This activity can be done in a gym or any other large open space.
Class is split into 4 groups. Each group gets a large print out with a specific type of leaf on it. As quickly as they can in relay style, the first player from each team runs out to the middle of the gym where the leaves are piled up (this document contains over 100 multi colored leaves of the 4 various varieties), finds the corresponding shape, and brings it back to his or her team.
The group to collect the most leaves by the end of the game wins!