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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48～49页。教学目标:1.使学生经历探索间隔排列的两种物体数量关系的过程,感知间隔排列中两种物体个数之间的规律。2.初步培养学生用数学眼光观察周围事物、用数学思维分析生活现象的意识及能力,学会用发现的规律解决简单的实际问题。教学重点:学生通过探索间隔排列中两种物体个数之间的关系,找出间隔排列的规律,为学习周期规律作准备。教学难点:利用规律解释生活中的现象,解决简单实际问题。
Teaching content: The Soviet version of “compulsory education curriculum standard experimental textbook mathematics” fourth grade on the first 48 ~ 49 pages. Teaching Objectives: 1. To enable students to explore the relationship between the number of objects to explore the relationship between the interval of the process of perception interval between the number of two objects in the law. 2. Initially train students to use the school of vision to observe the surrounding things, using mathematical thinking analysis of the consciousness and ability of life phenomena, learn to find the law to solve simple practical problems. Teaching focus: students explore the relationship between the number of two objects in the interval arrangement to find out the rules of the arrangement of intervals in preparation for the learning cycle rules. Teaching difficulties: the use of laws to explain the phenomenon of life, to solve simple and practical problems.