Chapter 47 The Birth of Genius
Sand sand, the chalk is walking fast on the blackboard. At first, Yao Wei was extremely surprised. Li Weidong didn't tutor mathematics. It's good to recognize all the symbols. Why did you change sex all of a sudden today? Can you really solve such a difficult trigonometric function problem?
But with the list of formulas, Yao Wei was dizzy at that time. What Li Weidong wrote turned out to be a lot of junior high school math formulas! Use junior high school knowledge to solve this trigonometric function problem of high school difficulty. Brother, are you crazy? Yao Wei was so angry that she wanted to grab the books on the desk and throw them away.
Alas...
The students below sighed for a while. Liu Heigou almost laughed out loud and thought that you were really good at it. It turned out that it was still rubbish! Yin and Yang said strangely, "Yo, your solution to this problem is really special. I haven't seen the book I've taught for so many years. What are you writing, Tianshu? Haha, Li Weidong, you are so talented! The students are optimistic that the new solution of trigonometric functions will be born in the hands of Li Weidong in our class!"
Liu Heigou tried his best to sarcastic, but Li Weidong turned a deaf ear to these words. The chalk in his hand seemed to be given spirituality. He waved it to his heart's content. A string of numbers and symbols appeared on the blackboard, and there were some inexplicable lines and graphics. Liu Heigou was still sneering at first, but when he looked at it, he felt that something was wrong, because he found that although Li Weidong only used the junior high school formula, he was familiar with each formula, and the verification was extremely smooth, not like a math idiot at all!
What's going on? What is this guy going to do? He doesn't really want to use junior high school knowledge to solve trigonometric functions, does he?
Liu Heigou was a little confused for a moment. As a teacher, he can't even be the worst student in the class. That's really going to ruin his reputation today! Thinking of this, I quickly read Li Weidong's solution step by step. What puzzled him more and more was that Li Weidong's verification steps were basically not solving the problem, but as if they were verifying something!
What does he want to prove? Liu Heigou took a look at Li Weidong and found that his expression was extremely strange. For a while, he frowned, and for a while, he was inexplicably happy. The chalk in his hand was written faster and faster. After a while, he wrote a full blackboard. After erasing it off, he continued to write. It's like the protagonist in a martial arts novel suddenly gets a martial arts secret book. He is intoxicated and can't extricate himself from it.
Liu Mo is quite disgusting, but after all, he is a math teacher. At a glance, there is a way in it. Regardless of the sarcasm like just now, he was absorbed in his steps to solve the problem. Until Li Weidong drew a triangle, added a vertical line, and then calculated the ratio of the opposite edge to the inclined edge, Liu Mo suddenly lowered his voice. At this time, he completely understood that Li Weidong, a mathematical idiot, had been calculating on the blackboard for such a long time, and he was actually deduging the sine theorem!
As everyone is told, the theorem seems to be simple, but the first person to deduce the theorem is either a genius or a madman! Liu Mo can completely conclude that Li Weidong doesn't know the sine cosine theorem or anything at all. This guy is completely trying to prove and deduce it with his own guess!
This kind of thing is easy to say, but extremely difficult to do. For example, everyone knows that the earth is round and crabs can be eaten, but the first person who thinks of it needs unimaginable courage and wisdom!
Freak! TMD, this is a complete madman! Liu Mo looked at Li Weidong waving chalk, and he was slightly distracted in an instant.
The students below didn't understand what was going on. They just felt that Li Weidong took the wrong medicine today. He didn't recite it well, but wanted to touch Liu Heigou's mold and ask for trouble. After all, mathematics is not English. If you can memorize two words, you can make it come true. Mathematics not only needs to master a large number of theorems and formulas, but also needs to do a large number of exercises to be integrated. Look at the things Li Weidong wrote on the blackboard. The donkey's lips are not right. Isn't it the way to solve the problem at all?
Only Yao Wei was secretly puzzled. She is the top math in the class. She once won the Mathematical Olympiad and is very talented in mathematics. She found that these things written by Li Weidong, the more complicated the formulas are, the more complicated they are, but they have not made any mistakes at all. This is not what a mathematical blind can do at all!
Looking at Liu Mo's expression, Yao Wei believed her judgment more and more. Li Weidong must have made some crazy move again! She was afraid that Liu Mo would continue to pester him. After all, the privileged person who gave Li Weidong free time was Principal Zhang. If such a thing happened, he had to find Principal Zhang to solve it. So he didn't ask for leave and sneaked out through the back door.
Liu Mo didn't notice Yao Wei at all. At this time, his attention was all on Li Weidong. I want this guy to calculate it again. I can really deduce the sine theorem and the cosine theorem. In case I untie this trigonometric function again, I will have no face at all! He pretended to cough twice and said, "Li Weidong, don't be embarrassed here at this level. The whole class is watching. Don't be ashamed of yourself, and don't waste everyone's time, okay?
Li Weidong is working hard to write, which is very cool. I only feel that formulas and inspirations naturally appear in my mind one by one, and I have to write them out in one breath to feel happy! He didn't hear what Liu Heigou said at all.
