Complete a symmetrical pattern

I can complete different types of symmetrical patterns.

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Lesson 3 of 10

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Complete a symmetrical pattern

I can complete different types of symmetrical patterns.

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Key learning points

The mirror line shows where a mirror is placed.
Patterns are symmetrical when they are exactly the same on each side of the mirror line.
When placing a mirror on the line of symmetry, the image seen is the same as the other half of the symmetrical pattern.
The pattern will be the same distance from the mirror line on both sides.

Keywords

Symmetrical - When a shape has a line of symmetry, it can be described as symmetrical.
Mirror line - Another term for a line of symmetry. If you were to fold a shape on its line of symmetry, both halves would match exactly.
Line of symmetry - If you were to fold a shape on its line of symmetry, both halves would match exactly.

Common misconception

Children might spot the unit of repeat and draw a repeating pattern rather than a symmetrical pattern.

Allow children to fold and unfold painted patterns on the mirror line to see where each part of the pattern would be reflected. Printing is a great tool to create symmetrical patterns.

There are opportunities for practical exploration at the beginning of this lesson to activate children's prior knowledge of symmetry. Prioritise time for this.

Teacher tip

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).