在小学数学中,比的应用主要有两个内容,即比例尺和按比例分配。由于比例尺与比例的联系更多一些,且“新课标”把比例尺归入空间与图形领域的《图形与位置》这部分内容中,因此留在人教版新编的六年级下册数学中,这里只教学怎样解答按比例分配的实际问题。在教学新编人教版六年级数学上册《按比例分配问题》时,我们发现教学完例2后,学生们大多喜欢用“平均分”的方法来解决问题,即把1:4看作分得的份数,先求出总份数,算出 In primary school mathematics, there are two main applications of ratio, that is, scale and proportionate distribution. Because of the more scale-to-scale links and the New Curriculum Standard to include the scale in the “Graphics and Location” section of the space and graphics area, it remains in the sixth grade of the PEP In mathematics, here only teach how to answer the actual problem of proportionate distribution. When teaching the new PEP sixth-grade math book, “Pro-grading Problems,” we found that most of our students like to use the “average points” method to solve the problem after teaching Case 2, that is, to look at 1: 4 To share the number of copies, first find the total number of copies, calculated