Control Flow in Imperative Languages

Teach any GCSE Computer Science class

We have put together a full GCSE Computer Science curriculum that will give you all the teaching materials you need to teach any topic.

Whether you’re a brand new Computer Science teacher, or you’ve been teaching ICT for years, our resources will save you hours and hours of lesson preparation every single week.

View the resources →

Candidates should be able to:

understand and use sequence in an algorithm
understand and use selection in an algorithm (IF and CASE statements)
understand and use iteration in an algorithm (FOR, WHILE and REPEAT loops).

What is sequence in an algorithm?

Sequence is a control structure where the computer executes the instructions in the order they are written. Each instruction cannot be executed until the previous instruction is completed.

Example: This pseudocode algorithm uses the sequential instructions INPUT and OUTPUT and will simply execute the instructions in sequence, starting at the top . . .

This content is restricted to subscribers