1. Chapter 7 Section 7.4

2. Objectives Learn about tessellations of regular polygons. Classify and identify monohedral, regular, and semiregular tessellations.

3. Tessellation A tessellation (tiling) is a pattern made of identical shapes where the shapes must fit together without any gaps and the shapes should not overlap. A tiling that uses only one shape is called a monohedral tessellation.

4. Regular Tessellation A monohedral tessellation of congruent regular polygons is called a regular tessellation.

5. Semiregular Tessellation When the same combination of regular polygons (of two or more kinds) meet in the same order at each vertex of a tessellation, it is called a semiregular tessellation.

6. Investigation As a class create semiregular tessellations using the floor tiles. What shapes could we use?