Whether you regularly use the outdoors as a classroom or tend to hesitate every time you take your class outside, the unit is an invitation to increase the quantity and quality of your K-2 learners’ contact with nature and trees. Treemendous Science! gives K-2 students chances to explore, experience, observe, and collect tree data to develop understandings about how trees grow, the roles trees play in ecological systems, and the ways in which trees and humans interact.