Draw 3: Perimeter

Step #1: Setup

Draw three different shapes and calculate the perimeter of each one: square, rectangle, and triangle.

Tags: addition coding draw coding

Grades: 1 to 3 | Duration: Up To 1 Hour

1. Charge your robot.

2. Download and sign in to the app.

3. Download or print the “Perimeter” worksheet, or get some scratch paper.

4. Complete each step.

Attachments: Worksheet.pdf

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This project was developed by Sphero® and is featured on MakerHub with their permission.

For more makerspace projects, visit makerhub.demco.com.

Step #2: Square Perimeter

Watch the video to draw a square shape and learn the basic formula for perimeter. Then check your math

against the real data.

When you add up all four sides, what is the perimeter? Mark the answer on your worksheet.

YouTube video: https://youtu.be/K0tU3an6Bcw

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Step #3: Rectangle Perimeter

A rectangle has four straight sides like a square, but can have one pair of opposite sides that are longer

than the other pair. Tap undo to clear the canvas, and then draw a rectangle. Run the program, and review

the Sensor Data to see the lengths of each side again. Now draw the rectangle on your worksheet and

label each side length.

When you add up all four sides, what is the perimeter? Mark the answer on your worksheet.

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Step #4: Triangle Perimeter

A triangle has 3 straight sides and 3 points. Tap undo to clear the canvas, and then draw a triangle. Run the

program, and review the Sensor Data to see the lengths of each side. Now draw your triangle on your

worksheet and label each side length.

When you add up all three sides, what is the perimeter? Mark the answer on your worksheet.

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