A tessellation is a shape that is repeated over and over again covering an area without any gaps or overlaps. One of the most famous artists who created tessellations is M.C. Escher. You can see one of his tessellation pieces below.
Taken from http://www.mcescher.com/
Below is a sement from Cyberchase –a television show on PBS:
Start at 3:31 for the segment on Tessellations:
For the full video: http://pbskids.org/go/video/?pid=auo60NBX2y1WrxRd9zb9Y2kwnRBhRhV7&category=Cyberchase
The video segment explains how to make the template. My children usually take their templates outside to the driveway and then make their tessellations with sidewalk chalk. I hope that your children will enjoy making tessellations too!