A tessellation is a fancy term which means that when objects are placed side by side, they fit tightly and do not have any spaces between them. There are actually two types of tessellations: Regular Tessellations are made with identical shapes that all touch side to side. This includes squares, triangles and hexagons (see #4 below). There are also Irregular Tessellations that are made from several different shapes simultaneously that result in all parts of the figure being touched by another figure. For example, although #2 below is not a tessellation, if we added triangles between the pentagon spaces it would become an irregular tessellation.
|Which figures show tessellation?|