The Acquisition of Qualitative Physics Knowledge During Textbook-Based Physics Training

Abstract

Several earlier investigations found that teaching standard textbook physics causes only moderate change in qualitative understanding. Manyinvestigations have tried to explain why teaching textbook physics results in so little learning of qualitativephysics. In contrast, we examined cases where learning did occur and tried to understand them, hoping that this might help us to understand how to support such learning. We developed computerized simulation models of both qualitative, conceptual problem solving and quantitative problem solving and used them to assess changes in students' qualitative knowledge as they learned textbook physics. In many cases, qualitative knowledge has been acquired on the basis of information explicitly presented in the textbook. However, we also found cases where learning of qualitativephysics took place on the basis of information only implicitly addressed in the instruction. Even more important, in various cases this newly acquired qualitative knowledge led to a less frequent use of incorrect qualitative pre-knowledge. This suggests that successfull students did not only learn what has been explicitly presented in the instruction. Rather, they did also learn by deriving and constructing information left implicit in the instruction, relating this information to their pre-knowledge and possibly re#ning and modifying their pre-knowledge in those cases where con#icts became aware.

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