third chapter

"Teacher, the algorithm you used to derive the implicit function and the triple integral seems to be content in college."

After Bi Qi finished speaking, he looked at Gu Lu cautiously.

Gu Lu was stunned for a moment, then patted his head helplessly.

Get used to it, get used to it...

The habits he has developed over the years have allowed him to subconsciously use the simplest method to solve problems.

But they forgot that these high school students only studied elementary mathematics, and the advanced mathematics problem-solving methods he used on the blackboard would only be learned in college.

Trouble, trouble!

A problem that can obviously be solved with a four- or five-line formula can only be solved with a dozen or so complicated formulas.

Gu Lu felt slightly sad.

But as the Romans do, Gu Lu picked up the blackboard eraser, erased what he had written before, and then helplessly explained the final question in a way that high school students could understand.

"I don't care what your last teacher said, but my requirement is that each of you must have a wrong question book. Making mistakes is not terrible, but not knowing how to reflect after making mistakes is the most terrible thing. Remember to write down the questions after you go back

Put the wrong questions into the wrong question book and I will check them in the next class."

"Okay, that's it for this class. Class is over. The class representative will collect the winter vacation homework and send it to the office later."

After saying these words lightly, Gu Lu walked out of the classroom, leaving only his handsome figure behind.

Several nymphomaniac little girls reluctantly turned their attention until Gu Lu's back disappeared from sight.

"Lingling, I have decided that I will work hard to study mathematics in the future! Let Teacher Gu be proud of me."

"Haha, I wonder where you got the courage to say this when you only scored over 70 in the math test."

…………

The office of the high school mathematics group is on the second floor of the entire teaching building, next to the English group and physics group.

There are ten teachers in the mathematics group, including Gu Lu, responsible for the mathematics teaching of eighteen classes in the third grade.

Except for Gu Lu, the other nine are veteran teachers with more than five years of teaching experience.

Pushing open the office door, Gu Lu saw at a glance that in the middle of the office, an old teacher who was nearly sixty years old was wearing loose sportswear. He stood with his feet spread out and his limbs were doing some movements similar to "broadcast gymnastics" in a rhythmic manner.

.

The other teachers in the office seemed to have long been accustomed to it, and they were busy doing their own things on their desks.

This was the first time Gu Lu had seen it, so he was curious and came closer to take a look.

The more he watched, the more Gu Lu felt that the teacher was doing radio gymnastics. Although it felt inexplicably familiar, it didn't seem like the version of "The Times is Calling".

"Which radio gymnastics routine is this?" Gu Lu's untimely voice suddenly sounded.

The old teacher's face suddenly darkened, he stopped and said angrily, "This is Baduanjin, Baduanjin! It's not some radio gymnastics!"

"Uh..." Gu Lu didn't expect the old teacher's reaction to be so violent, so he quickly apologized, "Sorry, sorry."

The old teacher waved his hand, then looked Gu Lu up and down, "You should be our new math teacher?"

"Yes, senior, my name is Gu Lu." Gu Lu stretched out his hand.

The old teacher nodded and shook hands with Gu Lu, "My name is Zhou Haihong, and I am currently the leader of the mathematics teaching group for the third year of high school."

"Hello, boss." Gu Lu said kindly.

Zhou Haihong squinted his eyes and said with a smile, "Just call me Teacher Zhou. If nothing else happens, we will need to work together for a year or even longer, so there is no need to be so polite."

"In your first year here, you are leading a key class like Class 18, so you have a heavy responsibility! If you don't understand anything or encounter any difficulties, you can come to me."

Gu Lu nodded, "Yes, definitely."

Gu Lu turned around and wanted to return to his desk.

But I didn't expect to be stopped by Teacher Zhou again.

"Oh, Teacher Gu, wait a minute."

"Huh? Teacher Zhou, do you have any other arrangements?" Gu Lu turned his head in confusion.

