计算贯穿于整个小学生数学学习中,而计算的能力也就直接源于学生运用计算的能力,也就是运算能力。因此,提高小学生的运算能力是学生日后学习数学的基础,更是提高数学成绩的关键。1小学生运算能力差的主要原因随着儿童学习的发展,教师开始摆脱旧式的填鸭式教学,逐渐通过自我发现、探究来引导教学。例如:学习“100以内”的加减法运算时,学生更多的是面对直接用符号来表征的运算,这是通过“20以内”加减法的规则迁移来获得的。学生的 Computation runs through the entire pupil mathematics learning, and the ability to calculate directly from the students to use computing power, that is, computing power. Therefore, to improve pupil computing power is the basis for students to learn mathematics in the future, but also to improve the mathematical performance of the key. A primary reason for poor pupil computing power With the development of children's learning, teachers began to get rid of the old spoon-fed teaching, and gradually through self-discovery and inquiry to guide the teaching. For example, when learning addition and subtraction operations within “100, ” students are more likely to be confronted with symbols directly symbolized by rules migration through “20 ” addition and subtraction. student's