Year 1 - Maths
Explain what a whole is
Comparing quantities - part part whole relationships
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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 explain that items can be compared using length and height, mass and volume/capacity. They will compare sets of objects using equality/inequality symbols. Pupils will also explore part-part-whole relationships with representations.
Lesson Summary
You will learn to explain what a whole is.
Key Notes
- A whole can be represented by one object.
- If some of the object is missing it is not a whole.
- Wholes can be different sizes.
- This is a whole ---- because I have all of it.
- This is not a whole --- because I do not have all of it.
Vocabulary To Learn
- whole: All of something. Complete.
- all of it: All of something. Complete.
- not whole: Not all of something. Incomplete.
- part: A piece of a whole.
Common Mistakes To Avoid
- Children may think that the size of an object affects whether it is a whole or not.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
A whole can be represented by one object. If some of the object is missing it is not a whole.
2. Use this key word in a maths sentence and explain it clearly. 'whole'
All of something. Complete. 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 the size of an object affects whether it is a whole or not. Correction: Show whole objects in different sizes and orientations. Emphasise the language 'whole'.
More Lessons In This Unit
- Count a set of objects Study Guide
- Explain that a whole can be split into parts Study Guide
- Explain that a whole can represent a group of objects Study Guide
- Explain that items can be compared using capacity Study Guide
- Explain that items can be compared using length and height Study Guide
- Explain that items can be compared using weight and mass Study Guide
- Explain what a part-part-whole model is Study Guide
- Identify a part of a whole group Study Guide
- Solve problems by comparing sets of objects Study Guide
- Solve problems using part-part-whole models with more than two parts Study Guide
- Use a part-part-whole model to represent a whole partitioned into two parts Study Guide
- Use a part-part-whole model to represent partitioning into more than two parts Study Guide
- Use equality and inequality symbols to compare sets of objects Study Guide
- Use equality and inequality symbols to compare the relative size of two numbers Study Guide
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