Chapter 10

The two-hour torturous math test was finally over. Bi Qi and Ma Zhengxuan collected the test papers and sent them to Gu Lu.

As soon as they walked out of the classroom, Bi Qi and Ma Zhengxuan looked at each other and both smiled bitterly.

"How did the exam go?" Bi Qi asked first.

Ma Zhengxuan shook his head, "It's not that good. The big questions at the back are okay. I can't fill in the blanks in the first three questions, and I'm not sure about a few more."

Bi Qi sighed, "I'm similar to you. There are a few questions that I rack my brains and can't come up with solutions to."

While they were talking, the class representative from Class 17 next door also walked out of the classroom holding papers.

Several people looked at each other, speechless and choked.

"Teacher, all the papers have been collected." Bi Qi said to Gu Lu who was sitting at the desk in the mathematics department office.

Gu Lu pointed to a place on the table and said, "Put it over here."

"Why, why don't you leave? What's wrong?" Gu Lu glanced at Bi Qi, who was standing still, and said with a smile.

Bi Qi rubbed his hands, "Um, teacher, do you have the answers to this weekly test question?"

"Oh, yes, I forgot about this. Just wait here and I'll type it out right away." As he said that, Gu Lu created a new document on the computer. He didn't even glance at the title, and typed quickly on the keyboard with his fingers.

hit.

Lines of formulas appeared on the screen, and Gu Lu didn't think or pause at all.

Bi Qi's mouth opened in surprise, "Teacher, are you...writing the answer now?"

"What, is there anything strange?" Gu Lu asked distractedly while typing on the keyboard.

Bi Qi swallowed hard, "No, no..."

A few minutes later, Gu Lu handed the printed answer to Bi Qi.

"Then teacher, I'll leave first."

"Wait a minute. Let me ask you something."

Gu Lu rubbed his chin and asked, "How did you feel about today's test paper?"

It was the first time that the question was given, and Gu Lu still wanted to hear feedback from his classmates.

"Very good!" Looking at Gu Lu's expectant eyes, Bi Qi said against his will.

"Really?" Gu Lu tilted his head and sounded suspicious.

"Really!" Bi Qi nodded heavily, "When I collected the test papers, several students held the test papers and refused to let me take them away. This shows how much they love this set of test papers. There were even a few students

, I was moved to tears on the spot!”

Gu Lu was satisfied and said, "Since the students' evaluation is pretty good, I will follow this standard next time."

After saying that, Gu Lu waved his hand, "Okay, it's none of your business, let's go."

Classmates, I really didn’t mean to harm you! I was forced by Teacher Gu to say such things against my will!

Yes, that's it, I was forced!

After Bi Qi comforted himself, he turned around and walked away in small steps.

…………

On the other side, inside the classroom.

According to common sense, they would have gone directly to the cafeteria to eat after handing in their test papers.

But no one did this this time. Instead, they gathered together in twos and threes and had a heated and loud discussion.

"Holy crap, what kind of fairy question is this? How many of the fifteen choices and fill-in-the-blank questions do you know?"

"Three ways."

"I am also a three-way person."

"I only know two words."

"Hey, I can say that I don't know how to do it!"

"Um, can I just ask, is this test paper difficult?" Such an abrupt voice made many people in the classroom look confused.

Who is it that made such an arrogant statement?

From the tone of his voice, he seemed to be disdainful of the difficulty of this mathematics test paper.

Everyone looked in the direction of the sound and saw a boy with thick limbs sitting in the last row of the classroom near the trash can.

Everyone held their foreheads together.

Indeed, for someone who has always been ranked last in the class, it is not surprising that he could say this.

After all, whether the test paper is easy or difficult is the same concept to him.

Because he doesn’t know how!

It was in such a noisy environment that Bi Qi returned to the classroom.

Seeing the excited and indignant looks of each of his classmates, Bi Qi subconsciously shrank his neck.

If the students knew that because of him, Teacher Gu's next question would be the same as this time, then I... would probably be torn apart.

Bi Qi carefully returned to his seat, holding a piece of A4 paper, turned around and said to Ma Zhixuan behind him, "Ma Zhixuan, do you want to read the fresh mathematical answers?"

Ma Zhixuan's eyes lit up as he lowered his head.

Bi Qi laid the answer horizontally on the table, and the two of them put their heads together and looked at it line by line.

"It turns out that this is how this is done. You can get the answer by transforming this and this formula. Why didn't I think of it at the time!"

"Ma Zhixuan, look at this. The teacher is using the transformation formula of a geometric sequence. You can calculate the answer in just a few steps. Our method is too complicated."

"Also, in the quadrature formula, only k-1 is found, so the calculation will obviously be much simpler."

Both of them can be regarded as two of the people with the highest level of mathematics in the entire senior year of high school, so they are naturally very knowledgeable.

Gu Lu gave them this answer, and after reading it for a while, their hearts were filled with horror.

The problem-solving method in the answer is the kind of problem that can be solved in one step, never in two steps. More importantly, the content used does not exceed the outline at all.

All are formulas and theorems based on high school mathematics.

"Teacher Gu, you are so awesome!" Ma Zhixuan murmured to himself.

…………

Sunday.

Gu Lu came to work as usual.

As soon as I opened the office door, I saw Teacher Sun Ya sitting at the door with her round legs wrapped in stockings.

"Teacher Gu, you're here!" Sun Ya stood up, tilted her head and smiled.

Gu Lu was startled, "Teacher Sun, don't you have no class today?"

"The school doesn't have regulations that say you can't come to work if you don't have classes on weekends." Sun Ya carried the food box and followed Gu Lu to the desk.

She would not tell Gu Lu that she came to school specifically to feed Gu Lu.

Sun Ya put the food box on the table and opened it carefully, "Teacher Gu, this time I not only brought you glutinous rice balls, but also mung bean cakes. You must try them."

Seeing Gu Lu eating the dessert she had carefully prepared, Sun Ya looked satisfied.

"By the way, Teacher Gu, I'm learning to make cheesecake recently. When I learn how to make it, I'll give it to you to try, okay?"

Looking into Sun Ya's expectant gaze, Gu Lu hesitated for a moment and nodded gently in agreement.

"Hiccup~~"

After eating the dessert brought by Sun Ya, Gu Lu covered his mouth and burped.

It seems that he will not be able to eat breakfast in the future. The desserts Sun Ya brings every day are enough to fill his stomach.

Seeing that the feeding was completed, Sun Ya carried the small food box and left with a satisfied look on her face.

At this time, Teacher Zhou Haihong came over with an expressionless face. After seeing Sun Ya close the door and leave, he said to Gu Lu, "Teacher Gu, have you collected yesterday's test papers?"

"Hey, that's it." Gu Lu picked up the two piles of test papers on the table and handed one to Zhou Haihong, "Teacher Zhou, this is from your class."
Chapter completed!