用方程解正反比例应用题,在解答方法上有时虽不及用算术方法解简便.但由于正反比例数量关系具有一定的特征,用方程解有助于学生进一步理解两种相关联的量的相依关系;有利于今后学习函数、解答理化有关问题。为此,我们在教学中,就如下几方面作了些探讨。 Using equations to solve the problem of inverse proportion and inverse proportion, sometimes it is not easy to solve the solution method by means of arithmetic, but due to the certain characteristic of the quantity relation, the equation solution helps students to understand the relationship between the two related quantities ; Help to learn the function in the future, answer physics and chemistry relevant question. For this reason, we have made some discussions in the following aspects in our teaching.