Xueba: The knowledge I teach, critical hits are returned

Of course, it's not just the students in Class 3 of Senior 3 who are waiting....

In the corner of the last row of Class 3, Zhang Bo, the math teacher of Class 3, was also full of curiosity, waiting for the start of the live teaching....

As a top student who graduated from Nankai University and a mathematics teacher who has taught at Yangcheng No. 1 Middle School for decades, Zhang Bo does not believe in miracles or inexplicable rapid progress. He believes that hard work will bring rewards.

Therefore, he feels that it is not appropriate for him to stand here.

But...The fact that student Liu Yanyan improved her math score by 50 points in a short period of time really aroused his curiosity.

He wanted to know...What kind of anchor teaching anchor has such ability, or he wants to know the real reason why Liu Yanyan's grades have improved by leaps and bounds

""It's started, it's started!"

Suddenly, a student shouted loudly while holding up his mobile phone.

Instantly, the entire Class 3 of Senior 3 fell silent.

All the students looked at the projection screen on the podium, and a picture appeared on the screen. What came into view was a 'light yellow' wooden desk, on which was placed a mock college entrance examination paper, a piece of draft paper, and a black signing pen. It was simple but concise.

"Hello, all the students in Class 3 of Yangcheng No. 1 High School."

"Welcome to the live learning room"

"Let's start teaching."

Without any extra nonsense, after a simple opening speech, Gu Bai began teaching.

Liu Yanyan sent a message before Gu Bai's live broadcast to explain that this time Class 3 would watch the live teaching together on a large screen, so Gu Bai didn't care about the number of people in the live broadcast room.

Anyway, as long as the students in Class 3 could understand the math knowledge he taught, the system would give rewards.

"Set M = {2,4,6,8,10}，N={x|-1x6}, then M∩N=（）"

"A.{2,4}B.{2,4,6}C.{2,4,6,8}D.{2,4,6,8,10}"

"Sets are one of the must-test questions in the college entrance examination. If you want to master sets, you must immediately understand the concepts of sets, such as subsets, intersections, unions, and complements......."

In this way, Gu Bai began his teaching according to the order of the test paper.

Because he was facing the whole class and considering some poor students, Gu Bai would explain it no matter how simple it was.

Soon.

After finishing the multiple-choice questions, some students with good grades in the class said:

"It's just so-so. It feels similar to what our math teacher said."

"Yeah, nothing special."

"Alas! The greater the expectation, the greater the disappointment."

After all, these questions are very simple for these students with good grades, and they already know how to do them.

However, some students in the back row of Class 3 with poor grades were suddenly enlightened.

It seems that...Without Kak, the multiple choice questions were over.

Most importantly, they had no doubts and everything went smoothly.

"Shut up!!!"

"You have good grades, so you already know how to answer these questions. Of course, you think the host’s explanation is average."

"But we are different. We think the anchor is very good."

Immediately, Wang Meng, a poor student in the back row of Class 3, stood up and shouted angrily:

"Yes, the host spoke very well."

"I, a poor student with a score of 70, understood everything. I feel that it is better than what our teacher Zhang Bo said."

Another student in the back row with poor grades also stood up to refute.

Hearing that it was better than what he said, Zhang Bo, who was standing in the back row, touched his nose awkwardly.

As a math teacher, Zhang Bo must have the most say in whether Gu Bai's teaching is good or not.

Zhang Bo's evaluation was: There is no problem with the teaching, and the teaching is not bad, but not excellent.

But Zhang Bo didn't know whether it was...He, like those students with good grades, knew all these questions.

So he knew that Gu Bai's teaching had the ability to understand.’、‘learn by analogy’、‘Memory, etc., and these have an unimaginable effect on those students with poor grades.’

""Okay, keep quiet and continue to listen to the class." Zhang Bo stopped the quarrel in the class. The students in the back row with poor grades were so interested and eager to learn. Of course, he would not stop the live broadcast.

Gu Bai did not know what happened in Class 3 and continued to explain the questions one by one according to his rhythm.

As the fill-in-the-blank questions were finished, the explanation of the test paper came to the big questions.

The students in Class 3, both good and poor, began to concentrate.

【As shown in the figure, we link PG1, PG2, PG3 and extend them to AB respectively.、BC、AC intersects at point D、E、F.....】

【...And because G1G2∩G2G3=G2, plane G1G2G3 is parallel to plane ABC, so S△G1G2G3:S△abc=1:9. 】

Spatial geometry involves various knowledge points such as auxiliary lines, return lines, parallel lines, etc., and is also one of the must-test questions in the college entrance examination.

Although its difficulty is not as high as that of a number series,...Even some students with good grades will lose points in this project. Even some top students will have a headache if they can't find the auxiliary lines....After listening to Gu Bai's analysis of the ideas and methods for solving the problem, all the students in Class 3 fell into silence. The students with poor grades were a little surprised that they understood it.

The students with extremely poor grades were still a little confused, but...Even in the confusion, they also had some insights.

The students with average or good grades showed a touch of shock on their faces.

Yes, they were shocked.

Gu Bai's lectures have a 20% inference ability, and this inference ability has made these students with average or good grades suddenly enlightened, as if a new world has opened up.

"WTF....This anchor...There's something."

"That’s right, that’s right. I suddenly felt that I had a different understanding of finding auxiliary lines in spatial geometry. It was as if I had suddenly become enlightened."

"Likewise, I feel like I can easily solve any spatial geometry problems I encounter in the future."

"Awesome, this anchor is really awesome. I apologize for the offense I just caused."

"I apologize too. This anchor really has something. It can make people suddenly enlightened and suddenly get enlightened."

"......"

Suddenly, the students of Class 3 of Senior 3 of Yangcheng No. 1 Middle School were excited.

Students of different grades showed different expressions on their faces.

Some were surprised, some were incredulous, some were happy, and some even had an epiphany.

But all the expressions told Zhang Bo, the head teacher of Class 3 of Senior 3, who was standing at the back of the classroom: This anchor is really good!!!.........................................

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