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

The e-classroom built at a cost of one million yuan in the provincial city No. 1 Middle School is of very high standard, and the podium is located on a huge projection screen, which can be randomly projected onto the screen by the tablet computer placed on each seat.

In addition to the projection function, only a simple button operation is required, and the special electronic blackboard can be lowered, and the projection screen will be synchronously reduced to about half of the position, which is very convenient.

Even with the financial resources of the provincial city No. 1 Middle School, there is only one electronic classroom in the current high school, and it is generally only used in open classes. The camera arrangement without dead angles in the classroom can provide enough material for the perfect restoration of open class videos.

Wang Yufei took Guo Xiaoyi to the classroom ten minutes in advance according to Han Wenle's request, but when the two came to the classroom, the classroom was almost full.

Unbeknownst to the two, they arrived 10 minutes early, but the other students and parents in the Olympiad class were asked to arrive half an hour early.

In order to ensure that the class starts on time, it is necessary to arrange seats for the parents who are listening to the class, and more importantly, Han Wenle has to collect all the difficult problems selected by the students, and then pick out the most representative and recognized most difficult questions.

There are a total of 28 people in the Olympiad class in the high school, and there are 28 questions per person, of course, there may be repeated types of questions collected, but even then there are about 20 questions.

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

Everyone took pictures of their chosen questions on a tablet and projected them onto the public screen, and students who thought it was difficult enough raised their hands to vote. Finally, the six questions with the most votes were selected.

If the type is repeated, the question with a slightly lower number of votes will be filled in advance.

This rule perfectly circumvents the loophole of missing questions in advance, the questions are all chosen by the students, and the difficulty of the questions is selected by the children in the Olympiad class.

When the topic was selected, Wang Yufei was not at the scene, so who would dare to say that he Han Wenchang cheated?

For the children in the Olympiad class, they still don't know why Lao Han made this scene. After all, the public class came too suddenly, and the way they were asked to choose their own topics was obviously a bit of a joke.

Most of the math Olympiad questions are difficult!

More than 20 problems!

Even if only six questions are selected in the end, it will be difficult to finish a single lesson!

According to the previous efficiency, it is already very efficient to solve three questions in 50 minutes in a class. Although the Olympiad class has been advanced by the top math students in all classes of high school, there is also a difference in the comprehension ability of math masters, isn't it?

Of course, some people suspect that today's public class may be related to the Tieba incident that spread throughout the high school last night, but they didn't believe that Wang Yufei could solve six problems in one class!

Not to mention ordinary classmates, even Han Wenle, who was originally full of confidence, began to drum in his heart after watching the questions chosen by his students in this group of seats.

Nima, these little rabbits are so energetic to solve problems, let them pick some difficult problems! They are quite discerning! Point set topology, real variable functions, ordinary differential, partial differential equations, spatial geometry analysis, differential geometry, ......

The topics picked cover almost all areas of mathematics, and they are all the kind of difficult ones......

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

Mathematics has always been a very wonderful subject, those who can learn well can really learn the extreme, and those who don't open their minds are really not enlightened!

Therefore, math scores have always been prone to extremes, and the score obtained by subtracting the lowest score from the highest score in mathematics in parallel classes can be crammed into the highest score of liberal arts subjects such as politics and history in the whole grade in minutes.

But solving math problems requires a thought process......

The more difficult the math problem, the more knowledge points it contains, and it often takes several turns in a row to finally solve or prove successfully, not to mention the extremely complex amount of calculations involved......

Yes, the moment he saw that the six questions were finally selected, Han Wenle's confidence was shaken, and he seemed to have dug a big hole for himself and Wang Yufei......

At this time, Wang Yufei and Guo Xiaoyi walked into the classroom.

However, before he could say anything to Wang Yufei, after the young man shouted at him respectfully, he began to search in the classroom, and then his eyes lit up, and he walked towards Lu Yuxin's location with the female doll of the Guo family beside him.

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

Well, if you don't have a teacher, you deserve to be unable to finish the question!

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

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

So for Han Wenle, Wang Yufei only needs to solve a problem within half an hour, which is enough for him to go crazy, as for Wang Yufei's bet with Yu Dewei......

If you don't respect teachers and teach, you only have your little girlfriend in your eyes, and you deserve to be arrested as a typical example!

As for whether it will be a demerit or a review in front of the whole school, it is none of his business as a math teacher. Anyway, the school is absolutely reluctant to kick two little geniuses out of school just because of a puppy love, and that's enough!

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

......

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

"We've seen it!" Guo Xiaoyi pouted.

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 there is anything that can't be solved, you don't want to tell the family that you can come to me and say it!"

"Really?!" Guo Xiaoyi was a little excited, she really didn't expect that the legendary woman in the school would express her affection for her at the first official meeting.

"Of course it's true! There happens to be a seat next to me, so you can sit next to me!" After speaking, Lu Yuxin pointed to the seat next to her.

Wang Yufei was stunned, it stands to reason that he should sit in that position, and Guo Xiaoyi's position should be at the back of the classroom, sitting with the parents who were listening, so he naturally asked: "Then where do I do it?"

"Are you the one who is going to come up and do the questions, what are you still sitting on? I'm you, just hurry up and take a look at those questions, I'm still waiting for you to finish them all, and then invite me to dinner!" Lu Yuxin glanced at Wang Yufei and said.