Chapter 17

The next day, the ladder classroom where the competition tutoring class is located.

Gao Yunjin, wearing a plaid shirt and a little bald, walked into the classroom.

Looking around, looking at the seats that were full of seats, a satisfied expression appeared on his face.

Compared to the intrigues in competition tutoring institutions, Gao Yunjin prefers to teach students in this pure campus environment.

Especially when the pairs of eyes looking at themselves with a full desire for knowledge, it is a kind of comfort from the whole body from top to bottom.

Haicheng No. 1 Middle School spent a lot of money to invite him, and Gao Yunjin knew very well what the school was aiming to.

But Gao Yunjin didn't mind giving Haicheng No. 1 Middle School a satisfactory answer.

At the same time, I left a glamorous mark on my resume again!

More than ten years of tutoring experience have made Gao Yunjin not doubt that he cannot achieve the school's goals.

Gao Yunjin put a book of tutoring materials from his briefcase onto the podium and put on a loudspeaker.

"Okay, classmates, we'll start class. However, before the lecture officially begins, I'll apologize to the students."

Gao Yunjin's words made the students confused.

"Yesterday, due to my negligence, a post-class question assigned to you was wrong. The question to solve the "shouldest separation edges" was an IMO test last year, but I accidentally stuck it in the homework assigned to you." Gao Yunjin explained,

"I want to say sorry for this. The difficulty coefficient of that question is too high, and it is impossible for me to get such a difficult question in the Mathematics League. So, just ignore that question directly. When you are in college, you may try to solve that question."

"But, teacher, I seem to have solved the question you mentioned." Just as Gao Yunjin opened the tutoring book and was about to start the lecture, a sound suddenly rang in the classroom.

Looking in the direction where the sound came, Gao Yunjin saw Bi Qi and his raised arm.

Gao Yunjin clearly remembered that this classmate's name was Bi Qi, because in a recent test, Bi Qi was one of the most outstanding people, close to the level of saving first place.

"Student Bi Qi, what you said is true. Did you really solve that problem?"

Gao Yunjin's tone was deeply surprised, because in his opinion, it was normal for no one in the entire tutoring class to answer it with the difficulty of that question.

As Biqi is close to the front line of the province, he should have no ability to challenge the IMO test questions at all.

This was the gaze of more than 100 people in the stairs classroom, all focusing on Bi Qi who was sitting in the front row.

This is not the first time, Biqi knows what he should do in such an occasion.

Biqi smiled confidently, "That's natural."

Gao Yunjin's eyes lit up. Could it be that another math genius would rise in his hands? "Then classmate Biqi, hurry up and write your answer process on the blackboard."

Gao Yunjin's tone was already filled with a hint of urging.

As the audience watched, Bi Qi stood up, walked to the podium as if no one was around, and skillfully picked up a piece of chalk.

[Answer: Note the number of strips in the partition edge is L.

First, divide the graph paper into three areas as shown in the figure, dyeing it into three colors, and the thick lines are all separated edges. At this time, there are 56 partition edges. To prove that L≥56, the lines of the graph paper are marked as A1, A2, A3 in turn from top to bottom…]

Five minutes later, Bi Qi stopped writing.

The blackboard is already occupied by a full range of formulas.

Bi Qi turned around, looked at Gao Yunjin on the side of the podium, and smiled faintly, "Teacher, is my answer correct?"

"Correct, completely correct!" Gao Yunjin's tone was excited, and he almost couldn't help but reach out and applaud.

The flowing water is done in one go!

Regarding Bi Qi's answer steps, Gao Yunjin can only use these eight words to describe it.

Genius, this student is really a genius! He is even more genius than that one!

Gao Yunjin looked at Bi Qi, as if he was looking at a peerless treasure.

Bi Qi was a little scared by Gao Yunjin's "coveted" eyes, and subconsciously shivered.

"Student Bi Qi, did you think of this process yourself?" Gao Yunjin asked expectantly.

But Bi Qi gave an answer that disappointed Gao Yunjin, "Sorry, teacher, I got it only after I asked my math teacher to solve the problem."

Gao Yunjin's smile instantly froze on his face, "You, math teacher?"

"That's right, it's Teacher Gu!" Bi Qi's tone seemed to be showing off something, "I saw it with my own eyes. In less than five minutes, Teacher Gu easily solved this problem."

"In less than five minutes?" Gao Yunjin frowned, his eyes slightly deeper.

An IMO question can definitely stump half of high school teachers.

And half of the other ones that can be made will never be done in less than five minutes.

This is far from a level that a high school teacher can achieve.

You know, even he, a gold medal lecturer who has been immersed in the Olympics field for more than ten years, took nearly half an hour to do this topic.

In Gao Yunjin's opinion, this is probably just an exaggerated modification made by Bi Qi to promote his teacher.

Gao Yunjin, who was in a big mood, was too lazy to worry about this detail.

If it weren't for a student, but a high school teacher solved this problem, there wouldn't be much surprise in this matter.

"Student Biqi, you go back. We officially start class."

One hour later, the competition tutoring class ended.

Physical and mentally exhausted students walked out of the classroom one after another.

Gao Yunjin was packing lesson plans on the podium, and the director walked in against the crowd.

"Teacher Gao, how are the students performing? Didn't you make it difficult?"

Gao Yunjin also saw the director of the teaching, and he shook his head, "No, no. The classmates performed very well, and they would give me a little surprise from time to time."

"That's right? Teacher Gao, the competition situation of the students..." The director asked about the purpose of the trip.

"Director Ma, let's talk as you go." Gao Yunjin picked up his briefcase and made a gesture to the director of teaching. "The situation is much more optimistic than I thought. I can guarantee that the number of people who can enter the front line of the province this time is at least two."

The head teacher's face relaxed.

"But Director Ma, if you can approve the plan I mentioned before, I'm sure I will double the number." Gao Yunjin continued.

"Put half of the math class a week for competition tutoring. Teacher Gao, you also know that this plan will not be agreed to at all." The director smiled bitterly.

"I don't need half of the math class every week, I just need not have a math class time." Gao Yunjin raised a finger.

"This..." The director of the teaching director looked hesitant, as if he was really thinking about the feasibility of this plan.

"Teacher Gu!"

Behind him, a surprise voice came, and then Gao Yunjin entered Bi Qi, who was in the class, walked quickly towards a young man.

The young man looked up and was facing Gao Yunjin's eyes.

"Teacher Gao, long time no see." Gu Lu smiled.

"Gu...Gu Lu! How could you appear here!" Gao Yunjin felt a storm in his heart.

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