Fall math lesson plans. Fall leaf crafts are perfect for preschool and early elementary (Silas, Moses, Lola, Lucian, Milo and Henry, these are for you!). Go on an autumn leaf walk and collect various colors, shapes and varieties of leaves. Have children sort and categorize leaves by color, tree of origin and size.
Fall science lesson plans. Using your collected leaves, research leaf types and identify which trees they come from. Discuss deciduous (trees that shed leaves annually) and evergreen or coniferous (which shed cones). Make a leaf identification chart or booklet. Label leaves. Here are free printable leaf patterns. Wildflower Ramblings has free printable leaf identification cards too. Here are more tree and leaf guides and printables. Here's another guide to tree and leaf identification.
I'll add more to this post soon! Just want to get you started.