After class in the afternoon, after studying in the classroom for a while, Wang Yufei followed Guo Xiaoyi to the electronic classroom in the high school department of the school.

The electronic classroom built by No. 1 Middle School in the Provincial Capital has a very high specifications. The podium is located at a very large projection screen, and the tablet placed on each seat can be randomly projected onto the screen through the main control computer.

In addition to the projection function, you only need to press the buttons. The specialized one can only be lowered by an electronic blackboard, and the projection screen will be reduced to about half of the position, which is very convenient.

Even with the financial resources of No. 1 Middle School in the provincial capital, the high school department currently has only this electronic classroom, which is generally only used during open classes. The camera layout without blind spots in the classroom can provide enough materials for perfect restoration of open class videos.

Wang Yufei brought Guo Xiaoyi to the classroom ten minutes in advance as Han Wenle's request, but when the two of them arrived, the classroom was almost full.

The two of them didn't know that they arrived ten minutes in advance, but other students and parents of the Mathematical Olympiad class were asked to arrive in class half an hour in advance.

To ensure that the class starts on time, you must first arrange seats for parents who are attending the class and observing the class. More importantly, Han Wenle must collect all the problems selected by the students, and then select the most representative and recognized most difficult questions from them.

There are 28 students in the Mathematical Olympiad class in the high school department, and there are 28 questions per person per question. Of course, the collected questions may have type of repetition, but even so, there are twenty questions.

Han Wenle chose the most direct way to choose topics, referendum.

Everyone uses a tablet to shoot the questions they choose and project them onto the public screen. Students who think it is difficult enough will raise their hands to vote. Finally, they will pick out the six questions with the largest number of votes.

If the type is repeated, the question with slightly lower votes will be replaced.

This rule perfectly avoids the loopholes in missing questions in advance. The questions are chosen by students, and the difficulty of the questions is chosen by the children in the Mathematical Olympiad class.

When choosing the topic, Wang Yufei was not there. Who would dare to say that Han Wenchang cheated?

For the children in the Mathematical Olympiad class, they didn’t know why Lao Han made a fuss. After all, this open class came too suddenly, and the way they asked them to choose topics by themselves was obviously a bit joking.

Most Olympiad mathematics questions are difficult!

More than twenty difficult problems!

Even if you only choose six difficult questions in the end, it will be difficult to finish one class!

According to the previous efficiency, it is already very efficient to solve three questions in a class of 50 minutes. Although the top mathematics students in each high school class can only be admitted, there is a difference in the understanding ability of math masters in mathematics, right?

Of course, some people also suspect that today's open class may be related to the post bar incident that spread throughout high school last night, but they didn't believe it. Wang Yufei could solve six questions in one class! There is no time limit for the official Olympiad competition.

Not to mention ordinary students, even Han Wenle, who was already full of confidence, began to feel excited after reading the questions chosen by his students in these seats.

Damn, these little bastards can't do anything to solve problems, and they're so energetic to pick some difficult questions! They are quite good at finding them! Point set topology, real variable functions, common differential, partial differential equations, spatial geometry analysis, differential geometry...

The questions chosen this cover almost all areas of mathematics, and they are all that difficult...

Not to mention Wang Yufei, Han Wenle felt that even he was afraid that he would not be able to solve these six problems within half an hour.

Mathematics has always been a very wonderful subject. Those who can learn well can really learn to the extreme, and those who don’t know what they are really not knowing!

Therefore, math scores are always easy to go to extremes. In parallel classes, the highest scores obtained by subtracting the lowest score can be inserted into the whole grade of politics and history, such as liberal arts subjects.

But solving math problems requires a thinking process...

The more difficult math problems are, the more knowledge points you can accommodate. You often need to turn several consecutive turns to finally solve or prove successful, not to mention that they also contain extremely complex calculations...

Yes, when he saw the final selection of the six questions, Han Wenle's confidence was shaken. He seemed to have dug a big hole for himself and Wang Yufei...

It happened that Wang Yufei and Guo Xiaoyi walked into the classroom.

However, before he could express his feelings to Wang Yufei, the young man called out to him respectfully and began to search in the classroom. Then his eyes lit up and he walked towards Lu Yuxin's position with the girl in the Guo family beside him.

So the feeling of guilt that had just risen in Han Wenle's heart immediately disappeared.

Well, you are so arrogant that you deserve to be unable to finish the questions!

Anyway, for Han Wenle, as long as Wang Yufei can solve one question in these six questions, it is enough to prove his level! You should know that the final six questions were all selected by 27 votes, and the reason why one vote was missing was of course because Lu Yuxin never raised her hand.

In other words, except Lu Yuxin, no one else in the class will do these six questions!

So for Han Wenle, Wang Yufei only needs to solve one problem within half an hour, which is enough for him to get angry. As for Wang Yufei’s bet with Yu Dewei…

If you don’t respect teachers and value education, you only have your own little girlfriend in your eyes. You deserve to be caught as a typical example!

As for whether to remember the demerits or review them in front of the whole school, it doesn’t matter to him as a math teacher. Anyway, the school will definitely not be willing to throw two little geniuses out of the school because of a premature love, that’s enough!

Han Wenle looked at the time, well, there are still ten minutes to start the class, so let the young couple say a few words...

...

"This is my sister, Xiaoyi, this is Lu Yuxin." Walking to the girl, Wang Yufei ignored the countless curious gazes behind and introduced directly.

"We've seen it!" Guo Xiaoyi said with a pout.

Lu Yuxin smiled slightly, nodded and said, "Yes, I saw it at noon today. You are Wang Yufei's sister, and you will be my sister in the future. If you have anything to do, you won't be able to solve it. I don't want to tell my family that you can come to me!"

"Really?!" Guo Xiaoyi was a little excited. She didn't expect that the legendary woman in the school would express her affection for her for the first time when she met.

"Of course it's true! There's a seat next to me, so just sit next to me!" After saying that, Lu Yuxin pointed to the seat next to her.

Wang Yufei was stunned. According to the principle, he should sit at that position. Guo Xiaoyi's position should be at the back of the classroom, sitting with the parents listening to him, so he naturally asked: "Then where should I do?"

"You are the one who is going to do the test later, why are you sitting? I am you, so hurry up and take a look at those test questions. I'm still waiting for you to finish them all, and then treat me to a meal!" Lu Yuxin said with a blank look on Wang Yufei.
Chapter completed!