入选理由:如何将教学进行结构化设计,教师作了一些有益的探索。一、目标分析本节课的教学目标如下: 掌握勾股定理的逆定理,会用它判定一个三角形是否是直角三角形;会运用勾股定理的逆定理解决有关证明与计算问题通过对勾股定理逆定理的证明过程的探究, 体验、感悟知识的生成和发生过程,体会从特殊到一般的认识规律 Reasons for inclusion: how to design the teaching in a structured way, teachers have made some useful explorations. First, the goal analysis The teaching objectives of this lesson are as follows: To master the inverse theorem of the Pythagorean theorem, we use it to determine whether a triangle is a right-angled triangle; the inverse theorem of the Pythagorean theorem will be used to solve the problem of proof and calculation through the Pythagorean theorem. The exploration of the proof process of the inverse theorem, experiencing and understanding the process of knowledge generation and occurrence, and understanding the law of understanding from special to general