# Measure and calculate the perimeter of rectangles in centimetres and millimetres

In this lesson, we will learn about the concept of a 'perimeter', and look at examples of how to calculate the perimeter of rectangular shapes using different units of measurement.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

- Click "Close Video"
- Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

# Lesson summary: Measure and calculate the perimeter of rectangles in centimetres and millimetres

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## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:

Jog

On the spot:

Chair yoga