Quickly wear the thunder robbery, here I come

Chapter 718 I want to be a good boy! (ten)

Jiang Yu didn't know that his homework had been circulated in the office for the time being, and now Jiang Yu was still listening to the math teacher on the stage explaining geometry exercises.

Mathematics teacher Zheng Xiang Mr. Zheng spoke passionately on the stage, and those twigs that were pulled from nowhere were straight lines drawn on the blackboard.

Jiang Yu was amazed. The branches were all curved. Teacher Zheng was able to draw such a straight line. I had to sigh that it was really amazing.

In fact, Teacher Zheng was forced out of school. This group of "bad" students came to the school and ruined his own teaching aids at every turn. At first, he thought about bringing them with him after class, just in case he didn't bring the teaching aids properly. The proper ones are about to be folded into the hands of the students. I don’t know how these bastards are causing harm to the teaching aids.

So now Mr. Zheng is good at drawing straight lines, even with curved branches, he can still draw straight lines, let them go to hell with teaching aids, a good math teacher can draw straight lines without teaching aids!

Teacher Zheng was very satisfied with the surprised expressions of the students in the stands. Your teacher is still your teacher. Is this straight line, this arc, standard?

But today, Teacher Zheng's mind is not on this, but on a few thorny students in the class who don't like to study very much, such as that Bi Feifei, such as that Wang Jiawen.

Is it because the sun is coming out from the west today? Today's math class is the first class in the morning. If there is no accident, this group of people should have fallen asleep long ago. Even if they don't fall asleep, they should be How can you listen carefully when you are doing other things?

"Wang Jiawen! Get up and talk about the knowledge points I just mentioned. This place has been mentioned many times a long time ago." In order to prove that what he saw was an illusion, Teacher Zheng called Jiang Yu's name.

Hearing the teacher calling himself, Jiang Yu stood up and looked at the blackboard, "First, the lines parallel to the same line are parallel to each other. Second, the two parallel lines are cut by the third line, and the corresponding angles are equal. Third, the two parallel lines are parallel to each other. Parallel straight lines are cut by a third straight line, and the alternate interior angles are equal. Fourth, two parallel straight lines are cut by a third straight line, and the same-side interior angles are complementary."

Listening to Jiang Yu fluently uttering what he just said, Teacher Zheng still didn't quite believe it, "Then tell me about the judgment of parallel lines, I've also talked about this just now."

"First, the cognate angles are equal, and the two lines are parallel. Second, the alternate interior angles are equal, and the two lines are parallel. Third, the same-side alternate interior angles are complementary, and the two lines are parallel. Fourth, two days are only parallel to the third line. , the two straight lines are parallel. Parallel axiom: at a point outside the Jingguo line, there is and always has a straight line parallel to this straight line. The corollary of the parallel axiom: if two straight lines are parallel to a third straight line, then the two straight lines are also parallel to each other. The inference of the parallel axiom reflects the transitivity of parallel lines, which can be used as the basis for future reasoning.”

After Jiang Yu finished speaking, he looked at Teacher Zheng on the stage calmly. These things are trivial. He was proficient at memorizing them when he was in school. After all, these things are much easier to memorize than practicing exercises.

"I XX"

"awesome."

"I still can't recite it."

"I can't recite it either, I just know what's going on."

"emmmm..."

"Okay, very good, Wang Jiawen, please sit down." Teacher Zheng waved his hand to signal Jiang Yu to sit down. The classmate said that if you can't recite it up to now, it's okay, "Wang Mengmeng! Li Ziliang! You two copied what Wang Jiawen recited ten times, and if you can't recite it in the next class, you will argue ten more times!"

"Hahaha~"

The tragic situation of the two students lying on the gun made the other students happy in an instant.

I haven’t changed teachers in the past few years in junior high school, and the teachers and students are no longer familiar with each other. You can tell who said it just by listening to the voice. Teacher Zheng can tell who the two classmates who can’t recite are just by listening.Even if they are hidden in the crowd.

"Teacher, I can't memorize it but I know what's going on!" Li Ziliang tried to struggle to see if he could avoid these ten times.

"No! It's not enough to just know what's going on, the other students have remembered it, why can't you remember it!" Teacher Zheng didn't say it clearly, but it was obvious that the "other students" were talking about Jiang Yu.

"That's right, comrade still needs to work hard!" Jiang Yu sat in the back corner and gave Li Ziliang a make-up in a leisurely tone.

"Hahaha! That's right, comrades still need to work hard!" Jiang Yu's words made the students burst into laughter again, why didn't they find that Wang Jiawen was so interesting before.

"Wang Jiawen! I'm afraid you're messing with me."

"No, I didn't! I didn't do it! Don't talk nonsense!" Jiang Yu saw Li Ziliang looking back at him with resentful eyes, and quickly waved his hands to deny it. This look made people who didn't know see it and thought he was messing with Li Ziliang Woolen cloth.

"Okay, okay, I'll let you two recite it in the next class!!" Teacher Zheng felt that the fuss was over, so he came out to bring the subject back to the topic and continued to talk about the knowledge points he had learned before.

When you listen carefully to the lecture, the time actually passes quickly. If you don’t listen carefully and always think about leaving get out of class, then the time will really feel like years.

Jiang Yu was listening carefully, so the time passed quickly. I felt that the get out of class bell rang before Teacher Zheng spoke, "Okay, class is over, after class, remember to hand over the homework to the group leader, and then the group leader will Give it to the class representative, and let the class representative deliver it to my office."

"I know!~~"

"En." As soon as Teacher Zheng left, the class became lively. Those who went to the bathroom went to the bathroom, those who ate snacks quickly ate snacks, and those who wanted to drink water went to the water dispenser next to the podium in front of them.

"Aren't you going?" Bi Feifei saw that Jiang Yu was still sitting in the corner with his old god, and didn't have the slightest intention to go out for a stroll.

The desks in the classroom of Class [-] are arranged with four desks in a row, that is, four people are next to each other. There are two rows and three aisles in the classroom.

Jiang Yu's position is in the corner of the last row near the north, that is to say, the north is the aisle and the wall, and the back is still the wall.

"I don't want to go out, I want to do my homework!" Jiang Yu said while taking out his homework book.

"Homework? Can you do those questions?"

"Must! Do you want to copy?" The few exercises assigned by Teacher Zheng to be written in the homework book are not too simple. A courseware takes 15 minutes, and Jiang Yu finished it in about 10 minutes.

"Hey, it's done! Who is our team leader?" Wang Jiawen really doesn't know who his team leader is. For Wang Jiawen who never does homework, it is useless to know who the team leader is.

(End of this chapter)