ZIMSEC O-Level Computer Science

8.19Form 2: Control structures, functions, testing and debugging

Form 2: Control structures, functions, testing and debugging in ZIMSEC O-Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.

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Learning objectives

What the syllabus expects you to be able to do.

8.19.1Develop programs that use pseudocode control structures (selection and repetition).
8.19.2Develop a program using functions.
8.19.3Test and debug programs.

Lessons

Procedures, functions, parameters and scope
50 min
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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Form 2: Control structures, functions, testing and debugging: sample question

What is output?

FUNCTION Triple(N : INTEGER) RETURNS INTEGER
    RETURN N * 3
ENDFUNCTION

OUTPUT Triple(7) + 1

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