Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Design and Technology
Lesson Topic: Presentation techniques: rendering, exploded views, assembly drawings
Learning Objective/s:
  • Describe the purpose and key features of rendering, exploded views and assembly drawings.
  • Apply appropriate rendering techniques to illustrate material, texture and colour on line drawings.
  • Construct clear exploded views that show component relationships and assembly order.
  • Produce complete assembly drawings including dimensions, reference numbers, BOM and fastener notes.
  • Evaluate presentation drawings against exam marking criteria.
Materials Needed:
  • A4 drawing sheets or CAD software.
  • Pencils, erasers, rulers, compasses.
  • Colour pencils or markers for rendering.
  • Template sheets for hatching.
  • Projector or interactive whiteboard for demonstrations.
  • Sample product for exploded‑view illustration.
  • Printed handouts of BOM tables.
 Introduction:
Begin with a quick visual of a fully rendered product to spark interest. Recall how students have previously used basic line drawings to communicate design ideas, linking that knowledge to today’s focus on advanced presentation techniques. Explain that by the end of the lesson they will be able to select and produce the appropriate drawing type and meet the exam success criteria.
Lesson Structure:
  1. Do‑now (5’) – Students label parts on a printed exploded‑view worksheet (checks prior knowledge).
  2. Mini‑lecture (10’) – Explain rendering techniques, show examples, discuss light source and material cues.
  3. Guided practice (12’) – In pairs, students apply a chosen rendering technique to a given part drawing using colour pencils.
  4. Exploded‑view activity (10’) – Whole‑class demonstration of creating an exploded view, then students sketch a simple device (e.g., screwdriver) following the step‑by‑step process.
  5. Assembly drawing task (13’) – Students combine their rendered parts and exploded view into a complete assembly drawing, add reference numbers, BOM and fastener notes; teacher circulates to give feedback.
  6. Quick check (5’) – Exit ticket: list three key differences between rendering, exploded view and assembly drawing.
Conclusion:
Summarise how rendering adds realism, exploded views clarify relationships, and assembly drawings provide full construction details. Ask students to write one tip they will use in the next design exam as a retrieval practice. Assign homework to produce a rendered, exploded, and assembled set for a household object of their choice.