Lesson Plan

Lesson Plan
Grade: Date: 17/01/2026
Subject: Design and Technology
Lesson Topic: The advantages and disadvantages of the colour separation method during printing.
Learning Objective/s:
  • Describe the colour‑separation process and the function of CMYK plates.
  • Analyse the advantages of colour separation for large‑run printing.
  • Evaluate the disadvantages, including cost, set‑up time, registration errors and environmental impact.
  • Compare colour separation with alternative printing techniques.
  • Apply the knowledge to recommend suitable printing methods for specific design briefs.
Materials Needed:
  • Projector or interactive whiteboard
  • Slide showing the colour‑separation flowchart
  • Printed handouts with the summary table
  • Sample printed pieces (CMYK and spot‑colour examples)
  • Worksheets for group analysis
  • Markers and sticky notes
  • Optional: RIP software demo on a laptop
Introduction:

Begin with a quick visual hook of a vivid printed poster and ask students how many inks were used. Review prior knowledge of CMYK and plate concepts, then outline today’s success criteria: students will be able to list key pros and cons of colour separation and justify its use in a design brief.

Lesson Structure:
  1. Starter – 5 minutes: Kahoot quiz on printing terminology (CMYK, plate, RIP).
  2. Mini‑lecture – 10 minutes: Explain the colour‑separation workflow using the flowchart slide.
  3. Group analysis – 15 minutes: In pairs, examine the provided summary table and record advantages and disadvantages on the worksheet.
  4. Whole‑class discussion – 10 minutes: Share group findings; highlight registration issues and environmental concerns.
  5. Case study – 10 minutes: Present a design brief; groups decide whether colour separation or an alternative method is best and justify their choice.
  6. Check for understanding – 5 minutes: Exit ticket – each student writes one advantage and one disadvantage on a sticky note.
Conclusion:

Recap the main advantages and disadvantages discussed, linking them back to the success criteria. Collect exit tickets to gauge understanding and assign homework: research one alternative printing technique (e.g., spot‑colour or digital UV printing) and prepare a brief comparison for the next lesson.