Lines of symmetry
I can identify shapes and images that have reflective symmetry and explain where the line of symmetry lies.
Lines of symmetry
I can identify shapes and images that have reflective symmetry and explain where the line of symmetry lies.
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Lesson details
Key learning points
- A line of symmetry is used to show that one half of a shape is a reflection of the other half.
- When an image is folded along a line of symmetry, the two halves will match.
Keywords
Line of symmetry - If you were to fold a shape on its line of symmetry, both halves would match exactly.
Reflection - An image or shape as it would be seen in a mirror.
Symmetrical - When a shape has a line of symmetry, it can be described as symmetrical.
Common misconception
Children may think that any line drawn down the middle of a shape is a line of symmetry.
It is important for children to see that a line of symmetry can be folded to give two halves that match - one half is a reflection of the other half. Explore folding cut-outs of symmetrical and asymmetrical shapes to find lines of symmetry.
To help you plan your year 2 maths lesson on: Lines of symmetry, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Lines of symmetry, download all teaching resources for free and adapt to suit your pupils' needs.
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Explore more key stage 1 maths lessons from the Shape: discuss and compare 2D and 3D shapes unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
3 sides and 3 vertices
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is a pentagon.
has 8 vertices.
is a quadrilateral.
has 3 sides.
Exit quiz
6 Questions
