On the first day, we learned to use equations to solve application problems. Hong once said that Xiao Ci’s math was not good, but I knew that one of the most basic knowledge in junior high school was solving equations, so I started from solving equations in the most basic way, and then, start with the simplest application questions to learn how to set equations. Xiao Ci has problems when solving the equation which is a little more complicated. I explained it patiently. Xiao Ci’s acceptance ability is still good. When you ask him any questions you have explained, he can basically describe it. After the first lesson, I gave Xiao Ci several calculation questions for setting equations. I came to class the next day. I asked Xiao Ci whether he had finished his homework? Is there no. Xiao Ci said it was done and showed it to me. After taking Xiao Ci’s homework, I looked carefully and basically did the right thing. I praised him. Then, we began to learn new questions. Xiao Ci and Yu Yao studied the journey together. Gradually during the learning process, I found that Xiao Ci’s basic calculation was very poor, which really shocked me. After graduating from primary school, the basic algorithms such as removing parentheses, General score and approximate score are all in a mess. I can’t imagine what kind of ending Xiao Ci will be like in junior high school. I also don’t understand how Xiao Ci learned mathematics in primary school. Therefore, the homework I assigned to Xiao Ci was very special, all of which were the most basic mathematical operations, including simple fractional addition, subtraction, multiplication and division, and simple equations. But I was also worried that Hong would not understand why she gave her son such a simple calculation question. Therefore, I called Hong to explain to her why I gave Xiao Ci such a simple question. Hong said: I know his foundation is not good. You know not? He has not done his homework since the fourth grade in the whole primary school. Every time when I was doing my homework, my mother stood aside. He would not be stunned when he did it. My mother scolded him at a glance and told him the answer directly, he never used his brain to think about problems, which was told by my mother. Just like a robot. As soon as I heard it, I told Hong: If you tell your parents, just tell them what I said. They are not allowed to tell Xiao Ci the answer in the future. If Xiao Ci has any questions that he doesn’t understand, let him call me. Oh, you don’t know. I was pissed off yesterday. At night, I came back and asked my son if he had finished his homework. He said he had finished it. I saw that it was not bad, and they had all been done, at the beginning, I was quite happy. I thought my son was good. Unexpectedly, my father taught him to do all these questions. Do you think they are confused. OK, you also tell Xiao Ci that if you can’t do the questions in the future, you can put them there and don’t ask Grandma and Grandpa. On the third day, Xiao Ci came to class and asked him as usual: Have you finished your homework? Is there no. Xiao Ci said: There are several questions I can’t do. Oh? How many ways can’t be done? I came to see. At first glance, Xiao Ci still had problems in removing parentheses and solving fractional equation, etc. Especially when there are square brackets and small brackets, he will be confused, and mistakes will obviously appear. For example: =? When calculating, Xiao Ci will definitely make an error when the minus sign removes the parentheses. Written as:, he didn’t know that the minus sign should be multiplied by the minus sign before 5. First, I on small Kind said: this time wrong, I only beat you 1, next time you be more wrong, I hit two, again next time wrong, I just played 4 times, double it so much, remember? Remember. However, I didn’t expect that every time Xiao Ci encountered such a problem, he would always capsize in this place, and his palm hit 40 times unexpectedly. However, Xiao Ci still didn’t solve this problem. Xiao Ci, you have to understand that 9-5 is actually +9-5, that is to say, there is a specific symbol in front of each number, just like each of us has a name, saying Xiao Ci, refers to you. This symbol in Mathematics belongs to every number. When calculating, it also needs to participate in the operation, which is called coincidence operation. That is to say, our calculation is actually divided into two processes, one is symbolic operation and the other is digital operation. The algorithm of symbols is: whether the positive sign meets the positive sign or the positive sign; When the positive sign meets the negative sign, it becomes the negative sign; When the negative sign meets the negative sign, it becomes the positive sign. Remember with a formula, that is: Positive is positive, negative is positive, positive and negative is negative. The simplest understanding is: the same sign is positive, and the different sign is negative. Understand? Understand understand. Well, accept the punishment. I want your nerves to generate conditioned reflex when you meet this place in the future, reminding you to pay attention to this place. You can see which hand to hit. Xiao Ci hesitated for a moment, and stretched out his left hand to me. I hit him on the palm with a pointer rather than a heavy hand. I asked him: does it hurt? It’s okay. I’m numb. Our teacher used to punish us like this. We are all used to it. Why did your teacher punish you? She had to send a nerve every day before giving a lecture, scolding a lot. She started to give a lecture when the scolding was comfortable. We are all used to it. No way. Your teacher is not insane. It must be because some of your classmates made trouble in class. 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