IGCSE Computer Science 0478: Local and global variables and subroutine programs
Students learn where variables can be used, then write, trace and debug short programs that combine procedures, functions and variables.
One content description from the full IGCSE Computer Science 0478 — 8.1c Procedures and Functions journey. All 8 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (8)
1
Local variables
2
Global variables
3
Local compared with global variables
4
Why local variables are preferred
5
Writing a short program with a procedure and a function
6
Tracing a program that calls a procedure
7
Tracing a program that calls a function
8
Finding and fixing errors in subroutine code
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