"See? This is buoyancy!"
"Because of the law of conservation of energy, when this square wood enters the water, it will discharge some water. This discharged water is called displacement in the ship."
“But put it here, it’s this g-displacement, and that’s the buoyancy that’s created!”
"And this V row..."
Ren Yan held the basin and explained the origin of the formula seriously.
After a short while, we went from talking about the buoyancy formula to the density formula.
p=m/v
In Ren Yan's opinion, these two formulas basically complement each other and are closely related, so he just went ahead and explained them.
At this moment, all the students in Class 9 were in a daze.
It’s not that Ren Yan spoke too fast and they couldn’t keep up.
But I didn't listen at all.
The moment Ren Yan wrote down the buoyancy formula, the students in Class 9 felt something was wrong...
How often have my teachers taught me formulas?!
This fucking situation is not right!
Then, when Ren Yan turned the basin around and began to explain the origin of the buoyancy formula, the students in Class 9 were completely confused.
Damn...Teacher Ren actually started teaching according to the contents of the book!
Although it cannot be said that he was reading from a textbook, his presentation was relatively clear and concise, and compared with other teachers, it was still more or less easy to understand.
But is this what we are here for?!
You asked us to bring books? And the result is that we just follow the contents of the books?!
Is this still our beloved teacher Ren? !
After being stunned for a while, Wei stood up and said with great sorrow:
"Teacher Ren, you have fallen!"
"How come you're starting to become like the other teachers and lose your uniqueness?!"
"This kind of lecture has no soul!"
"What about the promise to take us on a trip?! We in Class Nine don't need this little money right now!"
"That's right, Mr. Ren, it's wrong for you to do this!"
The other students immediately joined in the drinking, their faces filled with sorrow, and some of those with good acting skills even squeezed out a few tears.
Ren Yan stopped writing, put his hands on the table, looked at all the students one by one, coughed twice and said:
"I understand what you are saying..."
"but!"
"Do you understand what I'm saying?!"
Then he pointed to the formula behind him:
"Do you understand this formula?! Can you calculate the basic buoyancy?!"
"If anyone other than Wang Yu can figure it out, I will take you guys out right now!"
“Really?!”
As soon as the words fell, the entire Class 9 fell silent.
Ren Yan once again scanned the students in Class 9 one by one.
When he looked at Li Cheng, he smiled awkwardly:
"Teacher Ren, you understand me. I'm not good at this. What I'm good at is cooking."
After saying that, he shrugged.
When he looked at the squad leader, he said in a deep voice:
"Teacher Ren, you understand me. I know all these words, but... but they don't know me..."
When he looked at Wang Bo, Wang Bo shook his head:
"Teacher Ren, you know me well. I always let these things go in one ear and out the other."
After looking around, Ren Yan covered his heart and said in grief, imitating Ah Wei's expression:
“You guys are truly the worst class I’ve ever taught!
!”
"If I can't even do the basic buoyancy, how can I take you guys out to play?!"
"How are you going to get into college in the future?"
"Everyone, time is running out! At most, there are only about 200 days left!"
"You have to take responsibility for yourselves!"
“Are you studying for me?”
Imitating the tone of his former teacher, Ren Yan spoke a lot and felt instantly relieved.
No wonder my teachers in the past liked to say these words.
This kind of "scolding" that students can't refute is so damn satisfying!
Ren Yan smiled secretly inwardly.
Class 9 was startled when they heard this, then Xia Yue blinked and said weakly:
"But, Mr. Ren, aren't we the first class you taught?"
Ren Yan staggered for a moment and glanced at Xia Yue.
Who did this little girl learn these finishing-hit techniques from?
It would be a shame if you don't pursue professional career!
Then, Ren coughed twice without changing his expression:
"That's true in theory, but I can still choose the class now, teacher."
"For example, in Class 1, wasn't Wang Yu attracted by your teacher's charisma?"
"I think it won't be a big problem for your teacher to go to Class 1."
"And speaking of Wang Yu, look at him!"
"Even though you are the top student in the grade, you still have the utmost respect for these basic knowledge!"
"I didn't underestimate you at all. You're still calculating on your own on a piece of scratch paper?!"
"Look at you guys again, ah, how can you compare to them?"
"If you guys keep doing this, then the teacher might really have to go to Class 1..."
After saying that, Ren Yan shook his head painfully.
The students in Class 9 also turned their eyes to Wang Yu.
Wang Yu looked serious and his eyes were burning. He kept writing and calculating on the draft, and he looked like a good student.
The students of Class 9 were startled.
Holy shit, this guy couldn’t be a hire hired by Teacher Ren or an undercover agent sent by Class 1!
Just to continue competing with me for Teacher Ren? !
And looking at the current appearance of my cheap teacher, I am really moved!
At this moment, alarm bells rang in the hearts of the students in Class 9.
Although Teacher Ren had said before that he would always teach Class 9, he also told Teacher An that he would not stand the other up?
But what is the result?
A man's mouth is a lie!
Damn, in the end, don’t we still have to work hard on our own?
After looking at each other, the students in Class 9 nodded heavily, then looked at Ren Yan with a resigned look on their faces.
Ren Yan immediately put on a smiling face.
"Then let's talk about other aspects of buoyancy. Now turn to page 3."
As soon as he finished speaking, the sound of flipping pages of books could be heard in the classroom.
Only Wang Yu scratched his head, his brows gradually deepening.
"Is there anything else I haven't considered? The wind direction at yesterday's dinner party was generally correct, but there were still some minor deviations..."
"Where exactly is it?"
'ah!
! It's so uncomfortable! '
Wang Yu's hair is even messier...
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