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Data types, variables, constants and casting

AQA 75174.1 L1A-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
  • 26 marks
  • about 35 minutes
  • marked instantly

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

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State the most suitable data type for storing a UK mobile phone number such as 07700 900123.

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About this resource

AQA A-level Computer Science (7517) 4.1.1.1 Data types · 4.1.1.6 Constants and variables, with the type conversions of 4.1.1.7 and the rounding and truncation of 4.1.1.3. C# lesson 1 of 10 in 4.1 Programming: a spot-the-mistakes Do Now, a short key idea, an 11-challenge ladder in three sets with…

15 slides.

Lesson outline

  1. Do Now: spot the 3 mistakes
  2. Do Now: answers
  3. Key idea: Data types
  4. Key idea: Constants, converting and casting
  5. Set 1: declare and print
  6. Set 2: convert and cast
  7. Set 3: constants and choosing types
  8. Exam question E1: advantages of named constants
  9. Model answer E1
  10. Exam question E2: choosing types for a record
  11. Model answer E2
  12. Finished? codes and records
Unit bundle4.1 Programming · full C# lessons
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