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复习是对与将要讲授内容相关联的先前知识进行回顾,目的是为学生学习新知识做好铺垫。这个铺垫的过程在课堂教学中占据的时间虽然较短,但是至关重要。复习可以激活经验,以旧引新。学生的数学学习是运用已有知识不断获取新知识的过程,而复习铺垫则能激活学生处于“休眠”状态的旧知识与经验,促进知识的迁移,为新知识提供“固着点”。这样学生很快就能发现新知识的性质,有助于他们形成知识系统,减轻理解和记忆的负担。复习能够帮助学生树立自信,消除胆怯情绪。
Review is a review of previous knowledge associated with the content to be taught, with the objective of paving the way for students to learn new knowledge. This paving process takes less time in class teaching, but it is of crucial importance. Review can activate the experience, the old introduction of new. Students’ mathematical learning is the process of using the existing knowledge to obtain new knowledge constantly. However, the reviewing can activate the old knowledge and experience of students in “dormancy” state, promote the transfer of knowledge, and provide the “new knowledge” ". Students will soon discover the nature of new knowledge, help them form a knowledge system, and reduce the burden of understanding and memory. Review can help students build self-confidence, eliminate timid emotions.