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Team Leader

Meaghan Cells is a high school chemistry teacher at Catholic Memorial School in Boston. She was a Dow Fellow for the 2013-2014 NSTA New Science Teacher Academy and most recently worked as a 2013 Teacher-in-Residence at the Boston Museum of Science. Meaghan also serves as a county director for the Massachusetts Association of Science Teachers (MAST), a state chapter of NSTA. She is a “double eagle” having earned both her BS and MEd from Boston College. Her undergraduate degrees are in chemistry and secondary education, and her graduate degree is in curriculum and instruction, with a concentration in working with English language Learners.


Tabby Dionne has been teaching science at Brunswick Junior High School in Maine since 2005, and teaching middle school science since 2002. Before switching to classroom teaching, she was an environmental educator and naturalist. At BJHS, she has served as team leader and on the district science curriculum committee. She was also a lead teacher for the NSF grant-funded Ecobeaker Maine Explorer curriculum project. She has a BA in biology from Hartwick College and an MAT in science education from Cornell University.

Caroline Hall is managing editor, digital collection curator, and e-book developer for the American Association of Physics Teachers. She also develops specialized collections for The Physics Classroom, assembles topic-specific learning modules for the ComPADRE Digital Physics Library, and serves as a standards-alignment expert for private clients, including PBS Learning Media and Denver Public Schools. In addition, she often engages in formal evaluation of digital science resources for clients such as NASA-JPL and the Concord Consortium. Before getting involved in digital science education, Caroline taught for eight years in Ohio middle and high schools. That teaching experience shapes her mission to bring exemplary, classroom-ready digital science materials directly to teachers and learners. Her goal is that by 2020, all students in the United States will be able to easily locate and equitably access these exemplary resources, regardless of ability, population demographic, or economic status.

Alison Hapka teaches high school physics and chemistry, and work hard each day to inspire young learners to love science and the pursuit of knowledge. She is an active supporter of her school community and the community of science teachers in Maryland. She is excited to start working toward full implementation of Next Generation Science Standards in her classes!

Rodney Olson is the science department chair at Crespi Carmelite High School in Encino, California, where he teaches astronomy, physics, and AP Physics C. He also teaches geometry during summer school. In the past at Crespi, he has also taught physical science and chemistry. Rodney developed the yearlong astronomy course himself, and it is approved by the University of California system. Once a month, Rodney takes his astronomy students to the nearby mountains for nighttime observations with the school’s 11-inch, computer-controlled telescope. In the fall of 2013, Rodney became a National Board Certified Teacher. Rodney has taught multiple subjects in multiple states, and in both public and private high schools as well as coed and single-sex schools (both all-boys, and all-girls). His teaching career began in 1995, when he began teaching physical science, chemistry, and physics at Westbrook-Walnut Grove High School in Walnut Grove, Minnesota. There he learned how to teach in a block schedule. Rodney then moved to St. Francis High School in La Canada, California, where he taught physical science, chemistry, physics, AP Physics B, geology, algebra, trigonometry, and calculus. Rodney helped bring block scheduling to St. Francis and he also traveled across the Southern California area to train other schools and teachers how to utilize block scheduling. He moved to Wisconsin in 2005 to teach physics at Divine Savior Holy Angels High School in Milwaukee. Rodney founded the Science Olympiad program at Divine Savior and ran the astronomy portion of the Milwaukee Regional Science Olympiad competition. Since 2006, Rodney has been at Crespi Carmelite High School and is on the technology committee. Rodney has striven to improve his own teaching as well as that of fellow physics teachers. To that end, Rodney has given numerous presentations at the Occidental College Physics Teachers’ Meeting. His talks have ranged from analyzing the jumps of legendary stuntman Evel Knievel to how to use a 60-foot solar balloon to teach buoyancy. Rodney’s interest in science education was sparked by his own high school science teachers as well as his astronomy professors at the University of Minnesota, who had him teach the introductory astronomy laboratory course. He taught that course for three years and, based on his enjoyment of teaching that course, decided to pursue an education degree upon graduation. While working on his teaching degree, Rodney served as an adjunct faculty member of the physics department at Winona State University. A native of Blaine, Minnesota, Rodney received his BS in Astrophysics and BS in Physics from the University of Minnesota and his BS in Physics Teaching from Winona State University.

In addition to teaching physics and chemistry for four years, Harold Pratt has served in a number of local and national education positions. He was a senior program officer at NRC for the National Science Education Standards Project and spent three years as the director of science projects for the Center for Science, Mathematics, Engineering Education (CSMEE). He was the executive director of curriculum for the Jefferson County (CO) Public Schools and science coordinator for 23 years. He co-authored three science textbooks and a book on educational leadership, and has published numerous articles and book chapters. He was selected by the National Science Education Leadership Association (NSELA) as the first recipient of the Nation's Outstanding Science Supervisor Award. He served as president of NSTA in 2001-2002 and was honored by NSTA with the Distinguished Service to Science Education Award in 1999 and the Carlton Award in 2005.