Five pages on perimeter, the distance all the way around a shape. Page 1 puts shapes on grid paper so students count unit lengths around the edge. Page 2 adds the labelled sides of triangles, quadrilaterals, pentagons, and hexagons. Page 3 shows only two sides of each rectangle (and one side of each square), so students use equal opposite sides. Page 4 gives the perimeter and asks for the missing side. Page 5 has six word problems about fences, frames, and walking around a park.
Walk the edge of a rug or a table with your finger before page 1 and count steps or hand spans: that is the perimeter. Page 4 is a good warm-up for algebra thinking, since students work backward from the total.
Measure the sides of a book, a placemat, or a picture frame with a ruler and add them up together. Ask how much ribbon it would take to go all the way around.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
A 5-page perimeter pack for 2nd and 3rd grade. Count the units around shapes on grid paper, add the side lengths of triangles, pentagons, and hexagons, find rectangle perimeters from two sides, find a missing side from the perimeter, and solve fence and frame word problems. Answer keys included.
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