"Before I start, let me ask you a simple question, a one-pound iron ball and a ten-pound iron ball, falling from the same height, who will land first." Dai Huadong stood in a pavilion next to Poseidon Lake and asked.

Wang Dong showed a disdainful expression: "Nonsense, of course it's heavy that landed first." I thought you had some special questions, but it turned out to be such a simple question. ”

Dai Huadong didn't refute, he looked at the others: "What about you?" ”

"It should be heavy and land first." Xiao Xiao looked at Dai Huadong's smiling face, thought about it and said uncertainly.

"Probably...... It's heavy, right? Liu Shiyi tried to see something in Dai Huadong's eyes, but he didn't see anything.

Huo Yuhao knew that his second brother often put on a serious appearance when the other party said something wrong, and then slapped his face hard, so he said, "Maybe...... Is it light? ”

Dai Huadong smiled and said, "Please keep this question in mind and start the class next." ”

"Huh? You haven't said who's right. And Yuhao, how can it be light to land first? Wang Dong said loudly.

"Quiet, Wang Dong, I'm going to lecture now, please don't talk about some irrelevant issues." Dai Huadong glared at him, and then said, "You have all learned arithmetic, right?" ”

After getting everyone's definite answer, Dai Huadong said: "Very good, then, there is a group of chickens and a group of rabbits are locked in a cage, a total of 24 heads, 68 legs, a chicken has two legs, a rabbit has four legs, so how many chickens and rabbits are there?" ”

Wang Dong's expression was like this: ⊙_⊙

The expressions of the others are the same: ⊙_⊙

"It's a very simple question, it's time to put your computing skills to the test." Dai Huadong looked into the distance.

Listening to the discussion behind him getting louder and louder, Dai Huadong still didn't look back, he just sighed.

"What's wrong? Looking like you're going to die? Opposite Dai Huadong, the outlying island stood on the lake so easily, looking at Dai Huadong.

Huo Yuhao and the others didn't seem to notice the arrival of the outlying island, and Dai Huadong didn't remind them, he said to the outlying island: "Didn't you go to work?" ”

"Who told you I went to work? I just went to buy tea, and I just came over when I saw you. "The outlying islands slid from the lake to the shore and stepped on the ground.

Dai Huadong sighed: "Your deep sea is really a strange existence." Ship wives too. ”

"Come on." The outlying island looked at Huo Yuhao and they discussed the problem of "chickens and rabbits in the same cage", "Then again, you are teaching mathematics, right?" ”

"Let's lay some foundation for them first, but the foundation of mathematics is very important. The Pythagorean theorem and solid geometry that were taught later were also useful for them to make soul guides. Dai Huadong said.

The outlying island looked at them and suddenly said, "What the hell are you going to do?" One moment copying novels, the next moment teaching others math or something. ”

"My goal is the sea of stars!" Dai Huadong struck an extremely middle two pose.

"......" Hakushima looked at him with caring eyes.

"Huh? Squad leader, why are you here? Didn't you say to go to work? Wang Dong looked up and saw the outlying island.

"Is what I said before like a part-time job manifesto?"

"Uh...... By the way, squad leader, do you know this problem? Wang Dong forcibly changed the topic and told her Dai Huadong's question.

The outlying island looked disgusted: "Ten rabbits, fourteen chickens." It's useless to ask such a simple question. ”

"I ......" Wang Dong just wanted to be mad, and remembered that the outlying islands had always advocated the truth that if they could be solved by force, there would be less nonsense, so the fire was extinguished instantly......

"Squad leader, how did you solve it?" Huo Yuhao asked, although Brother Tianmeng had warned him to get as close as possible to the outlying islands, he was still curious about how to solve this problem.

Lidao glanced at him and said, "I'm just here for tea." You ask that guy. ”

Dai Huadong also stood up at the right time: "Then I'll explain it to you, chickens and rabbits are in the same cage, with a total of 68 legs, chickens have two legs, and rabbits have four legs, right?" Then cut off half of their legs, the chicken has only one leg, the rabbit has only two legs, there are 34 legs in total, and then the number of legs minus the number of heads, it is the number of rabbits, that is, 10, then the number of chickens is 14. ”

"This ......" Huo Yuhao suddenly realized, "I see that this is fine!" One head corresponds to one leg, and the rabbit will have one more, as long as the number of heads is subtracted, the number of extra legs is the number of rabbits! ”

Others also suddenly realized that they had not thought of this.

