Year 1 - Maths
Partition numbers one to five in different ways
Composition of numbers 0 to 5
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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 revisit how numbers are represented cardinally and ordinally. They will partition 1 - 5 in different ways, find a missing part when one part and the whole are known and explore one more and one less with numbers to five.
Lesson Summary
You will learn to partition the numbers one to five in different ways.
Key Notes
- Each of the numbers one to five can be partitioned in different ways.
- A part-part-whole model can be used to represent these different ways.
- A group of objects can be partitioned into two or more parts.
Vocabulary To Learn
- Whole: Whole means all of something. Complete.
- Part: A part is a piece or section of a whole.
- Partition: Partition means to split up a whole into parts.
- Part-part-whole model: A part-part-whole model is a pictorial representation that shows the whole and its parts.
Common Mistakes To Avoid
- When describing the partitioning of a number, children may mix the parts and the whole.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Each of the numbers one to five can be partitioned in different ways. A part-part-whole model can be used to represent these different ways.
2. Use this key word in a maths sentence and explain it clearly. 'Whole'
Whole means 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: When describing the partitioning of a number, children may mix the parts and the whole. Correction: Reinforce the stem sentence, ___ is the whole, ___ is a part and ___ is a part highlighting, the whole and each part using gestures.
More Lessons In This Unit
- Explain that numbers can represent how many objects there are in a set Study Guide
- Find a missing part when one part and the whole is known Study Guide
- Ordinal numbers show the position of an object in relation to another Study Guide
- Partition the numbers one to five in a systematic way Study Guide
- Show one more and one less than a number using representations Study Guide
- Show one more and one less than a number using representations and describe this accurately Study Guide
- Solve problems finding a missing part when one part and the whole is known Study Guide
- Solve problems using a bar model to represent a whole partitioned into two parts Study Guide
- Use a bar model to represent a whole partitioned into two parts Study Guide
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