Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Computer Science
Lesson Topic: Use the following logic gate symbols: NOT, AND, OR, NAND, NOR, XOR
Learning Objective/s:
  • Identify and name the symbols for the six basic logic gates.
  • Construct accurate truth tables for each gate.
  • Write correct Boolean expressions using NOT, AND, OR, NAND, NOR, and XOR.
  • Combine gates to design simple combinational circuits and predict their outputs.
Materials Needed:
  • Projector and screen
  • Whiteboard and markers
  • Printed worksheets with gate symbols and truth‑table templates
  • Laptops with a circuit‑simulation tool (e.g., Logisim)
  • Sticky notes for quick checks
  • Handout summarising Boolean expressions
 Introduction:
Begin with a quick poll: “Which everyday device relies on logic gates?” Connect to prior knowledge of binary numbers, then state that by the end of the lesson students will be able to recognise gate symbols, build truth tables, and assemble simple circuits.
Lesson Structure:
  1. Do‑Now (5'): Students complete a short matching activity linking gate names to symbols.
  2. Mini‑lecture (10'): Review symbols, Boolean functions, and demonstrate constructing a truth table for NOT.
  3. Guided practice (15'): In pairs, students fill truth tables for AND, OR, NAND, NOR, XOR using worksheets.
  4. Hands‑on simulation (15'): Using laptops, learners model a three‑gate circuit (AND‑NOT‑OR) and verify its truth table.
  5. Concept check (5'): Quick “exit quiz” via sticky notes – one thing they mastered, one question remaining.
  6. Wrap‑up (5'): Teacher summarises key patterns and addresses common pitfalls.
Conclusion:
Recap the six gate symbols, their truth tables, and how they combine to form combinational logic. Students submit an exit ticket describing one real‑world example of a logic gate application. For homework, they complete a worksheet designing a circuit that implements a given Boolean expression.