论文部分内容阅读
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。数感是一种主动地、自觉地或自动化地理解数和运用数的态度与意识,是人的一种基
Sense of number mainly in: the significance of understanding the number; can use a variety of ways to represent the number; can grasp the relative size of the relationship between the number of situations; can use the number to express and exchange information; can solve the problem and choose the appropriate Algorithm; be able to estimate the result of the operation, and explain the rationality of the result. Sense of number is a kind of initiative, consciously or automatically understand the number and use of the number of attitudes and awareness, is a human base