Rising: Ten Thousand Years Chapter 99: : Big waves wash the sand

Li Zhen finally became a teacher.

He enjoys this taste very much, and he is not good at being a teacher. Instead, enjoy the taste of spreading your knowledge.

Kyushu Academy of Sciences, majoring in mathematics, physics and chemistry.

Physics, the hardest.

One month later, the physics courses of the Kyushu Institute of Physics were divided into three branches - the School of Electromagnetics, the School of Mechanics, and the School of Power.

These three side branches are all very thin side branches, and the content has a lot in common. Many people take it as an elective, and some people specialize in it.

Li Zhen wanders in this palace of knowledge, and is extremely busy every day. Because the current teaching mode relies entirely on Li Zhen alone, which is a very unique teaching mode.

Li Zhen has to give a lecture to each college during the day, with different content every day, and the progress is very fast.

Apart from this, the Kyushu Academy of Sciences has no other teachers. Everyone has entered the stage of independent research, meeting and discussion.

The former Kyushu Institute of Physics started a new model, and now it has all developed into group discussion research.

In the School of Mathematics, Li Zhen stood on the lecture seat holding the textbook, looking at a group of overcrowded lecturers below. Among these people are not only people from the School of Mathematics, but also many people from the School of Physics who choose to take mathematics as an elective course. They are all very qualified. People from the School of Physics never take their seats, but give up their seats to people from the School of Mathematics.

They gradually realized the importance of mathematics to physics. There are so many things in common, and it is easy to have an intersection at a certain node.

"The Pythagorean Law. I talked about it a little bit yesterday, who knows the Pythagorean Law, please tell me."

Li Zhen poked the four words 'Pythagorean Law' on the blackboard with a set square, and looked down.

Everyone looked at each other, you look at me, I look at you.

At this moment, Hou Qiang stood up and said, "Master Li, let me answer this question."

"You say."

"Pythagorean's Law, probably the sum of the squares of the two right-angled sides A and B of a right-angled triangle is equal to the square of the hypotenuse C."

Li Zhen nodded: "Hou Qiang, sit down. Yes, what she said is not wrong. This is something in the Pythagorean law. But it is not all right. Does anyone know?"

Li Zhen looked down eagerly. He hoped that everyone could continue to diverge their thinking and continue to study independently. Because every time Li Chen lectures now, he will leave a suspense for the next class and throw out a few points, the purpose is to let everyone study it by themselves.

Many people's thinking is influenced by the Kyushu trend, and Li Zhen is doing his best to gradually change their thinking.

No one spoke anymore. Everyone is a little ashamed.

Mainly...it's too difficult.

"The Pythagorean law is a basic geometric law. Everyone knows the concept of geometry, right?"

Li Zhen asked.

"I know."

Scattered voices sounded from below, and most of the mathematics academy's faces were full of pride. A small number of people have shame on their faces, and a kind of hatred for themselves arises spontaneously. The people from the School of Physics scratched their heads anxiously. They were all monks halfway through, so they didn't know much about these things.

Li Zhen knows that many people don't know the concept of geometry, or can't understand the concept of geometry exactly, and he doesn't want to repeat what he has said.

Because the Kyushu Academy of Sciences is now in a mode where big waves wash away the sand, Li Zhen is screening out talented people.

"The Pythagorean theorem is one of the most important tools for solving geometric problems with algebraic thinking, and it is also one of the bonds of combining numbers and shapes. Everyone remembers a formula "Hook three shares, four mysterious five", if you don't understand, please Go back and study slowly."

Li Zhen's tone became a little harsh: "Just like what Hou Qiang said, calculate the right angle triangle, and get the square of the oblique angle C from the sum of the squares of the two sides AB."

Everyone lowered their heads and frantically recorded in their notebooks. Li Chen's lecture progress is very fast. If you miss a sentence, you will regret it all your life. Everyone knows the importance of taking notes.

Li Zhen patted the table, waited for everyone to finish writing notes, and said: "Why do I talk about the Pythagorean Law? Can any of you know why I talk about the Pythagorean Law? It's just a law, why do I want to focus on it?" ?Who knows?"

