When he woke up this time, Chen Zhou felt like he was a different life.

“Sleep so comfortable…”

Chen Zhou stretched his waist on the bed, then reached out to touch the head of the bed.

Touching the phone, picking it up and looking at it.

"Damn it! It's over..."

The mobile phone display time is 10:45.

Chen Zhou hurriedly jumped out of the bed and quickly put his clothes on his body.

But I was wailing in my heart. It was a pleasure to sleep, but Lao Wang was probably going to explode.

"Hey, Chen Zhou, are you awake?"

Hearing this voice, Chen Zhou subconsciously shrank back.

Looking further to the door, the old-fashioned man he didn't want to see was standing at the door.

Then, I was holding a bowl of noodles?!

"Wang...Teacher Wang, why are you here? Hurry... Please sit down..."

Chen Zhou said, pulling his clothes, pulling out the bench, and asking Wang Xuehui to enter the house.

"Are you okay? I see you didn't go to class in the morning and didn't ask for leave." Wang Xuehui put the noodles in his hand on the table, walked up to Chen Zhou, and asked with concern.

"I...sorry, teacher, I overslept, I didn't know why yesterday..."

This was the first time Chen Zhou overslept in his school history in more than ten years. He had never seen it before, so that Chen Zhou even stuttered in explanation.

However, what Chen Zhou did not expect was that Wang Xuehui interrupted him with a smile: "Did you study too late last night? And did you learn that it was almost dawn the night before?"

Chen Zhou was stunned and said slowly: "Teacher, how do you know?"

"You don't have to ask me how I know. You can't do this in the future, do you know? The body is the cost of learning. Although we emphasize hard work, people are not ironclad. You don't sleep all night, and so during the day

High-intensity study, and you didn't sleep at noon yesterday, how could you bear it!" Wang Xuehui looked at Chen Zhou and said, "Go and wash your face and eat this bowl of noodles. Forget it today, you can make up for it.

Let me give you a review. If you are late in the future, I will ask you to make a review in front of the whole class.”

Chen Zhou looked at Wang Xuehui and was a little uncertain. Is this old Wang serious? Is it so light and caring?

Is it true that there is a saying that academic performance is good or bad?

Seeing that Chen Zhou was not moving, Wang Xuehui urged, "Go quickly, it will get colder in a while and it will stick together."

"Oh, okay, thank you teacher." Chen Zhou came to his senses, nodded, walked out of the house quickly, brushed his teeth and washed his face.

Wang Xuehui sat in front of Chen Zhou's table, looking at the scattered review materials on the table, and frowned.

After looking at the whole room, there was almost no empty space, with draft paper and old materials piled up.

"I work hard to study, but can't I clean up this room and this table?" Wang Xuehui couldn't stand it anymore and helped Chen Zhou sort out the information on the table.

When Chen Zhou returned to the house, he saw that Wang Xuehui had already put the review materials on the table in a small pile of subjects neatly.

Wang Xuehui was watching with a piece of draft paper attentively.

Chen Zhou thought for a while, walked closer silently, and looked at Wang Xuehui's gaze.

On this draft paper, he wrote notes on his learning of the Lagrangian median theorem and some application examples.

Fortunately, it's not a messy note...

I took a look at the backpack again and it was intact and had not been opened. Then... the small papers and handouts that were not made should be safe.

"Ahem..." Chen Zhou coughed twice before asking knowingly: "Teacher, what are you looking at?"

Seeing that Chen Zhou was back, Wang Xuehui pushed the bowl of noodles and said, "You eat the noodles first."

Chen Zhou obediently picked up the bowl and started eating.

Wang Xuehui focused his attention on the draft paper again. After reading it all, he said, "Chen Zhou, when did you learn this?"

Chen Zhou thought for a while and replied: "I learned it recently."

Wang Xuehui asked again: "All of them are self-taught?"

"Yes." Chen Zhou nodded.

Wang Xuehuiqi said: "You can't get to know these knowledge normally. How did you think of learning these things?"

"Uh... Just to understand the problem more simply, I searched on Baishuo, and then this theorem appeared. When I was curious, I clicked in and took a look. It felt quite interesting, so I learned it.

"Chen Zhou reluctantly explained this reason as his learning experience.

"How is it like learning?"

"It's pretty good, it's useful when solving some function problems."

After talking about this, Wang Xuehui nodded with gratitude. What else can such a student who is eager to learn besides studying make him late?

Objectively speaking, Wang Xuehui is not wrong.

After a pause, Wang Xuehui thought of something and said to Chen Zhou: "If, the teacher tells you, this theorem cannot be used directly in the college entrance examination?"

"No way? Why can't you use it directly? What if you use it?" Chen Zhou was full of doubts and confusion. Such an easy-to-use theorem, theorem I learned after cultivating immortals and exploding livers. You told me that you can't directly

use?

Wang Xuehui explained: "Because this is the knowledge of advanced mathematics and does not belong to the category of high school mathematics. High school mathematics cultivates basic mathematical literacy. It emphasizes mathematical thinking and the standardization of each problem-solving step.

”

"Like the Lagrangian median theorem, not to mention how many students there are, even if everyone knows it, they all remember it. But what I remember is just the theorem itself, and it is almost impossible to understand the ins and outs of this theorem.

Understand. In this case, it is just a trick to use it when solving the problem. Moreover, once you write it wrong, it is more likely that you won’t get one point.”

"But then again, I really understand the ins and outs of this theorem, know the method of proof, and don't care if I use it directly, right?"

After Wang Xuehui said something, Chen Zhou didn't react for a long time, so the noodles he picked up were hung in the air.

This is a complete question of angle.

When Chen Zhou was learning the Lagrangian median value theorem, he thought about how to use it directly and how to solve the problem easier.

But Ignore the fact that I took the college entrance examination.

The college entrance examination can be said to be an examination of twelve years of basic education. If you use advanced mathematics knowledge beyond the syllabus, it may make solving problems simple, but as Wang Xuehui said, if you write incorrectly, what will you use to score?

The reason is also very simple.

The questions you have solved step by step with basic knowledge can show the achievements of your study over the years.

But if you use knowledge beyond the outline and substitute it directly into the theorem, you will be able to see nothing.

Not to mention, even substitution is wrong.

Chen Zhou understood it from Wang Xuehui's perspective.

But when he thought that this was a hidden task of the system, he would never let him learn a theorem that could not be used even if he could use it. Chen Zhou only felt tired.

If you contact Wang Xuehui again, it turns out that cultivation of immortality is just the beginning, and the big fish from the median value theorem of Lagrangian has just surfaced a little.

Chen Zhou sighed silently in his heart, finished cutting the noodles, and said to Wang Xuehui: "Teacher Wang, I understand. Thank you, I will use this theorem carefully. Also, will you take this bowl away?"

"Bowl, why should I take it away? I'll give it to your landlord."

"landlord?"

"He is my brother."
Chapter completed!