GCSE – Lesson 18 – Subroutines

Curriculum KS4 Unit Lesson

Learners will determine why subroutines are used in programs. Live coding is used to improve a calculator-style program by introducing subroutines. Learners will discover the advantages of using subroutines, and how they are used for decomposition. They will also modify a subroutine that uses parameters.

Learning objectives

  • Describe a subroutine
  • Describe the purpose of parameters in subroutines
  • Use procedures that accept arguments through parameters
  • Describe how subroutines are used for decomposition
  • List the advantages of subroutines

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GCSE revision

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