It's really a question.

Wang Yufei was sitting upright in front of Guo Xiaoyi's desk with a pen, and below was a stack of manuscript paper, on which many numbers and formulas were densely written, and the precious daughters of the two were sitting on the side, with their hands on their cheeks......

When the two pushed the door in, Han Qian noticed that Guo Xiaoyi glanced sideways at the two of them, her eyes were not focused at all, and then she moved her gaze to the stack of manuscript papers again......

How so?

I've never seen my girl talk so well before.

"Well, is it okay to let Aunt Han see what you did?" Han Qian couldn't help but ask.

"Okay!" After speaking, Wang Yufei honestly handed over a stack of manuscript paper.

"Don't look at it, although I can't understand the process of solving the problem, the answers should all be correct. And I've been watching, and this guy definitely didn't copy the correct answer in the back. Guo Xiaoyi on the side said in a dreamy tone, and then suddenly looked at Guo Jianfeng behind Han Qian with a side face: "Dad, you won't tease me together, right? This guy is really a primary school student?"

Guo Jianfeng frowned and scolded: "You don't believe what Dad said? I really should let you go with me to see how the children in the mountains go to school! Your brother has been studying for four years because the family has no money, it is indeed true, if you don't believe it, I will take you to ask Uncle Liao next time!"

Guo Xiaoyi ignored Guo Jianfeng's scolding, and after listening to this explanation, she once again held her chin and looked at Wang Yufei beside her. This guy still looks calm and boring!

......

Han Qian carefully looked at the stack of manuscript paper handed over by Wang Yufei, and all the questions and solution processes were written on the manuscript paper.

The first impression she had was that the child's handwriting was very delicate and neat, and it looked very comfortable, but the problem was that she couldn't read it.

On the manuscript paper, there should be three geometry problems to complete the problem-solving process, and each of them should be very detailed, but there are some mathematical symbols Han Qian feels that she has never seen it.

Of course, this can't be blamed on Han Qian, after all, she is an English teacher in high school, and there is no shame in not knowing mathematics. After thinking about it, Han Qian simply took out her mobile phone, took a few photos of the manuscript paper carefully, and then returned a stack of manuscript paper to Wang Yufei.

"Xiaoyi, your brother Yufei has been on the road for a day today, and you have to rest early, if you have any math problems, let's ask Brother Yufei for advice tomorrow." ”

"It's okay, Aunt Han, I'm not tired, and there are only two questions left, I'll teach Xiaoqian to go to rest when I'm done." Wang Yufei shook his head and said.

Han Qian just wanted to say something, but Yu Guang saw Guo Jianfeng beside him shaking his head implicitly, and simply changed his words when the words came to his lips: "That's okay, Auntie will go and boil the water in the electric water heater first, you can take a bath after solving the problem, don't do it too late!"

"Okay, I know, just your wordy, I still have to see Wang Yufei solve the problem!" Guo Xiaoyi on the side couldn't help but say, she didn't call Wang Yufei that guy anymore, but she didn't call her brother either, no matter what, it was a good development after all.

......

As soon as she walked out of the room, Han Qian sent the photo she had just taken to the math teacher of her grade group on WeChat, Han Qian couldn't understand it, but the old Han Ke who taught mathematics in the key class of the grade she took was an old teacher. He is also the subject teaching team leader of the school's mathematics group, with rich experience and solid theoretical foundation.

A few years ago, the school spent a lot of money to poach this teacher Han from an international famous school in Mingzhu, and it didn't mean anything else to send the questions done by Wang Yufei, Han Qian just wanted to know what the little guy's math level was.

I only went to the fourth grade of primary school, and I spent an hour reading the textbooks of the third year of junior high school, and then I started to do the math problems of the third grade of junior high school...... It's hard to believe.

Especially a senior teacher like Han Qian.

Genius teenagers have also seen a lot in her teaching career, but the so-called genius still needs time to learn, understand, and master knowledge after all. And it only takes an hour...... That's not a genius, that's a demon.

"This kid ......" Han Qian looked at Guo Jianfeng, not in front of the child, there was no need to hide her surprise.

Guo Jianfeng shrugged his shoulders, and he was also puzzled: "Say, this kid is quite spiritual, and he can solve the primary school Olympiad problems." ”

"But ......"

"The news was sent to Lao Han just now, right? Let's see what Lao Han has to say. Guo Jianfeng interrupted Han Qian's words.

The atmosphere in the couple's room, which sat down on the sofa again, was a little weird, until a message came from Han Qian's mobile phone.

"Teacher Han, what's the situation? Have you enrolled Xiaoyi in the Olympiad class? Have you started to learn calculus?"

"Calculus?"

"Yes, the first three-dimensional geometry problem is solved in both ways, the first solution uses elementary mathematical knowledge, needless to say, but the second solution uses the basic knowledge and basic solution of calculus in advanced mathematics, the most commendable thing is that in the process of solving the problem, the deduction process of calculus formulas is also listed in detail, Xiaoyi has learned well, this is a complete understanding of these knowledge! Which class are you applying for? I remember that Xiaoyi has always been weak in mathematics before, right?"

Han Qian was looking at her phone in a daze, and another message was sent.

"Hey, the third problem actually uses the idea of solving complex variable functions, what kind of tutorial class is this? Teaching children such esoteric things? This is a difficult difficulty to grasp in the advanced mathematics taught in the university! Wait, these problems can't be done by your family Xiaoyi, right? Are you helping the child hire a tutor to test his level?"

"Teacher Han, if I tell you that the solution ideas I sent were not written by my family Xiaoyi, but by a fourth-grade elementary school student who solved the problem after reading Xiaoyi's junior high school textbook for an hour, would you believe it? No kidding, I'm serious. ”

WeChat didn't reply for a long time, about two minutes later, in Han Qian's impression, the old Han, who has always been very old-fashioned and serious, actually posted a particularly popular emoji on the Internet for the first time, the picture is a panda head with a confused expression, and three big words in the book: "You tease me?"

Han Qian was stunned for a moment, did not reply to the message, but threw the phone to Guo Jianfeng, who was frowning and thinking about it.

Glancing at the chat history of WeChat, Guo Jianfeng suddenly said, "This kid ...... I'm afraid he's really a genius who was almost buried, right?!"

"Genius?" Han Qian was stunned, and was also a little dazed.