When Liu Mo saw that he ignored him, he was even more angry. He couldn't help pushing him and said, "Did you hear that! What's wrong with a mess? Hurry up and stay where it's cool. Don't affect my class!"
After giving him such a push, Li Weidong's high-speed calculation brain suddenly buzzed, in a mess, leaning against the blackboard and forgetting what he wanted to do. Guo Dapeng ran to the front with a few steps, held Li Weidong, stared at Liu Mo and roared, "Why do you hit people?"
"Why do you beat people?"
The classmates stood up. As soon as Liu Mo saw this situation, he was confused and stammered, "No, I don't have it. I, I just pushed him..."
The sound of loud noise made Li Weidong wake up. Looking at Guo Dapeng dragging himself, he said strangely, "What are you doing, Dapeng?"
"Are you all right, boss?" Guo Dapeng pointed to Liu Mo, "This guy just pushed you!"
At this time, Li Weidong only thought about the questions on the blackboard and was too lazy to care about Liu Mo. However, when I picked up the chalk again, I found that my mind was empty, and the thoughts just now were gone. He hesitated and said, "Dapeng, have I done this question?"
Guo Dapeng shook his head helplessly. Liu Mo quickly said, "Li Weidong, aren't you kidding me that I'm not good at it? Why can't such a simple trigonometric function be solved, haha! We have something to say first. If we can't figure it out, we are not allowed to take my class! Get out of here!"
Guo Dapeng was so angry that he wanted to do it at that time. Li Weidong reached out to stop him, looked at Liu Mo, and said, "I'm willing to bet and lose, Mr. Liu, I won't take your class in the future." He returned to his seat and calmly packed his schoolbag and was ready to go out.
"Wait a minute!"
A majestic voice sounded, and Principal Zhang came in with a calm face. Liu Mo's usual behavior has been in his ears for a long time. He just thought that this was a graduation class and the college entrance examination was coming soon, so he didn't pursue it too much. Li Weidong was free to arrange his time, which he personally approved, but Liu Mo jumped out and said something. Of course, Principal Zhang was extremely unhappy.
"Mr. Liu, what the hell is going on?"
As soon as Liu Mo looked at Principal Zhang's face, he knew that today was not a good thing. He said to himself, who hit me? But I can't think of Yao Wei, his proudest disciple. He quickly lost a smile and explained, "Li Weidong can't keep up with the progress of math now. I think it will be more difficult for him to follow the class. I just want to arrange for him to study by himself, and then I will take time to tutor him alone..."
"Cut~~~"
The students booed. Principal Zhang didn't say a word and looked at the blackboard first. Li Weidong's complicated problem-solving steps are still there. Although there is no end to it, Principal Zhang was originally a top student in the Department of Mathematics of Fudan University. He saw the trick at a glance, and his face became more and more ugly. Liu Heigou sweated and came down. He picked up the blackboard and said, "Principal Zhang, I'd better go to class first." With that, he wanted to erase the formula written by Li Weidong, but was scratched off the blackboard by Principal Zhang.
Li Weidong was very puzzled. Looking at what was written on the blackboard, he didn't know why. I didn't know why Principal Zhang's face was so solemn. He thought that he would not inadvantly write any vulgar content. Did the principal come to the river crab in person?
"Li Weidong, please come here." Principal Zhang politely called Li Weidong to the front of the blackboard, pointed to a long formula written by him, and said, "There are several subterms in it. Direct subrogate will make the operation process very complicated. Why don't you use the sine function formula?"
Li Weidong sweated for a moment and said weakly, "I'm sorry, Principal Zhang. I didn't learn much math. I don't know what the sine function formula is."
"So sin and cos, do you know what they are?"
"I seem to have heard of this, and I don't know what it is." Li Weidong was very ashamed of his answer and quickly explained, "I've been reciting English these days. Well, I haven't tutored math yet..."
Principal Zhang took a deep breath, looked at Liu Mo and said, "Mr. Liu, come out."
Liu Mo's face suddenly cried and followed Principal Zhang out of the classroom. The students, including Li Weidong himself, didn't know what had happened. They had a good thing to run to the door to find out.
I only heard the angry voice of the principal in the corridor:
"Mr. Liu, you are also engaged in mathematics. I believe that as a teacher, your level is not so superficial. Do you understand the formulas and steps written by Li Weidong?
"I understand... I understand."
"What do you understand?"
"Li Weidong... He is derivation theorem! He is very talented in mathematics..."
"Oh, you also know that it takes talent to do mathematics. Then can you tell me how many of the students you have taught can have such talent? However, such a talented student has been buried in your class for three years. Can you explain why?
"I..."
"Liu Mo, what is the biggest shame of a teacher? It's a mistake! As a headmaster, I don't want to evaluate your character, but does what you do make your students feel cold?
"Principal, I..."
"No need to explain! I will arrange someone to replace the class of Class One in the third year of high school. Liu Mo, from now on, you will suspend your job and reflect!"
PS: Recommend the good book "Back to the Qin Dynasty to be a sword fairy", the scoundrel police mixed in the end of the Warring States Period ^_^
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