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一、整数部份分几个阶段教学?各个阶段的侧重点是什么?整数是最基础的数学知识。为了让学生切实打好基础,根据数学知识的内在联系和学生的认识规律,结合我国记数的特点,教材把整数部份的内容划分为“二十以内”、“百以内”、“万以内”、“多位数”四个阶段(即循环圈)。这样,可以使学生的认识得到必要的循环,逐步深化。显然,四次循环不是简单的重复,而是每次各有侧重。
First, the integer part of the teaching in several stages? What is the focus of each stage? Integer is the most basic mathematical knowledge. In order to lay a solid foundation for students, according to the internal connection of mathematics knowledge and the cognition of students, combined with the characteristics of our count, the textbook divides the contents of the whole part into “less than twenty,” “less than one hundred, ”,“ Multi-digit ”four stages (ie circle). In this way, students can get the necessary understanding of the cycle, and gradually deepened. Obviously, the four cycles is not a simple repetition, but each have their own focus.