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自1954年Dintzig首次提出数感,数感渐渐被教育界所熟知,并成为国内外数学教学研究中的热点问题之一。2011版《数学课程标准》指出: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学。可见,数感是数学素养的的具体体现,培养和发展学生的数感是数学学习的基本教学目标。
Since 1954 Dintzig first put forward a sense of number, sense of number gradually became well-known by the educational circles and became one of the hot issues in mathematics teaching research at home and abroad. 2011 edition of “Mathematics Curriculum Standards” pointed out: Sense of number mainly refers to the number and the number of relations between the number of estimates of the operation results. Creating a sense of number helps students understand the meaning of numbers in real life and understand or express math in specific contexts. Can be seen that the number of flu is a concrete manifestation of mathematical literacy, training and development of students is the number of sense of learning the basic teaching objectives.