教学的目的是让学生掌握知识、提高能力,培养学生的创新意识,使学生具有健康的人生观和价值观。然而,在高考、中考的指挥棒下,很多教师的课堂变得简单化了,有的教师的课堂仍然以教师传授知识、学生模仿为主。题海战术在中学数学课堂屡见不鲜,教师对数学教学的本质缺乏深刻的认识。本文通过案例分析详细地阐述了教学中应如何抓住数学教学本质,从而提高课堂效率。 The purpose of teaching is to enable students to master knowledge and improve their ability to cultivate students’ sense of innovation so that students have a healthy outlook on life and values. However, under the entrance exams and entrance exams, many teachers have simplified their classrooms. Some teachers still use teachers to impart knowledge and imitate students. The question of sea tactics is not uncommon in middle school mathematics classroom, and teachers lack a profound understanding of the nature of mathematics teaching. This article elaborates in detail how to seize the essence of mathematics teaching in teaching by case analysis, so as to improve classroom efficiency.