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Logic in the Real World

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This worksheet marks itself

Set it as homework or classwork and every answer is marked as pupils go, with feedback on what they got wrong. The scores go straight into your mark book, so you can see who needs help before the next lesson.

  • 11 questions
  • 35 marks
  • about 40 minutes
  • marked instantly

Question types: truth table, short answer, multiple choice, true or false, matching.

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A NOR gate is an OR gate with its output flipped (NOT OR). When does a NOR gate output 1?

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About this resource

Computing — Logic & Circuits, Lesson 5 of 6. Where logic gates are used in real decision systems (e.g. a burglar alarm), meeting three more gates (NAND, NOR and XOR, where XOR = 'one or the other, but not both'), and the idea of a half-adder that adds two bits. Students match real scenarios to th…

15 slides.

Lesson outline

  1. Hook — What Do These Have in Common?
  2. Do Now — Retrieval
  3. Gates Make Decisions
  4. Quick Check — Which Gate for the Alarm?
  5. The Alarm as a Circuit
  6. What Is a Logic Circuit?
  7. Hinge Check — What Does the Freezer Need?
  8. Three More Gates: NAND, NOR, XOR
  9. Check — XOR and the New Gates
  10. Adding Two Bits — the Half-Adder
  11. Task 2 — Sort the Real-World Rules
  12. Main Task — Build and Test a Garden Sprinkler
Unit bundleLogic
Part of: Logic: the whole unitEvery resource in the unit in one zip.

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