National Project Learning Tree has many supplemental materials to activities listed on their website.  Find them at:
Michigan Project Learning Tree and Project WILD have listed many activities, lessons, ice breakers and fact sheets on the DNR website. 
Focus on Michigan Forests: A supplement to PLT's PreK-8 Environmental Education Activity Guide
How to Make Tree Cookies  from our friends at Minnesota PLT

Project Learning Tree has a network of program coordinators that covers all 50 states, the District of Colombia, and a growing number of countries around the world to see more, go to National Project Learning Tree's site

Forestry & Grant Resources

Forest Service and Ad Council's campaign

National Science Teacher Award Grants

Partners in Environmental Education & Protection

Michigan Department of Environmental Quality

Michigan PLT,
Feb 8, 2013, 9:59 AM
Michigan PLT,
Feb 8, 2013, 9:59 AM