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除数是两、三位数的除法,是多位数四则运算的最后一个内容,是对前面学习过的有关知识的深化和概括。在小学数学整数、小数、分数的计算教学中起着承上启下的作用。通过复习,要使学生全面、系统地掌握所学基础知识和基本技能;熟练地掌握除数是两、三位数除法计算法则和试商的方法,并能进行口算和笔算;理解商不变的性质,并能熟练地运用这一性质进行有关的口算和简便运算。根据上述教材的特点和复习要求,笔者提出如下的复习建议。
The divisor is the division of two and three digits and is the last element of the four-digit operation of multiple digits, which is the deepening and generalization of the relevant knowledge learned earlier. In elementary mathematics integer, decimal, fractional calculation of teaching plays a role in the context. Through the review, to enable students to comprehensively and systematically master the basic knowledge and basic skills learned; skillfully master the divisor is two, three-digit division of the law and test method, and the mouth and pen calculation; understanding of the same business Nature, and proficiency in the use of this nature of the relevant calculations and simple calculations. According to the characteristics of the teaching materials and review requirements, the author proposed the following review suggestions.