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在数学习题课中,注重对问题的变式拓展,有目的地进行辨析教学既是我们教师教学的一个优良传统,也是新课程背景下引发学生自主探究、合作交流的重要途径;适时进行一些“貌合神离”题的辨析,触类旁通,帮助学生在解题实践中学会积累解题模式,对于提高学生的认知层次、强化探索能力、发展思维品质,以及摒弃题海战术,将是十分有效的。本文是笔者上的一堂导数习题课的课堂实录(教研组内研讨课),课内课后都有很多感悟,愿与同
In mathematics exercises, paying attention to the development of the variant of the problem, discriminating purposeful teaching is not only an excellent tradition of our teachers ’teaching, but also an important way to arouse students’ independent exploration and cooperation and exchange under the new curriculum background. It is very effective for students to learn to accumulate problem solving modes in solving practical problems. It is very effective for improving students’ cognitive level, enhancing their exploring ability, developing their thinking qualities, and abandoning the sea tactics. This article is a derivative of the author on the class exercises in the classroom record (seminars within the teaching and research group), after class have a lot of sentiment, is willing to work with