View full lesson: http://ed.ted.com/lessons/the-magic-of-vedic-math-gaurav-tekriwal
There is more than one way to reach a correct answer in mathematics. Vedic math, an ancient Indian method, sidesteps traditional computations in a manner that provides a shortcut, while being fun to use and to learn. At TEDYouth 2012, to ooh’s and aah’s from the amazed crowd, Gaurav Tekriwal demonstrates the magic of Vedic math.
Talk by Gaurav Tekriwal.