The Characteristics of Verbal Interactions According to Students' Cognitive Levels and Openness Levels of Tasks in Thinking Science Activity (Thinking Science 활동에서 과제의 개방도와 학생들의 인지수준에 따른 언어적 상호작용의 특징)
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- Journal of Science Education
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- v.36 no.2
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- pp.216-234
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- 2012