New technology revs up classrooms

Some schools are doing more than tolerating back talk in classrooms - they're encouraging it, with new interactive learning devices.

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<p><a href="http://www.physorg.com/news145186878.html">New technology revs up classrooms</a></p> <p>Some schools are doing more than tolerating back talk in classrooms - they're encouraging it, with new interactive learning devices.</p>