## Outline:

- Introduction
- Lines of Symmetry

## Introduction

If you fold a shape in half, where the two halves match then the image is said to have line symmetry or mirror symmetry. This folded line is a line of reflection.

**Term**: *Symmetry*: Exact similar part facing each other.

Observe the following pictures carefully and determine the lines of symmetry.

### Activity:

- Get a plain sheet of paper. Draw a straight line down the middle. Draw a shape on the left of the line and then place a mirror on the line. Observe the reflection of the image.
- Build symmetrical designs with pattern blocks or on a geoboard.