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Associated Press
In this April 3, 2012, photo, teacher Bev Campbell holds up images of animals and insects for identification by students in her special education class at Amelia Earhart Elementary School in Hialeah, Fla. More than a dozen states have passed laws to reform how teachers are evaluated and include student growth as a component. For special education students measuring that growth is complicated. (AP Photo/Lynne Sladky)

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