Project Learning Tree (PLT) as the third member of the "Project" family, along with Project WILD and Project WET. It was the third "Project" that I learned of, but recently was informed that it was the first one to come into existence.
PLT's mission is to teach students how to think about the environment, not what to think. A wide range of topics are covered by the curriculum, including forests, wildlife, water, waste management, community planning and energy.
As with the other Project programs, PLT is available to teachers or other leaders for low or no cost. You'll need to contact your state's PLT coordinator to find when and where the program is scheduled.
And, also like the other Project programs, you'll receive a fabulous curriculum guide. That book alone would be worth any price of admission!
I'm also pleased to let you know that I am officially trained as a Project Learning Tree facilitator. If you live in my area and are interested in bringing Project Learning Tree to your faculty or other group, send an email my way and we'll get it scheduled.