Year 5 - Maths
Explain how the value of a number relates to its position from zero
Negative numbers
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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 interpret numbers greater than and less than zero. They will read and write negative numbers, explain how the value of a number relates to its position from zero, positioning on a number line.
Lesson Summary
You will learn to explain how the value of a number relates to its position from zero.
Key Notes
- Negative numbers are below zero on a vertical scale
- Negative numbers are to the left of zero on a horizontal scale
Vocabulary To Learn
- Scale: A scale is a number line with equal divisions for equal values.
- Horizontal: A horizontal line goes side to side, like the horizon
Common Mistakes To Avoid
- When comparing a pair of numbers such as 3 and −3, pupils may think they are of equal value.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Negative numbers are below zero on a vertical scale. Negative numbers are to the left of zero on a horizontal scale.
2. Use this key word in a maths sentence and explain it clearly. 'Scale'
A scale is a number line with equal divisions for equal values. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: When comparing a pair of numbers such as 3 and −3, pupils may think they are of equal value. Correction: Use of number lines, ideally displayed in the classroom, will help pupils to see that numbers increase in value the further right they are.
More Lessons In This Unit
- Explain how negative numbers are used on a coordinate grid Study Guide
- Identify and place negative numbers on a number line Study Guide
- Interpret numbers greater than and less than zero in different contexts Study Guide
- Interpret sets of negative and positive numbers in a range of contexts Study Guide
- Read and write negative numbers Study Guide
- Represent a change story using addition and subtraction symbols Study Guide
- Solve problems involving positive and negative numbers in a range of contexts Study Guide
- Use knowledge of positive and negative numbers to calculate intervals Study Guide
- Use knowledge of positive and negative numbers to interpret graphs Study Guide
Browse all guides in the Year 5 Maths guide library.