If the middle-aged teacher hears the words of the students, he will definitely cry out for grievances. Pen, fun, pavilion www. biquge。 info

In the past, they secretly said that they were fat, ugly, incompetent, small-bellied, and loved to hold grudges, which was nothing.

After all, these are all truths.

But this time, he really didn't think Chen Jiayao was right, so he didn't speak.

It's really because of what kind of lottery model, lottery model or something, he didn't understand it at all!

He is somewhat familiar with these two terms, as if he learned them in college, but now that so much time has passed, who still remembers those?

But there was one thing he understood.

That's what Chen Jiayao said, no matter how you catch the ball, no matter how many times you draw it, the probability of hitting the white ball is unchanged.

Because the standard answer is written like this, this is also an idea to convey in this question, it does not require high school students to understand the question thoroughly, but only teaches them to solve it in a simple way of thinking the next time they encounter this type of question.

As for what kind of model, as a teacher, of course, he knows that many permutations and combinations of problems are not so difficult, as long as you change the angle slightly, think differently, and replace the original problem with a simpler mathematical model, it will often become very simple.

The reference answer above also turned this question into a relatively simple model, and he did plan to talk about it like this, he planned to wait for Chen Jiayao to say that he couldn't answer this question, knock her first, and then go up and talk about it himself.

But now the situation seems to be a little different from what he thought.

"That-classmate Chen Jiayao, you sit down first." After a while, the middle-aged teacher waved his hand and said, "What about this, the problem you are encountering now can be completely solved with the knowledge of high school." Of course, the teacher is not saying that your method is wrong, but this question is not so complicated, and it is not good for you to learn the knowledge of the university too early, so as to be a man, you must be down-to-earth, and don't be ......ambitious."

"The teacher will talk about this question in person, and the students will listen carefully......"

After that, he walked to the podium, picked up a piece of chalk, and wrote on the blackboard.

He was indeed taking care of himself, because most of the attention of the students in the classroom was now on him.

"University knowledge?"

"The knowledge that Chen Jiayao used to solve the problem just now was only learned in college?"

"Ah, she really knows that question, isn't she blind?"

“”

……

……

For these senior high school students, college is a place they yearn for, but it is very mysterious, and they have worked hard for so many years just to be admitted to a good university?

So when they heard the math teacher say that Chen Jiayao used university knowledge to solve the problem, they were so surprised.

What is the absolute probability, the lottery model, the lottery model......

These things just sound high-end.

However, the most surprising thing was Chen Jiayao's girlfriends.

They know how negative Chen Jiayao was in her studies some time ago, a week ago when they made up classes during the summer vacation, Chen Jiayao's math test had just passed, why did she have such a big change after only a few days?

It's not like it's not a day, like every three autumns.

This is obviously a different person!

Especially the table mate who knows Chen Jiayao best, looking at her test paper is densely packed with notes, and each question is solved in at least two ways......

Her eyes suddenly widened, and she looked at Chen Jiayao directly, as if she suddenly didn't know her.

There is a good saying that when your friend fails the exam, you are sad, and when your friend takes the first exam, you are even more sad.

Chen Jiayao's table mates feel like this now.

Obviously, when we were playing together a few days ago, we were still scolding the math teacher, and at the same time, we made an appointment to apply to the same school even if we couldn't get into a prestigious university, and be best friends for life.

But you said that you would be a scumbag together, but you secretly became a school bully......

After a while, when the students looked up at the blackboard, the middle-aged teacher had already written almost half of the blackboard.

And looking at the way he is struggling to write, I'm afraid he won't be able to finish it for a while.

Looking at the dense problem-solving process on the blackboard, everyone was stunned in their seats.

"This question doesn't have to be that complicated......"

The middle-aged teacher's words just now were still echoing in their ears, but when they recalled it at this time, it was so ironic.

What does it mean not to be so complicated?

Chen Jiayao wrote the answer in one sentence, you wrote half of the blackboard and didn't end it, this is the simple method that the teacher said?

Even though we read less than you, you can't lie to us, because we are not blind......

Ding Zero......

At this time, the bell rang at the end of class.

The bell at this moment was like a natural sound for the middle-aged teacher, he breathed a sigh of relief, threw the chalk on the table, and said "Students, write down the answers, we will talk about this question in the next class" and hurriedly walked out of the classroom.

He really can't stay in the classroom anymore, shame on him!

Just now he said that Chen Jiayao's question is not so complicated, but in fact, he just said it casually, thinking that the reference answer was only a few lines, who knew that there would be so many ......

This face is slapped, smacked!

As soon as the middle-aged teacher left, Chen Jiayao's seat was surrounded by several girlfriends.

"Yaoyao, come on, you haven't come out to play in the past few days, what are you doing?"

"That's, that's it, why did you suddenly become so powerful, don't lie, hurry up and recruit from the truth!"

"Hee-hee, you didn't see the math teacher's face just now, I want to laugh when I think about it......"

“”

"Okay, okay, I don't lie to you, I've been reading at home for the past few days." Chen Jiayao looked at her best friend and said with a smile.

She won't tell them that she has a tutor who is young, handsome, and good at teaching!

said this, but in my heart I was thinking about how to go back at night and thank Teacher Li, so that she breathed a sigh of relief in front of the math teacher today.

"And said not to lie to us, my mother chatted with Aunt Wu last time, and she said that she recently hired a tutor teacher for you, and you little girl is becoming more and more dishonest!" A girl with a blinking ponytail immediately dismantled her.

"Huh? Why does my mother say everything......" Chen Jiayao's face immediately became bitter.

"Let's not talk about this matter first, you can tell us about the question just now." A girl said: "I can't understand the process of the teacher writing on the blackboard, what is the absolute probability you just said, the lottery model, and the lottery model?" ”

"That's right, classmate Chen Jiayao, you can tell us about this question."

The surrounding classmates also chimed in.

Obviously, the process on the blackboard, they also can't understand it.

Even the girl who had the best math in the class got up from her seat and walked over slowly......