Reborn Bao Guowei, I really didn’t want to be a great writer!

Chapter 4 The teacher with handsome hair and the stupid student

"Do you know the sine theorem?"

Zhang Nianyue nodded frantically, took the pen and wrote the theorem on the paper as if taking credit.

Her handwriting is very delicate, but she wrote this theorem one stroke at a time with heavy strokes, which is obviously the result of rote memorization.

"In any triangle, the ratio of the sine values ​​of each side and the opposite angle is equal and equal to the diameter of the circumscribed circle, that is, a/sinA = b/sinB =c/sinC = 2r=D (r is the radius of the circumscribed circle, D is the diameter )."

It can be said that some girls have a natural advantage in memorizing skills. Bao Guowei believes that even if he had good grades in mathematics in his previous life, it would be difficult to memorize formulas and theorems word for word.

But in his previous life, he scored 140+ in mathematics in the college entrance examination and asked - does mathematics still need to be memorized?

Zhang Nianyue memorized it well and was great, but it was useless.

"So you know how to do your questions, right?"

Zhang Nianyue: (￣△￣；)

"sinA=2sinBsinA, do you know how to get it?"

Zhang Nianyue: (￣△￣；)

"Convert the sine theorem to equal a*sinB=b*sinA. Is this understandable?"

Zhang Nianyue: (*^︹^*)

"By adding it into the calculation, we can get sinB=1/2. Do you understand this?"

Zhang Nianyue: (￣△￣；)

"Pa!" Bao Guowei slapped himself on the forehead. If it weren't for twenty yuan, he would never be able to endure such torture!

At this moment, he finally understood why the math teacher pointed at them under the podium and yelled, you idiots!

"Oops! Just be patient and speak slowly. I can do it."

Zhang Nianyue had a stubborn look on her face, her eyes widened as if threatening.

Bao Guowei took a long breath and comforted himself.

Don't be angry, don't be angry, twenty yuan, twenty yuan, Si Dankang, Si Dankang, it was me who jumped, it was I who jumped.

Patience, Bao Guowei decided to start from the beginning step by step for this "gold owner".

"because."

"so."

"So."

"Understand?"

Just like peeling off a cocoon, Bao Guowei explained the principles and processes to Zhang Nianyue every time he performed a calculation, so that the other party could really follow the problem-solving ideas.

"△ABC is an acute triangle, so B is an angle of 30 degrees, which is π/6."

Half an hour later, after hearing the final conclusion, Zhang Nianyue was stunned for a few seconds, and the old gears in his head began to turn.

"I'm done!"

With a cheer, Zhang Nianyue jumped up from her chair excitedly.

Bao Guowei slumped weakly on the chair, with a relieved smile on his face.

He sighed, and suddenly felt a sense of déjà vu as when he met a female classmate in his previous life who couldn't learn mathematics.

In the past, there were always a few girls in every class who could not learn mathematics no matter how hard they tried.

Even a very simple formula application is like an obscure bible to them.

"Let's start the next question!"

Looking at the wall clock in the distance, it was almost four o'clock in the afternoon, and he had to rush to the commercial street to buy some stationery.

"What's the next question?"

At this moment, Zhang Nianyue completely believed in the ability of the boy in front of her. Even if she memorized it by rote, she would not be able to explain the topic so clearly.

She herself is the ironclad evidence. Even if she memorizes all the answers, she still has no hope of explaining why!

Twenty dollars was not much to her. It could be said that she carried more than that with her, but now her anger towards Bao Guowei had turned into curiosity.

Although more than ten years have passed since the New Culture Movement, it is still due to the stubbornness of all kinds of old people and children, as well as the deep-rooted traditional thinking.

The penetration rate of new foreign arithmetic such as geometry in schools is still very low. High school students during the Republic of China basically learned the content of later junior high schools. Some students even regarded arithmetic as the most difficult and obscure subject.

At that time, six well-known schools in China, including National Central University and Southwest Associated University, conducted a joint admissions examination. More than 6000 people across the country applied for the examination. The passing rate in mathematics was less than %, indicating the general dilemma among students in mathematics.

This makes the boy in front of me even more valuable. Judging from his unattractive appearance and shabby cotton-padded jacket, he can actually learn arithmetic to such an extent. He must have put in a lot of hard work.

Thinking of this, an ordinary boy who came from a poor family but persisted in studying diligently came to mind.

Immediately, Zhang Nianyue stopped embarrassing the other party, not only because she was convinced, but also for another reason.

She couldn't stand the math problems anymore.

"I believe you. You can tell me the next question next time. I need to digest it well today."

Zhang Nianyue picked up the geometry textbook, opened a few pages, found a question at random, pointed at it with a white onion-like finger and said. “Well, you can tell me this question next time.”

