Math teachers who wave their hands while talking in a way that illustrates a point differently from their words impart more information to their students. The UChicago researchers determined that students whose teachers hand-wave learn more, and that when the hand-gestures illustrated a point to one side of the main point, they did even better.
As part of the experiment students had to complete the equation “7+6+5=?+5”. Teachers told the youngsters that they had to make one side of the equation match the other side.
The gestures simply duplicating these directions involved the instructors pointing to the left-hand and then the right-hand sides of the equation. When using complementary gestures, however, the teachers pointed to each of the numbers on the left and then signalled the subtraction of the five on the right side by scooping their hand away from the number.
You’d be forgiven for thinking the videocassette format long-dead, but it turns out that Betamax is still around. Sony is finally going to withdraw tapes from sale, bringing a 40-year story to an end. The last recorders were sold in 2002. ベータビデオカセットおよびマイクロMVカセットテープ出荷終了のお知らせ [Sony; via The Verge]
A leaked Comcast memo discloses that the company’s consumer data caps have nothing to do with network congestion, contrary to its public claims. The internet service provider has often complained (such as when lobbying against net neutrality) that it must impose limits on service to prevent network congestion. The argument suggests that these measures are […]
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Don’t get handcuffed by Apple’s standard 3-foot Lightning cord (that you’ve most likely already lost), treat yourself to 10 feet of luxurious charging convenience. The Colossal is certified by Apple for its high-end quality, and designed to support full use of your phone while you power up. You can also get it in a 2-pack […]