SECTION 10C HIGHLIGHTS

Vocabulary:  Symmetry, reflection symmetry, rotation symmetry,translation symmetry, tiling, tessellation

Assignment: Read section 10C pages 561-575 Do exercises 8,9,10,11-14,15,20

Notes:

• Reflection symmetry:  an object remains unchanged when reflected across a straight line.
• Rotation symmetry:    an object remains unchanged when rotated through some angle about a point.
• Translation symmetry: a pattern remains the same when shifted.

Skills you need to master in this section:

1.  Identify symmetries in objects.
2.  Tile a plane.

Activities for this section:
SymmetryActivity
These are the web pages you will need:
Part 1 :   http://members.aol.com/rcmoeur/signman.html
Part 2:   http://www.crwflags.com/fotw/flags/iso3166.html#d
Part 3:  http://hometown.aol.com/Narfmaster/logos1.html
Part 4:   http://www.snowflakebentley.com/01f.htm

TessellationActivity using Word

Check out this cool web page for tessellations http://library.thinkquest.org/16661/templates/index.html

Click on this link to view Escher's Belvedere on the website http://www.worldofescher.com/gallery/Belvedere.html

It is a very interesting example of "abusing" perspective.