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      Evaluating digital images

      Lesson details

      Learning outcome

      I can evaluate how changes can improve an image.

      Key learning points

      1. Edits can be reviewed for their effect.
      2. Images can be reviewed against a given criteria.
      3. Feedback can be used to guide editing choices.

      Keywords

      • Improve - to make something better

      • Review - to look at something and give your opinion

      Common misconception

      Editing always creates the perfect image first time.

      Editing images can take time. It may take two or three edits before you are happy with the final image.

      Teacher tip

      This lesson provides a good opportunity for pupils to review and give feedback to each other. For the reviewing activity, you could get pupils to give feedback to each other, rather than just self review.

      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

      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

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Which of these can be used to combine different images?

      a calculator
      Correct answer: image editing software
      a word processor
      a search engine

      Q2.
      Match the words to the correct definition:

      Correct Answer:publication,something that is made to communicate information

      something that is made to communicate information

      Correct Answer:design,a plan to show what something will look like before it is made

      a plan to show what something will look like before it is made

      Correct Answer:select,choose a specific area of a digital image

      choose a specific area of a digital image

      Correct Answer:clone,make an exact copy

      make an exact copy

      Q3.
      Which tool is the most useful for removing part of an image?

      paintbrush tool
      fill tool
      text tool
      Correct answer: crop tool

      Q4.
      What is an example of an image improvement?

      making an image blurrier
      adding random shapes over a photo
      Correct answer: adjusting colours to make it clearer
      deleting the entire image

      Q5.
      When creating a new image, why is planning important?

      Correct answer: it makes the process easier and more organised
      it wastes time
      it makes the image worse
      it is not needed

      Q6.
      Which of these is an example of combining images?

      writing text in a document
      Correct answer: adding part of a photo inside another photo
      printing an image
      deleting a photo

      6 Questions

      Q1.
      Why may you want to add text to an image?

      to delete parts of the image
      Correct answer: to give more information
      to confuse people
      to make it more colourful

      Q2.
      What colour should you avoid for your text?

      a light colour
      a dark colour
      lots of different colours
      Correct answer: the same colour as your background

      Q3.
      What is the colour wheel used for?

      Correct answer: changing the colour of something
      deleting parts of the image
      printing parts of the image
      cloning parts of the image

      Q4.
      What does the word improve mean?

      make something confusing
      Correct answer: make something better
      make something worse
      make something smaller

      Q5.
      What tool allows you the turn an image around a central point?

      Correct Answer: rotate

      Q6.
      When you edit something, does it always make it perfect?

      yes, if you make a change the image will always be perfect
      yes, any improvement you make will make the image perfect
      no, it is not possible to improve an image
      Correct answer: no, it may take two or three edits until you are happy with the final image

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