At this time, a man with gray hair and reading glasses stood up. Li Zhen forgot his name, but he was a mathematics teacher in a public high school in Qingdao County, and he had been here for several weeks.

The old man stood up, and said in a firm tone, "I probably understand some of Master Li's intentions."

"Speak, old man."

"As you said, the Pythagorean Law is one of the important tools for solving geometric problems with algebraic thinking. It can be seen from this sentence that Master Li focuses on the Pythagorean Law, not the purpose of Pythagorean Law."

Li Zhen raised his eyebrows: "What is that about?"

"Integrating some of the lessons you taught before, it can be seen that the thing you emphasized is called thinking, called concept. Just like what you said, mathematics is an abstract concept. There are various theorems of numbers. What you want to teach are just various theorems, and then let us actively think about why.”

Li Zhen slapped the table: "Yes. You are right. I will mention one more thing here today. Mathematics is divided into elementary mathematics and advanced mathematics. I will use the simplest sentence to summarize the difference between the two. One is to know what it is, and the other is to know why it is.”

"What you have learned, no matter how high-end you think it is, I am here to tell you today that it is all elementary mathematics. It is only used for calculation, black is black, white is white, and the most used is Addition, subtraction, multiplication and division. Advanced mathematics is concepts, authority, derivatives, and calculus. Advanced mathematics is concepts. To prove your conjecture, your hypothetical attitude.”

"In the process of your continuous proof, you will understand mathematics better. There is no complete understanding. Mathematics does not mean that you can calculate all addition, subtraction, multiplication and division, and you will never make mistakes. It means that you learn to understand It’s over. Everyone put away your thoughts, this subject is endless.”

Li Zhen's tone was extremely intense, and the people below were frightened after hearing it, and did not dare to make a sound at all.

After finishing speaking, Li Zhen looked at his watch: "Class is over. The main content of today's get out of class is the passage I mentioned above. Everyone go back and study it carefully. Starting tomorrow, I will formally explain the theorem to you. Let me say something else. "

Li Zhen's tone paused, and a complex look flashed in his eyes: "If other subjects can be relied on by rote memorization, mathematics, there is a talent. Learning advanced mathematics requires an extremely powerful talent. Only one The concept of function can make half of the people here. I don’t have time to let you all master ~IndoMTL.com~ So, Kyushu Mathematics Institute is about to start a big wave.”

Hiss——

All the people in the audience fell silent, biting their cheeks, staring blankly at Li Zhen on the podium.

"Starting a month later, Kyushu Mathematics Academy will start the elimination mode of the exam. The content behind it is extremely complicated, and some people will delay the progress so they have to brush it down. After that, there will be a monthly exam, and I will come up with the questions for the exam content Those who fail the exam will be eliminated. Those who have passed the exam will change classrooms, and I will focus on explaining. Kyushu Mathematics College will start to implement one-on-one, precise lectures in a month. As for those who are rejected, they can still attend lectures here , but I will only talk about it once every three days, and the rest, study it yourself."

After saying that, Li Zhen quickly left with his book in his arms.

Everyone in the entire school of mathematics was in an uproar. They all stood up and looked at each other in blank dismay. Some people with poor mental quality began to shake like sifting chaff.

Big waves wash the sand...

They are all afraid of being brushed down.

No one feels sure that they will pass the exam, no one has such confidence. Including Hou Qiang, who is excellent in mathematics, was dumbfounded on the spot and lost his mind.

The people from the physics school who came to the school of mathematics looked at each other, and said: "It seems that this is a very serious matter."

"This... the Faculty of Mathematics has started to wash away the sand, shouldn't our Faculty of Physics do the same?"

"Hey, if this is eliminated, it will be a lifelong regret. Finally entered the Kyushu Academy of Sciences..."

"But it's true, I can understand Master Li's impatience. In the entire Kyushu Academy of Sciences, he teaches all the courses alone. Where can he teach it? Instead of casting a wide net, it is better to select specialized people."

“…”