论文部分内容阅读
作为数学教师在平时的教学中我们常常会叹惜,学生的运算能力太差了,这么简单的不会算,连成绩较好的学生也常出差错,也会听到学生议论,这些我明明会做怎么就算错了呢?而在平时的测试中涉及运算内容的题目约占55%以上,而加强运算练习,提高运算能力就能提高学生20%的成绩,所以,如何有效提高运算的正确率是初中数学教学的一个迫在眉睫的问题。要解决这个问题首先我们要了解什么叫运算能力,所谓运算能力是指利用运算的规律对运算的对象进行变形、化简、整理的技
As a teacher of mathematics, we often lament in our usual teaching. The students ’arithmetic skills are so poor that they can not be counted as such. Even the students with better grades often make mistakes and students’ How to do it even wrong? And in peacetime tests involving computing content of the subject about 55% or more, and to strengthen the computing exercises to improve computing power will be able to improve students 20% of the results, so how to effectively improve the accuracy of the operation Is an urgent problem in junior high school mathematics teaching. To solve this problem, we must first understand what is computing power, the so-called computing power refers to the use of computing the laws of the computing object deformation, simplification, finishing skills