Find the Missing Side to Solve the Puzzle!

If you’re looking for an engaging digital alternative to typical perimeter worksheets, then look no further than Teach Starter’s interactive perimeter puzzle!

This interactive resource requires students to use the provided perimeter to find the length of the missing side.

This perimeter with missing sides game consists of a baseboard made up of 9 squares. Each square contains a shape with a missing side length. The students are required to choose a shape, and then use the provided perimeter to calculate the length of the missing side. Then, they’ll find the puzzle piece with the matching side measurement and drag it over the shape. As they move the pieces into the correct place, a mystery picture will reveal itself!

Measurements involve a combination of metric and customary units to ensure that students become familiar with both systems of measurement.

By completing this activity, students will demonstrate their ability to calculate the missing side of a shape when provided with the perimeter.

Multiple Applications for This Perimeter Puzzle

This versatile perimeter resource can be used in a variety of ways in your classroom. Keep reading for some suggestions from our teacher team!

1. Lesson Introduction or Wrap-Up – This perimeter with missing sides puzzle makes a great whole-class activity that can be used as a lesson introduction or wrap-up. Simply project the puzzle onto your interactive whiteboard, then invite students up to the board to move the pieces.
2. Pair Challenge – Assign the task to your students on individual devices, then place the students in like-ability pairs. Have the students race each other to complete the perimeter puzzle. Your students will love the friendly competition!
3. Individual Practice – For those students who need further practice with the concept of missing sides and prefer to work through tasks at their own pace, this resource makes the perfect revision activity for them to complete independently.

Start Teaching Perimeter with Missing Sides!

Use the Download button to access the Google Slides file. You will be prompted to make a copy of it before accessing it.

Please note that puzzle pieces are moveable in Edit mode only, not in Presentation mode.

This resource was created by Kaylyn Chupp, a teacher in Florida and a Teach Starter collaborator.

Perimeter Resources to Save You Time!

At Teach Starter, we want to save you time on your planning so you can concentrate on the most important part of your job… teaching! Click below for more great perimeter resources to use in your math lessons.

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Find the Missing Side Worksheet

Use this missing side perimeter worksheet to help your students find the missing sides on a collection of rectangles and squares.

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Perimeter Task Cards

Use these perimeter tasks to give your students practice with this fundamental measurement skill.

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Perimeter and Area Digital Puzzles

Give students practice finding the area and perimeter of squares and rectangles with these digital area and perimeter puzzles.