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教学内容:苏教版义务教育教科书数学五年级上册第99~100页。教学目标:1.使学生初步理解用字母表示数的方法,会用含有字母的式子表示简单的数量关系、计算公式;2.使学生经历用含有字母的式子表示简单数量关系的过程,感受数学表达方式的严谨性、概括性以及简洁性:3.使学生经历自主探索乘法简写方法的过程,体会数学蕴含的文化力量。教学流程:一、引入1.同学们,《西游记》看过吧,里面有件非常厉害的宝物叫乾坤袋,可以装很多的东西。今天老师也带来了一个乾坤袋,里面可是装着很多的数学知识呢。
Teaching content: Jiangsu Education Edition compulsory education textbook fifth grade grade 99 ~ 100 pages. Teaching objectives: 1. To enable students to initially understand the method of using the number of letters, will use letters containing the formula that a simple relationship between quantity and formula; 2. To make students experience the use of letters containing formulas that the relationship between the number of simple process, Feel the rigor, generality, and simplicity of mathematical expressions: 3. Make students experience the process of autonomously exploring multiplicate abbreviations and understand the cultural forces inherent in mathematics. Teaching process: First, the introduction of 1. Students, “Journey to the West,” read it, there is a very powerful treasures called heaven and earth bag, you can hold a lot of things. Today, the teacher also brought a universe bag, which contains a lot of mathematical knowledge yet.