Types of loops

Computing

In this unit, pupils will explore the concept of repetition in programming in the Scratch environment. Pupils will look at the difference between count-controlled and infinite loops. They will use their knowledge to modify, design and create games and animations that involve repetition.

Using repetition in programming to create a game

Which block in Scratch is most likely to create an infinite loop?

to repeat an action a set number of times

Why might you use a count-controlled loop instead of an infinite loop?

Which of these is an example of an infinite loop in real life?

count-controlled loops have an end, infinite loops do not

What is a key difference between count-controlled and infinite loops?

Match the Scratch block to the type of loop it creates.

Which of these is an example of repetition in everyday life?

What do we call a single instruction that tells a computer what to do?

Match the real-life example to the type of repetition.

What is something you can change in a code snippet to get a different result?

If you want a sprite to jump three times, which loop would you use?

In programming, what is the purpose of a count-controlled loop?

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