갈릴레오의 자유낙하 사고실험에 대한 중학생들의 사고과정 분석 = Analysis of Middle School Students` Thinking Processes in Galileo`s Free Fall Thought Experiment

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate students` actual thinking processes during conceptual change about free fall. To do this, middle school students were made an interview designed based on a teaching model using thought experiment. From the study, it was found that strategy for generating cognitive conflict by suggesting opposite views was not effective. However, many students changed their prior conceptions when new explanatory hypothesis, which explained why heavy object and light object fall equally, was introduced. And finally, even though students realized that the changed idea did not accord with the real world, they could easily solve that problem by observing demonstration designed to show the effect of air resistance.