Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Information Communication Technology ICT
Lesson Topic: Be able to adjust the brightness of an image
Learning Objective/s:
  • Describe what image brightness is and its effect on visual perception.
  • Explain why adjusting brightness is important for image quality and design.
  • Demonstrate how to adjust brightness using at least two software tools (Paint, Photoshop/GIMP).
  • Apply a systematic procedure to edit and save an image without overwriting the original.
  • Evaluate the impact of small brightness adjustments and combine them with contrast for optimal results.
Materials Needed:
  • Computer with internet access.
  • Image editing software (Microsoft Paint, Adobe Photoshop or GIMP).
  • Sample image file (sample-photo.jpg) – digital or printed.
  • Projector or interactive whiteboard for teacher demonstration.
  • Worksheet with step‑by‑step checklist.
  • Speakers/headphones (optional) for video tutorial.
 Introduction:
Begin with a quick demonstration of a poorly lit photograph and ask students what they notice. Recall that they have previously explored basic image editing tools such as cropping and resizing. Today they will learn how to adjust brightness, and success will be measured by correctly editing a sample image and explaining their choices.
Lesson Structure:
  1. Do‑now (5'): Students view a dim image on the screen and write one reason why brightness matters. (Engage)
  2. Teacher mini‑lecture (10'): Define brightness, show over‑ and under‑exposed examples, and discuss common software (Paint, Photoshop, GIMP). (Explain)
  3. Guided demonstration (15'): Live demo in Paint adjusting brightness, highlighting each menu command and preview. (Model)
  4. Paired practice (20'): Students open the sample‑photo.jpg in their chosen software, perform three adjustments (brighter, darker, +15), save each version with a new name, and complete the checklist. (Practice)
  5. Error‑correction discussion (10'): Review common errors (washed out, loss of detail, colour shift) and have pairs suggest fixes. (Check)
  6. Quick reflection (5'): Students write one tip they will remember for future image editing. (Consolidate)
Conclusion:
Summarise the key steps: work on a copy, make small adjustments, and always preview before saving. For the exit ticket, each student records the brightness value they used for the subtle +15 adjustment and why it improved the image. Homework: edit a personal photograph, applying both brightness and contrast adjustments, and bring the before‑and‑after files to the next lesson.