Related Links

American Geophysical Institute (AGI) 
AGI connects Earth, science, and people by serving as a unifying force for the geoscience community. AGI’s Earth Science Week helps the public gain a better understanding and appreciation for the Earth Sciences and to encourage stewardship of the Earth. 

National Association of Geoscience Teachers (NAGT)
The National Association of Geoscience Teachers is a volunteer organization that works to raise the quality of and emphasis on teaching the geosciences at all levels. The NAGT has an annual membership that includes online access to the Journal of Geoscience Education (JGE), professional development workshops, online teaching resources and much more. 

National Science Teachers Association (NSTA)
NSTA is the largest organization in the world committed to promoting excellence and innovation in science teaching and learning for all. NSTA's current membership of 55,000 includes science teachers, science supervisors, administrators, scientists, business and industry representatives, and others involved in and committed to science education.
NSTA Chapters and associated groups by state can be found here:
NSTA freebies for science teachers:

National Earth Science Teachers Association (NESTA) 
NESTA is a nonprofit educational organization founded in 1983. Their mission is to facilitate and advance excellence in K-12 Earth and Space Science education while serving a diverse population of learners in formal and informal settings. NESTA has an annual membership of approximately 1,000 teachers and produces a quarterly peer-reviewed journal, The Earth Scientist (TES), and a monthly electronic newsletter (E-News).

New York Earth Science Teachers Association (NYESTA
NYESTA is an affiliate of NESTA and works to promote Earth Science in New York State by offering a professional community for both pre-service and the working New York State Earth Science Teacher. 

Pennsylvania Earth Science Teachers Association (PAESTA)
PAESTA is the Pennsylvania affiliate of the National Earth Science Teachers Association. Become a member and share your ideas, vision, and energy. Membership is free and open to any educator or supporter of Earth and Space science education from Pennsylvania or outside the state. Gain access to their monthly newsletter full of opportunities, news, and resources. 

Pennsylvania Science Teachers Association (PSTA)
PSTA works toward the advancement, improvement, and coordination of science education in all areas of science at all educational levels. Membership includes access to announcements of professional development workshops and a Presence Listserv among other resources. 

The Science Education Resource Center (SERC)
SERC is a grant-funded office at Carleton College, founded to improve education in the Earth sciences and beyond. Hundreds of lessons are available for K-12 students covering topics in Life Science, Physical Science, and Earth & Space Science in their resources portal Teach the Earth