Liu Hua and Wu Guangnian have about the same teaching experience, Liu Hua's salary is exactly 1,000 yuan per month, Wu Guangnian, more than 1,300 yuan per month, not to mention the benefits of the New Year's holidays, Wu Guangnian is more generous than Liu Hua.

The salary difference is more than 300 yuan, you must know that Liu Hua has brought three classes of mathematics classes, and Wu Guangnian has only brought one class and one class.

Not to mention the heavy teaching task, the students in the ordinary class are not as easy to teach as the students in this key class, so not only Liu Hua wants to lead a class, but also the teachers of other classes want to lead a key class.

The salary is high, there are few things to worry about, who doesn't want to teach key classes is a fool, and the teacher is also a human being, and he has to eat, drink and lazar.

In the midterm exam, Liu Hua's three classes of mathematics scores were not very satisfactory, and the overall ranking of the whole grade was poor, Liu Hua had been invited to drink tea by the leaders of the Academic Affairs Office, and seeing that the final exam was approaching, the pressure on Liu Hua could be imagined.

From entering the classroom to standing on the podium to give a lecture, Liu Hua had a straight face and gloomy eyes throughout the whole process.

The students in the second class are not stupid, and the original thoughts that jumped out of the Christmas are gone, and they are staring at the blackboard intently.

In fact, most of the students don't know where to fly for a long time.

"Analytically formulating the function into the sum of the square and constants containing the independent variables, and then determining the range or maximum value of the function according to the range of values of the variables, I have explained a similar type of problem on the blackboard before, and the result! If I'm not mistaken, there were less than five people in the class in the last exam, is it so difficult? ”

The more Liu Hua spoke, the more angry he became, his eyes lit up and he scanned the entire classroom, trying to find someone to come out and vent the fire in his heart.

After looking around, his eyes finally stayed on Zhang Yufei.

Liu Hua knew that Zhang Yufei was Zhang Zhiming's granddaughter, Zhang Yufei's math scores in the class were very poor in the first year of high school, but he was seriously tutored by Wang Haoran in the summer vacation, and his math scores in the second semester of high school improved significantly, and he ranked in the top five in the class in the last midterm exam.

Originally, Liu Hua's impression of Zhang Yufei was not bad, but after meeting Zhang Zhiming once, Liu Hua looked at Zhang Yufei unpleasantly.

What Zhang Yufei not only improved his math score a lot, but also made significant progress in other classes, and the credit should be attributed to the tutor in the summer vacation.

What one's own teaching level is not suitable for teaching key classes, as a teacher, not only to teach knowledge, but also to teach life, otherwise students will not be convinced.

The teachings of the seniors and elders not only did not make Liu Hua not bring the balance of the heart of the key class, but hated Zhang Zhiming for meddling.

"Zhang Yufei, dictate how to solve this problem!"

Zhang Yufei was deserting because of Wang Haoran's Christmas gifts, so he didn't hear the teacher's name.

Li Jie risked being discovered and touched Zhang's girlfriend with her arm, and before Zhang Yufei, who had come back to his senses, could stand up, Liu Hua smashed the book in his hand at Zhang Yufei without saying a word.

Pages of the book fluttered in the wind, and with the sound of "whoosh" as the rapid flight came, the big word "mathematics" on the cover was about to smash on Zhang Yufei's dazed face.

As early as when Liu Hua clicked Zhang Yufei's name, Wang Haoran shifted his attention to Liu Hua, Zhang Yufei failed to react in time, and Wang Haoran frowned.

Seeing Liu Hua smashing Zhang Yufei with a book, Wang Haoran didn't think about it, got up suddenly, stepped across the aisle, and grabbed the book that was about to fall on Zhang Yufei's head.

In an instant, the air in the classroom froze, and the students, who were still in a state of shock, subconsciously admired Wang Haoran in their hearts.

Liu Hua was stunned for a moment, and then became angry as if he had been humiliated, "Do you want to rebel?" Wang Haoran, do you think that if you have good grades, you will be able to go to heaven? ”

After saying this, Liu Hua seemed to think that he was not strong enough, stepped off the podium, came to Wang Haoran, and looked directly at Wang Haoran.

Liu Hua, who has a fat head and big ears, is half a head shorter than Wang Haoran, and looks at the handsome Wang Haoran with a grim face.

The picture was a little joyful, and some uninteresting classmates chuckled, and Liu Hua's face became even more embarrassed.

