小学数学第十册正、反比例的内容与传统教材相比,有较大改革。新教材把比的概念扩展了。这一部分内容揭示了互相关联的两种量之间的变化规律,渗透了函数思想,既是小学数学中除法、分数和简易方程的发展,又是学习中学数、理、化的基础。怎样才能搞好正、反比例的教学呢? Elementary mathematics tenth volumes of positive, inverse proportion of the contents of the traditional teaching materials, there is greater reform. The new textbook extends the concept of ratio. This part of the content reveals the changing law of the two kinds of interrelated variables and infiltrates the idea of ​​function. It is not only the development of division, fraction and simple equation in elementary mathematics, but also the basis for learning the secondary school mathematics. How can we do a good job, reverse proportion of teaching it?