Do you understand Euclid today?

Lin Qianshu was in a daze.

He didn't know why, he just squinted on the playground for a while, and when he opened his eyes again, the basketball hoop in front of him changed from blue to green.

There are only two explanations for this situation: [-]. There is something wrong with his eyes; [-]. There is something wrong with the world.

He looked down at the clothes on his body. The sweater and sneakers were his favorite style.Good-looking is very good-looking, but not good is not good because it is not the outfit I wore when I went out today.

Could it be that he sleepwalked and picked up other people's clothes and also painted the basketball hoop by the way?Lin Qianshu was a little skeptical about life, but he couldn't find any other better explanation.

While thinking, he heard a "buzzing" sound from the radio, and then the bell rang for the end of the lunch break.

If I stay any longer, I'm afraid I won't be able to enter the classroom before the class bell rings.Lin Qianshu didn't care about thinking, so he hurriedly left the playground and ran towards the teaching building.

He followed a group of boys and ran into the corridor. He saw the shoelaces of the boy who ran last were untied, so he kindly patted the boy on the shoulder, intending to tell him to tie his shoelaces.As a result, the boy turned his head, and the moment his eyes touched Lin Qianshu, he became terrified and yelled "I'll go", and immediately spread his legs and caught up with his companions at an even faster speed.

Are you sleeping like a zombie?Why did that boy run away?Looking at the back of the boy going away, Lin Qianshu's hands froze in mid-air, feeling that his whole body was messed up in the wind.He couldn't help slowing down his pace, touching his face thoughtfully as he walked.It's a pity that there are no mirrors around the corridor, and he doesn't know what it is that makes the boy so frightened.

Just as he was thinking, another boy quickly overtook Lin Qianshu and walked forward.The boy was wearing the uniform of Nanhuai Experimental High School, which Lin Qianshu was very familiar with, and a pair of blue-rimmed glasses that were more common among elementary school students, which made Lin Qianshu pay more attention to him.

Probably because Lin Qianshu's eyes were too fierce, the boy didn't take a few steps forward, then turned back again, this time he finally raised his head and saw Lin Qianshu.

The boy adjusted his glasses, put down his hand suddenly, and bowed to Lin Qianshu: "Hello, Teacher Lin."

Lin what?What teacher?Lin Qianshu was taken aback, thinking that he probably met someone with worse eyesight than himself."What did you call me?" he asked.

Hearing Lin Qianshu's question, a trace of doubt flashed in the boy's eyes: "Mr. Lin..." He called again, swallowed nervously, and asked cautiously, "Yes, is there any question?"

Lin Qianshu was all too familiar with the boy's hesitant to speak expression between trembling and not trembling - he also met the dean when he was in elementary school.He couldn't help but think back to the boy he just met at the west end of the corridor.With the combination of the two, Lin Qianshu finally realized that he might have really become the teacher Lin that the boys said.

I am still myself, Nanshigao is still Nanshigao.It's just that my identity has changed from a student to a teacher.So, I have time-traveled?

As a good contemporary young man who has read a lot of books, Lin Qianshu quickly calmed down, and he said to the boy with a calm and calm attitude: "No, I just wanted to test your basic etiquette when meeting a teacher. Now please listen to the first The second question—”

The boy quickly rested and stood at attention, his back straight like a young white poplar.

"How many years is it now?"

The boy was respectful, and the loud voice echoed in the corridor, which could not dissipate for a long time: "Mr. Lin, this year is [-]."

Lin Qianshu, a high school student who lived in 2013 half an hour ago, was silent.

So I have traveled to seven years later?Lin Qianshu took a deep breath and let it out slowly.His face remained calm, but his brain was running fast - he traveled to the playground of Nanhuai Experimental High School seven years later, and the students passing by called him "Ms. Lin", which means that seven years later, he was finishing college Afterwards, he returned to Nanshigao to teach.

This feeling is simply... nice!What could be better than getting a college diploma without going through the college entrance examination?Lin Qianshu suppressed his excitement, muttered "Very good", and said to the boy, "Very good, you passed the teacher's quiz. Now come with me to my office to receive the reward!"

A trace of excitement flashed across the boy's eyes. He squeezed his fist and stammered his thanks to Lin Qianshu: "Thank you, thank you Teacher Lin."

"You're welcome, the motherland needs a sensible flower like you." Lin Qianshu has quickly adapted to his new identity, walked up to the boy, patted him on the shoulder with a smile, "Come on, you go ahead, the teacher will follow You go slowly."

The boy was deceived by Lin Qianshu's superb acting skills, and took the initiative to walk in front of Lin Qianshu, leading him all the way up.

On the way, Lin Qianshu didn't forget to find the boy to talk to him every now and then - from the conversation just now, Lin Qianshu could already see that this boy seemed a little stupid, and he didn't have the consciousness of being stereotyped at all.Sure enough, in just a few minutes, Lin Qianshu got to know a completely different version of himself from the boy.

23-year-old Lin Qianshu is an intern teacher at Nanhuai Experimental High School. He is currently serving as a tutor for the first grade of the mathematics competition team.

To Lin Qianshu's surprise, this boy with blue glasses named Guan Ming was actually a member of the math competition team.His not-so-intelligent appearance made Lin Qianshu very worried about the educational development of his alma mater in recent years.

