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一、教学内容苏教版小学数学四年级下册第54页至第55页的内容。二、教材分析(一)教材简析乘法分配律是本单元的重点。在此之前,学生已经学过乘法的交换律和结合律,以及应用这些运算律进行简便运算。进一步学习乘法分配律,不仅有利于学生从整体上了解整数范围内的基本运算律,而且有利于他们更灵活地解决计算问题,通过用两种方法解决同一个问题,引导学生比较列出的两道算式,发现
First, the teaching content of the Soviet version of elementary school mathematics grade four volumes 54 to 55 of the content. Second, the textbook analysis (a) textbook analysis Multiplication distribution law is the focus of this module. Before that, students had already studied the law of exchange and combination of multiplication, and applied these arithmetic laws for easy operation. Further study of the multiplication assignment law not only helps students to understand the basic arithmetic law within the integer range as a whole, but also helps them solve the calculation problem more flexibly. By using the two methods to solve the same problem, the students are guided to compare the two Road formula, found