PHOTOJOURNALISM - TrockStock

Eighth graders, right to left, Tessa Anderson, Sarah Uttormark, and Emily Short work through a difficult advanced-placement algebra problem posed by their teacher, Seth Brown, Thursday, Dec. 1, 2011, at Wayzata (Minn.) West Middle School. Students who work standing up tolerate the varied seating arrangements, but sit on the floor any chance they get to work in small groups.

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