Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Computer Science
Lesson Topic: Understand input devices and their purposes
Learning Objective/s:
  • Identify common input devices and categorize them as manual, automatic, or special‑purpose.
  • Explain how input devices convert physical actions into digital data.
  • Distinguish primary from secondary input devices and justify their use in different scenarios.
Materials Needed:
  • Projector or interactive whiteboard
  • Slides with device images
  • Handout worksheet (matching activity)
  • Sample input devices or images (keyboard, mouse, scanner, microphone)
  • Whiteboard and markers
  • Laptop with internet access
 Introduction:
Begin with a quick poll: “What device did you use to send a text message today?” to activate prior knowledge. Explain that today’s lesson will explore how these devices work and why some are essential while others are specialised. Students will know the criteria for identifying primary versus secondary input devices.
Lesson Structure:
  1. Do‑now (5’) – Students list as many input devices as they can on a sticky note; share and quickly categorize.
  2. Mini‑lecture (10’) – Define input devices, present categories and purposes using slides.
  3. Demonstration (10’) – Show how a keyboard and scanner convert actions to digital data; discuss ADC and interface.
  4. Guided activity (15’) – Pairs complete worksheet matching devices to data type and primary/secondary classification; teacher circulates.
  5. Group discussion (10’) – Students present examples of special‑purpose devices and justify their use.
  6. Check for understanding (5’) – Quick quiz (Kahoot/exit ticket) with three questions on categories and processes.
Conclusion:
Summarise that all input devices ultimately produce digital data for the CPU and that categories help select appropriate tools. For the exit ticket, each student writes one device and states whether it is primary or secondary. Homework: research an emerging input technology and prepare a short description for the next class.