前不久,某县组织了一次教学研讨活动.活动中,一位授课教师的一个课堂提问引发了与会教师激烈的讨论,笔者由此进行了深入的思考,在此与各位同仁交流切磋,以期共同提高.一、问题的呈现这是浙教版《数学》八年级“中心对称”一节的新授课.授课教师在讲完中心对称的相关概念后,给出这样一个问题:如图1,ABC是正三角形,请问该图形是否是中心对称图形,如果是,请找出对称中 Not long ago, a county organized a teaching seminar. During the activity, a classroom teacher asked a question in the classroom that led to intense discussion among the participating teachers. The author therefore conducted in-depth thinking and exchanged views with colleagues to work together Improve.The first problem is the presentation of the Zhejiao version of “Mathematics” eighth grade “center symmetry ” section of the new lectures.Teachers in the center after the completion of the relevant concepts of symmetry, given such a problem: Figure 1 , ABC is a regular triangle, may I ask whether the graph is a center symmetric graph, if yes, please find the symmetry