ECSU Earth System Sciences Course Description http://nia.ecsu.edu/nrts/workshops/cet/esseacourses2.html Earth System Science Lesson Module for Pre-service Elementary Education Teachers: The Hydrosphere http://nia.ecsu.edu/nrts/earthsystem/lessons/lessons.html ESSEA Earth System Science Online Course Training Workshop http://nia.ecsu.edu/onr/02summer/072402cet/cetworkshop.htm Dr. Porter's abstract for the AGU 2001 Fall Conference http://nia.ecsu.edu/nrts/workshops/cet/porter.html Institute for Global Environmental Strategies http://www.strategies.org Center for Education Technologies http://www.cet.edu ECSU Virtual College http://vc.ecsu.edu
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