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教学内容:苏教版《义务教育课程标准实验教科书·数学》四年级上册第79～81页。背景分析:“游戏规则的公平性”是苏教版四年级上册第9单元“统计与可能性”的教学内容,是在学生三年级下册认识了可能性相等和可能性有大小的基础上进行教学的。“游戏规则的公平性”实际上是“不等可能性和等可能性”知识的延伸和拓展,即不等可能性——游戏规则不公平,等可能性——游戏规则公平。本节课无论在生活经验上还是认识基础上学生都有一
Teaching content: The Soviet version of “compulsory education curriculum standard experimental textbook · Mathematics” fourth grade on the first 79 ~ 81 pages. Background Analysis: “The fairness of the rules of the game” is the teaching content of the ninth unit of the fourth grade of the Sujiao Edition “Statistics and Possibilities ”, is in the third grade of the students to recognize the possibility of equality and the possibility of Size based on teaching. “The fairness of the rules of the game ” is actually “unequal possibility and equal possibility ” The extension and expansion of knowledge, that is, the possibility of unequal - the rules of the game unfair, such as the possibility - the rules of the game fair . This lesson is based on both life experience and understanding of students have one