In this LESSON you will learn about:

Learning Objectives:
  1. ​The need for compression
  2. Types of compression
  3. The differences between Lossless and Lossly 
  1. ​​​​Complete the three compression activites
  2. Recognise the differences between the three methods

Lesson Overview 

Resources
Starter:
Download the two images below, look at them and list all the differences
Image 1
Image 2

Main:
This lesson is about Compression, this is important as it enables data to be sent to a range of devices such as laptops, computers, tablets and phones.  You will try out three Compression activities to learn about the various techniques, including run length coding.  You will also learn the difference between Lossless and Lossy

​​Plenary:​​
Discuss how a File size impacts on the download time.  Consider the speed of the Internet connection too.

This website will be useful

Home Study:

Try this compression puzzle, it is very hard!
puzzlesheeet-compressedpixel11.pdf
File Size: 212 kb
File Type: pdf
Download File