This learning resource focuses on rigid transformations, specifically examining how to identify the pre-image and image of a given sign. Students will learn to recognize the characteristics of rigid motions by identifying the vertices of the original and new position of the sign. The lesson encourages students to justify why a move qualifies as a rigid motion by comparing the side lengths of the figures involved. It includes a self-check component for comprehension and reflection on the properties that remain constant during rigid motions.