Last week, Jan Olson, the principal of the Barrie, Ontario, Canada elementary school that abolished homework, told me how much he liked this TED lecture by Sugata Mitra. Mitra, a professor of educational technology, conducted several “Hole in the Wall” experiments in India, where he left computers embedded in walls in areas where kids had never had access to computers, education, or the English language, and returned later – sometimes hours, sometimes months – to see what had happened. It’s fascinating!