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教学内容:人教版数学三年级上册72页的例9,完成“做一做”及练习十五的第12、13题。教学目标:知识目标:1.让学生初步掌握用乘除两步计算解决的实际问题的基本结构和数量关系,能迅速地找出中间量(即先求什么)。2.让学生学会解决这类两步计算先求总数的实际问题,初步掌握其解题规律。3.让学生学会借助线段图分析数量关系。能力目标:1.培养学生的画图能力、分析能力、提高思维水平。
Teaching content: PEP mathematics third grade on the 72-page case 9, to complete the “do one” and practice fifteen 12,13 questions. Teaching Objectives: Objectives of Knowledge: 1. To enable students to grasp the basic structure and quantitative relationship of practical problems solved by multiplication and division in two steps, and quickly find the intermediate amount (that is, what to look for first). 2. Let students learn to solve this kind of two-step calculation of the total number of practical problems, preliminary grasp of the problem-solving law. 3. Let students learn to analyze the quantitative relationship with the line segment. Objectives: 1. Students develop drawing skills, analytical skills and improve the level of thinking.