Due March 27.

The whole class will be divided into 8 groups. Each group
consists 4 students. Each students will write the report for
part 1 and draw a design for part 2.

Part 1. Explain the 'most' of rigid motions are
either  rotations or glide reflections.

Suppose a rigid motion is a rotation, find geometrically the center
of the rotation.

Suppose a rigid motion is a glide reflection, find the line of the reflection.
 

Part 2. Draw a Escher Design as in page 799.
The only condition is that there are no straight line segment in your pattern.
You can any titling:like Page 796, 797,803 and 809.

The grade here will based on accuracy and artistry.

You design shouldn't be exactly the same as those in the textbook.

Here is a useful link:

http://www.ucs.mun.ca/~mathed/Geometry/Transformations/symmetry.html
http://xahlee.org/Wallpaper_dir/c5_17WallpaperGroups.html