Year 3 - Maths
Solve problems involving comparing unit fractions
Compare and order unit fractions
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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 compare and order unit fractions by looking at the denominator and understanding what it represents.
Lesson Summary
You will learn to solve problems involving comparing unit fractions.
Key Notes
- When comparing unit fractions, the greater the denominator, the smaller the fraction.
- When comparing unit fractions, the smaller the denominator, the larger the fraction.
- Equal parts may not look the same.
Vocabulary To Learn
- Whole: The whole is all of a group or number.
- Part: A part is a section of the whole.
- Denominator: A denominator is the bottom number in a fraction. It shows how many parts a whole has been divided into.
- Unit fraction: A unit fraction is a fraction where the numerator is 1
Common Mistakes To Avoid
- Children may still fall into the habit of considering the greater denominator to be a greater fraction.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
When comparing unit fractions, the greater the denominator, the smaller the fraction. When comparing unit fractions, the smaller the denominator, the larger the fraction.
2. Use this key word in a maths sentence and explain it clearly. 'Whole'
The whole is all of a group or number. 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 still fall into the habit of considering the greater denominator to be a greater fraction. Correction: Continue to revisit a fraction wall where possible and use real life contexts and images. Ensure that the statement, 'When the whole is equal, the greater the denominator, the smaller the fraction.' is visible and constantly refer to it.
More Lessons In This Unit
Browse all guides in the Year 3 Maths guide library.