Chapter 18 Manifestation in the Classroom
At this time, Cao Shuxian was much younger than before her rebirth, and her physical condition was much better. Her eyes were still bright, her skin was rosy, and her complexion was quite good.
Before Wang Donglai was reborn, Cao Shuxian's body had accumulated a lot of pain due to long hours of hard work on the construction site. In the end, she was sent to the hospital because of anemia, where she discovered that she had a tumor and had surgery. A moderate operation.
After the operation, Cao Shuxian’s body immediately collapsed and she became much older.
It is precisely because of this that Wang Donglai thinks about making money. Even though he knows that staying up late to work is not good for his health, he still has to work overtime and work full attendance for 200 hours.
The purpose is to make more money and make the parents at home more relaxed.
However, Wang Donglai failed to do this until he was reborn.
"Dong Lai, you should pay more attention to rest recently and eat more nutritious things. This is some food I bought for you. You can keep it in the dormitory. If you are hungry, eat it and take good care of yourself. , did you hear that? "
Cao Shuxian looked Wang Donglai up and down, and stretched out her hand to neatly pull Wang Donglai's clothes and pat the dust.
"Mom, I know, I eat well, on time and on time every day, you don't have to worry."
Wang Donglai patted his chest and assured Cao Shuxian.
"By the way, Mom, why are you here at school? What's the matter?" Wang Donglai asked curiously.
"Your sister Nuonuo has given birth to a baby. I will come back to give you gifts and I will ride there in a while."
Cao Shuxian said as she handed the snacks in her hand to Wang Donglai, and then from He took out three hundred yuan from his pocket and stuffed it into Wang Donglai's hand.
"Leave some money for you, buy whatever you need, eat more meat, and call me and your dad if you need anything."
"The college entrance examination is coming soon. I don't know much about it. You study hard and you can do whatever you can. As long as you can pass the exam, your father and I will support you to go to school. You don't have to worry about tuition fees or anything like that. Just study." Did you hear that?”
“You first Go into the classroom and read a book. I’ll go see your sister again, and then I’ll leave. You go back to the classroom quickly.”
Cao Shuxian rambled on a lot, which might have been uncomfortable if it was Wang Donglai in the past. I am impatient, or feel a little embarrassed.
But a thirty-year-old soul can feel that this nagging voice is full of maternal love.
Mothers are great, and they are not discounted in the slightest because of family circumstances or the beauty or ugliness of their children.
Cao Shuxian didn't know about Wang Donglai's change. When he usually called, he never mentioned his results. Originally, he wanted to give his family a surprise.
But now, he changed his mind.
"Mom, don't worry, I will definitely be admitted to a good university. My scores in these exams are getting better and better. I will definitely get a high score in the college entrance examination. When I finish the college entrance examination, let's Your home will definitely become better and better, and then you will Enjoy your life at home."
"Okay, mom, I'll wait for your good results, but you should pay more attention to your health and don't be too tired, you hear me?" After Cao Shuxian smiled, she agreed, but she was still concerned in the end. Wang Donglai's health has improved.
“Hmm!”
Wang Donglai nodded firmly and agreed.
Cao Shuxian left, went to Wang Chenyue’s classroom to find her, and then took the shuttle bus to deliver gifts.
Wang Donglai was at the door of Class 14, watching Cao Shuxian leave and finally disappear before returning to the classroom.
The arrival of Wang Donglai’s parents attracted a lot of people’s attention, so when Wang Donglai entered the classroom, many students looked at Wang Donglai with incomprehensible expressions.
Wang Donglai ignored these glances at all, and still sat in his seat reading a book with a calm face.
An invisible atmosphere spread around Wang Donglai. Guo Xing, Chen Mengni and others did not speak, and read books extremely quietly.
Under this atmosphere, Class 14 became strangely quiet.
When the math teacher Luo Zhibin came to class, he felt a little uncomfortable.
Standing on the podium, Luo Zhibin was spitting and explaining math problems passionately.
“Come on, look at the blackboard. It is known that the function f(x)=a3x312(a+1)x2+x13.”
"First question, if the tangent equation of the graph of function f(x) at point (2, f(2)) is 9x-y+b=0, find the values of real numbers a and b."
