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  1. Subjects
  3. Computing
  5. Key stage 2
  7. Year 5
  9. Skills showcase: Mars Rover 2
  11. Lesson 2: Compressing images

Lesson 2: Compressing images

Learning how compression works by discovering different image formats and why some are more appropriate for images sent from Mars.

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In this unit

  • Assessment – Computing Y5: Mars Rover 2

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  • Lesson 1: Pixels

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  • Current lesson

    Lesson 2: Compressing images

  • Lesson 3: Fetch-Decode-Execute cycle

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  • Lesson 4: Tinkering with CAD

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  • Lesson 5: Tinkercad design

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Created by: Kapow Team | Maintained by: Kapow team
Last update: 15 April 2026
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ComputingYear 5

Assessment – Computing Y5: Mars Rover 2

Assessment quiz and Knowledge catcher for use at the start and/or end of the unit to assess pupil progress.

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Lesson 1: Pixels

Exploring how pixels and binary code form digital images.

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Lesson 3: Fetch-Decode-Execute cycle

Learning how the Mars rover follows instructions by understanding how computers work, including their RAM and ROM.

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