"Hey! Come and take a look, I found a big thing! Hurry up! ”

"What's the matter, Xiao Liu, what can make you so alarmed? What's the big deal? A middle-aged man walked over.

"Come on, director, look at this question, it's very puzzling!" This Xiao Liu is naturally the mathematics teacher of Lingyun and their Olympiad class, and she returned to the office with the solution steps given to her by Chu Ailin and began to study, at first she also followed the idea of this problem to deduce, but she deviated from the original idea after calculating, but after seeing the solution of this problem, there seemed to be some ideas, but no matter how it was calculated, in the end it was different from the result of this problem, and Teacher Liu originally planned to decompose this idea and study it step by step, but she found that this problem could not be disassembled at all, that is to say, there was no way to start. But it is not a way to face a question with a sad face, as the so-called many people are powerful, and a few more people may brainstorm to solve it. This is not just shouting and shouting, saying that he has discovered something big. "I've discovered a new solution to a function. I just don't know if it's correct, I think about beckoning everyone to come and take a look, there is a lot of power in people! There is always a limit to the power of a person. Teacher Liu laughed dryly.

"Oh! Is there a new solution that can make it difficult for you, a top student? You know you're the most educated of us! If you don't, come to us, isn't it embarrassing for us! "The director didn't make fun of Mr. Liu, what he said was also the truth, Mr. Liu is indeed the highest education in the mathematics group, but he has just been transferred in for more than two years, and he is a newcomer, and Mr. Liu is not old-fashioned, she is just twenty-eight years old this year, probably because Mr. Liu is young! There is not much generation gap with students, and the academic qualifications are the highest, so the school sent Mr. Liu to the Olympiad class as a freshman teacher. For this approach, no one in the math group objected, on the contrary, everyone was very supportive, because she was a newcomer, so everyone still took care of her, and the math group called her Xiao Liu. It's also a good relationship.

"Cut, director, I don't like to hear you say that, how I have a high degree is just on paper, after all, the teaching experience is not as much as yours! You are all seniors, I can't ask you questions~ If you don't want to tell me, forget it! Hum. Teacher Liu pretended to be angry and snorted, and then stopped talking.

"You girl, we didn't say anything, we just envy! Envy is not allowed! "The director can't help it. In this office, Mr. Liu is a treasure! This teaching director is nothing, just a nominal one.

"Hehe, that's it, Mr. Liu, if you have something, can we help! Let's say, what kind of question, let's take a good look. A math teacher came over and said to Mr. Liu.

"Well, Mr. Zhang, look at this question, I haven't understood it for a long time." As he spoke, Mr. Liu handed the booklet to Mr. Zhang, and then he studied the copy of his own hand-copied copy in the book.

"Well, I'll take a look." After taking the booklet, Mr. Zhang didn't speak, found a seat and sat down, read the question again, and then performed it on the straw paper, Mr. Zhang calculated all the methods of this question, and then compared it with the method on the booklet, he also found that the ideas on the booklet can be said to be unheard of, and the steps made by Mr. Zhang himself are completely different, looking, Mr. Zhang frowned, with a puzzled face. Seeing that Mr. Zhang didn't have a voice, the director didn't talk or laugh but walked over and quietly looked at the question, and when he saw this step, he was surprised, "Ah, how is it possible!" ”

"Director, what's wrong, what's possible?" Seeing the director's shocked look, Teacher Xiao Liu got up and walked over, could it be that he had found a breakthrough? Teacher Xiao Liu thought in his heart, but he didn't dare to slack off.

"It shouldn't be! What's going on? Xiao Liu, come and tell me. At this time, the director no longer cares about whether men and women are intimate or not. grabbed Xiao Liu's shoulders directly and shook them, and at this time, Teacher Zhang also noticed the director's gaffe, "Ahem, director, you let go of Xiao Liu first and let her speak slowly, I also think this question is strange." Hearing Mr. Zhang's words, the director also realized his excesses. I'm sorry, Xiao Liu, I was so excited just now. ”

"Oh, it's okay." Teacher Xiao Liu should respond. She also felt that the director's behavior was too exciting. It seems that there is an idea for this question.

"Xiao Liu, can you tell me who made this question?" The director reorganized his emotions and said slowly.

"Oh, you ask this, you don't say I forgot, this is the leader of my class made it. She also asked me if it was the right thing to do. I knew it would be so difficult, so I called her at the time. "Teacher Liu was so obsessed just now that he forgot to ask the students. Hearing what the director said, Mr. Liu suddenly remembered this incident.

"Yes, that's right, hurry up, Teacher Liu, hurry up and call her over, I want to see him." The dean said with some excitement.

"It's okay to call, so can the director tell us about this first." Teacher Xiao Liu is still more concerned about this question. In the past, Mr. Xiao Liu even thought that this was a fake idea, thinking that this was a step for students to deal with their own blind writing, and originally thought that if others did not know, forget it, so he judged that this question was wrong, and did not study it. But hearing what the teaching director said, Teacher Xiao Liu also felt a little unusual, fortunately he didn't skip this question just now, otherwise he would have lost an experience.

"Teacher Xiao Liu, I won't tell you, this question is definitely a strange news, this idea has been lost now, you may find it a little difficult to accept it, but this is a fact, my ancestors are authoritative figures in the field of mathematics. He once made a great contribution to the mathematical community, and of course this problem was also lost after him. The Dean of Education told his story in righteous words.

"Ah, it turns out that your ancestor was a math maniac, so how can it be lost?" Teacher Xiao Liu asked suspiciously.

Hearing this, the teaching director was obviously a little embarrassed, "Ahem, I'm just a little ignorant and unskilled, and a lot of mathematical knowledge has been forgotten by me, but the impression is still a little." ”

"Oh, then I know, I'll notify my squad leader to come over in a while." Teacher Xiao Liu agreed.

"Well, well, I'll have to see this kid after class in a while, the knowledge that has not been taught in school can be made, it's really amazing" The teaching director said ashamedly: "Hey, if I didn't learn and didn't know how to learn, I wouldn't be a teacher here now, and this kind of question will come easily." But now, my father is gone, otherwise I could have learned a lot. ”

Teacher Liu and Teacher Zhang listened silently on the side, feeling that they didn't speak. …… It turns out that the director of education has such a big background. No one in the school knew about it, but it was a shame now. Originally, I forgot my best skills, and I was reminded of a sad past by a student......