条件概率是高中数学课程改革中的新增内容,是概率论中的一个重要概念,在条件概率教学过程中,笔者感觉到学生难以清楚地理解条件概率、积事件概率等概念,特别是在求解有关问题时,往往无处着手,出现思维障碍,从而影响了学生的学习积极性.究其原因,基本上是对条件概率概念没有很好地理解:在教学过程中,教师也没有引起重视,如何把握这一内容的教学,是每一个高中数学教师 Conditional probability is a new content in high school mathematics curriculum reform. It is an important concept in probability theory. In the process of conditional probability teaching, I feel that it is difficult for students to understand the concept of conditional probability and product event probability clearly, especially in solving When it comes to related issues, they often have no place to start and have problems in thinking, thus affecting students’ enthusiasm for learning. The reason is basically that the concept of conditional probability is not well understood: in the teaching process, teachers have not paid much attention to how Teaching to grasp this content is every high school mathematics teacher