Year 6 - Maths
Use knowledge of shape properties to sketch and identify shapes
Draw, compose and decompose shapes
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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 knowledge of shape properties to draw, sketch and identify shapes.
Lesson Summary
You will learn to use your knowledge of shape properties to sketch and identify shapes.
Key Notes
- Regular shapes have all sides the same length and all angles equal size.
- Knowledge of properties of shapes helps to sketch shapes.
- Knowledge of properties of shapes helps to identify shapes.
Vocabulary To Learn
- Regular: A regular polygon has all sides equal and all angles equal.
- Irregular: An irregular polygon does not have all sides equal and does not have all angles equal.
Common Mistakes To Avoid
- Pupils might get confused by shapes which are almost polygons - for example, one of the lines is slightly curved - or almost regular - for example, one side is slightly longer than the others.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Regular shapes have all sides the same length and all angles equal size. Knowledge of properties of shapes helps to sketch shapes.
2. Use this key word in a maths sentence and explain it clearly. 'Regular'
A regular polygon has all sides equal and all angles equal. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils might get confused by shapes which are almost polygons - for example, one of the lines is slightly curved - or almost regular - for example, one side is slightly longer than the others. Correction: These are either not polygons or are irregular polygons. Ensure pupils are clear about that. Examples and non-examples are given, including 'almost' examples. You may wish to include more and display these in your Maths environment.
More Lessons In This Unit
- 3D shapes can be composed from 2D nets Study Guide
- Any parallelogram can be decomposed and the parts rearranged to form a rectangular parallelogram Study Guide
- Reason about compound shapes using the relationship between side lengths and area and perimeter Study Guide
- Reason about shapes using the relationship between side lengths and area and perimeter Study Guide
- Shapes with the same areas can have different perimeters and vice versa Study Guide
- The same 3D shapes can be composed from different 2D nets Study Guide
- Two congruent triangles can be arranged to compose a parallelogram Study Guide
- Use knowledge of shape properties to draw shapes accurately using rulers and protractors Study Guide
- When a 2D shape is decomposed and the parts rearranged, the areas remains the same Study Guide
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