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纵观历年来数学中考题,通过点和图形运动来选择在函数图象中的正确表达,已经作为一种常态化的试题出现,这也是为了落实新课标中关于加强“数感”训练的要求而应运而生的一类题目.2011年版《义务教育课程标准》对数感训练的要求是这样叙述的:“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.”教师应在日常
Throughout the years mathematics test questions, through the point and graphics to choose the correct expression in the function of the image, has emerged as a normalized test questions, which is to implement the new curriculum standard on strengthening Training requirements and came into being a class of problems.The 2011 edition of “compulsory education curriculum standards” sense of flu training requirements are described as follows: “Sense of number mainly refers to the number and quantity, the relationship between the number of estimates of the operation results The establishment of a sense of number helps students understand the meaning of numbers in real life and understand or express the quantitative relationship in specific situations. ”Teachers should be in daily