Sequence 3 — Modular Programming

Procedures, functions, parameters, return values, local and global variables. Prepares students for larger software development in Year 13. AQA 4.1.1.11–4.1.1.14, Lessons 10–14.

Subroutines — Procedures and Functions

  • Distinguish between procedures and functions
  • Explain the benefits of modular programming
Lesson ready

Parameters

  • Explain the purpose of parameters
  • Distinguish between parameters and arguments
Lesson ready

Returning Values

  • Distinguish between procedures and value-returning functions
  • Use the return statement correctly
Lesson ready

Local Variables

  • Explain variable scope
  • Distinguish between local and global variables
Lesson ready

Global Variables

  • Explain how global variables differ from local variables
  • Evaluate their advantages and disadvantages
Lesson ready