Show:
How to
Definitions
What You Need
Examples
100
Explain how to perform a glide reflection.
Translate the image the given distance and direction, and then reflect to over a line of reflection. Repeat this process over and over with the same distance and direction.
100
What is a translation?
A function that moves an image a certain distance.
100
True or false? You only need a direction and line of reflection to glide reflect.
False. You need a direction, line of reflection, and a specific distance.
100
Which is a glide reflection tessellation? http://mathforum.org/sum95/suzanne/ctrinine.gif http://mathforum.org/sum95/suzanne/tess10.gif
The first one
200
Explain how to perform a glide reflection tessellation if given a square piece of paper.
Cut a piece off the left side and translate it to the right side. Cut off a piece from the bottom and translate it to the top, then flip it over. To make a tessellation, line them up in a horizontal line. Once it is as long as you want, you can go up and start a new horizontal line. However, you will need to flip it so it fits in with no gaps.
200
What is a reflection?
A flip of a shape over a line of reflection. To create a "mirror image."
200
What 3 types of grids can you create glide reflection tessellations on?
Grids of glide-reflected kites, parallelograms, or squares.
200
Which example is a glide reflection? http://www.math.nus.edu.sg/aslaksen/gem-projects/maa/0203-2-03-Escher/humans.jpg http://www.mi.sanu.ac.rs/vismath/roelofs/Image894.jpg
The second one
300
What is a glide reflection?
A glide reflection is basically a translation followed by a reflection.