一、问题的提出在初三复习中,圆综合题教学对教师具有较强的挑战性,它不仅能够综合考查学生对圆的相关知识的掌握情况,还可顺势考查学生多种数学能力,如几何直观、运算能力和推理能力.其中,对推理能力的考查尤为突出.这里,笔者通过对一道圆综合题的教学案例的分析,谈谈对发展学生推理能力的点滴思考. First, the problem raised In the third year of review, the round of integrated teaching of teachers with a more challenging, it not only comprehensive examination of the students grasp of the relevant knowledge of the circle, but also take advantage of the ability to test a variety of mathematical skills, such as Geometry intuition, computing abilities and reasoning ability, among which, the examination of reasoning ability is particularly outstanding.Here, the author analyzes the teaching case of a round comprehensive question, and talk about the thought of developing students’ reasoning ability.