How Should Energy Be Defined Throughout Schooling?
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The question of how to teach energy has been renewed by recent studies focusing on the learning and teaching progressions for this concept. In this context, one question has been, for the most part, overlooked: how should energy be defined throughout schooling? This paper addresses this question in three steps. We first identify and discuss two main approaches in physics concerning the definition of energy, one claiming there is no satisfactory definition and taking conservation as a fundamental property, and the other based on Rankine’s definition of energy as the capacity of a system to produce changes. We then present a study concerning how energy is actually defined throughout schooling in the case of France by analyzing national programs, physics textbooks, and the answers of teachers to a questionnaire. This study brings to light a consistency problem in the way energy is defined across school years: in primary school, an adapted version of Rankine’s definition is introduced and conservation is ignored; in high school, conservation is introduced and Rankine’s definition is ignored. Finally, we address this consistency problem by discussing possible teaching progressions. We argue in favor of the use of Rankine’s definition throughout schooling: at primary school, it is a possible substitute to students’ erroneous conceptions; at secondary school, it might help students become aware of the unifying role of energy and thereby overcome the compartmentalization problem.
KeywordsDefinition of energy Teaching progression Conservation of energy Rankine
I would like to thank Yaron Lehavi, Valérie Munier, Muriel Guedj, David Cross and André Ranquet for their helpful comments on the manuscript and their suggestions.
- Bächtold, M. & Guedj, M. (2014). Teaching energy informed by the history and epistemology of the conceptwith implications for teacher education. In M. Matthews (ed.), International handbook of research in history, philosophy and science teaching (p. 211–243). Berlin, Heidelberg: Springer.Google Scholar
- Bächtold, M., Munier, V., Guedj, M., Lerouge, A., & Ranquet, A. (2014). Quelle progression dans l’enseignement de l’énergie de l’école au lycée ? Une analyse des programmes et des manuels. Recherches en Didactique des Sciences et des Technologies, 10, 63–92.Google Scholar
- Bächtold, M. & Munier, V. (2014). Enseigner le concept d’énergie en physique et éduquer à l’énergie: rupture ou continuité. Skholê, 18(1), 21-29.Google Scholar
- Colonnese, D., Heron, P., Michelini, M., Santi, L., & Stefanel, A. (2012). A vertical pathway for teaching and learning the concept of energy. Review of Science, Mathematics and ICT Education, 6(1), 21–50.Google Scholar
- Cotignola, M., Bordogna, C., Punte, G. & Cappannini, O. (2002). Difficulties in learning thermodynamic concepts: are they linked to the historical development of this field?. Science & Education, 11, 279–291.Google Scholar
- Duit, R. (2014). Teaching and learning the physics energy concept. In R. Chen, A., Eisenkraft, D., Fortus, J.,Krajcik, J., Nordine & A. Scheff (Eds.) Teaching and learning of energy in K-12 education (p. 67–85). Heidelberg, New York: Springer.Google Scholar
- Eisenkraft, A., Nordine, J., Chen, R., Fortus, D., Krajcik, J., Neumann, K. & Scheff, A. (2014). Introduction: why focus on energy instruction? In R. Chen, A., Eisenkraft, D., Fortus, J., Krajcik, J., Nordine & A. Scheff (Eds.) Teaching and learning of energy in K-12 education (p. 1–11). Heidelberg, New York: Springer.Google Scholar
- Elkana, Y. (1974). The discovery of the conservation of energy. London: Hutchinson Educational.Google Scholar
- Feynman, R. (1963). The Feynman lectures on physics, vol. I. Mainly mechanics, radiation, and heat. Reading, MA: Addison-Wesley.Google Scholar
- Kuhn, T. (1959). Energy conservation as an example of simultaneous discovery. In M. Clagett (Ed.), Critical Problems in the History of Science (pp. 321–356). Madison: The University of Wisconsin Press.Google Scholar
- Lacy, S., Tobin, R.G., Wiser, M. & Crissman, S. (2014). Looking through the energy lens: a proposed teaching progression for energy in grades 3-5. In R. Chen, A., Eisenkraft, D., Fortus, J., Krajcik, J., Nordine & A. Scheff (Eds.) Teaching and learning of energy in K-12 education (p. 241–265). Heidelberg, New York: Springer.Google Scholar
- Lehavi, Y., Eylon, B., Hazan, A., Bamberger, Y. & Weizman, A. (2012). Focusing on changes in teaching about energy. Proceedings of the World Conference on Physics Education 2012, WCPE. Ankara: Pegem AkademiGoogle Scholar
- Lewis, E. & Linn, M. (1994). Heat energy and temperature concepts of adolescents, adults, and experts: implications for curricular improvements. Journal of Research in Science Teaching, 31(6), 657-677.Google Scholar
- Margenau, H. (1950). The nature of physical reality. New York: McGraw-Hill.Google Scholar
- Millar, D. (2005). Teaching about energy. Department of Educational Studies: research paper 2005/11. Retrieved from: www.fisica.uniud.it/~stefanel/PFDS/EnergiaProblappr/Millar.pdf. Accessed 13 Feb 2017.
- National Research Council (1996). National science education standards. Washington, DC: National Academy Press.Google Scholar
- NGSS Lead States (2013). Next Generation Science Standards: for states, by states. Washington, DC: The National Academies Press.Google Scholar
- Poincaré, H. (1902). La science et l’hypothèse. Paris: Flammarion. (1968).Google Scholar
- Rankine, W. (1855). Outlines of the science of energetics. The Edinburgh New Philosophical Journal, 2(3), 121–141. Accessed July-October 1855.Google Scholar
- Smith, C. (2003). Force, energy, and thermodynamics. In M. J. Nye (Ed.), The Cambridge history of science: the modern physical and mathematical sciences (pp. 289–310). Cambridge: Cambridge University Press.Google Scholar
- Trellu J.-L. & Toussaint J. (1986). La conservation, un grand principe. Aster, 2, 43–87.Google Scholar
- Vince, J., & Tiberghien, A. (2012). Enseigner l’énergie en physique à partir de la question sociale du défi énergétique. Review of Science, Mathematics and ICT Education, 6(1), 89–124.Google Scholar