Year 1 - Maths
Partition the numbers one to five in a systematic way
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 a systematic way and know when you have found all the combinations.
Key Notes
- Know there are different ways to partition the numbers one to five.
- Know each of the numbers one to five can be partitioned in a systematic way.
- Use part-part-whole models to record the different combinations systematically.
- Use a table to record the different combinations systematically.
Vocabulary To Learn
- 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.
- Combination: Any way two or more parts can be put together.
- Working systematically: Having an order to the way we work, identifying and using patterns.
- Table: A way of showing information (such as numbers and descriptions), arranged in rows and columns.
Common Mistakes To Avoid
- When using patterns to identify combinations, it will be easy to make errors in recording.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Know there are different ways to partition the numbers one to five. Know each of the numbers one to five can be partitioned in a systematic way.
2. Use this key word in a maths sentence and explain it clearly. 'Partition'
Partition means to split up a whole into parts. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: When using patterns to identify combinations, it will be easy to make errors in recording. Correction: Spend time exploring the value of recording combinations within a simple table. Encourage checking, e.g. the amount of counters totals 5.
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 numbers one to five in different ways 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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