"Recently, I've bought a lot of new comics, many of which are funny comics with novel themes, and I opened a new comic called "Poor Father and Daughter" before I went to bed last night, and I burst into tears when I laughed."

Xi Yusheng took out a stack of comic books with exquisite painting style from his backpack, and introduced to Nan Zuishi Sheng with great interest: "There is also this one, which was finished a long time ago. ”

Nan Zuisheng took a comic book she handed over, and looked at the cover as if it was ...... A dog?

And the name of the comic is also called a dog, which looks quite interesting.

"Why don't you two go out and play, the weather is super nice today." Chang Xiao walked in from outside the classroom with a bag of ice cream in his hand: "Well, I just went to the school supermarket, and everyone eats together." ”

Xi Yusheng untied the single-button bow on the bag and took out a chocolate ice cream-style ice cream: "By the way, Sister Changxiao, you can sit down and read comics with us." ”

Chang Xiao glanced at the stacks of comic books on the desk, and his eyes swept casually from a dog on the cover and a man holding a child: "It's all things that coax children to read, so I don't read them." ”

She raised the ice cream wrapper in her hand, aimed at the trash can by the window of the classroom, and threw it into it accurately.

A group of boys who were coming back from the playground were holding basketballs, and as soon as they stepped into the back door of the classroom, they saw an unknown object pass in front of them, leaving a perfect parabola in mid-air, and then landing accurately in the trash can.

"Would you like to join our basketball team?" A boy at the head looked at Chang Xiao, his eyes burning: "With you as a general, we don't have to worry about being KO in the future class VS." ”

Chang Xiao raised his hand and shook it a few times, and said impatiently: "Go aside, my sister is not free." ”

Playing basketball, which is an unchallenging sport for her, is why she disdains to participate in it, or the high-intensity training programs in the barracks that she is more interested in: "There is another thing I almost forgot to tell you, drunk." ”

Turning his head to look at Nan Zuisheng who was flipping through comic books, Chang Xiao took out a dress gift box from the desk: "You forgot to take the long skirt away when we parted yesterday, and I brought it back to you this morning." ”

Taking the somewhat heavy delicate gift box, Nan Zuisheng lowered his eyes and looked at the rose vine depicted on it: "No wonder after I got home yesterday, I always felt that I forgot something, but fortunately, you helped me think about it." She put away the gift box and smiled, "Thank you." ”

"It's okay, you have to work hard for the host contest." Chang Xiao's eyes are full of smiles, and her neat high ponytail reflects her beautiful appearance, which looks like a breeze on her face, giving people a feeling of refreshment.

"I'll do my best to live up to expectations." Nan Zuishengxiu's narrow and slender fingers gently stroked the delicate and smooth comic book pages, and Shu Mei also smiled lightly.

Xi Yusheng took out a tissue to wipe the corners of his mouth, and handed the remaining wrapping paper in his hand to Chang Xiao beside him, who took it and threw it into the trash can tacitly, and clapped his hands cleanly at the end: "What's wrong with the two of them today?" ”

looked at Dong Mengsheng beside him suspiciously, and Bei Langsheng on the left side of the back table: "I have been sleeping since I came to school in the morning, and the angry Teacher Qin glared at the two of them several times. ”

"I guess I've been playing games all night." Chang Xiao glanced at the two people who were sleeping soundly on the table: "When I quit the online game last night, I saw that the two of them were still working together to brush copies. ”

Xi Yusheng nodded clearly: "I see." ”

After the class bell rang, she and Nan Zuisheng hurriedly put away the comic book on the table, this class is a math class, and the male teacher who teaches math is notoriously strict in the first year of high school.

Especially after teaching the knowledge points of each class, in order to prevent some students from slipping away from listening to the lecture, he will take turns to ask questions from the first row by the window, and the punishment for not answering them is to make a math paper.

At the thought of adding an extra math paper after the heavy homework every day, none of the students dared to slack off.

