Gizmo of the Week: Surface and Lateral Areas of Prisms and Cylinders

Have you ever needed to wrap a present and wondered exactly how much paper it would require? How about a present with an unusual shape, like a cylinder or a triangular prism? Before you can say “Surface and Lateral Areas of Prisms and Cylinders,” your students will be using nets to calculate surface areas of a variety of solids. Students will see how the surface area is related to the base and lateral areas, and then use this pattern to derive a general formula for each surface area.

Once students have mastered prisms and cylinders, they can apply their skills to pointy solids with the Surface and Lateral Areas of Pyramids and Cones Gizmo.