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《数学课程标准》关于学习内容中有六个重要概念,即数感、符号感、空间观念、统计观念、应用意识、推理能力,数感摆在了首要位置,数学课程改革为什么第一次明确地把培养学生数感作为数学学习的重要内容和重要目标之一?因为数在人们生活中有重要的作用,数可以用来表达和交流,可以帮助人们认识身边的事物,可以帮助人们解决生活中的问题。数在数学学习中贯穿始终,影响着学生的各科学习,也为数学的后继学习奠定了基础。因而,培养小学生数感是新课程改革背景下的一项重要的也是崭新的任务。怎样培养小学生的数感呢?其有效策略有:通过体验使学生理解数的意义,能表示生活中的数,建立数感;通过学生间的表达与交流进一步形成数感;通过比较及时大数的估算加深对数的理解,使数感得到发展;通过解决实际问题,使学生能够把现实问题与数量关系建立联系,提出并选择适当方法解决问题,强化数感。
There are six important concepts in the content of mathematics curriculum, namely, sense of number, sense of symbol, concept of space, concept of statistics, sense of application, reasoning ability and number sense, and why math curriculum reform is the first clear As one of the important contents and one of the important goals of mathematics learning, because it has an important function in people’s life, the number can be used to express and exchange, which can help people to know the things around them and help people to solve their problems. In the question. The number runs through the mathematics learning all the time, affects the students’ learning in all subjects, and lays the foundation for the subsequent learning of mathematics. Therefore, cultivating the number of pupils is an important and brand new task in the context of the new curriculum reform. How to cultivate the sense of number of primary school students? The effective strategies are: to enable students to understand the significance of the number, to show the number of life, to establish a sense of number; through the expression and exchange of students to further develop a sense of number; by comparing the number of timely Estimates increase the understanding of logarithms and make sense of numbers. By solving practical problems, students are able to establish linkages between real problems and quantitative relationships, propose and select appropriate methods to solve problems and enhance the sense of number.