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数感主要是指关于数与数量、数量关系、运算结果估计等方面的感悟。建立数感有助于学生理解现实生活中数的意义,理解或表述具体情境中的数量关系。数感之于数学,相当于乐感之于音乐,语感之于语言,是一种对数字(量)的直觉感受,一种对数字的敏感和快速的反应。它对认识数学世界,快速、准确完成数学计算和提高各方面数学能力有很大的帮助。教师要在教学过程中让学生潜移默化、丰富多彩地去感受和体验数感。
Sense of number refers to the number of mainly refers to the number, the relationship between the number of estimates of the operation results and other insights. Creating a sense of numbers helps students understand the meaning of numbers in real life and understand or express quantitative relationships in specific contexts. Feeling in mathematics, the sense of music is equivalent to music, sense of language in the language, is a kind of intuitive perception of numbers (quantity), a sensitive and rapid response to numbers. It is of great help in understanding the world of mathematics, completing mathematical calculations quickly and accurately, and improving mathematical abilities in all fields. Teachers in the teaching process to allow students to subtle, rich and colorful to experience and feel the number of flu.