Zhou Haihong looked Gu Lu up and down, touched his chin and said, "Teacher Gu, I see that your bones are amazing. You must be a genius. How about practicing Baduanjin with me? It can not only strengthen the body, but also cultivate the mind. How about it?"

,Young man, are you interested?"

Zhou Haihong's current demeanor looks very much like the unscrupulous Taoist priest on the mountain.

Gu Lu's face froze, and he laughed and said, "Uh, Teacher Zhou, let's forget it. I think radio gymnastics is pretty good."

Zhou Haihong looked regretful, a little disappointed that he had not promoted "Ba Duan Jin" in the office.

Gu Lu returned to his desk.

Not long after he sat down, he saw Bi Qi and another classmate named Ma Zhengxuan walking in with a stack of homework.

"Are you still the math class representative?" Gu Lu looked at Bi Qi with a smile.

Monitor, math class representative.

Gu Lu didn't expect that this classmate who was caught playing with his mobile phone in class would also have multiple jobs.

Bi Qi said with a proud look, "Before, teachers appointed class representatives based on grades. Ma Zhengxuan and I have always been ranked in the top two of our class, so the math class representatives have always been the two of us."

Gu Lu suddenly remembered something, "When you were in class just now, you reminded me that I used the knowledge of college advanced mathematics. How did you tell?"

Bi Qi scratched his head and said half modestly, half complacently, "When I had nothing to do during the summer vacation, I studied some college mathematics by myself."

"Oh?" Gu Lu raised his head with interest and asked with a smile, "So you want to apply for the mathematics department in college?"

Bi Qi nodded heavily and clenched his fists, "My goal is the Mathematics Department of Yenching University!"

"I am also from the Mathematics Department of Yanda!" Ma Zhengxuan, who had been silent next to him, also spoke in a muffled voice at this time.

After putting down their homework, Bi Qi and Ma Zhengxuan said goodbye and left.

Gu Lu looked at the two people's leaving figures, stroking his chin and thinking.

These two are good seedlings, we can focus on cultivating them...

…………

There are some advantages to being a teacher.

That means you can go to the canteen to eat in advance to avoid the trouble of queuing.

The morning classes at Haicheng No. 1 Middle School ended at 11:55. Gu Lu stayed in the office until after 11 o'clock, then walked slowly to the cafeteria.

There are three floors in the cafeteria, corresponding to the three grades of high school. The types of food in the cafeteria on each floor are the same.

Since there are very few teachers who choose to eat in the cafeteria, there is no special dining window for teachers.

Arriving on the first floor of the cafeteria, Gu Lu picked up the stainless steel plate used for cooking and came to a window.

I glanced at it, tomatoes and eggs, braised eggplant, stewed chicken, braised meat and potatoes...it was very rich!

Smell it.

Sure enough, the big pot dishes taste the most fragrant.

Gu Lu swallowed and said to the aunt who was cooking, "Auntie, give me two steamed buns, and another portion of tomatoes, eggs, braised pork and potatoes."

"Okay!" The aunt shouted enthusiastically.

First, I added a spoonful of tomatoes and eggs to Gu Lu's plate. Well, a full spoonful.

Then the aunt put the spoon into the red fried meat and stewed potatoes and came out again. Gu Lu's eyes suddenly lit up.

On the big spoon, there is a layer of braised pork.

Gu Lu reached over the plate to take it.

But the aunt was not in a hurry, "Young man, you came earlier. Did you skip class?"

As he spoke, the hand holding the spoon tightly trembled under Gu Lu's face, which became increasingly ugly.

Shake and shake, shake and shake...

Gu Lu's face was also shaking.

The seven or eight pieces of braised pork on top fell off one by one, one by one...

"Auntie, please stop shaking your hands!"

Gu Lu yelled in his heart, but did not say it out in the end.

Finally, Gu Lu glanced at the cafeteria mother with resentment, then found a place to finish the meal with only a piece of braised pork left on the plate.
Chapter completed!