The first part of the morning was a math class, and there were five minutes left to ring the bell.

Some students hand in their homework, copy homework, ask about the class schedule, pour water, and keep busy.

Yang Qi lay on the table with a look of disgust and said listlessly: "It's another math class, quiet, you said it would be great if someone helped me answer the questions."

"Forget it, this is just thinking about it." She sighed again.

An Jing smiled and put the math book and draft book on the table.

Mathematics Teacher Shen is an elderly man with a deep experience. He teaches in an easy-going style and doesn’t keep much homework during his daily life.

But there is only one thing, which is also the nightmare that students fear the most.

Old man Shen likes to pick people to answer questions anytime and anywhere, or ask people to write their questions on the blackboard.

If you don’t answer one question correctly, there is no problem. There is a second question waiting for you. You won’t be allowed to sit down until you know it.

And what's even more terrifying is.

This old man Shen has no rules to draw people, not according to the student number or the seat. He caught the students off guard and had no time to respond.

As the saying goes, the most invisible thing is the most hurtful.

Old man Shen did it.

The bell rang.

Old Shen had several books in his arms, wearing a pair of old gold-framed glasses, half-gray hair, and a thermos in his hand. He walked into the classroom with a hunched back while walking.

Just after the morning exercises, the students were not breathing calmly, the air in the class was a little boiling, and the noise never stopped.

The head teacher stood by the door and clapped his hands hard: "Quiet and quiet, don't talk when you are in class. Zhou Qi returns to your position."

Quiet:......

An Jing once again sighed that his name was not very good.

Old man Shen waved his hand to the head teacher with a smile.

The head teacher smiled and left the classroom.

Yang Qi sighed in a low voice: "A smile-faced tiger."

She closed her eyes, clenched her fists and kept her heart, and muttered softly: "Don't tick me, don't tick me, don't tick me."

An Jing tilted her head and looked at her deskmate's movements.

Who is she blessing?

"Save the suffering and suffering, Virgin Mary, God, God, and Bless me not to be drawn."

Wen Jing pulled the corners of her mouth.

Is this really useful?

After reviewing the content taught last week, Old Man Shen turned around and wrote two big questions on the blackboard, then looked at the classmates in the class, his eyes shuttled like radar.

When the students in the classroom arrived, most of them lowered their heads tacitly and prayed not to look at Old Man Shen with soul.

Old man Shen cleared his throat and pointed two people: "An Yue's first question, Ji Yuan's second question, come up and do it."

At this moment, An Jing seemed to hear many people breathing deeply in their hearts.

Two classmates came on stage to write the questions.

Old man Shen sat aside, drinking hot tea in small sips.

Xu Jiaye patted his chest and gasped: "It's okay, I'll escape."

Song Si bit the tip of the pen and mocked him: "As for such a terrible future?"

Xu Jiaye ignored him, leaned forward, and leaned closer to Chen Shu's ears: "Ashu, you will sit up straight later, remember to block me all."

Chen Shu tilted his head and tickled impatiently: "Please."

Xu Jiaye put his hands together, as if he was acting coquettish: "Please, please."

Zhou Qiyi was shocked and felt chill all over: "You are your own people, don't act spoiled, and say something well."

Song Si looked at the two girls on the podium with their backs facing their classmates, smashed his mouth, shook his head and sighed: "This one is front/protruding/backward, and the other is like bean sprouts that are not developed. This comparison is too obvious."

Xu Jiaye lowered his body and said with bad intentions: "Have you tried front/protruding/backward?"

Song Si thought of something, touched the tip of his nose, leaned closer and smiled, "At least it feels good to touch, I like this plump type."

He patted Chen Shu on the shoulder again to find a sense of identity: "Isn't A Shu? Don't men like to feel the touch? It's very exciting."

Chen Shuo held his chin with one hand and turned his pen boredly. After hearing this, he had no reaction on his face and his expression did not change.

Song Si looked at his cold look and whispered: "Pretend you."

Xu Jiaye pulled the corner of his clothes and pointed at the slightly shorter girl on the stage: "Hey, isn't this the one you asked someone to borrow paper in the morning?"

Song Si glanced at him.

"Yes, the one who walked with her sister turned out to be from our class, and her presence was too low." Song Si scratched her head: "Hey, what did the teacher Gang call her? How many yuan? The brothel? What's the name?"

An Yue and Ji Yuan both wrote the question in detail on the blackboard, and Old Man Shen was very satisfied.

After the explanation, I erased and rewrited two major questions.

"We'll ask for these two questions..."

Old Man Shen's tone was stretched out, and it was obvious that he was looking for someone again.

Yin Jing lowered her head, held her pen and wrote randomly on the draft paper.

There is a saying on the blackboard that she can't do.

The little eyes behind Old Man Shen's lenses were searching for prey like an eagle. The most obvious statement was among the dark heads. He leaned against the back of the chair, sat there lazy, with a leisurely expression.

"State, you will do the first question, the second question... let's state the girl in front of you to do it."

Quiet:......

Her heart was shocked, what should I do?

The second question happened to be a question that she couldn't do.

The whole class was silent.

Except for the weird whistles of a few boys in the last row.

An Jing's heart was blank at this moment and she was panicked.

She didn't get up for a long time, and the people behind her seemed to be moving.

Yang Qi made a gesture at her and whispered: "Come on."

An Jing stood up with a tough bullet and slowly moved to the stage. She pinched the white chalk and stayed on the blackboard for a while, but there was no trace left.

She glanced at Old Man Shen and sat down to have tea again.

At this time, slow footsteps came from behind, and someone stood beside her.

Chen Shuo put his pocket in one hand and pinched the chalk with the other hand and slowly wrote the formula on the blackboard. Without thinking, it seemed as if these had already entered his head.

The people around you have a clear temperament and a confident heart.

An Jing pinched the chalk in her hand. What should she do? She really couldn't do it. She could do the first few tricks, but she just slapped the one she didn't know the least.

Behind me was a quiet voice of discussion.

Quiet bit her lip, feeling the eyes behind her were completely covered with scrutiny on her.

What to do? Otherwise, I will say I won’t be able to do it and then I will stand for a class?

"Can't it?"

A low and clear voice came from the side.

An Jing was stunned and was told by someone, she was a little embarrassed and her ears were slightly red. She nodded slightly.

"Prove fx=2x    a..."

An Jing was a little confused.

Who is he talking to?

An Jing turned her head and glanced at him.

Chen Shu stared at the blackboard with his eyes focused on his eyes, writing his own problem-solving ideas slowly. His face had fair skin, his nose was tall and straight, his outline was clear and deep, and his fine hair was left in his ears.

A quiet perspective could see his wrists, with smooth lines, slender fingers, and a light blue vein appeared.

Chen Shu saw that she had not moved yet, and was a little confused, and said softly: "Don't write?"

These two words made An Jing come back to her senses and asked her to write it? Is this telling her the answer?

She pursed her lips, twisted her mind, and wrote down the answers step by step on the blackboard as he read.

His voice was not very loud, but he was calm and powerful, and every word was clear.

He was still writing until she finished writing.
To be continued...