Line Symmetry - PowerPoint PPT Presentation

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Line Symmetry

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Line Symmetry Year 4 A shape has line symmetry if These shapes have one line of symmetry These shapes have two lines of symmetry Some shapes have more than 2 lines ... – PowerPoint PPT presentation

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Title: Line Symmetry


1
Line Symmetry
  • Year 4

2
A shape has line symmetry if
You can draw a line through it so that one part
is exactly the same as the other part.
3
These shapes have one line of symmetry
4
These shapes have two lines of symmetry
5
Some shapes have more than 2 lines of symmetry
How many lines of symmetry has a square got?
6
Watch!
A square has 4 lines of symmetry
7
How many lines of symmetry does this shape have?
0
1
2
More than 2
8
Watch!
This shape has 1 line of symmetry
9
Well done!
10
But how many lines of symmetry does this shape
have?
0
1
2
More than 2
11
Watch!
This shape has 2 lines of symmetry
12
Well done!
13
How many lines of symmetry does this shape have?
0
1
2
More than 2
14
Watch!
This shape has 3 lines of symmetry
15
Well done!
16
But how many lines of symmetry does this shape
have?
0
1
2
More than 2
17
Watch!
This shape has only 2 lines of symmetry
18
Well done!
19
What happens when
you join two shapes together?
Investigate.
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