Sooz Williams 2005 What Is Symmetry Symmetry Same
- Slides: 18
Sooz Williams - © 2005
What Is Symmetry? ØSymmetry = Same ØIf something has symmetry it is the SAME on both sides Sooz Williams - © 2005
For Example: A butterfly has symmetry. Sooz Williams - © 2005 If you draw a line down the center of a butterfly, both sides are the same!
Some More Examples: Many kinds of food have symmetry! Sooz Williams - © 2005 Many living things have symmetry! Even people have symmetry – most of the time!
Sometimes, even very complicated things have symmetry: Like this building! It is called Aston Hall Sooz Williams - © 2005
The 2 sides are the same! The 2 sides are symmetrical! Sooz Williams - © 2005
When the line of symmetry goes up and down, It is called VERTICAL symmetry Sooz Williams - © 2005
VERTICAL up and down Sooz Williams - © 2005
Another kind of symmetry is HORIZONTAL symmetry Horizontal means across, or side to side Sooz Williams - © 2005
For Example: Many common objects have horizontal symmetry! Sooz Williams - © 2005 This bow and arrow has horizontal symmetry. ! This ladybug has horizontal symmetry
HORIZONTAL side to side Sooz Williams - © 2005
Sometimes, objects have both vertical and horizontal symmetry: vertical AND horizontal Sooz Williams - © 2005
Can you see the symmetry in this pattern? This object has two lines of symmetry Sooz Williams - © 2005
Which of these patterns is symmetrical? Nope! Yes! (one line of symmetry) Sooz Williams - © 2005 Nope!
Which of these patterns is NOT symmetrical? This pattern is not symmetrical! Sooz Williams - © 2005
Does this object have vertical symmetry or horizontal symmetry? Both! In fact, you could argue that this object has 4 lines of symmetry! (although not exactly) Sooz Williams - © 2005
Can you find symmetry in the world around you? Resources End Show Created by Sooz Williams - © 2005
References Ø Houghton, John and Rod Birch. "Aston Hall History. " Aston History Homepage. 2002. 19 Apr 2005 <http: //www. astonbrook-throughastonmanor. co. uk/id 77. htm>. Ø All other graphics courtesy of Microsoft Office Clip Art Online End Show Sooz Williams - © 2005
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