September 04, 2012 at 02:00PM
Digital recordings allow teachers to walk students through equations, without being in the room.'Magic Pen' Helps High School Teachers Dig Deeper Into Math Lessons from U.S. News
September 04, 2012 at 02:00PM
Digital recordings allow teachers to walk students through equations, without being in the room.'Magic Pen' Helps High School Teachers Dig Deeper Into Math Lessons from U.S. News
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