Skip to main content

Education recovery: Explore our curated collection of CPD, resources and support.
Online courses: FutureLearn are changing what data they store as part of GDPR on 20 Oct 2021. You may need to take action.


Lesson 16 Run length encoding

Curriculum > KS4 > Unit > Lesson

Learners will be introduced to run length encoding (RLE), which is a type of lossless compression. Through demonstrations and examples, learners will find out about frequency pairs and manually perform RLE on some data. Finally, they will learn about the term ‘compression ratios’ and calculate the compression ratios for different file sizes.

Learning objectives

  • Explain how data can be compressed using run length encoding (RLE)
  • Represent data in RLE frequency/data pairs
  • Calculate compression ratios

Package contents

  • Lesson plans
  • Learning graphs
  • Unit overviews
  • Activities
Log in to download

Not registered yet?

Create an account and get access to over 500 hours of free teaching resources.

Help us make these resources better

Provide your feedback

Or email us at [email protected]