Siheyuan: starting from the sticky cousin

Qiao Xiu made two cups of tea.

Teacher Chen said: "Qiao Xiu, what happened to what I told you, have you found the right person... I'm going to die of anxiety here, the boss is pressing me hard!"

Qiao Xiu smiled wryly: "No... There are no excellent middle school students in our district, and even fewer are excellent in mathematics. Usually, those who can get seventy or eighty points in the exam are rare. If you want to participate in the Olympic competition, I'm afraid It will discredit the country!"

"Don't be afraid of poor grades!" Teacher Chen said: "As long as you are talented, I can tutor you!"

"Then... I'll look for it again!" Qiao Xiu said, "Otherwise, I'll send it to you later, but I can't say if I'm talented or not!"

"Okay!" Teacher Chen said, "We're still short of the last two places...I'm so anxious!"

"You don't know, in the past few years, Big Brother has won the championship in the International Mathematical Olympiad for five consecutive years. The leader means that we should also go out, so that we can rub the prestige of Big Brother even more Well, we can’t let Big Brother’s prestige down, so let’s follow along, and we can’t lag behind in basic subjects, can we?”

Qiao Xiu had heard about this matter.

Recently, my relationship with my elder brother is not good, but I can't help it, it's hard to find someone.

It has not been many years since Longguo was established, and the basic education is still far behind.

"Jojo... Jojo..."

After the chat, Qiao Xiu called her daughter over and said, "This is Teacher Chen, an excellent math teacher in our country. You sit here and let Teacher Chen test your homework!"

"Ok!"

Yi Qiaoqiao took out his pen and notebook.

Teacher Chen said with a smile: "Good boy, it's really good that you can persist in studying in this environment..."

But the next moment, when he saw the symbols on Yi Qiaoqiao's notebook, Teacher Chen's body suddenly trembled, and he snatched the notebook from Yi Qiaoqiao's hand.

"This... this... child, did you write this?"

"No, didn't you just go to elementary school...how do you know how to deduce points?"

"Isn't this a university course?"

Teacher Chen was shocked.

"It's not me!" Yi Qiaoqiao smiled and said, "It's Jia Wen and Guoguo. They read the book. Last time they borrowed my notebook and wrote something. It's like a ghost. I read it too. don't know!"

"This!" Teacher Chen looked at the contents of the notebook and said, "This is very well written, Qiao Xiu, the two people the child mentioned just now are... 567"

Qiao Xiu was also shocked: No, it's a university course.

"Mr. Chen... Let me tell you, you have to be prepared, don't get excited!"

"Don't worry!" Teacher Chen said, "I'm so excited...you can speak boldly!"

"it is good!"

Qiao Xiudao: "Jia Wen is the kid who went to class with Qiao Qiao. He is only ten years old this year. He is very smart. He should have learned these things by himself..."

"what?"

Teacher Chen stood up abruptly: "What are you talking about...how is it possible...a ten-year-old child...this...this...huh..."

"call……"

"No... help me quickly, I'm dizzy... I'm dizzy..."

boom……

Teacher Chen immediately lay down on the table.

Excessive force when just getting up leads to insufficient supply and demand of cerebral blood vessels.

Teacher Chen was dizzy for a while.

"Look at you!" Qiao Xiu said, "I told you, take it easy, why are you so excited..."

"Okay, okay..." Teacher Chen took a long breath before calming down, and said, "Say it, Qiao Xiu, just say it..."

"Okay!" Qiao Xiu said, "Teacher Chen, the other girl seems to be even stronger. She is Jia Wen's younger sister and she is only six years old this year!"

"Pfft..." Teacher Chen panicked for a while: "Medicine, medicine...my heart-saving pill...".

Chapter 182 (2 more) The clamping theorem and the Mallag must

Clear skies!

Under the blue sky, a layer of hoarfrost on the eaves of the courtyard began to melt slowly, turning into water droplets that hung but did not fall.

In the quiet compound, two uninvited guests on bicycles came.

A very temperamental middle-aged woman, and an old man with gray hair.

"Teacher Chen, this is the compound!"

That's right!

The two who came here were Qiao Xiu and Teacher Chen.

