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• Animations available at http://www.astrophysik.uni-kiel.de/~hhaertel/CLOC_doc/CLOC_doc_uk/index.htm |
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This activity is aimed at conceptual understanding of electric circuit through the concept of surface charges. The explanation can be found in Haertl, H.: The electric Circuit as a System: A New Approach, Eur.J.Sci.Educ., 1982, vol.4, No.1, 45-55 Haertl, H.:Conceptual learning of Circuit, available at http://www.astrophysik.uni-kiel.de/~hhaertel/CLOC_doc/CLOC_doc_uk/index.htm Sherwood, B., A., Chabay, R., W. A unified treatment of electrostatics and circuits, available at http://matterandinteractions.org/Content/Articles/circuit.pdf. The activity should be guided by the teacher who carries out an interactive discussion in order to explain the basic mechanism of electric current in a circuit and the related concepts. Within the interactive discussion teacher ask questions and students try to formulate answers. The important point is not to give the answer but try to make students think to come to the answer by themselves. Therefore the questions are formulated to revise the already known facts towards new situations and coherence. Here is a possible scenario how to carry out the activity with the questions and corresponding answers. The first set of questions is aimed at the revision of the already known facts. |
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