"Classmate Li Dan? So what are you waiting for? Everyone's time is precious, so don't grind it any further! ”

Liu Mingxi smiled faintly, simply walked down from the podium, and then stretched out a toned and slender arm and dragged Li Dan to the podium.

It was the first time for Li Dan to step on the podium during class, and he was standing with Teacher Liu Mingxi, who was so hot, and his heart was somewhat empty.

"Here, you write the process on the blackboard."

Liu Mingxi was completely chasing ducks to the shelves, and forcibly stuffed a piece of chalk into Li Dan's hand.

Li Dan looked up at the question on the slide again, and then turned to face the blackboard.

The whole classroom was silent, and everyone watched calmly as he answered the questions on the blackboard.

At this moment, the sweat on Li Dan's palms was almost soaking the chalk, and he had been trembling slightly because of nervousness.

"Click!"

The moment the chalk touched the blackboard, it suddenly broke in two.

The half of the chalk that flew out hit Liu Mingxi's face impartially, and immediately drew a white mark on her white and translucent cheeks!

Li Dan ...... I'm just asking you to do the questions...... What are you nervous about? Excited about what? ”

Liu Mingxi smiled and reached out to wipe the white marks on his cheeks, and stuffed a complete piece of chalk into Li Dan's hand.

The classroom burst into laughter, and all kinds of doubts were heard.

"I'll just say it! How could Li Dan do such a difficult topic? Teacher Liu, aren't you embarrassed for him? ”

"Yes, let's let Chen Min, a member of the study committee, do it!"

"I won't do this last big question during the exam, so you might as well explain it to us!"

……

In the midst of the commotion and doubts, Li Dan's originally nervous mood was relieved.

The environment of the whole classroom just now was so quiet, he felt too uncomfortable!

Or is it that the noisy environment now makes people feel more comfortable.

Li Dan held the complete piece of chalk handed over by Liu Mingxi in his left hand, but used the remaining half of the chalk in his right hand to "brush and brush" on the blackboard.

As the chalk writing on the blackboard grew, the noisy environment in the classroom quickly quieted down.

Li Dan's problem-solving ideas are fully revealed on the blackboard, which is not only clear and clear, but also concise and efficient, almost comparable to Chen Min, a member of the study committee.

The students who were still questioning just now nodded yes as they watched the process of solving the problem on the blackboard.

Some students have even taken out their study notebooks and started to transcribe them one by one, obviously preparing to use Li Dan's problem-solving process as a model to study carefully.

Writing out the final answer to this question in a chic manner, Li Dan threw the remaining chalk head in his hand, which was not much bigger than a soybean grain, into the trash, then turned to look at Liu Mingxi and asked, "Teacher Liu, do you think I answer like this?" ”

Liu Mingxi replied with a smile: "The answer is right, and the process of solving the problem is also correct." However, that's not how you answer the question on the exam paper! ”

Li Dan instantly understood Liu Mingxi's true intention of letting him do the question in public on the blackboard, and smiled awkwardly: "Teacher Liu, I was wrong...... I got dizzy during the exam, I really didn't mean to! I promise, I won't dare again next time! ”

"I haven't said a word yet! You just jumped out and admitted your mistake so proactively? Why didn't I find out that you were so brave to admit your mistakes, or so eager to admit them? ”

Liu Mingxi smiled, pointed to the blackboard and said, "Whether you admit your mistakes or not, first write your problem-solving process on the exam paper on the blackboard!" ”

Li Dan was completely helpless this time.

Isn't he just dizzy and clever, as for killing them all in front of the whole class?!

Li Dan recalled carefully, he and physics teacher Liu Mingxi did have no grudges in the past and no hatred in the near future.

Before, as a senior scumbag, he had no intersection with Liu Mingxi at all, and he didn't even say a word alone!

How can a good and decent situation make the situation so deadlocked......

Now, I am chasing ducks to the shelves, and I have to write on the blackboard if I have to bite the bullet!

Who makes people teachers and students?

openly confronted the teacher, even if he borrowed Li Dan's courage, he didn't dare to do it......

With a light sigh, Li Dan took out the complete piece of chalk, hesitated, pouted into two paragraphs with a "click", and then pinched the remaining half and wrote on the blackboard.

Just now, Li Dan filled two small blackboards before he finished the process of solving the whole question.

But this time, Li Dan only wrote a small half of the blackboard, and he had already calculated the final answer.

The two approaches to solving the problem are very different, but the final result is exactly the same!

The classroom fell silent, and everyone's mouths opened wide in surprise and their eyes widened.

However, what really surprised them was that the second method that Li Dan used to solve the problem was obviously much simpler and brighter, but they couldn't understand it at all!

The formulas and symbols brought into the process of solving the problem have never been seen before!

"This is the ...... of calculus mechanics analysis"

A calm and calm voice suddenly came from the audience, Li Dan followed the voice and looked over, it was Chen Min, a member of the study committee!

I didn't expect there to be students in this classroom who knew calculus!

Li Dan's heart felt inexplicably hot, and suddenly there was an indescribable feeling of emotion and joy mixed with complex emotions, and he couldn't help but burst out!

"That's right! Li Dan's second method of solving the problem is the mechanical analysis method of calculus! ”

Liu Mingxi smiled slightly, and gave Chen Min who was sitting below an approving look.

Chen Min, a member of the study committee, knew about calculus, and Liu Mingxi was not surprised at all.

Because, Chen Min once represented the school in the provincial high school Olympiad in the second year of high school, and won the first prize in the physics competition and the first prize in the mathematics competition!

If it weren't for something that happened at Chen Min's family at that time, she had no intention of continuing to participate in the competition.

She will definitely be able to represent the province in the national high school Olympiad!

If she continues to make a name for herself in national competitions, she may even represent her country in the World Olympiad and win the prize!

Thinking of this extremely regrettable past, Liu Mingxi can't help but feel sorry.

"Okay, classmate Li Dan, you can go back to your seat."

Liu Mingxi sighed lightly and pointed to the back row of the classroom with his hand: "However, during the college entrance examination, you should try not to use problem-solving methods or formulas that go beyond the scope of high school...... Because the person who corrects the college entrance examination paper may not have this patience...... It's better to be on the safe side. ”