Chapter 67: Mingzhu Mengchen was born late to me
Neither Xu Qingshan nor Teacher Ji was aware of the changes in external things.
The first-year high school students are also well-behaved. With these two giant Buddhas here, they don't make any noise or make a fuss.
"Phew, okay."
Xu Qingshan stopped writing, took a deep breath, subconsciously looked up at the clock, and was stunned for a moment.
He didn't feel the passage of time at all just now, and more than an hour had passed.
Normally at this time, when their senior year of high school is over, he has already finished his run.
"hiss"
Teacher Ji took a big breath of cold air, and the students sitting in the front row under the podium felt that the temperature around them had dropped a few degrees.
"Change the inequality recursion to the equality recursion, but because scaling can only get an upper bound that cannot be equal, it is not consistent with the upward convex sequence. For this reason, we analyzed that all the numbers in bk should be in the limit where n tends to infinity. Reach the consistent minimum, and then make the step of the recurrence relationship of ak minimum. "
Teacher Ji's eyes moved rapidly and repeatedly, and he quickly muttered words that the young boys around him couldn't understand.
"Same order and use Chebyshev's inequality to reduce the size. The goal is transformed into just proving that max (1≤i≤n) bi tends to 0 when n tends to infinity."
"Split the main part and the minimum part, sum up the fixed values respectively, and control the sum to zero, and use a simple limit."
Teacher Ji's palm suddenly slapped on the paper full of formulas.
"This idea is so clear, so clear."
"Xu Qingshan, have you really never learned mathematics?"
"Really not? I haven't studied seriously before. Isn't it a bit late now?"
Xu Qingshan looked at the paper. After Teacher Ji had just explained the knowledge points and simple ideas of mathematical analysis to him, he felt that this question was quite routine.
Teacher Ji stared at Xu Qingshan with sharp eyes, but when he remembered the identity of the young man in front of him, his eyes darkened.
"It's too late, alas."
Teacher Ji sighed regretfully.
He thought he had met a mathematical genius with great potential.
But the timing of the encounter was not clever.
October of the last semester of his senior year in high school means that Xu Qingshan has no chance to participate in the competition.
The process of high school mathematics competition is very long.
The preliminaries are organized by each province from April to September each year at different times. About tens of thousands of people from each province participate, and the final number of contestants who enter the semi-finals ranges from several thousand.
In the league stage, in September each year, provincial first, second, and third prizes are selected by each province, and the scores are scored by each province. The first prize is sent to the organizer for re-evaluation, and the final result is announced by the China Association for Science and Technology. At the same time, each province selects provincial team members based on rankings. The number of provincial team members is determined by the performance and results of each province in the CMO (Chinese Mathematical Olympiad) last year.
The final stage, which is also the CMO, takes place in November. The first, second, and third national awards selected are the often referred to as gold, silver, and bronze medals, and the top 60 players in the national competition can enter the national training team.
In the training stage, in March of the following year, the national training team conducted two rounds of extremely difficult internal selections to determine the 6-member national team to participate in the IMO (International Olympic Games).
The final IMO will be held from June to July of the following year, with up to 6 players and two team leaders from each country.
Although students are required to be under 20 years old and have the highest education level in middle school, the contestants who compete are basically in the first and second grades of high school.
Longjiang Experiment has put a lot of effort into setting up the competition team. From scratch, to now it has stable provincial awards and the goal of winning medals. It is a hard work to develop.
Teacher Ji is also the founder and director of the Longjiang Experimental Mathematics Competition Team.
He looked at Xu Qingshan in front of him, as if he were watching a bright pearl gathering dust, meeting the right person at the wrong time.
Although it is not appropriate to say so.
But Teacher Ji, as a science student who doesn't understand love, finally understood the sincere emotion contained in the sentence "I was born before you were born, and I am old after you were born."
If I had discovered Xu Qingshan when he was a freshman in high school.
What if he was the math teacher for this senior year of high school?
If
Damn Duan Yongming!
It's okay if Teacher Ji doesn't think about it. The more he thinks about it, the more angry he becomes.
