Functions and procedures A Level Resources

A Level Computer Science: Functions and procedures

This module contains:

  • An editable PowerPoint lesson presentation
  • Editable revision handouts
  • A glossary which covers the key terminologies of the module
  • Topic mindmaps for visualising the key concepts
  • Printable flashcards to help students engage active recall
  • A quiz with answer key to test knowledge and understanding of the module
Compatible with the following examination boards
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Functions and procedures

Programs implement several tasks. Many times similar tasks are repeated. Typing the same code multiple times is time-consuming. Such tasks are written as modules such as functions, procedures or subprograms are written. These can be called multiple times in the main program reducing the time taken.

This A Level Computer Science module introduces functions and procedures to your students, explaining:

  • Application of functions (learnt in mathematics) in programming.
  • How are functions useful to programmers?
  • What are procedures? How are they different from functions?
  • Passing parameters by value and by reference
  • Recursion

More Problem solving and programming Modules

Functions and procedures is one lesson in our Problem solving and programming module. The other theory lessons can be found below: