The time quietly came to the next morning.

After a simple breakfast, Ren Yan took a physics book for the second year of high school, took a small square of wood prepared in advance, and went to the ninth class of the third middle school without panic.

'I don't know if these boys can really calm down...'

On the way, Ren Yan couldn't help but feel a little worried in his heart.

Even though the students of Class 9 have changed a lot now, Ren Yan still has no bottom in his heart when he lectures according to the script, and he doesn't know if Class 9 can listen to it.

But it can't be helped.

First, Wang Shanhai's warehouse has not yet been found, and he can't carry out the next plan at all.

Second, if these little cubs don't learn the basic knowledge solidly, then his plan will not work.

Although the new direction will bring immeasurable benefits to students, and will also promote their mastery and application of knowledge, it is also not cheap.

If it was still like the ninth class before, starting from scratch for anything, Ren Yan estimated that these guys wouldn't even be able to get started.

Therefore, the step of seriously explaining textbook knowledge is a hurdle that Ren Yan can't overcome.

And even if you take 10,000 steps back, the knowledge of these textbooks still has to be learned in Class 9.

After going to high school for so long and spending so much effort, Class 9 at least has to be admitted to a university, otherwise it would be a shame to say it?

Did you go to high school?

on.

What kind of education?

High school graduation...

Thinking of this possible conversation, Ren Yan felt a blush for the students of Class 9.

If this happens again at a family dinner during the New Year's holidays...

The damage may not be just psychological.

Physically, it's a bit unreasonable for parents not to make an output.

Therefore, for the all-round development of the students of Class 9, Ren Yan still firmly embarked on this path.

Within nine classes.

All the students were looking forward to Ren Yan's arrival, and after yesterday's private analysis by the students, they were full of curiosity about Ren Yan's first lesson of the new semester.

What kind of class can still be used by your own teacher?

Therefore, they got up very early today, and all the physics textbooks were prepared, and all the four physics books from the first to the second year of high school were properly placed in the upper right corner of the desk, and each one was brand new.

Since Ren Yan came to Class 9, the book wall on the desks of Class 9 students has been removed by them on their own initiative.

I don't have to sleep in the future class, even if I sleep, I can be generous, what do you want these book walls for?

They have put all the books in bundles in the dormitory now, hoping to sell them all by the time they graduate from high school.

If this idea had been started earlier, I am afraid that the physics book would have been impossible to find.

But for now, everything is still under control.

In addition to the students of Class 9, in the live broadcast room, netizens are also looking forward to it, waiting for Ren Yan's unusual lecture mode.

And this time, there are also a lot of other players and their 'think tanks' mixed in with netizens.

Their purpose is very simple, to see how Ren Yan uses books to give lectures, study hard, and use them to improve the quality of their teaching.

Netizens in the province have been saying that they are reading from the book, which is really boring.

Looking at it, it is still a teacher's course that is more interesting and ornamental.

Now, let's also learn from Ren Yan, you don't have anything to say~

With all kinds of thoughts, netizens gathered here, and the number of people in Ren Yan's live broadcast room easily exceeded five million again.

The judges in the broadcast room were also chatting and locked the live broadcast room of Class 9.

Soon, the class bell rang.

Ren Yan stepped on the point and pushed open the door of the ninth class classroom.

.....

"Hello Mr. Ren!"

"What are we talking about today?"

Before Ren Yan could speak, the students of Class 9 asked questions, and they were as excited as last semester.

Ren Yan pressed his hand and said casually: "Didn't you talk about physics?" ”

"Did you bring all the physics books you were carrying?"

"Bring it!" The students responded in unison, shaking their brand-new physics books by the way.

The corners of Ren Yan's mouth twitched instantly.

Made, these little cubs really don't have any foundation at all!

"Okay, just bring it!"

Ren Yan continued:

"Now take out the first volume of the second year of high school and turn the first page."

"That's what we're talking about today, buoyancy!"

After that, Ren Yan opened the book casually, and found a basin in Class 9 casually, took a little cold water, and put it on the desk.

The students of Class 9 looked at each other, staring at each other with big eyes, and did not move for a long time.

After Ren Yan was busy with everything at hand, they asked again in confusion:

"Teacher Ren, what did you say?"

Ren Yan frowned: "Turning the first page of the first physics book in the second year of high school, didn't I say it clearly enough?" ”

The students of Class 9 were speechless for a while.

But then I honestly opened the physics book.

Although the current practice of Teacher Ren is somewhat different from what they think, it is difficult to change the nature of the country.

They don't believe it, their own teacher can still read the book or not?!

Then, in the next second, they saw Ren Yan holding chalk and writing a huge formula on the blackboard.

F float = G row = P liquid GV row.

After writing, Ren Yan swore that he pressed the square wood he brought into the basin filled with water.

The next moment, Fang Mu floated up.

Ren Yan took the basin and walked around the ninth class:

"See? This is buoyancy! ”

"Because of the conservation of energy, when this square wood enters the water, it will discharge some water outward, and the discharged water is called displacement in the ship."

"But put it here, it's this G-row, which is the buoyancy generated!"

"And what about this V platoon..."

Ren Yan took the basin and seriously told the origin of the formula.

