Lesson Plan

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Lesson Plan
Grade: Date: 25/02/2026
Subject: Design and Technology
Lesson Topic: The principal features of CAM (computer-aided manufacture), particularly in the control/operation of machines.
Learning Objective/s:
  • Describe the main features of CAM software, including tool‑path generation, simulation, post‑processing and parameter control.
  • Explain how CAM integrates with CNC machines and the role of G‑code.
  • Apply the CAM workflow to create a simple machining program from a CAD model.
  • Evaluate safety considerations and best practices when operating CNC equipment.
Materials Needed:
  • Projector or interactive whiteboard
  • Computer with CAM software (e.g., Fusion 360, Mastercam)
  • Sample CAD file (STEP/IGES)
  • Printed worksheet with G‑code examples
  • CNC machine or CNC simulator
  • Safety goggles
 Introduction:
Begin with a short video of a CNC machine cutting a complex part, then ask students how the machine knows what to do. Recall previous lessons on CAD design and the concept of digital files guiding physical production. Explain that today they will explore the key features of CAM and the steps that turn a CAD model into machine instructions, with success measured by their ability to outline the workflow and write a basic G‑code program.
Lesson Structure:
  1. Do‑now (5'): Quick quiz on differences between CAD and CAM.
  2. Mini‑lecture (10'): Overview of CAM features and types of machine control (NC vs CNC).
  3. Demonstration (15'): Live walk‑through of the CAM workflow – import CAD, define stock, select strategy, generate tool‑paths, simulate.
  4. Guided practice (15'): Students repeat the workflow on a sample part, adjusting parameters and observing the simulation.
  5. G‑code activity (10'): Edit a provided simple square‑pocket program to match the simulated tool‑path.
  6. Check for understanding (5'): Peer review of simulations and completion of a safety checklist.
Conclusion:
Summarise how each CAM stage contributes to accurate, repeatable machining and stress the importance of simulation for safety. Students complete an exit ticket describing one safety step they will always follow. For homework, they research a CAM software feature not covered today and prepare a brief note to share in the next lesson.