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Symmetry

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What Is Symmetry? Symmetry = Same If something has symmetry it is the SAME on both sides

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**For Example: A butterfly has symmetry.**

If you draw a line down the center of a butterfly, both sides are the same!

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**Some More Examples: Many kinds of food have symmetry!**

Many living things have symmetry! Even people have symmetry – most of the time!

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**Sometimes, even very complicated things have symmetry:**

Like this building! It is called Aston Hall

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The 2 sides are the same! The 2 sides are symmetrical!

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**When the line of symmetry goes up and down, It is called VERTICAL symmetry**

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VERTICAL up and down

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**Another kind of symmetry is HORIZONTAL symmetry**

Horizontal means across, or side to side

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**For Example: Many common objects have horizontal symmetry!**

This bow and arrow has horizontal symmetry.! This ladybug has horizontal symmetry

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HORIZONTAL side to side

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**Sometimes, objects have both vertical and horizontal symmetry:**

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**Can you see the symmetry in this pattern?**

This object has two lines of symmetry

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**Which of these patterns is symmetrical?**

Nope! Yes! (one line of symmetry) Nope!

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**Which of these patterns is NOT symmetrical?**

This pattern is not symmetrical!

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**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)

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**Can you find symmetry in the world around you?**

Resources End Show Created by Sooz Williams - ©2005

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References Houghton, John and Rod Birch. "Aston Hall History." Aston History Homepage Apr 2005 <http://www.astonbrook-through-astonmanor.co.uk/id77.htm>. All other graphics courtesy of Microsoft Office Clip Art Online End Show

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