More than half a million college students now use wireless devices, or “clickers,” to register class attendance and take quizzes, reports the New York Times. If any of the 70 undergraduates in Prof. Bill White’s “Organizational Behavior” course at Northwestern University are late for class, or not paying attention, he will know without having to scan the lecture hall; their “clickers” will tell him. The devices have altered, perhaps irrevocably, the nap schedules of anyone who might have hoped to catch a few winks in the back row, and made it harder for them to respond to text messages, eMail,...
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