Year 5 - Maths
Compare and describe lengths using knowledge of multiplication
Compare and describe measurements using knowledge of multiplication and division
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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 learn to compare and describe measurements using multiplication and division, applying their understanding of scaling as a structure of multiplication.
Lesson Summary
You will learn to compare and describe lengths using knowledge of multiplication.
Key Notes
- Lengths can be compared using multiplication.
- Comparisons of length can be represented as a multiplication equation.
- The stem sentence, 'The __ is __ times the length of the __' can be used to compare and describe lengths.
Vocabulary To Learn
- Times the length/height/depth: Times the length/height/depth is a phrase that is used to compare and describe lengths or heights. For example, one tree might be three times the height of another tree; it is three times as tall.
- Twice: Twice means 'two times as many'. For example, 'He asked her twice' means she was asked two times. In maths, we can say twice four is eight because two times four is eight.
Common Mistakes To Avoid
- Children may say, 'Times longer' but this is imprecise.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Lengths can be compared using multiplication. Comparisons of length can be represented as a multiplication equation.
2. Use this key word in a maths sentence and explain it clearly. 'Times the length/height/depth'
Times the length/height/depth is a phrase that is used to compare and describe lengths or heights. For example, one tree might be three times the height of another tree; it is three times as tall. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children may say, 'Times longer' but this is imprecise. Correction: We say 'Times the length' because this is more precise.
More Lessons In This Unit
- Compare and describe lengths using knowledge of division Study Guide
- Compare and describe measurements involving mass and capacity Study Guide
- Compare and describe measurements involving time and money Study Guide
- Describe changes in measurement using knowledge of multiplication and division Study Guide
- Solve comparison and change problems in a range of contexts Study Guide
- Solve comparison and change problems using division Study Guide
- Solve comparison and change problems using multiplication Study Guide
- Solve problems involving comparison and change Study Guide
- Use knowledge of multiplication and division to solve comparison and change problems Study Guide
Browse all guides in the Year 5 Maths guide library.