I went home, put away my clothes, and followed Han Qian to school, just in time to catch the first class in the afternoon.

The first and second periods in the afternoon are math classes, and the third period is physical education. During the following self-study time, Wang Yufei will go to another building to attend Han Wenle’s Mathematical Olympiad training class.

The course schedule is naturally stress-free.

After all, mathematics is his strong point, so there is no need to listen to lectures during class. Wang Yufei puts all his energy on the unfinished books.

The English book was put aside for the time being, because Wang Yufei found that this kind of subject that only requires rote memorization, listening, and repetitive memory practice is actually not very challenging for him.

What he lacks now is vocabulary and listening practice. The former is not a problem for him, but as for the latter... Aunt Han is an English teacher in high school, so there must be no shortage of various teaching materials at home, not to mention various audio materials.

few.

What interests Wang Yufei even more is science subjects such as physics, chemistry, and biology.

Especially in physics, when everything common in life is given theorems in academic language, Wang Yufei only feels full of beauty. Even more interesting than mathematics.

When he saw all kinds of circuit knowledge, Wang Yufei discovered that he had mastered another ability. When he looked at all the electrical appliances in the classroom again, he seemed to be able to directly construct various three-dimensional circuit diagrams of the entire school in his brain.

Of course, it is not just a flat or three-dimensional figure, but also densely packed various data.

The high-voltage wires enter the transformer and reduce to about 220v and then enter the power distribution room. After passing through wires of various specifications, they are transported to each classroom in each building. According to the structure of the building, where is the most scientific way to set up the cable wells, and how to connect the lines is the safest and most economical way.

How much loss will be caused by using different methods...

It is hard to imagine how the brain can associate so many things after just looking at the most basic circuit content. Even when the entire three-dimensional diagram appeared in front of his eyes, Wang Yufei felt surprised.

It wasn't until his foot was kicked hard that Wang Yufei got out of this mysterious and mysterious feeling.

The one who can kick Wang Yufei during class is naturally Guo Xiaoyi.

When Wang Yufei woke up, he saw Guo Xiaoyi standing up and looking intently at the blackboard.

Okay, I was called to answer a question.

Wang Yufei raised his head and looked at the podium. The young mathematics teacher was looking at Guo Xiaoyi with a gloomy expression. A simple calculation problem was written at the bottom of the blackboard.

"It is known that 1/a+1/b=9/2(a+b), then a/b+b/a=?"

Wang Yufei sighed in his heart. It seemed that similar questions were just explained to Guo Xiaoyi last night, but obviously his sister did not understand what he said yesterday.

But in this situation, what can he do? He can only quickly write the answer on the manuscript paper on the table: "5/2"

"The answer is two out of five."

The next moment, Guo Xiaoyi answered loudly.

Unfortunately, standing on the podium, the math teacher had already clearly seen the little moves between the two.

"What's your name, that male classmate next to Guo Xiaoyi?" Li Ke asked unceremoniously.

Wang Yufei felt nervous and stood up quickly: "Teacher, my name is Wang Yufei, and I am the new student who just transferred here today."

"Wang Yufei, do you think you are very powerful?" Li Ke asked.

As a mathematics teacher with only two years of working experience, Li Ke can't get rid of the dust in his eyes.

Wang Yufei turned his head and glanced at Guo Xiaoyi. The girl curled her lips and her eye circles seemed a little red.

If it had been another morning, Wang Yufei would have admitted his mistake directly or said nothing after he had made a mistake and been exposed. But today, Guo Xiaoyi and Han Qian's words seemed to have opened a window for him, making him think differently.

So he naturally stated a fact: "Yes, teacher, I think I am indeed very powerful."

There was no pride at all, and his tone was even very sincere.

Or perhaps it was because the tone was so plain and sincere that it seemed to have unintentionally made many students laugh, and a burst of joyful laughter suddenly burst out in the classroom.

"Quiet! Who is making noise during class time?" Li Ke became a little angry and glanced at the whole class angrily.

The class fell silent, and Li Ke's eyes turned gloomier when he looked at Wang Yufei.

"How good do you think you are at math? Otherwise, today's class will be taught by you?" Li Ke asked directly.

"If the teacher needs it, I should be able to." Wang Yufei replied calmly.

There is no difficulty at all.

Wang Yufei had gone through the entire book that needed to be explained last night. He really didn't find it difficult to teach others. He just broke down what he understood and then instilled it in his head.

In fact, just when he discovered that Guo Xiaoyi still didn't quite understand what he talked about yesterday, he had already thought of many ways to break down these mathematical knowledge points into simpler ideas.

"I..." Li Ke was speechless. He really didn't expect that this student who suddenly appeared in the class would be so stubborn.

"Okay, come up, you will tell the rest of today's content!" Li Ke threw the chalk in his hand directly on the lectern, then walked directly off the lectern and stood next to the window in front of the first row of the classroom.

Wang Yufei walked up to the podium silently, then lowered his head and glanced at the lesson plan placed on the podium by Li Ke, then raised his head and looked at Guo Xiaoyi calmly, and said: "Guo Xiaoyi, you can sit down now."

"Pfft..." There was almost another burst of laughter in the classroom, but after Li Ke looked around the classroom with cold eyes, the laughter quickly disappeared.

After all, No. 1 Middle School in the provincial capital is a key middle school, and Class 1 of Grade 3 is also a key class, so the teacher's prestige is naturally very high.

However, Wang Yufei on the podium ignored this. He watched Guo Xiaoyi sit down, and then looked at himself hopefully, and suddenly felt inexplicably good.

"The content we want to master today is quadratic equations. In fact, Teacher Li has already explained most of the theoretical things very thoroughly. What everyone lacks now is not an understanding of the basic concepts, but how to clarify the ideas for solving problems."

"In fact, there is only one general idea for solving problems in mathematics, which is to simplify the complex, deduce the unknown from the known, and then get the answer. There is a line between the conditions of each question and the answer. This line may

It’s a formula, a theorem, or it could be a lot of formulas or theorems, but it remains the same. What we have to do is to find this line very skillfully.”

"First of all, we will explain it in the form of examples. First, I will give you a question."

After speaking, Wang Yufei picked up the chalk, turned around and faced the blackboard, and casually wrote down an example question.
Chapter completed!