Squirrels, Acorns, and Fall. Discover and experience nature and squirrels in fall or autumn. Hand out a paper lunch bag for each child and take children on a walk to collect a variety of leaves, acorns, and pinecones. Talk about the color, sizes, and shapes of the collected items. Provide boxes for children to sort their treasures. Use the acorn and pinecones to play some games. Explain that squirrels are scampering to gather nuts, acorns, and pinecones to store for the winter.