Indian Students Use a Mental Abacus Technique to Make Impressively Fast Calculations in Their Heads
A video by Sanjay Shedge shows Indian students using a mental abacus technique to make impressively fast calculations in their heads. The students are trained to picture an abacus, and they manipulate the imaginary tool with their hands to quickly give answers to math problems.
via Boing Boing
Glen Tickle
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