This analysis was conducted on 29 secondary school science lessons which were videotaped in Hiroshima prefecture. The study focused on interactions between teacher and students; their interactions were analyzed with respect to Initiation-Response- Feedback/follow up (IRF) structure (Sinclair and Coulthard, 1975) and Initiation-Response-Evaluation (IRE) structure (Mehan, 1979). Through this analysis, it was revealed that the frequency with which the IRF structure was used amounted to more than twice as many as the frequency of the IRE structure. The teachers didn’t give any immediate evaluations, whether or not the students’ responses were correct. The teachers seemed to try to deepen the reasoning of whole class by asking a question. The IRE structure was more frequently seen in the classes which relied on the lecture format; on the other hand, the IRF structure was more frequently seen in the classes that centered on experimentation and/or observation.The questions that teachers asked in the lessons were also analyzed with a revision of Blooms’ Taxonomy (Anderson, L.W. and Krathwohl, D.R., 2001), which consisted of 6 dimensions “remembering”, “understanding”, “applying”, “analyzing”, “evaluating” and “creating”.
With consideration of Anderson and Krathwohl’s framework, the results revealed that, “applying” , “analyzing” and “creating”, which could be regarded as high rank questions, were frequently observed in the lessons in which an experiment or an observation were mainly conducted.Those high ranked questions were also observed in the lessons in which the main contents were discussing the result of the experiment and the conclusion. The question which was regarded as “creating” and was the highest ranking in a revision of Blooms’ Taxonomy was especially noted at the introduction of the experiment.
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