相遇问题例１教学谈贲友林相遇问题的教学，是在学生学习了路程、速度、时间三个数量关系的基础上进行的，其主要特点在于走的人数（运动物体的个数）由一个变成了两个，需要考虑到物体运动的时间、方向、结果等问题。六年制第八册第４０页的例１是相向运动求路程；例２是... Case Study 1 teaching Ben Ben Lin Lin meet the problem of teaching, is to learn the students in the distance, speed, time on the basis of the three quantities, the main feature is that the number of walking (the number of moving objects) from one to Two, need to consider the object movement time, direction, results and other issues. Example 6 on page 40 of the 8th year of the six-year system is to find the opposite movement; Example 2 is ...