Lesson Plan

• Describe Boolean variables, truth values, and common logical operators.
• Construct truth tables to verify Boolean expressions.
• Translate a problem statement into a Boolean expression and simplify it.
• Design a logic‑circuit diagram using appropriate gates.
• Evaluate the circuit’s functionality by testing its truth table.

• Projector and screen
• Whiteboard and markers
• Printed worksheets with problem statements and truth‑table templates
• Logic‑gate symbol cards or posters
• Computers with circuit‑simulation software (e.g., Logisim)

Begin with a short video of a home security system that uses sensors to trigger an alarm, highlighting the need for logical decision‑making. Ask students to recall how Boolean variables and basic gates work, linking this to the video. Explain that by the end of the lesson they will be able to create a functioning logic circuit from a real‑world problem.

1. Do‑now (5 minutes): Quick quiz on AND, OR, NOT, XOR symbols.
2. Mini‑lecture (10 minutes): Review the five‑step process – interpret, express, truth‑table, simplify, draw circuit.
3. Guided practice (15 minutes): As a class, work through the security‑system example, constructing the expression, truth table, and circuit.
4. Independent activity (15 minutes): Students choose one of the additional practice questions, create a truth table, simplify the expression, and sketch the circuit using the simulation software.
5. Check for understanding (5 minutes): Volunteers present their circuits; teacher provides immediate feedback and clarifies misconceptions.

Summarise the workflow from problem statement to final circuit, emphasizing the role of truth tables in verification. For the exit ticket, each student writes one concise sentence describing the most important step in the process. Homework: complete the remaining two practice questions and bring printed circuit diagrams to the next class.