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Topic plan · IGCSE Computer Science 0478 · Topic 10

Boolean logic

The NOT, AND, OR, NAND, NOR and XOR gates, and moving between problem statements, logic expressions, logic circuits and truth tables with up to three inputs.

Open the topic lab Question bank Notes PDF
Unit at a glance

4 lessons, 180 minutes of teaching

Lessons
4, each planned for 45 minutes
Worksheets
4 with answer keys
Quiz questions
24 multiple-choice, assignable in the app
Lab
Logic gates lab
Scheme of work

The lessons in order

RefLesson packStructureWorksheetQuizLab tab
10 (1-2)The six logic gates
Every calculation a processor makes comes down to tiny circuits called logic gates.
Jigsaw6 Q, 15 marks6 MCQtab 1
10 (3)Drawing logic circuits
A single gate cannot do much, but connect a few together and you can control an alarm, a greenhouse fan or a vending machine.
Corners6 Q, 17 marks6 MCQtab 2, tab 3
10 (3)Completing truth tables
A truth table proves what a circuit does for every possible input.
Numbered Heads Together6 Q, 20 marks6 MCQtab 4, tab 3
10 (3)Writing logic expressions
A logic expression describes a whole circuit in one line, such as X = (A AND B) OR NOT C.
Connect-Extend-Challenge6 Q, 16 marks6 MCQtab 2, tab 3

Each pack holds the plan, worksheet and quiz for its lesson. Teach the rows in order; the lab tabs match the student lessons.

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