And the place where they came was naturally the courtyard house where Jia Wen and Guo Guo lived.

The third uncle missed class and was smoking at the door.

While fiddling with her sewing basket, the third aunt said cursingly: "Smacking, smoking, when will it be, the family has no money now, and you have no job. You know smoking all day long, so what you smoke is not money?"

The third uncle smiled and said: "Your woman is ignorant, I smoke it to save face, how can a man just throw it away?"

"Yo... Director Qiao!"

After seeing Qiao Xiu, Yan Bugui stood up immediately.

Although he has lost his job now, Yan Bugui respectfully saluted Qiao Xiu for the deep-rooted fear of the leaders' methods: "You are..."

"I'm looking for Jia Wen and Guo Guo!" Qiao Xiu nodded.

"It's in the middle courtyard, I'll show you the way!"

"No need, Teacher Yan!" Qiao Xiu shook her head and said, "I know the way, so I can go by myself...Mr. Chen, please slow down!"

Qiao Xiu took Mr. Chen to the middle courtyard step by step and arrived at the door of Jia Wen's house.

The door was closed. To Teacher Chen's relief, although the door was closed, it was obviously locked from the inside.

Prove there is someone in the family.

"Jiawen...Guoguo, are you up yet?" Qiao Xiu knocked on the door and shouted.

squeak...

Jia Wen opened the door and said, "Aunt Qiao, why are you here!"

"Hehe... I have something to do with you!" Qiao Xiu said, "This is the dean of the School of Mathematics at Forty-Nine City University, and he is also one of the people with the highest level of mathematics in our country. Dean Chen, your name is Teacher Chen That's enough'.!"

"Oh..." Jia Wen's heart was filled with great respect immediately, and he said, "Mr. Chen, hurry up, please come in, old man, come in and do it..."

Invite the two into the room and sit down.

At this time, Teacher Yan, Yan Bugui, came in uninvited, came in with a smile, and said, "I'll make a cup of tea for Director Qiao!"

Obviously, they came here to rub their faces.

Of course, Jia Wen didn't drive them away, and as outsiders, Qiao Xiu and Teacher Chen didn't drive them away either.

This is the most basic etiquette.

"Is this your sister?" Teacher Chen pointed to Guoguo beside her.

Guoguo is lying on the desk reading a book!

"Yes!" Jia Wen smiled and said, "It's called Guoguo, Guoguo, come and salute Teacher Chen!"

"No, no..." Teacher Chen said: "The child is really good, are you reading a book, or what are you doing?"

At this moment, Guoguo was lying on the desk, her brows were furrowed, and her little head kept shaking.

Hearing Teacher Chen's question, she replied, "I'm reading a book, but I thought of a mathematical theorem from yesterday, so I thought about it..."

sizzle...

Yan Bugui gasped three times: Good guy... return the mathematical theorem.

How old is such a special talent to start mathematical theorems?

pretend?

But Qiao Xiu and Teacher Chen didn't think Guoguo was pretending.

Teacher Chen also asked very gently: "Kid Guoguo, what theorem do you want?"

Guoguo said: "The pinching theorem..."

puff……

Next to him, Yan Bugui, who was drinking tea, spit out a sip of tea.

shit...

vulgar!

Regardless of the vulgarity, a child actually uttered such a vulgar language.

What pinching theorem...

This……

so disgusting.

But the next moment, Yan Bugui realized something was wrong.

Not only did Qiao Xiu and Dean Chen not find it vulgar, they even had a hint of joy on their faces.

"My God..." Dean Chen tremblingly took out a quick-acting heart-relief pill from his pocket, and said, "Son, tell me what is the pinching theorem..."

Guoguo said: "It's very simple, that is, in a certain neighborhood, there is always f(x)≤g(x)≤h(x), and if f(x) and h(x) are in the limit of this neighborhood If the values ​​are all a certain constant A, then the limit of g(x) must also be A."

sizzle sizzle...

Teacher Chen hastily swallowed the Suxiao Jiuxin Pill.

Qiao Xiu next to him was overjoyed, and said, "That's amazing, Guoguo, you're only six years old, what's inside your little head, I really want to open it up and see..."