What is Project Learning Tree? is an award-winning, interdisciplinary environmental education program for educators working with students in PreK through grade 12. PLT helps students gain awareness and knowledge of the natural and built environment, their place within it, as well as their responsibility for it. is people. It is a network of 3,000 grassroots volunteers and over 100 state coordinators that work in conjunction with teachers, schools, state agencies, foresters, businesses and civic organizations, museums, nature centers, and youth groups to provide workshops and in-service programs. PLT is administered nationally by the American Forest Foundation with the Council for Environmental Education. is one of the most widely used environmental education programs in the United States and abroad. Over 500,000 educators have been trained to use PLT materials, and more than 25 million students have been reached in the United States, the Trust Territories, Canada, Chile, Sweden, Finland, Japan, Phillipines, Brazil and Mexico. 's mission is to increase students' understanding of our environment; stimulate students' critical and creative thinking; develop students' ability to make informed decisions on environmental issues; and instill in students the commitment to take responsible action on behalf of the environment. 's goals are to develop students' awareness, appreciation, understanding, skills, and commitment to address environmental issues; to provide a framework for students to apply scientific processes and higher order thinking skills to resolve environmental problems; to increase appreciation and tolerance of diverse viewpoints on environmental issues; to stimulate creativity, originality, and flexibility to resolve environmental problems and issues; and to encourage students to become responsible, productive, and participatory members of society.