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我是用发现法来设计这一节课的教学的：先引导学生发现圆内接四边形的性质，再启发学生发现它的证明．整个过程中注意相关知识间的内在联系，以形成新的知识结构．1提出课题一般的圆内接四边形具有什么性质？并说明我们的做法：先考察特殊的圆内接四边形具有什么共同性质，看一
I used the discovery method to design the teaching of this lesson: to guide the students to discover the nature of the circle inscribed in the quadrangle, and then to inspire students to find it. Throughout the entire process, we pay attention to the intrinsic relationship between relevant knowledge to form a new knowledge structure. 1 What is the nature of the quadratic incircle in general? And explain our approach: first examine what common properties of the special circle inscribed quadrilaterals are.