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列方程解行程问题既是初中的重点,又是难点,所以学好列方程解行程问题除了掌握好路程s,速度v和时间t三者之间的基本关系(s=vt,v=s/t,t=s/v)外,最重要的是要学会找出题目中的相等关系,然后根据题意选出一个相等关系作题设,另一个相等关系作方程,用这种思路和方法解行程问题,对学生来说是比较容易的·下面举例谈谈·
The solution of the solution of the equation to the itinerary problem is not only the key point but also the difficulty of the junior middle school. Therefore, in addition to grasping the basic relationship between the distance s, the speed v and the time t, it is necessary to learn the solution of the equation solution to the itinerary problem (s=vt, v=s/t, t = s/v) The most important thing is to learn to find out the equal relations in the questions, then choose an equal relation according to the questions, and another equal relation as the equation. Use this way of thinking and method to solve the journey Problems are easier for students. Here are some examples to talk about.