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Line Symmetry
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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.
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Line Symmetry in the Alphabet
On your own sheets draw the 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
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Lines of Symmetry all around us
Which of these road signs have got lines of symmetry?
Click to see the lines of symmetry.
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Line Symmetry with
Pentominoes
• We haven’t yet looked at pentominoes so for a quick
explanation of what they are click here before you
look at the questions. The name doesn’t matter
greatly as long as you understand the type of shape
it means.
• Here they are ...
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Line Symmetry with
Pentominoes
How many lines of symmetry does each Pentomino have?
Sort them according to their lines of symmetry.
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Line Symmetry with
Pentominoes
One Line of
Symmetry
Two Lines of
Symmetry
Click to start sorting
Four Lines of
Symmetry
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Now you know all about line
symmetry!
END OF PRESENTATION
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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.
Draw your own pentomino on your whiteboard
Click here to return to line symmetry.
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END OF PRESENTATION