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课题:列举法求概率内容:《义务教育教科书》数学九年级上册第二十五章第二节第一课时教材分析:本节内容是学生在七八年级学习有关频率的基础上,继续学习有关频率与概率初步的知识。本节课首先通过课堂实验活动,让学生体会一个随机事件发生的实验频率,引导学生观察其中的规律,在操作实验与统计中探究知识。为了突破本节难点,采用较为形象直观的树状图法和列表方法来组织学生掌握概率计算的。教学目标:
Question: enumeration method for probability Content: “compulsory education textbook” mathematics ninth grade on the volume twenty-fifth chapter second day first textbook analysis: This section is the content of the students in the seventh and eighth grade based on the relevant frequency, to continue to learn about Preliminary Knowledge of Frequency and Probability. This lesson first of all through the classroom experiment activities, so that students experience a random event frequency of experimentation, and guide students to observe the laws, in the operation of experiments and statistics to explore knowledge. In order to break through the difficulties of this section, we adopt a more vivid and intuitive dendrogram and list method to organize students to master the probability calculation. teaching objectives: