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Home > Wen Yuan (Primary School Edition) > 2020 No.05 > 数因用而生——1.1正数和负数

  • 数因用而生——1.1正数和负数

    Author(s)：

    王改

    Publication Title：

    Wen Yuan (Primary School Edition) 2020 No.05

    Affiliations：

    内蒙古自治区呼和浩特市第三十四中学 内蒙古 呼和浩特 010051

    Abstract：

    数与式是数学中非常重要的部分,而式的研究是构建在数的基础上的,所以说数是基石.整个初中阶段研究的数是在实数的范围内,学生在小学阶段学习的数虽然已经涉及了负数,但还没有上升到有理数概念上,所以初中的第一章就重点研究有理数,研究它的概念、分类、运算以及应用.第一章的第一节是正数和负数,也是初中的第一节课,它是初中和小学的衔接,起到承前启后的作用,在小学了解负数的基础上进一步研究负数的作用,让学生体会负数的产生源于实际的需要和数学运算的需要,从而感受到学习负数是很有必要的.

    Keywords：

    学习;研究

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    [1] 王改.数因用而生——1.1正数和负数[J].Wen Yuan (Primary School Edition),2020(05),.

文渊(小学版)
Wen Yuan (Primary School Edition)

Language: 中文

CN：11-9274/G

ISSN：2096-6261

Publication Frequency: 月刊

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