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Selection and iteration

AQA 75174.1 L3A-levelLesson packSubscription
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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
  • 29 marks
  • about 35 minutes
  • marked instantly

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

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A program asks the user for a PIN. It must ask at least once, and keep asking until the PIN entered is correct. Identify the most suitable structure.

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About this resource

AQA A-level Computer Science (7517) 4.1.1.2 Programming concepts: selection, nested selection, definite and indefinite iteration (condition at the start or the end), nested iteration and meaningful identifiers. C# lesson 3 of 10 in 4.1 Programming: a spot-the-mistakes Do Now, a short key idea, an…

15 slides.

Lesson outline

  1. Do Now: spot the 3 mistakes
  2. Do Now: answers
  3. Key idea: Selection
  4. Key idea: Iteration
  5. Set 1: count with for
  6. Set 2: selection inside a loop
  7. Exam question E1: iteration and identifiers
  8. Model answer E1
  9. Exam question E2: condition at the start or the end
  10. Model answer E2
  11. Set 3: indefinite and nested loops
  12. Finished? harder loops
Unit bundle4.1 Programming · full C# lessons
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