自进入初中以来,同学们在数学上遇到的第一个难题就是数轴了.王浩东同学也是如此,可他通过自己的努力解决了这个难题.刚开始时,我画数轴总是画不好,当时我不知道为什么.后来老师在讲课时,讲数轴必须有“三要素”——原点、正方向和单位长度,并且“三要素”缺一不可.听老师这样一说,我立刻对照了一下自己画的数轴.发 Since entering junior high school, the students encountered in math the first problem is the number of axes.Wang Haodong students as well, but through his own efforts to solve this problem.From the beginning, I always draw a few axes is not good, At that time, I did not know why. Later, when the teacher lectured, the ax must have “three elements” - origin, positive direction and unit length, and “three elements” are indispensable. Immediately control the number of their own painting axis