Year 3 - Maths
Identify parts and wholes in the contexts of lines and 3D objects
Identify parts and wholes in different contexts
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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 identify parts and wholes in different contexts including sets of objects, 3-D shapes and linear contexts.
Lesson Summary
You will learn to identify parts and whole in the contexts of lines and 3D objects.
Key Notes
- The whole has been divided into __ equal parts.
- Each equal part is one-__ of the whole.
- Fractions can be represented in different ways including names and notation.
Vocabulary To Learn
- Whole: The whole is all of a group or number.
- Part: A part is a section of the whole.
- Equal: Have the same quantity or value.
- Unequal: Do not have the same quantity or value.
Common Mistakes To Avoid
- Pupils struggle to visualise when considering 3D parts and wholes and cannot identify a given fractional part of a 3D whole, particularly when presented on a screen as a picture.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
The whole has been divided into __ equal parts. Each equal part is one-__ of the whole.
2. Use this key word in a maths sentence and explain it clearly. 'Whole'
The whole is all of a group or number. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils struggle to visualise when considering 3D parts and wholes and cannot identify a given fractional part of a 3D whole, particularly when presented on a screen as a picture. Correction: Provide opportunities for pupils to experience fractional parts of 3D shapes in real life situations e.g. base 10 blocks or using cuboids such as small cereal variety boxes or photocopying paper boxes. Physical manipulation can support visualisation.
More Lessons In This Unit
- Identify equal parts in a whole when they do not look the same in 2D shapes Study Guide
- Identify equal parts in a whole when they do not look the same in 3D contexts Study Guide
- Identify parts and wholes in different contexts Study Guide
- Solve problems by identifying parts and wholes in a range of contexts Study Guide
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