In class, Zhou Pingsheng is seriously teaching, what is the sine theorem and cosine theorem......

As soon as Gu Xiaotian heard these ghosts pouring into his head, his first feeling was...... I kind of want to doze off. Pen & Fun & Pavilion www.biquge.info

Su Qianqian turned her head to look at him and smiled, her expression seemed to have a hint of squeezing.

This is probably a kind of agitation.

After Gu Xiaotian felt Su Qianqian's gaze, his self-esteem exploded immediately, thinking that I can't be looked down upon by this little girl!

So he began to listen to Zhou Pingsheng's explanation attentively.

Gu Xiaotian in this world has indeed left too many courses, and since he had a mental problem five years ago, he has never instilled knowledge in his mind.

However, the current Gu Xiaotian is not like this, not only did he finish high school in his entirety, but his grades were not bad.

Fortunately, the mathematical knowledge of these two planes is similar, probably because many mathematical theorems are studied in the West, although the environment of China has changed a little, but it does not affect these.

In the case of history and language, there will be some differences in the content of modern history due to the difference in modern history. In the Chinese textbooks, some articles by modern literati are also missing, such as Mr. Lu Xun and Mr. Zhu Ziqing......

But Gu Xiaotian is not afraid of these liberal arts knowledge, because his memory has long been incomparable.

At this time, Gu Xiaotian began to be patient, integrated the mathematical knowledge in his original mind, and then integrated it with what Zhou Pingsheng said.

It stands to reason that Gu Xiaotian has been learning the knowledge in high school for a few days, and his memory will be somewhat blurry.

But when he concentrated on sorting it out, Gu Xiaotian was surprised to find that the knowledge he had learned before was gradually presented clearly in his mind, just like a deep memory that had been sealed for a long time, once he touched and opened it, he found that it had never left, but was just sleeping quietly in a corner.

"The sinusoidal theorem, in a triangle, the ratio of the sides to the sine of the opposite angle is equal; Cosine theorem, in a triangle, the square of any one side is equal to twice the sum of the squares of the other two sides minus the cosine product of the other two sides and their angles......" Gu Xiaotian muttered softly in his heart.

He suddenly found that as long as he was willing to extract his memory, all the knowledge he had learned before was clearly visible in his mind.

Gu Xiaotian couldn't help but get excited secretly, if this was the case, it would not be impossible for him to surpass Su Qianqian in the future, but it would indeed be a little more difficult.

After all, this little girl is really a college bully! Of the 580-point test paper, she scored 579 points, in Gu Xiaotian's opinion, this is not a human being at all!

"Xiaotian, if you have any curiosity that you don't understand, you can ask me." Su Qianqian turned her head and said with a smile, she didn't think about how good Gu Xiaotian's grades were, but it didn't hurt to know a little bit of knowledge.

"yes, I see." Gu Xiaotian nodded, his eyes still staring at the chalk that had been "rustling" on the blackboard on the podium last week, frowning slightly, and constantly integrating the knowledge points he talked about in his mind.

In a few moments, the class was over.

After class, Gu Xiaotian closed his eyes and thought for a while, and then pointed to a topic in the textbook that Zhou Pingsheng had just talked about: "Qianqian, how to solve this problem, I don't seem to understand it too well." ”

Su Qianqian turned sideways and glanced at the question, and then said with a smile: "The difficulty coefficient of this truth is very low, so it is difficult." ”

"What? Shouldn't it be easy to have a low difficulty factor? Why is it still hard? Gu Xiaotian was a little puzzled.

"Uh...... Let me explain it to you! If the average score of a set of 100 test papers is 60 points, the difficulty coefficient of this set of test papers is 0.6, and if the average score is 90 points, the difficulty coefficient is 0.9, indicating that this set of test papers is relatively simple. ”

"I see!" Gu Xiaotian thought for a while when he heard this, and finally nodded suddenly.

"But Xiaotian, are you sure you want to solve this problem? Let's figure it out first! Su Qianqian persuaded with a smile.

"No, just solve this problem!" Gu Xiaotian shook his head, the simple questions in front of him had already been solved in combination with the knowledge he had learned before, so naturally he didn't have to work hard.

He also felt that his mind was getting clearer and clearer.

"Alright then......"

Su Qianqian said, and took a pen and paper to explain the calculation step by step......

This question is indeed quite complicated, and Su Qianqian talked about it until the class bell rang.

After Su Qianqian put down the pen, she looked at Gu Xiaotian's frowning and thoughtful expression, and thought that he couldn't understand at all, so she chuckled and said with relief: "It's okay if you don't understand now, it'll always get better if you take your time." ”

Gu Xiaotian nodded and didn't say anything, because he was still trying to integrate Su Qianqian's solution ideas, and after a while, he probably understood everything.

Gu Xiaotian smiled proudly, and looked up to see that it was Wang Yurong, the Chinese teacher, in the class, wearing a black professional suit. After the play, she stopped wearing a white shirt and a black bra.

At this time, Wang Yurong was explaining the ancient Chinese text "Lanting Collection Preface".

Wang Xizhi is a famous calligrapher in the Eastern Jin Dynasty, with the reputation of "calligraphy saint", this "Lanting Collection Preface" is his representative work, so do students know what font this "Lanting Collection Preface" is? ”

"It's a book." Su Qianqian responded, but her voice was very small, and it could only be heard by Gu Xiaotian next to her.

When Gu Xiaotian heard this, he immediately raised his hand and shouted: "It's a book!" ”

Wang Yurong was stunned for a moment, his eyes turned to Gu Xiaotian, he couldn't help but be a little surprised, and then nodded with a smile: "Gu Xiaotian is right, "Lanting Collection Preface" is a line book, also known as "the first line of books in the world", in calligraphy, he and his son Wang Xianzhi are called "two kings". ”

"Erwang?" Gu Xiaotian was stunned for a moment: "Such a cow. The forced character, why did the name become so low as soon as it was combined? ”

Su Qianqian: "......"

Wang Yurong's teaching method is quite interesting, explaining the content while interspersed with some short stories about Wang Xizhi, at least it will not make the students feel too boring.

Gu Xiaotian also listened quietly, although he didn't know whether it was true or not, some of the little stories were still quite interesting.

Halfway through the lesson, Wang Yurong saw that some of the students were no longer very focused, some were in a fugue, and some were obviously wandering.

So she knocked on the podium to attract the attention of the students, and then smiled and said, "Students, let's play a little game!" I will say the first half of the ancient poem, and you will take the second half. ”

"Okay." As soon as they heard that they were going to play the game, most of the students immediately showed a lot of interest.

Wang Yurong smiled and thought for a while: "There are three thousand beauties in the harem." ”

Gu Xiaotian slapped the table and said loudly: "The iron pestle can also be sharpened into a needle!" ”

Wang Yurong: "......"

……