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数感作为人的数学基本素养的重要组成部分,是人对数与运算的一般理解,它是一种主动地、自觉的理解数和运用数的态度和意识。数感就是实际问题与数联系起来,就是一种数感。一个人一旦有了数感,就会自然而然的把数与实际的情景联系起来。《数学课程标准》指出“在学生学会数学思考的过程中建立初步的数感”。同样,学生数感的培养和建立,也会促进学生理解现实生活中数的意义,理解或表达现实情境中数量关系,有助于学生养成定量地思考问题的习
As an important part of human’s basic literacy, number sense is a general understanding of human’s logarithm and operation. It is a kind of attitude and consciousness of actively and consciously understanding numbers and using numbers. Number sense is the actual problem associated with the number is a sense of the number. Once a person has a sense of number, it will naturally link the number with the actual situation. The Mathematics Curriculum Standard states that “establishing a preliminary sense of number in the process of students’ learning maths thinking”. Similarly, the cultivation and establishment of students ’sense of numbers can also promote students’ understanding of the meaning of numbers in real life, understand or express the quantitative relationships in the real situations, and help students to develop a quantitative study of problems