Xueba's Sea of ​​Stars

Chapter 29 World Class Topics

"It's been a little too much talking, let's talk about the competition."

After Bi Wanqing finished speaking, he walked back to the blackboard and picked up the chalk.

【Mentality】

"The physics competition is just a game. It's just a fist fight with students from other schools and other provinces. No one is afraid of anyone. But don't hold the mentality that I insist on getting a gold medal and sending it to Beijing University Jinghua. After all, no matter how good it is Even the students dare not guarantee that they will get the first place."

At this point, Bi Wanqing paused and corrected himself: "It should be said that it is most students, well, the vast majority."

This sentence... has a story.

'It seems that there really is that kind of student who knows he will win the championship before he even participates in the competition. ' Wu Bin thought secretly.

"You started too late, and the sea of ​​questions strategy is definitely useless to you. Otherwise, I have a lot of obscure books that can help you expand your knowledge, and it is very likely to bet on the questions."

"It's not too late, teacher! Just show me, I read very fast." Wu Bin immediately raised his hand and said excitedly.

"Hehe, okay, you want to see that I will bring it to you tomorrow, but the premise is that you read the few books that Teacher Cai gave you first, and those are the big ones."

"okay, I get it."

【Problem solving method】

Bi Wanqing said and wrote four big characters on the blackboard.

"As long as you do most of the papers once, you will know the approximate solution to each question. For example, if you need to use an equivalent power supply to solve a question, don't use Kirchhoff's law to calculate violently."

After finishing speaking, Wan Qing suddenly drew a picture on the blackboard, clapped his hands, and looked at Wu Bin: "This is a question about space forces in Jiang Sixi's compilation of special topics. Generally, students will be confused when they first see it. Then, when there is no clever way to solve the problem, you can only use three-dimensional analytic geometry to do violent calculations.

"But in fact, there are many details in the title, such as the charge surface density to be counted as two surfaces..."

Listening to Bi Wanqing explaining the questions to himself, Wu Bin felt that it sounded quite easy to accept. Some of the problem-solving steps and thinking details were explained in detail, just like what the teacher himself said just now, he could always scratch the itch.

'This is very comfortable! '

Then Bi Wanqing told Wu Bin a lot about his competition experience.

For example, "Many papers always have unclear expressions, because the Chinese of physicists is taught by physics teachers."

"In addition to the text, the model of some questions is also unclear. Even if you figure it out, the teacher who gave the question may not be able to figure it out."

"How should I put it, just like the concept of reading comprehension, sometimes the original author's answer is useless.

"Typical examples are various soft, elastic, inelastic, inextensible ropes, or capacitor leakage, or the electric field energy density in the capacitor, etc."

After writing the entire blackboard, Bi Wanqing looked at Wu Bin's still bright eyes and smiled.

"Teacher Cai is really right about you."

"Huh? What did you say?"

"It is said that new knowledge is like a new toy to you. In fact, the few questions I just told you should be something you haven't been exposed to. Generally, students will feel boring and boring when they hear questions that they are not good at, but You are different, you listened carefully from the beginning to the end."

"Because I still know the basic concepts of these questions, and what you said, teacher, is very exciting and excellent. Anyway, it is the operation explanation of Thief 6, a handsome group."

"Hahahaha, I don't quite understand the strange words of you children, anyway, you should be praising me, right." Bi Wanqing laughed.

"It's necessary, it's not just a compliment, I really admire you, your lecture level is definitely world-class." Wu Bin gave another thumbs up and boasted fiercely.

"Okay, okay, as long as you like to listen, ouch, it seems a bit late, you haven't eaten yet."

"It's okay, Teacher Bi, I'm not hungry, you continue... Oh, teacher, you haven't eaten yet, have you? Why don't you go eat first?"

Although Wu Bin wanted to continue listening, he couldn't let the teacher lecture him on an empty stomach.

Seeing Wu Bin's reluctant eyes, Bi Wanqing walked down and patted him on the shoulder with a smile, "Why don't you go to the teacher's cafeteria with me to eat."

"Okay, okay." Wu Bin nodded quickly in agreement.

"Let's go then."

The teacher and the student soon came to the teacher's cafeteria. The students cannot come here by themselves, but the teacher can take it with them.

"What do you want to eat?" Bi Wanqing took out his meal card and asked Wu Bin.

"Oh, no need, Teacher Bi, I'll just buy it myself."

"So don't be polite to the teacher, just treat it... well, just treat it as you praised the teacher's reward."

"This……"

"Oh, which student is so good, I praise you, and you have to treat him to dinner." At this time, a male teacher in front of the two turned around and said in a joking tone.

Wu Bin glanced at the teacher, but didn't recognize which class the teacher was.

"It's Teacher Xiao Song, I just ate." Bi Wanqing greeted the teacher with a smile, and then introduced Wu Bin: "This kid just entered the competition group, which is very interesting. I have been teaching for so long, so you should praise me He is really the only happy student."

"Haha, is that right?" Teacher Song smiled after hearing this, and glanced at Wu Bin, "Huh? I don't think I've seen this kid in the competition group before."

"Well, it's my first time participating in the third year of high school."

"It's the first time in the third year of high school? Oh~~ I know, this kid is the little black horse in Cai Guoping's class, the one who suddenly got a perfect score in the exam, and he will be promoting it in the past two days." Teacher Song immediately thought of it.

"Yes, that's the kid."

"There is a future, keep working hard, then, Mr. Bi, you talk, I'll go over there for dinner first." Teacher Song said with the meal he just finished.

"Okay." Bi Wanqing nodded towards him, then turned to look at Wu Bin and asked, "What do you want to eat?"

"Just...just tomato scrambled eggs and braised eggplant."

It was the first time for Wu Bin to eat in the teacher's cafeteria, and he found that the dishes here seemed to be better than those in the student cafeteria, but he was embarrassed to order expensive ones for the teacher's treat.

"It's not enough to just eat vegetarian dishes. When you grow up." After finishing speaking, Bi Wanqing swiped his card and said to the aunt in the cafeteria, "Get a braised lion's head and another braised pork."

"Okay~ The teacher is right. You need to grow your body. What can you do if you eat less? Auntie will give you more food."

It is probably rare for the auntie in the cafeteria to see students come here to eat, and the servings are very generous. A large plate of braised pork is almost overflowing.

"Thank you, Auntie." Wu Bin took the plate and said.

"You're welcome, you're welcome, keep studying."

After Bi Wanqing finished cooking, he led Wu Bin to sit at an empty table.

The teacher and students had a great time chatting while eating.

　Work hard for the second update!Will keep going.

　　
　
(End of this chapter)