This pumpkin math activity is perfect for Halloween or any day during the fall. The activity can be set up as a center or done in small groups. Best of all it gives your students a hands-on opportunity to work together to practice calculating volume and surface area. This pumpkin math investigation will have your students work together to: Estimate the volume and surface area of a pumpkinMeasure their pumpkin's circumference, diameter, and radius Calculate the surface area and volume of their