After a while, I moved from the buoyancy formula to the density formula.

p=m/v

In Ren Yan's view, these two formulas basically complement each other and are closely related, so he took the opportunity to talk about it.

And the ninth class is all sluggish at the moment.

It's not that Ren Yan spoke too fast, they couldn't keep up.

I didn't listen to it at all.

At the moment when Ren Yan wrote down that buoyancy formula, the students of Class 9 felt wrong...

How many of your teachers have taught formulas?!

That's not right!

Later, when Ren Yan took the basin around and began to explain the origin of the buoyancy formula, the students of Class 9 were completely messy.

Made... I really started to talk about the content of the book!

Although it is not a textbook, it is relatively clear and clear, and it is still somewhat understandable compared to other teachers.

But what the hell are we here to listen to this?!

You asked us to bring the books? The result is to follow the content of the book?!

Is this still our beloved Teacher Ren?!

After being stunned for a long time, Ah Wei stood up and said bitterly:

"Teacher Ren, you have fallen!"

"Why are you starting to lose your character like other teachers?!"

"He has no soul for this kind of lecture!"

"What about taking us on waves?! We are not short of this money in Class 9 now! ”

"That's right, Teacher Ren, it's not right for you to do this!"

The other students immediately chimed in, their faces full of pain, and some of them even squeezed out a few tears with good acting skills.

Ren Yan stopped the chalk, propped up the table with both hands, looked at all the students one by one, and said after coughing dryly:

"I understand what you're saying..."

"But!"

"Do you know what I'm talking about?!"

Then he pointed to the formula behind him:

"You know the formula?! Can you calculate the basic buoyancy?! ”

"If someone other than Wang Yu can figure it out, I will take you to the waves immediately, immediately!"

"Is there one?!"

The words fell, and the entire ninth class instantly fell silent.

Ren Yan once again swept the students of Class 9 one by one.

When he looked at Li Cheng, the other party smiled awkwardly:

"Teacher Ren, you understand me, I'm not good at this, I'm good at cooking."

He shrugged his shoulders.

When looking at the squad leader, the squad leader said in a deep voice:

"Teacher Ren, you understand me, I know all these words, but... But they don't know me..."

When looking at Wang Bo, Wang Bo shook his head:

"Teacher Ren, you know me, I have always been in and out of my right ear for these things."

After looking back and forth, Ren Yan covered his heart and said heartbrokenly, following Ah Wei's example:

"You guys are the worst class I've ever had!

！ ”

"I can't get any buoyancy, how can I take you to play?!"

"How are you going to get into college in the future!"

"Ladies and gentlemen, time is running out! It's only about 200 days to be full! ”

"You're going to have to take responsibility for yourself!"

"Did you learn for me?"

Learning from the tone of the teacher in the past, Ren Yan said a lot of things freely, and his mood instantly relaxed.

It's no wonder that my teachers used to like to say these things.

This kind of 'reprimand' that students can't refute is really cool!

Ren Yan snickered inwardly.

Class Nine was stunned when she heard this, and then Xia Yue blinked, and said weakly:

"But, Teacher Ren, aren't we the first class you led?"

Ren Yan stumbled in an instant and glanced at Xia Yue.

Who did you learn this little girl's mending technique?

It's a pity not to play professionally!

Immediately, Ren didn't change his face and coughed twice:

"That's true in theory, but you teachers can still choose a class now."

"For example, in the first class, wasn't Wang Yu attracted by your teacher's personality charm?"

"Presumably, it's not a big problem for your teacher to go to a class."

"And speaking of Wang Yu, look at people!"

"You are the first in the whole grade, and you still have the most basic respect for these basic knowledge!"

"It's not underestimated at all, and now you're still doing your own calculations on scratch paper?!"

"Look at you again, ah, what is like others?"

"If you're still like this, then the teacher may really have to go to the first class..."

After that, Ren Yan shook his head sadly.

The students of Class 9 also took the opportunity to look at Wang Yu.

I saw Wang Yu's serious expression, his eyes burning, and he kept writing and calculating on the draft, and a good student's sense of déjà vu came to his face.

The hearts of the students in Class 9 sank.

Damn, this product won't be an undercover agent sent by Teacher Ren or a class!

In order to continue to compete with himself for Teacher Ren?!

And look at the current appearance of my cheap teacher, this is really exciting!

At this moment, the alarm bell sounded in the hearts of the students of Class 9.

Although the former teacher said that he would always take the ninth class, he also said to Mr. An that he would not let go of each other's pigeons?

But the result?

A man's mouth, a deceitful ghost!

Made, in the end, we don't have to work on our own?

After glancing at each other, the students of Class 9 nodded heavily, and then looked at Ren Yan with a look of resignation.

Ren Yan immediately put on a smiling face.

"Then let's talk about the various other cases of buoyancy, and now turn to the third page of the book."

As the words fell, there was a sound of flipping books in the classroom.

Only Wang Yu scratched his head, and his brows gradually deepened.

Is there anything else I haven't considered? Although the direction of yesterday's dinner was generally correct, there were still some slight deviations...'

'Where is it?' ’

'Ahh

！ It's so uncomfortable! ’

Wang Yu's hair is even more messy...