Lesson 6 Distance Around Shapes

    • Let’s find the distance around shapes.

Warm-up Notice and Wonder: Paper Clips & Shapes

What do you notice? What do you wonder?

4-sided shape partially measured with paper clips.

Activity 1 What Does It Take to Build the Shapes?

Your teacher will give you four shapes on paper and some paper clips.

Work with your group to find out which shape takes the most paper clips to build. Explain or show how you know. Record your findings here. Draw sketches if they are helpful.

A

B

C

D

Activity 2 Distance Around

Find the perimeter of each shape. Explain or show your reasoning.

  1. Rectangle on dot grid.
  2. 8-sided shape on dot grid.
  3. Triangle with side lengths shown with tick marks.
  4. 4-sided shape with side lengths shown with tick marks.
  5. 6-sided shape with side lengths shown with tick marks.

Practice Problem

Problem 1

Find the perimeter of each shape.

  1. 8-sided shape on dot grid.
  2. 8-sided shape with perimeter marked with tick marks.