Sooz Williams 2005 What Is Symmetry Symmetry Same

  • Slides: 18
Download presentation
Sooz Williams - © 2005

Sooz Williams - © 2005

What Is Symmetry? ØSymmetry = Same ØIf something has symmetry it is the SAME

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

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

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

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 -

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

When the line of symmetry goes up and down, It is called VERTICAL symmetry Sooz Williams - © 2005

VERTICAL up and down Sooz Williams - © 2005

VERTICAL up and down Sooz Williams - © 2005

Another kind of symmetry is HORIZONTAL symmetry Horizontal means across, or side to side

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

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

HORIZONTAL side to side Sooz Williams - © 2005

Sometimes, objects have both vertical and horizontal symmetry: vertical AND horizontal Sooz Williams -

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

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

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

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

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

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.

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