《数学课程标准(实验稿)》中指出:数感主要表现在:“理解数的意义;能用多种方法来表示数;能在具体的情境中把握数的相对大小关系;能用数来表达和交流信息;能为解决问题而选择适当的算法;能估计运算的结果,并对结果的合理性作出解释。那怎样培养低年级学生的数感呢?结合自己的教学实践,笔者觉得可以从以下几个方面培养: ”Mathematical Curriculum Standard (experimental draft)“ pointed out: the number of senses mainly in: ”understand the meaning of number; can use a variety of ways to represent the number; in a specific context to grasp the relative size of the number of relations; can use the number To express and exchange information; can solve the problem and choose the appropriate algorithm; can evaluate the results of the operation, and to explain the rationality of the result .How to cultivate the sense of the number of junior students? Combined with my teaching practice, I think You can develop from the following aspects: