CTK Insights

Archive for the 'Mental arithmetic' Category

01 Apr

Why Learn Mental Math Tricks?

I strongly believe that those tricks are more than anything else convey to the early learners the essence of practicing mathematics. Presh Talwalkar's book may also open the eyes of an older generation on what they missed in the early grades.

02 Jul

Fibonacci Numbers Trick

TweetWilliam Simon was probably the first to employ a property of Fibonacci's recursion Xn+1 = Xn + Xn-1 as a professional magic trick. This is best described in Hilton, Holton, Pedersen: Consider the following number trick — try it out on your friends. You ask them to write down the numbers from 1 to 10. […]

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