Bao Guowei glanced at the question. It was still a familiar trigonometric function. He even seemed to have done this question in high school.

"In △ABC, the opposite sides of angles A, B, and C are a, b, and c respectively, and satisfy (2a-c) cosB=b*cosC. Find the size of angle B."

The super memory brought by the golden finger even allowed him to clearly remember the details of the previous questions and blurt them out.

"The answer is B=π/3"

"I'm willing to admit defeat. Before I give you these twenty dollars, you have to call me."

Zhang Nianyue took out an exquisite wallet from her bag very readily, but she was stunned when she was halfway through her words. Then she put down the wallet in her hand and opened the last page of the book. She turned the pages with a clatter.

After finding the reference answer to that question, Zhang Nianyue raised her head and looked at Bao Guowei as if looking at a monster.

Bao Guowei, who walked out of the Gushan Pavilion, put the twenty-dollar banknotes into his coat pocket and put them together with the three yuan he had taken from Lao Bao earlier. The brand-new banknotes and greasy money were mixed with black mud. The silver dollar provides a stark contrast.

Patting the money in his arms, Bao Guowei felt relieved. Sure enough, no matter in which era, it is difficult to move without money.

Stepping on the brick and stone ground that was built more than a hundred years ago, it is now approaching evening, and the golden sunset shines on the water of the West Lake, giving off a reassuring light.

Several boys wearing modified Chinese tunic suits passed by, and their hair styles were parted in the middle and side-parted, which seemed a bit rustic to Bao Guowei.

Most female students wear student skirts and cheongsam. Female students in this era are also "not afraid of the cold".

For a moment, the texture in front of him made Bao Guowei feel like he was making a movie about the Republic of China.

The commercial street you want to go to is on Lakeside Road opposite the museum. You can see it by just following the wide road of West Lake to the west.

Bao Guowei, who lost his beloved little electric donkey, could only rely on his two legs to run all the way to the commercial street.

But when he left the elegant and beautiful North District, what he saw was a different scene.

The color of the surrounding scenery suddenly dimmed.

The roads have also become narrower, and the heart-rending cries of vendors are hitting the eardrums. Beggars can be seen lying twisted against the walls everywhere on the streets. Their clothes are ragged, their faces are earth-colored, and their helpless eyes are looking around.

"Boss, do you want to take a ride?"

"It only costs three cents to get to Hujiamen. I have strong legs, so I can get there ten minutes faster than an ordinary person!"

As soon as he stepped into this street, a smell of sweat hit the pavement. A shirtless man with an earthy color from his forehead to his lips came closer, obviously noticing that Bao Guowei was sweating profusely.

Before Bao Guowei could recover from this change, he was awakened by the rickshaw master's boss calls one after another.

"No need."

He shook his head politely, trying not to look at the dying people in the corner. He looked at a shop called "Cuimin Stationery Store" not far away and walked over.

The rickshaw master, who was left with a disappointed look on his face, let out a sigh.

When Bao Guowei came out of the stationery store, he had a bulging bag of stationery in his hand and more than 5 silver dollars missing from his pocket. This was already the monthly income of an ordinary long-term worker.

A dozen square sheets of square paper costs 1.2 silver dollars, and a domestically produced fountain pen with domestic ink costs 4.6 silver dollars.

After going to bookstores and stationery stores, I realized that studying in the Republic of China was really not something that ordinary families could afford.

All of a sudden, a quarter of his deposit was lost, which made Bao Guowei, who was not wealthy, feel a little sad.

There is no way, this is all for writing novels and making more money!

Bao Guowei, who was about to turn around and leave, wanted to avoid his sight, but he still inevitably caught a glimpse of a haggard old woman lying on the ground in the alley opposite and the child next to her.

The old woman was dying, and the child's face was dark and frightened.

He sighed and wanted to leave, but halfway through, he suddenly seemed to remember something. He rubbed it in his arms, took out a paper bag from it, and came to the little boy.

"Hey kid, tell me, Master, your hair style is really nice."

Bao Guowei put his pockets in his pocket and looked nonchalant.

The little boy's face seemed to have been smeared with carbon. He looked about five or six years old, and his face that should have been full of collagen was shriveled.

He saw Bao Guowei, who looked like a student in a cotton robe. Although he didn't know what he meant, he immediately changed his words.

"Master, please do well. Master, your hairstyle is so beautiful."

It's a bit heartbreaking to be skilled.

Before he finished speaking, a big white steamed bun was stuffed into the little boy's arms. He moved so quickly that no one around him even noticed, and then fled the street as fast as he could.

Bao Guowei, who was running all the way, had clear eyes, pursed his lips, tightened the "New Youth" magazine he borrowed from the library, and ran towards his home in the north of the city.

(End of this chapter)