"Do you think you're amazing? Heroes save beauty, right? ”

Wang Haoran glanced at the poor Zhang Yufei, and said calmly: "It's not enough to talk about heroes saving beauty, I just think that your actions are a bit excessive, teacher, your classmates are not focused for a while, you are often beaten and scolded, it is not the way to be a teacher!" ”

Wang Haoran's questioning made Liu Hua's face pale, and he gritted his teeth and said: "As a teacher, shouldn't Lao Tzu discipline students?" Such a simple question on the blackboard Lao Tzu did it with his eyes closed, and as a result, how many of you knew how many in the last exam? If you can't do it, you don't listen carefully, look at the top students in the next class, look at you, what's the difference between not listening to class and waste! ”

Liu Hua is not stupid, he doesn't beat and scold students once or twice, and it's not uncommon for parents to find the school because he is too heavy, but Liu Hua insists that he is a good heart every time, and beating and scolding students is also out of hatred of iron and steel, so that parents and schools have nothing to say.

Wang Haoran smiled: "You don't seem to know much about the class next door, I haven't seen anyone call myself a top student when I was in the next class, and it's not that you can't listen to your class, I really don't listen to your class, I really rarely listen to you in class, but I can easily solve this problem on the blackboard." ”

Wang Haoran's words made Liu Hua angry, "Okay, you can, you go up and show me!" Don't use the knowledge taught by Lao Tzu! Who knows if you learn from me! ”

On the blackboard is a problem about finding the range of functions, which I just learned this semester, and it is quite a difficult problem.

Wang Haoran picked up the chalk and glanced at the question, "I haven't listened to your class much, I don't know what method you teach your classmates to use to solve this problem, and I can only think of three or four ways to solve the problem for a while, I will write them all down and see if you have missed any better methods?" ”

Method 1: Fundamental inequality method, x=......

Method 2: Discriminant method, let y=...... Rule......

Method 3: Monotonicity Method: Determine the function x...... The monotonicity of any......

Method 4: Matching method: f=...... At this point......

Wang Haoran didn't seem to have to think, the dragon flew and the phoenix danced, and after a while, the four solution methods were clearly written on most of the blackboard step by step.

"Wow, that's awesome!"

"Yes, the answers to the four methods of solving the problem can come out!"

"Yes, the third method seems to be the one taught by the teacher in class, which is a little more complicated than the other three!"

"It's really worthy of being a top student in the first class, and I can only understand two methods!"

“……”

As Wang Haoran finished answering, the students who didn't dare to make a single voice couldn't help but admire in a low voice.

Liu Hua's expression was also blue and white for a while, and the original anger was not easy to attack because of shame.

As a math teacher, there are only three of them, so how can there be any better way to solve the problem.

couldn't have a seizure, and didn't have the face to pretend to be in class as if nothing happened, Liu Hua walked out of the classroom without saying a word.

As soon as the class began, the teacher was angry and left, Wang Haoran didn't care how the school would deal with it, but Wang Haoran didn't want to make things too big, which was not a good thing for Zhang Yufei.

We have to find a way to remedy it.

Wang Haoran did not walk back to his seat, and the classmates exchanged heads and ears below, looking at Wang Haoran with admiration.

With a feigned cough, Wang Haoran stood on the podium and said with a smile: "That classmate listened to me, the teacher was angry with me, and he will definitely tell the head teacher later, in order to be less scolded, I will tell you about my understanding of mathematics and the method of learning mathematics, please try to be quiet and listen carefully, when I ran away from the teacher to atone for your sins!" ”

"Good!"

"Okay, we wanted to ask you if you have any private study methods, your grades are too rebellious!"

With a short period of echoing, the students all quieted down, and waited for the lecture more attentively than usual in class.

In normal times, Wang Haoran doesn't have such a big face and ability, but just now he solved more than one problem and really suppressed this group of students, and many students also want to learn some secrets from Wang Haoran, a scholar, because the order of the classroom is better than that of the teacher.

Wang Haoran's good grades are not only because of the more experience and mood than his peers, but also because the learning methods he worked hard to study in order to tutor Zhang Yufei during the summer vacation are also very important.

The young Wang Haoran on the stage was explaining seriously, and what he said was orderly and vivid.

The students below are also listening attentively, bowing their heads from time to time to take notes.

No one noticed the shock on Liu Hua's face who came out of the window, as well as Hu Yiyuan and Ma Qun standing on the side.