Content atlas · Common Core State Standards for Mathematics 2010

Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).

CCSS.MATH.CONTENT.3.MD.C.6

1 published problem

1. Jules and the Crooked Shadow Screen — Move one square panel to straighten Jules’s shadow screen, then explain why its area stays put while its perimeter shrinks.