Year 8 - Computing
Selection with multiple paths
Introduction to Python programming
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit introduces pupils to text-based programming with Python. Pupils start with programs involving input and output, and gradually move on to using arithmetic operations, randomness, selection, and iteration. Pupils will consolidate these skills in a project at the end of the unit.
Lesson Summary
You will learn to write selection statements to provide three or more paths to follow within a program.
Key Notes
- Multi-path selection checks successive conditions and selects one out of multiple paths to follow.
- Selection statements with conditions can be nested inside each other.
- If selection statements are nested then code blocks must be indented.
Vocabulary To Learn
- condition: an expression that evaluates to True or False
- multi-path selection: selection when there is more than one path for a program to follow
- nested: a block of code where a loop is contained within another loop
Common Mistakes To Avoid
- An if statement can only have two options.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
Multi-path selection checks successive conditions and selects one out of multiple paths to follow. Selection statements with conditions can be nested inside each other.
2. Define this computing term and give one practical example. 'condition'
an expression that evaluates to True or False. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: An if statement can only have two options. Correction: An if statement can be paired with elif and else statements to create multi-path selection. This allows for multiple paths to follow in a program.
More Lessons In This Unit
Browse all guides in the Year 8 Computing guide library.