Year 1 - Maths
Identify a part of a whole group
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 identify a part of a whole group.
Key Notes
- If some of the objects in the group are missing, it is not the whole group it is part of the group.
- This is a whole group of --- because I have all of them and none are missing.
- This is not the whole group of ---because I do not have all of them and some of them are missing.
- There are ---- in the whole group and __ in this part of the group.
Vocabulary To Learn
- whole: All of something. Complete.
- part: A piece or section of a whole.
- whole group: A group of objects that form a whole set.
Common Mistakes To Avoid
- Children may find it hard to understand that a group of objects can represent a whole.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
If some of the objects in the group are missing, it is not the whole group it is part of the group. This is a whole group of --- because I have all of them and none are missing.
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 find it hard to understand that a group of objects can represent a whole. Correction: Use the correct language to emphasise the 'whole group of ..........' and explore what happens when a part is missing.
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
- Explain what a whole is 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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