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我国小学数学课程历来只重视精确计算,估算一直没有受到重视,1992年的小学数学教学大纲首次将估算列为课程的内容,不过仅作为选学内容,没有真正落实到具体目标上,直到2001年7月国家教育部颁布的《全日制义务教育数学课程标准(实验稿)》中提出了要加强估算,要求第一学段的学生能结合具体情境进行估算。但是,在实际教学中却存在着许多值得思考的问题。
The primary mathematics curriculum in our country has always attached importance to accurate calculation. The estimation has not been taken seriously. For the first time, the primary mathematics syllabus of 1992 listed the estimation as the content of the course, but it was only for the content of the election that it did not really reach the specific goal until 2001 In July, the full-time compulsory education mathematics curriculum standard (experimental draft) promulgated by the Ministry of Education of the People’s Republic of China put forward some suggestions to strengthen the estimation. The students in the first semester are required to estimate according to the specific situation. However, there are many problems to be considered in the practical teaching.