Year 3 - Maths
Identify properties of quadrilaterals
Right angles
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Study Guides
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 rotate 2 lines around a fixed point to make different angles. They identify vertices and describe half, quarter and three-quarter turns in terms of right angles.
Lesson Summary
You will learn to use different properties to identify and sort quadrilaterals.
Key Notes
- Quadrilaterals always have four sides, vertices and angles.
- Quadrilaterals always have straight sides and sharp vertices.
- Quadrilaterals can have right angles.
- Vertices are the corners of the shape.
Vocabulary To Learn
- Quadrilateral: A polygon with four straight sides.
- Vertex: The point where two lines meet.
- Vertices: More than one vertex.
- Properties: A character or quality that something has.
Common Mistakes To Avoid
- Pupils may have trouble recognising right angles or lines of symmetry when shapes have been rotated.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Quadrilaterals always have four sides, vertices and angles. Quadrilaterals always have straight sides and sharp vertices.
2. Use this key word in a maths sentence and explain it clearly. 'Quadrilateral'
A polygon with four straight sides. 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 have trouble recognising right angles or lines of symmetry when shapes have been rotated. Correction: Encourage pupils to check every angle using a simple right-angle measurer, which can be hand made or even cut from the corner of a piece of paper. Ask them to physically manipulate the shapes so that they can identify properties more easily.
More Lessons In This Unit
- Identify and describe right angles Study Guide
- Identify properties of triangles Study Guide
- Investigate and draw other polygons with right angles Study Guide
- Investigate the shapes made when rectangles are cut on the diagonal Study Guide
- Join four right angles at a point using different right-angled polygons Study Guide
- Know that a rectangle is a four-sided polygon with four right angles Study Guide
- Know that a right angle describes a quarter turn Study Guide
- Know that a square is a rectangle in which the four sides are of equal length Study Guide
- Make different sized angles by rotating two lines around a fixed point Study Guide
Browse all guides in the Year 3 Maths guide library.