Lesson objective: Identify the shapes used to make up a three-dimensional figure.

This lesson prepares students to work with volume of three-dimensional figures. Images of three-dimensional figures are used here because it supports students ability to understand the structure of a three-dimensional figure from a two-dimensional image. This work develops students' understanding that prisms have faces other than rectangles.

Students engage in Mathematical Practice 4 Model with Mathematics as they distinguish between faces and bases of three-dimensional figures.

**Key vocabulary:**

- base
- face
- prism
- three-dimensional figure
- two-dimensional figure