Year 7 - Computing
Operators
Using fundamental programming constructs in a block-based language
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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 build their confidence and knowledge of the key programming constructs (sequence, iteration, selection and variables). Learners will use Scratch to explore the key programming constructs firstly through editing pre-existing code and then by developing their own programs.
Lesson Summary
You will learn to create complex conditions using comparison and logic operators.
Key Notes
- Comparison operators can be used to compare values in expressions.
- Logical operators can be used to compare multiple comparison expressions.
- Selection statements can combine comparison and logical operators to build complex conditions.
Vocabulary To Learn
- comparison operator: an operator that is used to compare one value to another
- condition: an expression that evaluates to True or False
- logic operator: an operator used in a logical expression, for example, AND, OR and NOT
Common Mistakes To Avoid
- Selection statements can only check one condition at a time.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
Comparison operators can be used to compare values in expressions. Logical operators can be used to compare multiple comparison expressions.
2. Define this computing term and give one practical example. 'comparison operator'
an operator that is used to compare one value to another. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: Selection statements can only check one condition at a time. Correction: Complex conditions can be built into selection using a combination of comparison and logical operators. Logical operators join separate conditions and provide one complete statement that still evaluates to only True or False.
More Lessons In This Unit
Browse all guides in the Year 7 Computing guide library.