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Heller, Patricia; Finley, Fred – 1989
In order to investigate the nature of students' prior knowledge of current electricity and how they applied their knowledge to different problems, 5 middle school science teachers and 11 elementary school teachers were given a written test that required them to: (1) predict what happens to the brightness of a bulb if a change is made to the…
Descriptors: Classroom Techniques, Electric Circuits, Electrical Systems, Electricity