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小学二年级数学教材所编排的除数是一位数的除法,包含了一位数除两位,一位数除三、四位数,商中间末尾有0的除法等方面的内容。之所以说它是学习困难儿童学习中的一大难关,有这样几方面的因素:其一,所涉及的知识面广,如乘法口诀求商、表内笔算的除法、数的组成等。其二,操作步骤多,每除一次都有除、乘、减三步操作过程。其三,难点多,需要有较强的理解能力。如试商、商的定位、“余数要比除数小”和“不够商1用0占位”等问题,都根植在“除”的内涵上。这
The second grade mathematics textbooks arranged by the division of the one-digit division, including a digit except two, one-digit addition to three or four digits, the middle of the middle division of 0 and so on. The reason why it is a difficult learning difficulties for children to learn, there are several factors: First, the knowledge involved is broad, such as multiplication formula to find business, the division of the table within the calculation, the composition of the number. Second, the operation steps and more, every time there are addition, multiplication and subtraction of three-step operation. Third, many difficulties, you need to have a strong understanding. Such as trial business, business positioning, “the remainder than the divisor” and “not enough business 1 with 0” and other issues, are rooted in the “addition” of the content. This