This document discusses two types of symmetry: line symmetry and rotational symmetry. Line symmetry, also called reflectional symmetry, occurs when a shape can be folded along a line and have the edges meet. Rotational symmetry occurs when a shape looks the same after being rotated less than 360 degrees. The document provides examples of line and rotational symmetry in letters, road signs, and shapes. It explains how to identify the number of lines of symmetry or order of rotational symmetry in different images.