数学离开了计算,数学内容就难以组织,数学教学就难以展开。计算是重要的数学应用技能,解决数学及生活中的实际问题常常需要计算。大纲指出:“培养学生的计算能力,首先要重视基本的口算训练,口算既是笔算的基础,也是计算能力的重要组成部分。”在低年级数学教学中,口算训练一直是一项重要的内容。很多教师都明白这个道理,在日常教学中也非常注重口算训练,天天读口算,写口算,口算薄、口算卡常备。不能说这样做没有效果,然而时间长了,学生难免产生倦怠心理,积极性不高。那么如何提高口 Mathematics left the calculation, the mathematical content is difficult to organize, mathematics teaching is difficult to start. Computation is an important mathematical application skill, and solving practical problems in mathematics and life often requires calculation. The outline states: “In cultivating students’ computing abilities, we must first of all pay attention to the basic arithmetic training, which is not only the basis of calculation but also an important part of the calculation ability.” In the lower mathematics teaching, arithmetic training has always been an important content. Many teachers understand this truth. In daily teaching, they also attach great importance to training in port arithmetic. Every day, they read, count, write, count. Can not say that there is no effect, but a long time, students inevitably burnout, enthusiasm is not high. So how to improve the mouth