Project Learning Tree (PLT) is an award-winning international environmental education program designed for teachers and other educators, parents and community leaders working with youth from preschool through grade 12.

PLT provides educators with tools, training, and resources to bring the environment into their classrooms, and their students into the environment. Since its beginning in 1976 and introduction to Michigan in 1979, educators have used PLT to teach about both the natural and built environment-forests, wildlife, water, air, energy, waste, climate change, invasive species, community planning, and culture to name a few. The materials are multi-disciplinary and aligned with state and national education standards.

Teachers and educators attend Project Learning Tree workshops to get materials and activity guides, professional development (SCECH credits), and may choose to become a trained PLT facilitators.