教学内容北师大版义务教育课程标准实验教科书《数学》一年级上册第16～19页。学生状况分析高矮比较对一年级学生并不陌生。课前作了一个小调查,发现学生对高矮的认识有一定的基础,有96%以上的学生已经对高矮有了初步的感性认识,不过他们的认识往往是笼统、片面的;有80%以上的 Teaching content Beijing Normal University compulsory education curriculum standard experimental textbook “mathematics” the first grade on the first 16 ~ 19 pages. The height of the student status analysis is no stranger to first-year students. A small survey conducted before the class found that students have a certain degree of understanding of the height, more than 96% of the students have initially perceived the height, but their understanding is often general and unilateral; more than 80%