However, since in the world seven years later, a person like myself who has raised his mathematics interest by [-] points can be a mathematics teacher, so what is impossible?Lin Qianshu licked his front teeth when he thought that he had even avoided the college entrance examination and college thesis, and couldn't help but the corners of his mouth twitched wildly.

"Teacher, we're here." Guan Ming led Lin Qianshu to the door of the office on the top floor of the teaching building that said "Mathematics Competition Group". The next second, the bell for the lunch class rang.

"Okay, you go to class first." Lin Qianshu pushed the door open, remembering what he promised him before asking the boy to bring him, he raised his hand and said, "Ask the teacher to get the prize after class is over." He felt that he needed it Take a little time to digest the facts of time travel, and by the way, touch yourself in various situations seven years later.

A trace of surprise flashed across Guan Ming's eyes, but he still walked away step by step.

Lin Qianshu held the doorknob and turned it gently, and the interior of the math competition office came into view.

This is an extremely clean and tidy office. There are two desks placed one behind the other in the small room. The desks are all blocked by the table boards. The other owner of the office is not inside.Lin Qianshu paced into the door, walked between two tables, and looked back and forth between the items displayed on the two tables.

The items on the table next to the door were arranged in an orderly manner, but there were strings of post-it notes on the table. It seemed that the owner of the table was a very busy person.The top of the table by the window looked a little messy, with a half-made roll spread out on it, and a mug with coffee residue on it beside it.

Lin Qianshu looked back and forth, and finally found a notebook with his name on the table by the window.So he went to the desk, pulled out the chair and sat down.

The office chair is the kind with a round bottom and armrests that can be rotated 360 degrees. The first thing Lin Qianshu did when he sat down was to hold the armrests and make a big circle.

He wanted to cheer, he wanted to applaud, he wanted to pop a bottle of champagne to celebrate.Due to being in school, he still only dared to secretly make himself happy.

After resting for a while, Lin Qianshu had basically rummaged through everything on his desk.At this moment, he was holding the mobile phone that he had taken out of the drawer in his hand.This mobile phone looks roughly the same as the one he owned before, except that the screen looks a lot bigger, and there is no button on the entire surface. It looks like an enlarged MP4.

He didn't know where he touched it, the screen suddenly lit up, and instantly jumped to the interface for entering the password.Before he could figure out what password he would use seven years later, the lock on the interface suddenly showed that he was unlocked, and the six spaces were replaced by six dots representing the password number, and the lock was unlocked inexplicably.

Lin Qianshu was so startled that he almost threw the phone out.

Is this how you unlock your phone seven years later?He held the phone cautiously and didn't dare to move, he could only watch helplessly as the lit screen went dark again.

"Lin Qianshu, why are you still sitting here?"

Just when Lin Qianshu didn't know what to do next, the door was opened from the outside.He looked up, only to see a familiar figure appearing at the door.

The person who came was Yan Kaiyue, the class teacher who complained about his messy math homework in the morning.

Conditional reflex made Lin Qianshu bounce off the chair, and blurted out "Teacher Yan".

Seeing that Lin Qianshu was still standing stupidly by his desk, Yan Kaiyue couldn't help frowning: "The exam is about to start, why are you still sitting here?"

Lin Qianshu was stunned: "What exam?"

"Mathematics monthly exam." Yan Kaiyue simply walked in to pull people, and he didn't forget to scold Lin Qianshu, "Didn't I tell you on the first day of work that all new teachers have to participate in teaching with the third year of high school?" Subject test? You won't forget it, will you?"

There is such a rule?Lin Qianshu's eyes darkened, and he felt an urge to run away.He forced a smile at Yan Kaiyue, and stammered, "D-of course I didn't forget."

"It's fine if you don't forget, then hurry up and follow me, the exam is going to be too late. When you were your homeroom teacher, you had to worry about your being late and leaving early. Now that you are teaching, you still have to worry about you being late and leaving early. I don't know if I owe you in my previous life... "Yan Kai breathed a sigh of relief, and pushed Lin Qianshu out of the office door. Lin Qianshu only had time to put his phone into his trouser pocket.

Yan Kaiyue escorted Lin Qianshu all the way to the entrance of examination room No. 1. Lin Qianshu could feel the appraising eyes cast from other examination rooms as he walked through the corridor.

"Okay, let's go to the exam quickly." When he arrived at the entrance of the No. 1 exam room, the expression on Yan Kaiyue's face had become very kind. He patted Lin Qianshu's shoulder with a smile, and he didn't even forget to encourage him: " Come on, look after you."

Come on, the self who time-traveled hasn't even finished the first grade of high school.Lin Qianshu showed a smile uglier than crying, and finally bit the bullet and stepped into the examination room under Yan Kaiyue's attentive gaze.

The author has something to say: Happy Children's Day!

Someone came back when I was writing honestly.

Probably also from the Nanshigao series. The setting is that Zhishu’s husband and wife are four grades higher than the two of them. The teaching director here, Yan Kaiyue, is the Kaiyue of Gudebai’s game ID "Kaiyue My Son" 2333 Didn’t see it Having read "Lolita" does not affect those who read this book~ Children's shoes who have read it should find some small easter eggs.

Summer is a season suitable for Xiaotianwen, thank you friends who have always supported me, I love you Mua

The first [-] words will be updated every day, how to update after that, please refer to the data of this book and my saved manuscripts, but I believe everyone will love me hehe.

As usual, send red envelopes when you open an article, and send red envelopes in the comment area at the bottom of this chapter, until I send Chapter 2 tomorrow~