复习课形式各种各样,各不相同,如何高效而紧凑地上好一堂复习课,帮助学生系统地复习所学内容,提高综合解题的技能,培养学生综合思维的能力,这些都大有研究和探讨的必要。排列、组合是《数理统计》的基础知识,它与日常生活也有着紧密的联系,学习本章内容对培养学生的逻辑思维能力有着重要的作用。在多年教学中,我发现学生学习这一章时,两个基本原理内容容易混淆,列式时容易犯重复 There are various types and different forms of review classes, how to efficiently and compactly review the lessons, help students systematically review what they have learned, improve their skills in comprehensive problem solving, and develop their ability to synthesize their thinking. And explore the necessary. Arrangement, combination is the basic knowledge of “mathematical statistics”, and it is also closely linked with daily life, learning this chapter to develop students' logical thinking ability plays an important role. In many years of teaching, I found that students learn this chapter, the two basic principles of content easy to confuse, easy to make repetition