最近笔者有机会开设一节圆的复习研讨课,由于备课前结合本班学情认真挑选了例题,并对所有例题预设了系列追问,而且在倡导学生开展解后回顾反思,执教时课堂氛围热烈,师生互动多、对话深入,也赢得听课老师好评,本文简介该课的备课思路,并给出相关反思,与同行研讨.一、“圆的复习课”备课选题及说明备课说明:由于上节课我们对圆综合题中切线证明问题进行了方法交流,这节课对圆综合题中求线段长问题进行复习.通过课前调研了解到:对一些简单的题目 Recently, the author has the opportunity to open a round of review seminars, because the pre-preparation class carefully selected examples of the combination of the class, and set a series of questions for all examples, and after advocating the students to solve the review, reflection, classroom atmosphere when coaching Warmly, the teachers and students interacted with each other in a deep dialogue, and won praise from the tutors. This article gives an introduction to the idea of ​​preparation for the lesson, and gives relevant reflections to discuss with peers. I. “Circular Review Lessons” Preparing Lessons and Explaining Preparing Lessons Explanation: As a result of the previous lesson, we conducted a methodological exchange of the tangent proof questions in the round comprehensive question. This lesson reviews the question of the length of the line segment in the round comprehensive question. Through pre-study investigation we learned that: For some simple topics