Mathematics papers are the most time-sparing, often a few questions in the past just check and apply formulas, it will take a long time, and there are other subjects left over from the homework, miscellaneous together, after writing it is dark, even if you want to go out to play, most parents will not agree.

"Class." The math teacher walked into the classroom with vigorous steps and placed several teaching courseware under his arm on the podium: "Hello teacher. The students stood up and shouted in unison.

"Hello everyone, please be seated." After motioning for the students to sit down, he picked up the chalk, opened the lesson plan and wrote a detailed analysis on the blackboard: "Today we are going to talk about functions, first of all, what is a function......

The math teacher is a middle-aged man with a dignified appearance, full of rigorous and calm academic atmosphere, which is very similar to Dong Mengsheng's temperament, the two also belong to the type of talent that looks like a talent after wearing glasses, and they are also less calm and calm, but they are very wise and sven inside.

"Dong Mengsheng." The math teacher turned around and frowned at Dong Mengsheng, who was sleeping on the table, for himself, a carefully selected math class representative who was relieved to be entrusted with important responsibilities, at this moment, the other party did not respect discipline and despised the teacher's behavior made him feel distressed: "Stand up!" ”

Before Xi Yusheng stretched out his hand and poked him twice, Dong Mengsheng stood up unhurriedly, picked up the glasses on the table, and put them on elegantly: "Teacher, you call me." ”

His salty tone was undoubtedly adding fuel to the fire in the ears of the math teacher at this moment: "As a class representative, I took the lead in sleeping during class time, knowing the law and breaking the law, so I can stand and listen to this lesson well!" ”

"And the girl behind you, sitting by the window in the second row, called him up too!" He angrily picked up the whip and slapped the edge of the podium twice.

Hearing this, Nan Zuisheng stretched out his hand and shook the sleeping Bei Langsheng, and the other party slowly opened his eyes and looked at her with a little blankness: "Is class over?" ”

The sound fell on the silent classroom at this moment, and the students were stunned for a moment, and then burst into amazing laughter.

The math teacher had a calm face, and his face was clouded: "It's class!" ”

He stepped down from the podium and came to Bei Langsheng's side, and knocked on the table a few times with the whip: "Look, you're all asleep, did you go to play games last night or read novels all night?" ”

Bei Langsheng consciously stood up in front of everyone, and raised his eyebrows indifferently: "Report to the teacher, I played games all night last night, so I didn't sleep well." ”

Speaking of this, he paused, glanced at Dong Mengsheng in front of him with a smile, and was keenly aware of the ill-intentioned gaze behind him, Dong Mengsheng instantly had a bad premonition: "And I formed a copy with the class representative, so I am extra sleepy today." ”

The math teacher was furious when he heard this, stretched out his whip and pointed at Dong Mengsheng in front of him: "Okay, you two, you guys are so high-sounding when you play games all night." ”

He snorted coldly and stood on the podium again, and a sharp light instantly crossed the edge of his glasses: "I asked you two some questions, and whoever answered the right one sat down first." ”

The math teacher flipped through the lesson plan spread out on the podium, deliberately picked out a few math knowledge points that had not yet been taught, and asked, "What is a function first?" Dong Mengsheng replied. ”

"A function, one of two quantities that are related to each other, means that there are two numbers or events that are related to each other, and when one changes, the other follows." Dong Mengsheng stood in his seat and said calmly.

His answers were not only concise and easy to understand, but also easily summarized the main points in one sentence in a relaxed and orderly manner.

The students in the class looked at the class leader on the side of the podium with admiration, and they were admitted to this school with the first place in Xuan City.

The math teacher nodded, then asked, "So what is a quadratic function?" Bei Langsheng replied. ”

"A quadratic function is a quadratic polynomial or mononomial whose basic representation is y=ax²+bx+c, where a≠0. The quadratic function must be quadratic at its highest order, and the image of the quadratic function is a parabola with the axis of symmetry parallel to or coincident with the y-axis. ”