Top student: All my teachers are academic whizzes!

"You want to learn?"

"I'll teach you!"

Upon seeing the words appear on the textbook, Han Chuan's heart skipped a beat, and an indescribable surge of joy instantly welled up inside him.

"Teacher Ge!"

He exclaimed excitedly, "You...you're really willing to teach me!?"

If he had a math genius like that to teach him, how could he not learn these high school concepts?

"Since I'm just idling around anyway, and there's nothing else I can do while reading this book."

Ge Jun said something in a low voice, and then his handwriting appeared.

"You're lucky, kid, you ran into me!"

"When I compiled this set of textbooks, I put in a lot of effort. From basic definitions to logical thinking, from test point traps to the source of problem-solving, I have a thorough understanding of the origins and common mistakes of all knowledge points."

"Teaching you is more than enough!"

Han Chuan nodded vigorously and quickly replied, "Okay!"

"Don't get too excited yet. Your foundation is as bad as an elementary school student's. In all my years of teaching, I've never seen anyone whose foundation is still so poor even though they're in high school!"

"Even if I teach you, it will be very difficult for you to catch up with the other students within a year and a half!"

Ge Jun reverted to his usual sarcastic and disdainful demeanor, his handwriting sharp and forceful as it swept across the paper.

Han Chuan looked up and said earnestly, "I'm not afraid of hardship. As long as I can learn, I'm willing to do anything!"

If you can't endure the hardship of studying, you'll have to endure the hardship of life.

This statement is based on his personal experience!

Ge Jun nodded, revealing new handwriting, and said, "Did you really understand the explanation of the proposition just now? Explain why BCD is wrong."

His gaze fell on the training manual, and Han Chuan nodded, thought for a moment, and then answered.

"B is false because the square of x equals 1, which has two answers: 1 and -1."

"C has no unrestricted number field. Once x and y are negative, it is impossible to take the square root within the real number range, so the conclusion is not valid. There are counterexamples, so it is not a true proposition."

"The same applies to D. If x is negative and y is 0, the square of x will be greater than the square of y, which is also not a true proposition."

As soon as he finished speaking, the words floating on the textbook moved.

"He still has some sense; he's not completely hopeless."

Han Chuan took a deep breath, nodded seriously, and said, "Teacher Ge, shall we start learning again now? Which part should we begin with?"

"Um."

The words floating above the textbook nodded and continued, "As for where to begin..."

"What you need to do is go to the school library or ask your teacher for a set of math textbooks from the first to the third year of junior high school, and start learning junior high school math!"

"Your foundation is too weak; you'll terribly fail if you go straight to high school math. So start with middle school!"

The words in the textbook paused for a moment at this point, before the author added more.

"If you can't even do junior high, then borrow elementary school textbooks and start from there. Make me relearn addition, subtraction, multiplication, and division!"

Looking at the handwriting in the textbook, Han Chuan nodded and said, "Okay!"

He felt no embarrassment or dissatisfaction about starting from elementary school, nor was he impatient; he only had a thirst for knowledge.

.....

When the bell rang for the first evening self-study session, Han Chuan decisively gathered up his "Mathematics Compulsory Course 1" textbook and headed towards the library.

The county's No. 1 Middle School library is located in the Yifu Building, an old building constructed in the 1990s, whose white exterior tiles have turned yellow.

It was during evening self-study time, and there weren't many students in the library.

Han Chuan pushed open the library door, and a smell of old books mixed with dust hit him.

The administrator was a retired teacher surnamed Zhou who wore reading glasses and had been rehired by the school.

"Teacher Zhou, I'd like to borrow a book."

Teacher Zhou glanced at him, then at the clock on the wall: "We close in half an hour. Go find the book you're looking for yourself. Did you bring your library card?"

Han Chuan placed the library card on the table.

His library card was issued when he entered high school, and the photo on it was still the one he took when he graduated from junior high school—a buzz cut, thin, looking like a spirited young man, and only 1.5 meters tall.

Old Zhou picked up the library card, swiped it on the card reader, ignored Han Chuan, and continued to look at the computer while holding his porcelain cup.

The libraries of county high schools are usually not large, but their collections are generally quite diverse.

Old books from the 1980s and textbooks from the early 2000s are crammed together, and some of the labels on the bookshelves are already blurred.

This place not only has various textbooks, but also a variety of supplementary readings and reference books for other subjects.

