## Lesson: Transformations

Introducing the Concept

The use of transformations can be found in designs for linoleum, wallpaper, and wall and window murals. This section provides an opportunity to work with the art department to make some tessellations, which are based on translations, rotations, or reflections.

**Materials:** overhead transparencies with coordinate grids on them, overhead washable pen, and ruler; graph paper, ruler, and pencil for each student

**Preparation:** none

**Prerequisite Skills and Background:** Students should be familiar with various types of triangles and quadrilaterals. They should also have some familiarity with graphing points on a coordinate grid. Students should know the various types of angles and be able to use a ruler and protractor.