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数学课程标准指出:数感是人的一种基本素养,是人主动自觉地理解和应用数的态度和意识。具有良好数感的人,对数的意义和运算有灵敏而强烈的感悟能力。数感体现在许多方面,如理解数的意义,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
Mathematical curriculum standards that: number sense is a basic human qualities, people take the initiative to consciously understand and apply the number of attitudes and awareness. Have a good sense of the number of people, the meaning of the logarithm and computing sensitive and strong perception. Number sense in many ways, such as understanding the meaning of the number can be used to represent the number of ways to grasp the relative size of the relationship between the number of specific situations can be used to express and exchange information, can choose to solve the problem and appropriate of