This scraggly 50-foot Christmas tree in downtown Reading, Pa., became a symbol for a town hit by tough economic times to rally behind. Ben Allen/WITF hide caption

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Fourth-grader Isiah Soto digests some history during independent reading time. Emily Hanford/American Public Media hide caption

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NPR Ed

Common Core Reading: 'The New Colossus'

American Public Media

The Common Core State Standards have led to big changes in the way many teachers approach reading instruction.

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