Marginal effects are everywhere in our lives. Just like in education, as we all know, we should seize the opportunity when educating students. First of all, we must learn to "send charcoal in the snow." This requires the head teacher to go deep into the students, understand their needs and existing problems, lend a helping hand in time, and solve their difficulties, which can often get twice the result with half the effort. "icing on the cake" is easy and beautiful, but "giving charcoal in the snow" is more urgent and important. Secondly, learn to "cool down properly" and don't criticize and praise excessively. In class management, different problems among students should be evaluated differently. For example, when dealing with some students who have made mistakes, some class teachers often fly into a rage and immediately find the students to reprimand them, which sometimes backfires and makes them resistant. At this time, we might as well adopt the method of delayed evaluation and talk to students after catching a cold, sometimes the effect will be better. Even if it's better late than never, it's not too late. Emotionally, people often feel meaningless about what they have and can get at any time, and often show great interest in those things that are difficult to get easily. This was originally the source of curiosity that human beings relied on for development and survival in evolution-if human beings had no marginal effect of emotion, we might still live in caves today. However, when this effect enters today's society with excessive information and workload, the consequences of emotional marginal utility can be seen everywhere. Family, friends,