Year 3 - Maths
Explain why a part can only be defined in relation to a whole
Unit fractions as part of a whole
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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 represent unit fractions in different ways, identifying the whole, the number of equal parts and the size of each part as a unit fraction, including tenths.
Lesson Summary
You will learn to explain why a part can only be defined in relation to a whole.
Key Notes
- A part must be part of a whole.
- If __ is the whole then __ is part of the whole.
- The whole can be different in different situations.
Vocabulary To Learn
- Whole: The whole is all the parts or everything, the total amount.
- Part: A part is some of the whole.
Common Mistakes To Avoid
- Children may think that a part only needs to be something smaller than the whole and not part of it.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
A part must be part of a whole. If __ is the whole then __ is part of the whole.
2. Use this key word in a maths sentence and explain it clearly. 'Whole'
The whole is all the parts or everything, the total amount. 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 think that a part only needs to be something smaller than the whole and not part of it. Correction: Spend some time identifying wholes in the classroom and then get the children to identify a part of it. Get the children to play games involving spotting non-examples to strengthen their understanding. Ensure the wholes you use are clearly defined.
More Lessons In This Unit
- Construct a whole when given a part and the number of parts Study Guide
- Explain the size of a part in relation to the whole Study Guide
- Identify a whole and the parts that make it up Study Guide
- Identify equal parts when they do not look the same Study Guide
- Identify how many equal parts a whole has been divided into Study Guide
- Identify the number of equal or unequal parts in a whole Study Guide
- Represent unit fractions in different ways Study Guide
- Solve problems involving identifying equal parts and the whole Study Guide
- Use fraction notation to describe an equal part of the whole Study Guide
Browse all guides in the Year 3 Maths guide library.