My mother read the topic once, thought for a while and asked me, "Can you draw a line graph according to the conditions given by the topic?" Being asked by my mother, I suddenly remembered what my teacher taught me before: under the given conditions, you can draw line segments if you have relations. The relationship between this topic is that Class A has two more people than Class B, and Class C has six fewer people than Class B. What has not changed in this sentence is Class B. Draw the line diagram of Class B first, and then draw the line diagrams of Class A and Class C according to this sentence.
According to this figure, I found: suppose there are two more people in Class A than Class B to Class C, so that Class A and Class B have the same number of people. At this time, the number of people in class C is 4 less than that in class B: 6-2=4 (people). At this time, as long as there are four more people in Class C, it will be as many as Class B, and the total number of people will be four more: 16 1+4= 165 (people). In this way, the average score can be: 165÷3=55 (person). At this time, the number of people in class B is calculated, which is 55. At the same time, the number of people in Class A and Class B can be calculated: Class A: 55+2=57 (people)? Class C: 55-6=49 (person). Finally, I checked again and added up the number of people in the three classes: 57+55+49= 16 1 (people) is exactly 16 1. Under the guidance of my mother, I finally solved this problem with what I learned. This incident made me understand: no matter in study or in life, when encountering a difficult problem, you must not panic, you must think calmly, think about what you usually learn in your mind like watching a movie, and then find the appropriate method to solve the problem according to the meaning of the problem. No matter how difficult the problem is, it will be solved.