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本文是依据人教版《数学》九年级上册第二十五章“概率初步”第二节第一课时设计的.一、教学内容的说明1.教学内容分析.本节课是列举法求概率的第一节课,通过列举所有等可能的结果来计算随机事件发生的概率.在教学过程中要尽量鼓励和引导学生主动探究和构建知识结构.利用分类的方法有序地列举,亲身经历简单枚举、列表和画树状图等方法的形成过程,并在应用中逐渐加深理解.2.学生认知基础这节课的教学对象是数学分层教学的A班.该班
This article is based on the People’s Education Edition “Mathematics” ninth grade on the twenty-fifth chapter “Probability Preliminary” section second day of the first class design .A teaching content description 1.Teaching content analysis .This lesson is enumeration method Find the probability of the first class, by enumerating all the possible results to calculate the probability of occurrence of random events in the teaching process should try to encourage and guide students to explore and construct the knowledge structure.Using the classification of the orderly enumeration, personally Through the process of simple enumeration, list and drawing dendrogram and other methods, and gradually deepen the understanding of the application .2 students cognitive basis teaching in this lesson is mathematics level teaching A class.