数感是人的一种基本数学素养,是对数与数之间的一种感悟,即对数的一种深入理解,然后内化成一种对数的驾驭能力。也可以说是一个人对数与运算的理解。这种理解可以帮助人们用灵活的方法做出数学判断,并为解决复杂问题提出有用的策略。数感的培养是一个渐进的过程,教师应在不断的数学活动中,让学生在对数的充分感知、感应和感受中,发展学生的数感。由于数学学习内容的安排,大体上是按照由易到难、由简单到复杂的顺序, Sense of the number of people is a basic mathematical literacy, is a kind of perception between the logarithm and number, that a logarithmic in-depth understanding, and then internalized into a logarithmic ability to control. It can also be said that a person’s understanding of logarithm and operation. This understanding can help people make mathematical judgments in a flexible way and put forward useful strategies for solving complex problems. Number sense of the training is a gradual process, teachers should be in constant math activities, so that students in the logarithm of the full perception, feelings and feelings, the development of the sense of the number of students. Due to the arrangement of mathematics learning content, in general, from easy to difficult, from simple to complex order,