For example, classic works such as "Dream of the Red Chamber", "Romance of the Three Kingdoms", and "Rural China", as well as novels such as "Ordinary World", "Fortress Besieged", and "Family".

There are even entertainment novels like "Those Things of the Ming Dynasty", "City of Fantasy", and "River Flows to the Sea of ​​Sorrow".

In the past, he would only borrow books from the back of the book to secretly pass the time in class.

Now, Han Chuan found the math section and squatted down to look at the bottom row.

There are several versions of junior high school math textbooks—People's Education Press version, Hunan Education Press version, and Beijing Normal University Press version.

In 2009, the junior high schools in Baling used the Hunan Education Edition textbook. He pulled out a copy of the Hunan Education Edition textbook for the first semester of seventh grade and flipped through it.

It's both new and old; almost no one has ever looked through it.

The title page also bears the inscription "Presented to the Library of Baling County No. 1 Middle School" and is stamped with a red collection seal.

After confirming that it was the book he was looking for, he pulled out the seventh-grade lower semester textbook.

Let's start with the first year of junior high and see if we can understand it.

If he can't learn it in junior high school, then he can only go to Xinhua Bookstore to find elementary school math books.

With a sigh, just as Han Chuan was about to take the books to the library to complete the borrowing process, his eyes suddenly noticed a row of very old books on the bookshelf next to him.

The gold lettering on the spine of one book has faded, but the title can still be faintly discerned.

Elementary Differential Geometry, by Su Buqing.

Upon seeing the familiar name, Han Chuan thought for a moment, then pulled out the book again and placed it on top.

If his cheat ability could be triggered again, he might be able to meet this old man from the last century.

.....

Holding three math books, Han Chuan strode to the lending table and said, "Teacher Zhou, I'd like to borrow these."

Old Zhou glanced at the book, and just as he was about to scan and enter the data into the system, he noticed the contents of the book.

Looking at the junior high school math textbook in front of him, he asked with surprise, "Junior high school math textbook? What do you need this for?"

Han Chuan pursed his lips and said somewhat shyly, "Um... my math foundation isn't very good, so I'd like to review my junior high math knowledge to catch up."

Zhou Yongfeng looked Han Chuan up and down with some surprise, then his gaze fell on "Elementary Differential Geometry".

"Why is there a book on Elementary Differential Geometry here? Can you even understand it?"

Han Chuan: "I want to give it a try. If I don't understand, I'll learn more."

Hearing this, Zhou Yongfeng didn't ask any more questions. He picked up the library card and began scanning the codes on the books one by one: "The borrowing period is 30 days. If you haven't finished reading them, you'll have to return them and have your records scanned again."

Han Chuan nodded, took the book, hugged it, thanked him, and turned to leave.

Zhou Yongfeng, standing behind him, pushed up his reading glasses. He squinted as he watched the boy disappear down the corridor with his books, smiled, and then glanced at the computer screen.

"This little guy is interesting. Has he suddenly become intelligent?"

He had just glanced at the library card's borrowing history on the computer screen; for the past year and a half, he had borrowed novels like "The Three-Body Problem" and "Ice Fantasy".

Although one cannot judge a student's excellence solely based on their borrowing records and the types of books they borrow, Zhou Yongfeng, having been a teacher for so many years, is quite accurate in judging people.

The little guy who just borrowed the book probably isn't doing very well academically; he's the kind of person who's carefree and irresponsible.

This sudden request to borrow a junior high school math textbook raises questions: has he truly become more intelligent and is now serious about learning, or is it just a passing fad?

He actually hoped it would be the former.

It's a pity that, having taught so many students, very few have actually become intelligent enough to start studying properly halfway through.

These people are often excited by external stimuli, and after studying diligently for a day or two, they start to work on it sporadically.

Shaking his head, Old Zhou didn't pay too much attention to these things. He would know what kind of person the little guy was once he returned the book.

Even if it's a junior high school math textbook, it would take a high school student at least a month or two to study it seriously.

If it's returned in two or three days or a week...

Without a doubt, it's ruined!

.....

Carrying the three textbooks back to the classroom, Li Hao, who had been sleeping earlier, was now awake.

Seeing Han Chuan come in carrying a stack of books, Li Hao, who was stretching and yawning, immediately came over and reached out to take them with a grin.

"What novel did you borrow? Can I have a copy?"

For students like them who sit in the back rows, going to the library to find novels to pass the time is a common occurrence.

He and Han Chuan often secretly read novels in class.

