1. Line Symmetry

2. Line Symmetry
If a shape can be folded in half so that one half fits exactly on top of the other, then we say that the shape has got line symmetry.
The fold is called a line of symmetry.
This shape has got a vertical line of symmetry.

3. Line Symmetry in the Alphabet
Which letters have got lines of symmetry?
Click to see the lines of symmetry. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

4. Lines of Symmetry all around us
Which of these road signs have got lines of symmetry?
Click to see the lines of symmetry.

5. Line Symmetry with Pentominoes
If you don’t know what a pentomino is, then click here.
If you have done the pentominoes activity before, then you will know what a pentomino is and how many different pentominoes there are.
Here they are ...

6. Line Symmetry with Pentominoes
How many lines of symmetry does each Pentomino have?
Sort them according to their lines of symmetry.

7. Line Symmetry with Pentominoes
One Line of Symmetry
Two Lines of Symmetry
Four Lines of Symmetry
Click to start sorting

8. Line Symmetry with 7-Pin Polygons
If you don’t know what a 7-pin polygon is, then click here.
If you have done the 7-pin polygons activity before, then you will know what a 7-pin polygon is and how many different ones there are.
Here they are ...

9. Line Symmetry with 7-Pin Polygons
How many lines of symmetry does each 7-Pin Polygon have?
Sort them according to their lines of symmetry.

10. Line Symmetry with 7-Pin Polygons
One Line of Symmetry
Two Lines of Symmetry
Three Lines of Symmetry
Six Lines of Symmetry
Click to start sorting

11. Now you know all about line symmetry! END OF PRESENTATION

12. Pentominoes
A pentomino is made out of five squares that are connected along at least one edge.
Here is an example of a pentomino.
These are NOT pentominoes.
How many different pentominoes can you find?
Click here to return to line symmetry.

13. 7-Pin Polygons Here is an arrangement of 7 pins.
A 7-pin polygon is a closed shape with straight sides with corners on the pins.
Here are some examples of 7-pin polygons.
How many different 7-pin polygons can you find?
Click here to return to line symmetry.

14. END OF PRESENTATION