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为了激发学生的学习兴趣,我首先通过古代的一个小故事,引出本节课的研究课题,创设了有利于学生探究的问题情景,然后利用多媒体课件引导学生亲自动手操作,经历“实践—抽象—再实践”的探索过程,体验知识的运用,并结合小组合作探讨,教师指导等形式,注意启发学生大胆探讨,运用观察、分析、比较、归纳等方法,层层深入地让学生掌握利用相似三角形的有关知识测量旗杆高度的三种方法.一、案例描述师:我国古代有一个人,想了很多办法,都无法把房间里的
In order to stimulate students’ interest in learning, I first introduced the subject of this lesson through an ancient story, created a problem scenario that is conducive to student inquiry, and then used multimedia courseware to guide students to personally operate, experience “ practice - abstract - Re-explore the ”exploration process, experience the use of knowledge, and discuss the group cooperation, teacher guidance and other forms, pay attention to inspire students to explore boldly, use observation, analysis, comparison, induction and other methods, in order to allow students to master the use of layers There are three methods for measuring the height of a flagpole with knowledge of similar triangles. I. Case Descriptor: There was one person in ancient China who thought many ways and could not put the room