1. Line Symmetry
Year 3

2. One line of symmetry
Shapes and pictures have one line of symmetry if you can fold them in half one way.

3. These shapes have one line of symmetry

4. Shapes can have more than one line of symmetry
These shapes have two lines of symmetry.

5. How many lines of symmetry does this shape have?
What do you think?
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6. Did you say 2?
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7. Well done!

8. How many lines of symmetry does this flag have?
What do you think?
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9. Did you say 2? This flag has only one line of symmetry.
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10. Flags Look at the three flags that make up the Union Flag.
Do they have line symmetry?

11. Flags Does St George’s flag have No lines of symmetry?
1 line of symmetry?
2 lines of symmetry?

12. Flags
St George’s flag has
2 lines of symmetry

13. Flags Does St Andrew’s flag have No lines of symmetry?
1 line of symmetry?
2 lines of symmetry?

14. Flags
St Andrew’s flag has
2 lines of symmetry

15. Flags Does St Patrick’s flag have No lines of symmetry?
1 line of symmetry?
2 lines of symmetry?

16. Flags
St Patrick’s flag has
2 lines of symmetry

17. The Union Flag
Find a picture of the Union flag. How many lines of symmetry does it have?
Look very carefully!