离散型随机变量数学期望的教学设计与实践  

Teaching design and practice of discrete random variable mathematics expectation

作　　者：滕兴虎[1] 赵颖[1] 陈桂东[1] 寇冰煜[1] 

机构地区：[1]解放军理工大学理学院,江苏南京211101

出　　处：《高师理科学刊》2016年第6期71-74,共4页Journal of Science of Teachers＇College and University

基　　金：解放军理工大学教学改革现实课题(JW1514)

摘　　要：教学实践中,根据真实案例引入离散型随机变量数学期望,通过对离散型数学期望概念的讨论,促进学生对数学期望内涵的理解.改造传统例题,利用数学软件解决期望问题,有力的培养学生的建模意识、数学软件应用能力等综合素质,取得了较好的教学效果.By introducing a true example,the concept of the discrete random variable mathematical expectation is discussed,and it help the students to understand the concept.By transforming a traditional example and solving a problem using mathematics software,the comprehensive qualities of student are developed powerfully.Also,better teaching effect is achieved in the teaching practice.

关 键 词：案例式教学 离散型随机变量 数学期望 绝对收敛 

分 类 号：O211.9[理学—概率论与数理统计] G642.0[理学—数学]