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“约数和倍数的意义”（第一课时）是五年制小学数学教科书第八册的内容。这部分知识是在学生认识自然数及整除知识的基础上进行教学的。教材先在复习整除意义的基础上用定义对整数加以概括，并用字母表示相除的两个数，强调除数不能是０。这样使学生对整除意义的理解在原...
The Meaning of Divisors and Multiples (Lesson 1) is the eighth volume of a five-year primary school mathematics textbook. This part of knowledge is based on students' knowledge of natural numbers and the division of knowledge on the basis of teaching. The textbook first summarizes integers by reviewing the meaning of divisibility, and alphanumeric the two numbers, emphasizing that the divisor can not be zero. This allows students to understand the meaning of divisibility in the original ...