it would be more practical to upload the tutorials on YouTube, and now everybody knows how wonderfully it worked.
The website provides a free collection of more than 4,500 micro video tutorials on mathematics, history, healthcare, medicine, finance, physics, chemistry, biology, astronomy, economics, cosmology, organic chemistry, American civics, art history, macroeconomics, microeconomics, and computer science. Khan Academy has delivered over 260 million lessons. It's free for all.
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