A cross section of a tree owned by Henri Grissino-Mayer, professor of geography, was used in a class presentation at Talbott Elementary School in Jefferson County. Almost two years ago, tree fell on a church in Knoxville. Members saw a hole in their building but an elementary school teacher saw an opportunity for lessons in geography, history, math, and more. Students use the tree’s natural timeline and modern technology to track history. Kurt Butefish, program administrator and coordinator with the Tennessee Geographic Alliance said lessons like that spark an interest in geography.