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Dennis J. Gemmell, Ph.D., President
Dennis J. Gemmell, Ph.D.

Since 1999 Princeton Ecology Education Services has designed science education, ecology education, environmental education and environmental science curricula and conducted teacher professional development workshops for K - 12 schools, as well as universities such as Rider and Princeton. Dennis J. Gemmell is the founder and president. He received his B.S. from Villanova University, M.S. from the University of North Dakota and Ph.D. in ecology from Rutgers University. For his doctoral research he spent 5 years studying the natural history and ecology of the bog turtle, an endangered species in Pennsylvania and New Jersey.

Over a span of 30 years, he has held numerous college professorships teaching courses in ecology, environmental science and biology. He has designed Environmental Education programs, supervised proactive environmental clubs, directed a raptor rehabilitation program, and served on a variety of environmental committees and commissions. In addition, he has been chairman of a high school science department where he infused environmental education into the biology curriculum and implemented five-month long science research studies for all students in the academic program at the school. He personally supervised 125 science fair projects yearly. As director of an environmental conservation program for high school students with the U.S. Department of Interior, he conducted environmental learning training programs nation-wide. At the central Pennsylvania site for this program, he supervised nature trail construction, development of an authentic Shenks Ferry Indian village, forestry management, wildlife investigations, erosion control and historic building preservation. He has worked at a variety of environmental learning centers (Philadelphia Academy of Natural Science, Philadelphia Zoo, Schuylkill Valley Center for Environmental Education and Nature Center of Charlestown) designing and implementing environmental education programs and curricula.

Recent professional awards and presentations:

  • Presentation at the 2006 New Jersey Science Convention - How to Teach Good Scientific Inquiry in the K - 8 Classroom Using Ecology
  • Presentation at the 2005 Pennsylvania Science Teachers Convention - How to Teach Ecology Using an Inquiry-Centered Approach
  • Recipient of the 2003 Certificate of Recognition for Dedication to Teaching Science by the Rider University's Chapter of Sigma Xi (The Scientific Research Society)
  • Featured on Public Television's NJN Classroom Close-Up - (Part 1) The ES2 Program: Excellence in Science & Environmental Stewardship and (Part 2) What is Inquiry-Centered Science and How Does it Relate to Environmental Education?
  • Presentation at the Alliance for New Jersey Environmental Education Conference 2002 - Promoting Science Achievement and Local Environmental Stewardship
  • Presentation at the Alliance for New Jersey Environmental Education Conference 2003 - Where the Classroom is the Marsh Itself: Rider University's PROBE at the Hamilton - Trenton Marsh (with Dr. Mary A. Leck, Rider University)
  • Presentation at the 2003 Williamstown High School DemoDay Science Teacher's Workshop at Rowan University's College of Engineering - Using Marsh Ecology to Teach Good Inquiry-Centered Science Research Skills to High School Students: Rider University's Three Year PROBE Program
  • Presentation at the 2003 Pennsylvania Alliance for Environmental Education Conference - Using Marsh Ecology to Teach Good Inquiry-Centered Science Research Skills to K - 12 Teachers and Students - Rider University's Successful PROBE Program

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