< br>“This question only needs to use the idea of derivating functions. Unlock it, what should I do as the first step as I said before? "
Luo Zhibin wrote a question on the blackboard with passion, and looked back at the many students below with expectation on his face. With a look on his face, he was waiting for everyone's answer.
However, the classroom was quiet.
Seeing the students below either looking at him blankly, looking confused, or lowering their heads, not daring to look at the blackboard, Luo Zhibin felt anxious. Turning my attention to Chen Yanqiang, Xie Yaolin and others, I found that these students with slightly better grades also looked confused, obviously not understanding the solution to this problem.
Finally, he glanced at Guo Xing, but as soon as his eyes came into contact, Guo Xing lowered his head.
"Wang Donglai, you answer this question!"
Seeing that the atmosphere was a bit awkward, Luo Zhibin had no choice but to directly choose someone to answer.
With one mouthful, he directly chose Wang Donglai, who was reading with his head down.
Hearing Luo Zhibin call him to answer the question, Wang Donglai stood up without hesitation, looked at the question on the blackboard, and without even a second of thinking, he opened his mouth and said: "f′(x)=ax2-(a+1 )x+1(a∈R), from f′(2)=9, we can get a=5, ∴f(x)=53x33x2+x13, ∴f(2)=3, ∴(2,3) on the straight line 9x-y+b=0, ∴b=-15”
Like. As if he had rehearsed it in advance, Wang Donglai blurted out and solved the problem very smoothly.
Luo Zhibin on the podium was also a little surprised. He originally saw Wang Donglai reading with his head down, and thought he was not listening carefully, so he called him up and asked him to focus on the blackboard.
In the end, I didn’t expect that Wang Donglai would solve this problem so easily.
What was even more surprising were the students below, because they didn’t even hear clearly what Wang Dong said, but they could tell from Luo Zhibin’s expression that Wang Donglai had solved the problem.
This was obviously a math problem, but Wang Donglai solved it verbally.
No matter how bad he is at studying, it can be seen that Wang Donglai's math level is definitely not bad.
Those who had some mathematical foundation quickly wrote on paper and restored the steps just mentioned by Wang Donglai.
Soon, Guo Xing reconstructed the steps to solve the problem according to Wang Donglai's dictation.
“So awesome!”
"Wang Donglai, you are this!"
"Awesome, I didn't expect there to be such a fierce person in our class!"
The more you know about mathematics, the more you can understand How high is Wang Donglai's mathematics level?
The question they couldn't even understand was easily read out by Wang Donglai without even using a pen.
As Wang Donglai's deskmate, Guo Xing could see more clearly. Wang Donglai was not looking at the blackboard at all, he was just reading a math book with his head down.
It is equivalent to saying that Wang Donglai just heard Luo Zhibin read the question once and already answered the question in his mind.
If Guo Xing hadn’t seen it with his own eyes, Guo Xing would never have believed it.
But the facts were right in front of her, and she couldn't help but question them.
Luo Zhibin on the podium also reacted quickly, with a thick smile on his face, and his eyes when looking at Wang Donglai became extremely kind.
“Wang Donglai’s answer is correct, you sit down first.”
After asking Wang Donglai to sit down, Luo Zhibin did not continue to lecture. Instead, he looked at the students below and said: "I have taught you this knowledge point so many times, and it doesn't work every time. The college entrance examination is coming soon. , this knowledge is a must test, if you don’t know it, you won’t be able to do it when the time comes, and you will be blinded.”
“Look at Wang Donglai, his grades have improved by leaps and bounds in one month. I heard that Wang Donglai comes to the classroom after six o'clock every day and doesn't go back to the dormitory until eleven o'clock in the evening. What about you?"
"Sleeping in class, distracted, in a daze, as if there were thorns on his butt, sitting on the stool? I can’t stop.”
“Forget it, I’ve talked too much, you’re annoyed, and I’m bored too.”
Suddenly, Luo Zhibin reacted and stopped criticizing.
Instead, he continued what he said just now and continued talking about the topic.
After class, Luo Zhibin walked to Wang Donglai's desk and said: "If there is anything you don't know in the future, just come to the office and ask me. With your rate of improvement, your math scores will be greatly improved. Don’t waste the space.”
“Well, thank you, Teacher Luo.”
Wang Donglai naturally did not refute and thanked him seriously.
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(End of this chapter)