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今天由于学校网络不通,没法使用已经做好的课件,我就临时决定给孩子们讲讲统一长度单位的意义。这对于学生来说,还是第一次,以前没有面临过这样的问题,而以后要面临很多这样的问题,要统一重量单位、面积单位、体积单位等,让学生明白统一长度单位产生的过程,有利于学生以后的学习。在这之前,其实前天刚接触长度单位的时候,就讲了统一长度单位的意义,我的思考是,学生需要多一些接触古人经历过的长度单位,才会明白
Today, as the school network is illogical and I can not use the already-done courseware, I temporarily decided to give the children the meaning of uniting length units. This is the first time for students that they have not faced any such problems before and will face many such problems in future. They should unify the weight units, area units and volume units so that students can understand the process of unification of length units, It is good for students to learn later. Prior to this, in fact, when I first came into contact with a unit of length, I talked about the meaning of a unit of uniform length. My thinking is that students need to know more about the length of units that the ancients experienced