Lesson objective: Nameand describe shapes, including cylinders and cones, based on their defining attributes.

This lesson helps to build procedural skills with naming shapes based on their defining attributes. Images of cylinders and cones are used here because their defining attributes can be easily highlighted and labeled. This work develops students' understanding that shapes are named based on their defining attributes.

Students engage in Mathematical Practice #2 (Reason abstractly and quantitatively) as they use highlighted images and labels to visualize the defining attributes of shapes.

**Key vocabulary:**

- cone
- curved surface
- cylinder
- face
- point

**Special materials needed:**

- solid shapes: cone and cylinder (if available)