Students identify and categorize leaves. They collect leaves from trees, research the leaves using field guides and the Internet, press, label, and display the leaves, and discuss how the leaf reflects adaptation to its environment.

Students examine the tree species in Pennsylvania.  In this Pennsylvania tree lesson plan students use field guides to assist them in identifying tree species. 

Students categorize leaves they collect from trees outdoors by consulting a variety of sources. They discuss how the form of a leaf reflects its adaptation to its environment.

Learners collect leaves and compile them into a collection booklet. They collect tree leaves, shrub leaves, grasses, and weeds. For each sample they also label its common name and information about where and when it was collected.