Project Learning Tree
Project Learning Tree is an award-winning environmental education program designed for teachers and other educators, parents, and community leaders working with youth from preschool through grade 12. PLT's "Environmental Experiences for Early Childhood" curriculum guide includes 11 activities and other experiences to facilitate outdoor play and nature exploration, and also includes a music CD with children's songs. PLT also offers a GreenSchools! program and provides materials for helping children and families connect with nature.