Choose exam board for KS4 Computer Science (GCSE)
Choose exam board for KS4 English
Choose exam board for KS4 French
Choose exam board for KS4 Geography
Choose exam board for KS4 German
Choose exam board for KS4 History
Choose tier for KS4 Maths
Choose exam board for KS4 Music
Choose exam board for KS4 Physical education (GCSE)
Choose exam board for KS4 Religious education (GCSE)
Choose exam board for KS4 Spanish

      Recolouring digital images

      Lesson details

      Learning outcome

      I can explain the impact of changing the colours in a digital image.

      Key learning points

      1. Digital images can be recoloured.
      2. The colouring of an image can evoke different feelings and thoughts.
      3. Computers make it easy to experiment with different colour effects.

      Keywords

      • Effects - changes that are applied to give a different result

      • Colouring - changing the colour of something

      Common misconception

      Changing image colouring will make everyone think and feel the same way about the image.

      Lots of people might have similar feelings but not everyone will necessarily have the same thoughts and feelings.

      Teacher tip

      Images are provided for pupils to edit during this lesson, however pupils may want to search for and edit their own images. This adaption would make the activities be more relevant and authentic to your particular pupils.

      Equipment

      Pupils will need access to a device with software that provides freehand digital painting tools. Examples in this lesson use paint.NET https://oak.link/paint-net

      Files needed for this lesson

      Morning fog on mountain 382.47 KB (JPG)

      Animal in baron desert landscape 421.42 KB (JPG)

      Grass-covered mountains 727.81 KB (JPG)

      A2 Forest Footbridge 2.72 MB (JPG)

      Download these files to use in the lesson.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

      Loading...

      Prior knowledge starter quiz

      6 Questions

      Q1.
      What does edit mean when working with a digital image?

      to delete the image
      Correct answer: to make changes to the image
      to view the image
      to print the image

      Q2.
      What does the crop tool do?

      turns the image around a central point
      changes the colours in the image
      Correct answer: removes parts of the image
      adds text to the image

      Q3.
      What does rotate mean?

      Correct answer: to turn an image around a central point
      to remove parts of an image
      to change the colours of an image
      To add a frame to an image

      Q4.
      What is the 'composition' of an image?

      the colours used in the image
      the size of the image file
      the tools used to edit the image
      Correct answer: the way objects are arranged or framed in the image

      Q5.
      Which of the following is an example of editing an image?

      printing the image
      viewing the image on a computer
      Correct answer: changing the colours in the image
      deleting the image

      Q6.
      Order these steps to edit an image.

      1 - open the image in editing software
      2 - use tools like crop or rotate
      3 - save the edited image

      6 Questions

      Q1.
      Order the steps to experiment with colour effects on a computer:

      1 - open the image in editing software
      2 - apply colour effects
      3 - save the edited image

      Q2.
      What does changing the colouring of an image do?

      makes everyone feel the same way
      deletes the image
      Correct answer: gives people different feelings and thoughts
      makes the image smaller

      Q3.
      What does the term "effects" mean in digital images?

      Correct answer: changes applied to give a different result
      removing parts of an image
      turning an image around a central point
      saving an image

      Q4.
      Why is it easy to experiment with colours on a computer?

      computers can delete images
      computers always make images look better
      Correct answer: computers make it simple to try different effects
      computers can only use one colour

      Q5.
      What is one reason to experiment with colour effects?

      to delete the image
      Correct answer: to see how different colours change the image’s impact
      to make the image smaller
      to write text on the image

      Q6.
      What tool makes it easy to try different colour effects?

      a pencil
      a camera
      a paintbrush
      Correct answer: a computer

      To help you plan your 4 computing lesson on: Recolouring digital images, download all teaching resources for free and adapt to suit your pupils' needs...