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什么是数感?顾名思义就是对数与数之间关系的一种感悟,即对数的一种深入理解,然后内化成一种对数的驾驭能力。《数学课程标准》明确指出:这种能力的培养在于理解数的意义;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。由此可见,数感是一个人基本的数学素养,在这种新理念的氛围下,培养学生的数感就成为
What is a sense of number? As the name suggests is the relationship between the number of logarithms and a perception, that a logarithmic in-depth understanding, and then internalized into a logarithmic ability to control. The standard of mathematics curriculum clearly states: This ability is cultivated by the understanding of the meaning of numbers; the ability to represent numbers in many ways; the relative size of numbers in specific contexts; the ability to express and communicate information in terms of numbers; The algorithm can be chosen to solve the problem; the result of the operation can be estimated and the rationality of the result can be explained. Thus, the number of flu is a sense of basic human qualities, in the atmosphere of this new concept, to cultivate a sense of the number of students become