At the supermarket, you can’t tell if the cashier knows arithmetic or not. Your groceries are scanned electronically and the prices tallied automatically. Yet the cashier probably still performs his work capably. Arithmetic is an outdated life skill, like swordplay or horse riding. Four hundred years ago, those were vital life skills; today they are relics of a bygone world and primarily enjoyed as sports. (Kindle location 70)Beyond the Hole in the Wall: Discover the Power of Self-Organized Learning (Kindle Single) (TED Books)
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