In Teacher Ji's opinion, a genius like Xu Qingshan who shows such potential and learning ability, if he is properly trained by this sweeping monk, will at least be a new star in the digital competition who can protect copper, stabilize silver and compete for gold.
This is the person who can establish the first person in the history of Longjiang Experimental Mathematical Team in one fell swoop!
Wow ya ya!
Duan Gou and I vow to be incompatible!
Xu Qingshan heard Teacher Ji's words and saw that his face was uncertain, his eyes were burning with anger, and he was a little unsure.
"It's okay if it's late. I'll just learn some simple basic exercises to exercise my thinking. In fact, this is the first time I've discovered that mathematics is actually quite interesting."
Xu Qingshan took the initiative to enlighten Teacher Ji. This teacher is actually quite good. Although he is a little bald, he is still very serious when explaining knowledge points and topics to himself.
Xu Qingshan didn't tell lies. He never studied mathematics seriously in his previous life. After graduation, he even used a mobile calculator to add, subtract, multiply and divide, and he had to count dates with his fingers.
No wonder some people It is said that the peak of most people's knowledge is in the college entrance examination.
"You and me. Alas."
After hearing what Xu Qingshan said, Teacher Ji wanted to say something, but something stuck in his throat.
Originally, he was already adjusting his mentality.
Xu Qingshan's words shocked him again.
"Teacher, what do you think of the material fee?"
Xu Qingshan asked tentatively, these materials are not cheap.
"No need, just take them all. I'll give you new ones when they're used up. Do you have a phone number?"
"have."
"Okay, this is my phone number. If you have any questions while doing the questions, you can call me at any time. If you have many questions, you can come to Houde Building to see me at any time."
Teacher Ji wrote his name and phone number on the paper, and Xu Qingshan glanced at the name.
Teacher Ji’s name is very charming: Bo Yang.
Xu Qingshan subconsciously glanced at Teacher Ji Baiyang's extreme intelligence, and suddenly felt that there was indeed a beauty of the cypress tree that took root in the northwest.
"Let's go, it's almost time, I happen to be here for evening self-study."
"Teacher, don't you have to go have a meal?"
"I'm not hungry. You should go back and eat quickly. My family must be waiting impatiently. You know that you can make it directly after listening to it, so I will let you come over for self-study in the evening."
Ji Boyang was very melancholy.
Putting aside his anger towards Duan Yongming, Teacher Ji is still quite gentle.
"It's okay, I'm not hungry either. Then teacher, should I leave first?"
Xu Qingshan had already spotted the sneaky girl outside the classroom of Class 1, Grade 1.
"Go ahead, I just want to be quiet."
Quietly? Miss our beautiful head teacher?
Xu Qingshan misinterpreted and maliciously slandered.
He himself has already walked out of the door.
"Oh, that's right"
Teacher Ji seemed to have just remembered something and was about to call Xu Qingshan, but saw a girl outside the classroom raising her head and handing the burrito to the boy with both hands.
He pulled back his hand and stopped talking.
"well."
Unable to help but sigh again, Teacher Ji continued to correct the students' homework.
After the boy outside the classroom left, he looked at the girl who brought the boy food, feeling a little surprised.
"Tong Tong, come here."
Teacher Ji shouted softly to Tong Tong, who was about to return to his seat.
Tong Tong was a little cautious.
"teacher."
"Do you know Xu Qingshan?"
"Well he's my brother."
"oh"
The chat between teachers and students was a bit awkward, but Teacher Ji didn't care why Tong Tong's surname was Tong and Xu Qingshan's surname was Xu.
Teacher Ji suddenly moved his eyes and pushed up his glasses.
"Come on, Tong Tong, I remember that you got full marks in mathematics in both the entrance exam and the monthly exam. The teacher will tell you some knowledge about this question. Come and try it out."
Teacher Ji pulled out another paper from the side, which was exactly the same as the paper given to Xu Qingshan just now.
He pressed his fingers on the paper and looked at Tong Tong expectantly.
(End of chapter)