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计算是一切数学活动的基石,离开了计算,数学活动便成了空穴来风,无本之木。从低年级20以内整数加减法、乘法口诀、口诀试商,到中年级的两位数整数乘、除法,再到高年级小数、分数加、减、乘、除四则混合运算,纯粹的计算教学贯穿了整个小学数学教材。另外,空间与图形、统计与概率、综合与实践这三大领域,都与计算密不可分。这充分说明了计算在小学数学学习中的重要性。同时,计算在训练学生缜密的思维、严谨的态度、快速的反应等方面也有重要的作用。然而在实际教学中,很多教师忽视学生计算能力的培养或高估了学生的计算能力,对学生出现的计算错误草率的定性为学生的粗心,这错误的观点导致学生对计算不能引起足够的重视。作为一名数学教师,我们要纠正错误观念,对学生的计算问题要引起高度的重视。
Computation is the cornerstone of all mathematical activity, leaving the calculation, mathematical activity has become groundless, non-essential wood. From the lower grades within 20 integer addition and subtraction law, multiplication formulas, formulas test, to middle-grade double-digit integer multiplication, division, and then to the upper grades of decimal, plus, subtract, multiply and divide addition to four mixed computing, pure calculation Teaching throughout the entire primary school mathematics textbooks. In addition, space and graphics, statistics and probability, integration and practice of these three areas, are closely linked with the calculation. This fully demonstrates the importance of computing in elementary mathematics learning. At the same time, the calculation also plays an important role in training students’ meticulous thinking, rigorous attitude and quick response. However, in practical teaching, many teachers neglect the cultivation of students ’computing abilities or overestimate their computational abilities, and the students’ carelessness in calculating mistakes in calculating errors is considered as carelessness by students. This erroneous viewpoint leads students not to pay sufficient attention to the calculation . As a math teacher, we must correct mistaken ideas and attach great importance to the calculation of students.