Rebirth Junior High School: The Excelling Top Student Goddess

After the conference, students returned to class.

15 classmates ran back to the classroom quickly, and this morning it was a math task again. Take your time to complete and be the first!

Yun Hua summarized the knowledge points and then released tasks and exercises.

Pei Zixuan glanced at those things that didn’t work well, throwing them aside and sleeping.

But he just got down, and someone immediately pats him: “Hey, second place, what does this question mean?”

Pei Zixuan twitched his mouth, glanced at the title, and his eyebrows frowned immediately: “You pig, -x? And (-x)? Isn’t it the same thing? Is it the same thing? Yes? Pig brain! “

Zhu Yiqun twitched his mouth, but in order not to be rectified by the first place, he could only brace oneself nodded: “Yes, yes, how do you know my name is pig? Well, can you tell me clearly? OK? “

Pei Zixuan was speechless: “Assuming x is 2, -x? =-4; (-x)? Equals 4 …”

“It’s different, but …” Zhu Yiqun said.

Pei Zixuan gave him a cool glance, “Can you wait for me to finish?”

“Yes, please, please!” Zhu Yiqun hurriedly lowered and made small.

Pei Zixuan is going crazy, he does n’t understand such simple things, but he still holds temper and writes on the paper: “Suppose X was just a positive number, now suppose X is a negative number, such as x = -2. Then -x? Is equal to- 4; and (-x)? Equals 4! Do you understand what’s different? “

Zhu Yiqun scratched his head: “I seem to understand …”

Pei Zixuan lost his pen and lay down.

But less than a minute later, he was woken up again: “What about the 3 power, what about the 4 power, what about the 5 power …”

Pei Zixuan vomits blood!

……

This afternoon is physics. I just started to study physics in the second year, so I don’t need to review the first day, just start from the beginning of the textbook!

Measuring this is relatively simple. Pay attention to the unit and error of the measurement. The confusing thing is the reference object in the mechanical movement.

This person who understands it is easy to understand, and it ’s difficult for people who do n’t understand to turn around. However, the reference object must be learned, because the reference object is too important in mechanical movement. In the future, all physical calculations related to mechanical movement need to use the reference object.

For example, the distance between the car driving in the opposite direction and the car driving in the opposite direction, as well as the relative speed, etc., need to use reference objects. So this chapter must be understood!

After Han Fang explained, he used concrete examples to explain what is a reference object …

Yun Hua explained to the class representatives after the first session that she had to leave early.

Pei Zixuan immediately hesitated: “I have something too, I have to go first!”

Damn, he came to sleep in 15 class, but from morning till now, he hasn’t slept for a minute!

Yun Hua glanced at him: “Don’t worry, the second section is the discussion class. You have to answer the questions of other students. This is the condition for you to come to 15 class. After the second class, you can leave after completing the task. “

Pei Zixuan: “…” Is it too late for him to leave 15 class now?

The pigs of 15 class are so simple that they have to die. He has to explain it several times, and speak a little bit clearly, or they do n’t understand it!

If you do n’t understand, do n’t understand, he was scolded that many times by a pig, but he is not angry, licking his face and coming up to continue to ask the simple question of death!

I’m so annoyed!

Yun Hua smiled pats Pei Zixuan’s shoulder: “Come on!”

She must hurry home and tell the editor that today’s “Qinggong Jingmeng” is on the shelves, and she has to go home in advance to deal with something!

Pei, who did not run away, was instantly drowned in the sea of ​​Wang Yang questions of 15 classmates.