Year 4 - Computing
Creating games
Using repetition in programming to create a game
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
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.
Lesson Summary
You will learn to create a project that includes repetition.
Key Notes
- A program can be built by implementing a design and algorithm into code.
- The order of blocks inside a loop affects the outcome.
- Testing and debugging are necessary steps when building and refining a program.
Vocabulary To Learn
- algorithm: a sequence of steps that can be followed to do a task
- debug: the process of finding and correcting errors in code
Common Mistakes To Avoid
- The order of the blocks inside a 'forever' loop doesn't really matter, as long as they are all in there.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
A program can be built by implementing a design and algorithm into code. The order of blocks inside a loop affects the outcome.
2. Define this computing term and give one practical example. 'algorithm'
a sequence of steps that can be followed to do a task. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: The order of the blocks inside a 'forever' loop doesn't really matter, as long as they are all in there. Correction: The order of the blocks inside a loop can matter, and running them in a different sequence may affect the game.
More Lessons In This Unit
Browse all guides in the Year 4 Computing guide library.