当前小学数学计算教学普遍存在重结果轻过程、重笔算轻口算、重法则轻算理、重计算轻估算的现象,严重影响学生数学思维的发展。《数学课程标准(2011年版)》明确指出:“建立数感、符号意识和空间观念,初步形成几何直观和运算能力,发展形象思维与抽象思维。”计算教学是数学教学本身的需要,但它必须以学生现有的认知与情感为基础,以学生数学素质 At present, mathematics teaching in primary schools generally has the following problems: the light process of results, the heavy counting, the light counting, the neglect of recalculation, which seriously affect the development of students’ mathematical thinking. “Mathematical Curriculum Standards (2011 Edition)” clearly states: “The establishment of a sense of number, symbolic awareness and spatial concepts, the initial formation of geometric intuition and computing power, the development of image thinking and abstract thinking.” Computational teaching is the need of mathematics teaching itself, But it must be based on the students ’existing cognitions and emotions, with students’ mathematical qualities