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Taibu, Rex; Rudge, David; Schuster, David – Physical Review Special Topics - Physics Education Research, 2015
The term "weight" has multiple related meanings in both scientific and everyday usage. Even among experts and in textbooks, weight is ambiguously defined as either the gravitational force on an object or operationally as the magnitude of the force an object exerts on a measuring scale. This poses both conceptual and language difficulties…
Descriptors: Textbooks, Physics, Science Instruction, Introductory Courses
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Friedrichsen, Patrica; Van Driel, Jan H.; Abell, Sandra K. – Science Education, 2011
In this position paper, we examine the science teaching orientation component of the S. Magnusson, J. Krajcik, and H. Borko (1999) pedagogical content knowledge (PCK) model for science teaching. We trace the origin of the construct in the literature, identifying multiple definitions that have lead to ambiguity. After examining published studies…
Descriptors: Figurative Language, Position Papers, Pedagogical Content Knowledge, Science Instruction