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《数学课程标准》强调:“数感主要表现在:理解数的意义;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。”可见,培养学生的数感是当前数学教学的一个重要任务。因此,在数学教学中,我们要联系生活,为学生创设情境,搭设平台,让学生能够更具体、更深刻地把握数的概念,培养数感,提高学生的思维能力。
“Mathematical Curriculum Standard” emphasizes: “Sense of number mainly in: to understand the meaning of number; to use a variety of ways to represent the number; in a specific context to grasp the relative size of the number of relations; can use the number to express and exchange information; Can choose the appropriate algorithm to solve the problem, can estimate the result of the operation, and explain the rationality of the result. ”" Thus, cultivating students’ sense of number is an important task in current mathematics teaching. Therefore, in mathematics teaching, we should contact life, create situations for students and set up a platform so that students can grasp the concept of numbers more specifically and profoundly, cultivate sense of number, and improve students’ thinking ability.