Analyses and clearing the perspective of curricula that promotes the competency of reasoning and decision making based on evidence

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The purpose of the research is to clarify the standard flow of Japanese science lessons presented in science textbooks in Japan and to present a model of the science lessons. We conducted analyses of the responses to the essay type task of TIMSS-Science and description analysis of science textbooks and found the feature that description of a textbook has few "why" questions and many questions it is easily decided from the result of observation or an experiment that conclusions will be is became clear. Based on such findings, we developed and presented a practice model of the science lessons