Year 2 - Maths
Identify and explain when objects cannot be grouped equally
Introduction to division structures
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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 use practical resources to model and explain when objects can and cannot be grouped or shared equally. They will then represent practical situations using division expressions and equations.
Lesson Summary
You understand that objects cannot always be grouped equally.
Key Notes
- Sometimes a number can be made into groups of equal size and sometimes the groups are unequal sizes.
- There are ___ groups of ___ and ___ are not in a group of ___
- When the number of objects is not a multiple of the group size, you cannot make equal groups.
Vocabulary To Learn
- Group: A group is a collection of objects or images.
- Unequal: Unequal means not to have exactly the same amount or value.
Common Mistakes To Avoid
- Pupils may struggle to understand why equal groups can / cannot be made.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Sometimes a number can be made into groups of equal size and sometimes the groups are unequal sizes. There are ___ groups of ___ and ___ are not in a group of ___.
2. Use this key word in a maths sentence and explain it clearly. 'Group'
A group is a collection of objects or images. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may struggle to understand why equal groups can / cannot be made. Correction: This is a challenging concept for Y2 children without visual representations. Take time to explore how even numbers can be grouped in equal groups of 2, whereas odd numbers cannot be and how multiples of 5 can be grouped into equal groups of five.
More Lessons In This Unit
- Calculate the number of equal groups in a division story Study Guide
- Explain that objects can be grouped equally Study Guide
- Explain that objects can be shared equally Study Guide
- Explain the relationship between division expressions and division stories Study Guide
- Skip count to find the group size in a sharing problem Study Guide
- Skip count using the group size to find the number of groups Study Guide
- Solve a variety of division problems, explaining understanding Study Guide
- Use knowledge of skip counting and division to solve problems relating to measure Study Guide
- Use skip counting to solve a sharing problem Study Guide
Browse all guides in the Year 2 Maths guide library.