Student desks that allow pupils to stand, sit or fidget to their hearts' content seem to improve student concentration and reduce obesity, say educators who use them. Now two studies are examining whether the desks really do improve students' academics or fitness. "I think we're so used to the traditional classroom it's taken a while for people to start thinking outside the box," said University of Minnesota kinesiologist Beth A. Lewis. "I think it's just a matter of breaking the mold."
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