Evaluated was the environmental education program conducted at the Tremond Environmental Education Center, Tremond, Tennessee to determine its effectiveness in changing and influencing environmental attitudes and self-concepts of elementary school children. As part of the study, instruments to assess environmental attitudes and attitude change in elementary children were developed and tested. The program conducted at the Tremond Environmental Center may change environmental attitudes, littering habits, and certain self-concept variables. The Environmental Preference Test, an instrument developed by the author and a panel of experts, appears to measure some environmental attitudes and attitude change in fourth- through sixth-grade students. Littering habits can be measured using the Verification Frequency Simulation and can be changed by the environmental program. It was also determined that a relationship may exist between environmental attitudes and the age or ethnic origin of the children. (Author/BB)