Xueba: The knowledge I taught will be returned by crit

This day is Saturday.

As usual, Gu Bai swept a shared yellow car at the school gate and rode towards the home of primary school student Li Sisi.

Although Gu Bai now has a huge amount of more than 1w yuan on him, the tuition fee for the next semester is enough, and even saving some living expenses is enough.

But… No matter how small a mosquito is, it is meat.

Lu Yuan did not give up his job as a tutor of 200 yuan a week.

These days, Gu Bai did not continue to ghostwrite papers, but honestly soaked in the library.

Ask him why he went to the library.

em…..

Of course, it is to solve the mathematical problem Zhou’s conjecture.

But unfortunately, even with the drawings provided by the system, Gu Bai always felt that there was still something missing, and he could not really solve it with his own ability without the drawings.

As for where the problem went wrong with the fall, Gu Bai didn’t know, perhaps… Is it just a touch of inspiration, or an opportunity?

Soon.

Gu Bai arrived at the community where Li Sisi’s house was located.

Parking the shared bicycle, Gu Bai paid 2 yuan and immediately entered the community that was not luxurious but also very luxurious.

Knocking on the door of Li Sisi’s house, it was still Li Sisi’s mother who opened the door, and when she saw that it was Gu Bai, Liu Ping’s face showed a touch of joy: “Teacher Xiaobai is here?” ”

During this time, her daughter Li Sisi’s math scores improved by leaps and bounds, and even Li Sisi’s teachers directly called to praise the child.

This made Liu Ping very happy, and this was the first time she received a praise call from her child’s teacher.

She knew the reason for the improvement of her child’s grades, so she was much more polite to Gu Bai.

“Hmm.” Gu Bai smiled and nodded in response.

“Li Sisi, Teacher Xiaobai is here.” Preparing slippers for Gu Bai, Liu Pingping shouted loudly towards Li Sisi’s bedroom.

“Teacher Xiaobai, you are here.” Li Sisi obviously didn’t just get up, which could be seen from her carefully tied ponytail.

“Teacher Xiaobai, do you know how many points I scored in the math test this time?” Li Sisi behind his hands, half a meter away from Gu Bai, raised his head and looked at Gu Bai who was changing his shoes with a mysterious face.

“How many points? 90？ Gu Bai asked curiously.

Li Sisi’s original math results were not good, of course, they were not bad, and they had always been medium grades in their class, otherwise they would not have attracted Gu Bai for training.

However, for his first training student, who also awakened the system here that day, Gu Bai was still more concerned about Li Sisi’s achievements.

“100, I scored 100 out of 100!”

Li Sisi took out the test paper from behind, slowed down in front of Gu Bai’s eyes, and said with a playful smile.

Seeing that Gu Bai took the test paper and looked at it, she continued to add: “And… I got a perfect score in my class, and I took first place. ”

Li Sisi danced a little, pulling Gu Bai’s arm and jumping happily, and the two little ones trembled.

Gu Bai coughed, a little embarrassed, thinking of words of praise in his mind.

The primary school math paper scored a full score, how to praise, Gu Bai really couldn’t think of it for a while.

Now in his opinion, if it does not involve college and above exams, or the “world problem conjecture”, it should not be praised.

Isn’t it just a matter of having hands?

But fortunately, there is no need to think of any words of praise, and Li Sisi’s mother Liu Ping on the side is already excited.

“100 points!”

“Sisi, why didn’t you tell me?”

“Also, you took first place in your class!!! Awesome, awesome. ”

“Great, great, Sisi, you said what you want to eat at noon today, my mother will make it.”

It seems that he doesn’t care very much about what he eats, Li Sisi said ‘yes’, and then followed Gu Bai to start this time of math tutoring.

It is still the primary school competition Olympiad test paper.

Li Sisi will do it first, and then explain when he encounters Gu Bai who can’t.

I have to say that Li Sisi’s math score has improved a lot, at least it is not as simple as the 100 points of the ordinary primary school paper exam.

A primary school Olympiad competition paper, in which only 2 questions will not be encountered.

Glancing at the topic, Gu Bai explained directly without even thinking: “This is a common engineering cooperation problem. ”

“It is known from the title that A’s work efficiency is 1/20, B’s work efficiency is 1/30, and the cooperative ergonomics of A and B are 1/20*/5+1/30*9/10=7/100, and because ‘A and B cooperate for as few days as possible’, so it should be let …”

“…. In the end, the minimum time for A and B cooperation is 10 days. ”

Quickly writing out the answer, Gu Bai habitually turned his pen and asked, “Do you understand?” ”

Gu Bai’s current teaching has comprehension +40%, memory +30%, and inference + 40% blessing, and there is no need to worry that because he speaks too quickly, Li Sisi can’t understand.

“Got it.” Li Sisi nodded in realization and said, “… In fact, it is not only engineering problems, some solution efficiency, color ball proportion is similar. ”

“Children can be taught.” Gu Bai replied lightly.

The ability to draw inferences is immediately manifested.

“Teacher Xiaobai, you are also too powerful!”

After sorting out the knowledge points in his mind, Li Sisi’s eyes widened and flashed with light, and he looked at Gu Bai with adoration and said: “Our math teachers have to think for ten minutes when encountering such a topic, you… It was solved in seconds without thinking. ”

As if feeling that being blown by a primary school student is not something worthy of honor, Gu Bai pulled away the topic and said curiously: “Which university did you math teacher graduate?” ”

“Nankai.”

？？？

Now, even elementary school teachers are so rolled?

“What’s wrong, what’s wrong?”

“No, no problem, it just feels like your math teacher is in college… Pretty good. ”

“Hehe, our Chinese teacher is better, she is from Yenching University.”

Gu Bai: “???”

Volumes, crazy volumes.

Tang Yan Da high-quality students, actually teach elementary school!

“Okay, go ahead and do the questions.” Gu Bai was not talking about these related things, and he received a blow in his heart.

He is an ordinary university, is he unable to live in society now?

After talking about a few more topics, the mobile phone in Gu Bai’s pocket vibrated sounded.

Getting up and coming to the balcony that led directly to the bedroom, Gu Bai looked at it curiously, it was Senior Wu Hai calling.

“Gu Bai is not good, something happened!”

As soon as the phone was connected, there was a somewhat panicked and deep voice from Senior Wu Hai.

Something happened, what happened?

However, without waiting for Gu Bai to ask clearly, Senior Wu Hai over there hung up the phone, and then a text message was sent.

“Come quickly, Lecture Hall 201.”

Looking at this text message, Gu Bai’s eyebrows jumped, and he had some bad premonitions in his heart.