Han Chuan put the book on the table.

The three books, the top one with the words "Compulsory Education Textbook: Mathematics, Grade 7, Volume 1" printed on its cover.

Upon seeing these large characters, Li Hao's smile instantly froze on his face.

He paused for two seconds, then reached out and moved the top book aside to look at the second one.

Grade 7, second semester.

Let's look at the third book – Elementary Differential Geometry by Su Buqing.

Li Hao: "???"

He glanced at the books on the desk, then at Han Chuan, and after a long pause, he managed to squeeze out a sentence:

"Did you accept the wrong book?"

"no."

Han Chuan shook his head and sat down.

"That's right?"

Li Hao's eyes widened, and he pointed incredulously at the math textbook on the table, asking, "Then tell me what this is? What is this?! What do you need this thing for?!"

"Borrowing books is for reading, of course," Han Chuan replied casually.

Li Hao's lips twitched slightly. He leaned over and touched the man's forehead, then hesitantly asked, "You don't have a fever?"

Han Chuan: ".."

"Can't I just study properly?"

Upon hearing this, Li Hao paused for a moment, then burst into laughter.

"Hahaha, are you thinking of starting to catch up from middle school? Let me tell you, it's useless, it's too late for you now..."

"There's still time."

Han Chuan spoke without looking up, and casually flipped to the seventh-grade textbook.

Slightly taken aback by those three words, Li Hao watched as Han Chuan opened his textbook and began reading. He asked, "Are you serious?"

"certainly!"

Li Hao stared at him for a long time, as if trying to confirm whether the person in front of him had been replaced by aliens.

Then he suddenly chuckled, shook his head, and pulled a book of martial arts stories from the drawer.

"If you can stick with it for ten days, I'll share my treasured Yoshizawa Akiho collection with you!"

In his opinion, his deskmate must have suddenly lost his mind and started working hard.

However, such efforts will be reduced to nothing in no more than three days.

He himself has done this kind of thing before.

"Keep it for yourself."

Han Chuan responded without looking up and turned to the first page of the textbook.

Akiho Yoshizawa?

What an old-fashioned name.

He'd only watch the latest films; what's the point of these old ones?

.....

Opening the first volume of the first-year junior high school math textbook, and then flipping to "Mathematics Compulsory Course 1," Ge Jun's handwriting was freshly displayed on the supplementary book:

"Got it? Then start watching. Feel free to ask me anything you don't understand."

Han Chuan hummed inwardly and his gaze fell on the first chapter.

Chapter 1: Rational Numbers.

1.1 Positive and negative numbers.

Numbers greater than zero are called positive numbers, and numbers less than zero are called negative numbers. Zero is neither a positive nor a negative number...

Looking at the text in front of him, Han Chuan started to drift off after reading only a few lines.

The last time I saw this content was almost twenty years ago.

He remembers that he was pretty good at math back then. He listened attentively in class and did his homework diligently after class. His math grades were still decent until he finished learning quadratic equations in the second year of junior high school.

But Han Chuan couldn't remember when he started to fall behind.

Is it a quadratic function in the third year of junior high school?

Back in the first semester of his first year of high school, when he was learning sets, he got a score of 61 on a test and then didn't want to study it anymore.

But none of these seem to be real nodes.

Some roads seem to get more and more stable as you walk, but by the time you realize your shoes are covered in mud, it's no longer the same step you took into a hole.

Shaking his head, Han Chuan forcefully banished the reverie from his mind and focused his attention back on the book.

Having lived through the information-intensive internet age of his previous life, it was indeed difficult for him to fully concentrate on learning from scratch.

He was aware of this shortcoming, but he couldn't change it in a short time.

He needs to be patient and persistent in his studies; that requires slow and steady refinement and gradual improvement.

Since he couldn't concentrate while reading silently, he read it aloud in a low voice, forcing himself to read the whole sentence fluently.

Sitting to the side, Li Hao watched a martial arts story for two minutes, listening to Han Chuan's very quiet reading, and suddenly felt a little irritated.

Normally, this noise wouldn't bother him at all while he's reading his novel.

But now, for some reason, the exciting plots and heroic tales of roaming the world with a sword in martial arts stories have suddenly lost their appeal to him.

Putting away the martial arts novel, Li Hao stared at Han Chuan for a while, then suddenly gritted his teeth, stuffed the martial arts novel into the drawer, pulled out a math book from the pile of books, and began to read.

.....