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新课标第一次明确地把“数感”作为数学学习的内容提出来,并且把“数感”摆在六个核心概念中的首要位置,充分表明让学生在数学学习过程中建立数感,是新课标十分强调和重视的问题。通俗地说,数感是人对于数及其运算的一般理解和感受,这种理解和感受可以帮助人们用灵活的方法为解决复杂的问题,提出有效的策略。那么怎么样去培养“数感”呢?笔者认为:建立和培养学生的数感就是让学生更多地接触和理解现实问题,更多地与生活实践相结合,有意识地将现实问题与数量建立起联系。一、创设情境,在真实情境中体验数感
For the first time, the new curriculum standard explicitly put “number sense” as the content of mathematics learning and puts the “number sense” at the top of the six core concepts, which fully shows that letting students learn in mathematics learning process In the establishment of a sense of number, is the new curriculum is very stressed and the importance of the problem. To put it in a nutshell, Sense of Number is the general understanding and feeling of people about numbers and their operations. This understanding and feeling can help people to propose effective strategies to solve complex problems with flexible methods. So how to cultivate “number sense”? I believe: to establish and develop a sense of the number of students is to allow students to more contact with and understanding of real problems, more integrated with the practice of life, consciously the real problems and Number of establish contact. First, create a situation, in the real situation to experience the number of flu