Wang Dong was unconvinced and said: "What's the use of learning this, and it can't make people's cultivation faster." ”

"Oh, actually, it's just that I want revenge, and the next thing to teach you is the knowledge that really matters." Dai Huadong said indifferently, he was tortured to death by these topics in his previous life, how could he do it without retaliating against the society.

“……”

"Okay, like the problem of chickens and rabbits in the same cage just now, there is another solution, this method is called the binary equation, this method ......" Dai Huadong began to explain the binary equation to the few little guys present. The outlying island sat on the side and drank tea silently, without saying a word.

……

"Ah, why do I understand every word he says, but I don't understand it at all when it comes to the combination." Wang Dong, a scumbag, lay on his bed with a gray face.

"It's okay, what the second brother said is very simple." Huo Yuhao said.

In Wang Dong's eyes, Huo Yuhao is completely the ugly face of a school bully. The world is full of contradictions, African chiefs and Europe are new; the sweet party and the salty party; Confederates & Tribes; Scumbags and scholars. Now Wang Dong has encountered the last one.

"You go! Just when I don't have you as a roommate! Wang Dong burst into tears.

“……”

Nothing was said all night.

The next day, the class bell rang, and the two head teachers, Zhou Yi and Wang Yan, walked into the classroom at the same time.

Zhou Yi's face was calm, but his cold eyes swept across the class. Dai Huadong knew that he was going to go crazy.

Wang Yan stood at the door, did not speak, yesterday he was scolded by Zhou Yi fiercely, he was a little angry in his heart, and said secretly: "I want to see how you care about these students who are all proud of the sky." ”

"All stand up." Zhou Yi said coldly.

The students of the original class stood up straight for the first time, while the other students stood up sparsely and slowly.

Looking at the scene in front of him, Zhou Yi said coldly: "Very good, there are sixty-seven people in the class, thirty-eight people got up as soon as they heard my instructions, and the other twenty-nine people were more or less delaying time. ”

"Huang Chutian!" The first one is Huang Chutian, who enjoys the treatment of a core disciple.

Huang Chutian was stunned for a moment, and said with a smile: "Teacher Zhou, don't you have to be so serious, isn't it just a little late to stand up?" ”

Zhou Yi didn't talk nonsense to him at all, appeared in front of him in an instant, grabbed his shirt and threw him out of the window. The scream made Dai Huadong feel happy...... No, grief-stricken. Don't you have any eyes? This is obviously to suppress the thorns, and then you stupidly jumped out......

Then the names were reported by Zhou Yi, and soon all the students were called out, with Huang Chutian's experience, no one among the students made another restart, and walked out of the classroom honestly.

"Since the class leader has been selected, then I can't change it, and then I want to announce one thing, in the future, those who dare to question the teacher's decision will be expelled directly." Zhou Yi said.

"Teacher Zhou, including the core disciples, right?" Dai Huadong smiled.

Zhou Yi glanced at Dai Huadong and said, "I don't have the right to expel core disciples and students who enjoy the treatment of core disciples, but I can apply to transfer them out of my class, and you are no exception." ”

"How so? What Mr. Zhou said is always right. Dai Huadong smiled hippie.

"Alright, sit down." Zhou Yi glared at Dai Huadong and came to Wang Yan, "Okay, Teacher Wang Yan, now you give a lesson to the students inside, and I will teach the students outside." Also, please report to the academy that Huang Chutian, a student in this class, seriously violated class discipline. In view of the fact that he is a student who enjoys the treatment of a core disciple, I have no right to expel him, and I will apply for him to be transferred out of this class, and I will not teach such a student. ”

Wang Yan hurriedly said: "Teacher Zhou, calm down, he is a student who enjoys the treatment of a core disciple." ”

Zhou Yi glanced at him coldly: "In my eyes, there are only obedient and disobedient disciples, only excellent and garbage disciples, there are no disciples who enjoy the treatment of core disciples, and there are no core disciples." I've made up my mind, he must get out. Let's get started. With that, she turned and walked out of the classroom.

When he started the class next, Wang Yan found that the atmosphere of the class had obviously changed, compared with yesterday's looseness, the seriousness of listening to the lectures today was like hearing that as long as a hundred consecutive buildings could produce Yamato, the African people who could produce Yamato. That's good class discipline.

This made Wang Yan suddenly feel: It seems good to be a little stricter?

In this way, Wang Yan opened the door to a new world......