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如何使学生拥有独立自主的思考空间,实现学生自己实质性的数学思维活动,从而使学生的数学创新和实践能力等得到培养,是教师在教学设计过程中必须认真考虑的问题.围绕这一理念,笔者对北师大版数学八年级下册“探索三角形相似的条件”的课堂教学进行了设计.1 背景分析1.1 学习任务分析相似三角形的判定.是在学完相似三角形的基础上,进一步研究相似三角形的本质,以完成对相似三角形的定义、判定的全面研究.它还是研究相似三角
How to make students have independent thinking space to realize their own substantive mathematical thinking activities, so as to enable students to innovate in mathematics and practice ability to be cultivated, is the teacher in the process of teaching design must seriously consider the issue around this idea, The author of the Beijing Normal University version of mathematics eighth grade under the book “to explore the similar conditions of the triangle,” the classroom teaching design.1 background analysis 1.1 learning task analysis similar to determine the triangle is completed on the basis of similar triangles for further study Similar to the nature of triangles to complete the definition of similar triangles, a comprehensive study of judgments. It is also a study of similar triangles