This document discusses 2D and 3D shapes and introduces the concept of volume. It asks students to identify 2D shapes like triangles, squares, and circles in the classroom and draw examples of 3D shapes like prisms, cubes, spheres and cylinders from books. It then prompts students to discuss in pairs what volume is, when it is used, and why it is needed. The document provides activities for students to calculate the volume of a cube using the formula Volume = Length x Width x Height and the volume of a cone using worksheets and online resources.