Content atlas · Common Core State Standards for Mathematics 2010

Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

CCSS.MATH.CONTENT.3.MD.D.8

2 published problems

1. Fence the Wheat Farm — Plan a Minecraft wheat farm, mark its gate, and decide whether the available fence is enough.
2. 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.