一、教学案例一2016年4月,笔者参加职称课堂能力考核,抽中了《圆的认识》这一内容,心中窃喜不已,原因有两个:第一,笔者一直任教高年级,对教材很熟悉,教学设计都有现成的;第二,笔者抽到的上课时间是下午第二节,准备时间比较充裕。于是,第二天,笔者信心百倍地走进了指定班级。几分钟的开场白和精心创设情境后,笔者激动地带领学生进入自己认为本节课最大的“亮点”——画圆。笔者说:“要走进圆的世界研 First, the teaching case a April 2016, the author to participate in the title of the ability to assess the classroom, pumping in the ”round understanding“ of this content, the hearts of euphemism endless, for two reasons: First, I have taught high school, textbooks Very familiar with the design of teaching are readily available; Second, the author’s class time is the second section of the afternoon, preparation time is more abundant. So, the next day, I confidentially entered the designated class. After a few minutes of opening ceremony and careful creation of the situation, the author excitedly led the students to enter their own ”highlights “ - the painting circle. The author said: ”To enter the round world research