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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 56, Number 1
JKCSEZ 56(1)
February 20, 2012 

The Level of Secondary School Science Teachers’ PCK on Density and the Characteristics of Eight Aspects of CoRe by the Level of PCK

중등학교 과학 교사의 밀도에 관한 내용교수지식 수준과 그에 따른 내용 표상의 구성 요소별 특징
Sang Won Kwak, Byung Soon Choi

곽상원, 최병순
pedagogical content knowledge, content representation, density
The purposes of this study were to evaluate the level of PCK which middle school science teachers have on the concept of density and to analyze the characteristics of science teachers' content representation on the concept of density by their PCK level. For that purpose, 20 science teachers were selected and asked to answer the questionnaire on the eight aspects of CoRe. Results of this study indicated that the science teachers’ PCK levels were low in general and evaluated as below average. The differences among the characteristics of science teachers’ content representation by their PCK level were high in seven aspects of CoRe but the one aspect of the understanding of learner’s preconception. These differences were analyzed and the patterns shown by the science teachers in eight aspects of CoRe were drawn in this study. It was also found that the characteristics drawn in eight aspects of content representation shown by the teachers whose PCK level was medium were close to those whose PCK level was low rather than high in most aspects of CoRe.
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