Lin Chaoxi also packed her things, stuffing her pencil case, textbooks, and exercise books into her schoolbag. Suddenly, she was surrounded by several children in front of her desk.

"Lin Zhaoxi, how did you learn it?"

"Can I see what you organized?"

"Has the teacher already distributed this?" Lin Chaoxi held up the paper that Jie Ran had just found.

"We are talking about the '2' that we will be testing today."

"You are the best in organizing knowledge points in the class."

"Please lend it to us." The little girl begged.

The children spoke one after another in rapid succession. Lin Chaoxi looked around and realized that these children seemed to be from Group 6. Their grades were above average, so he wanted to give it a try.

"I...I haven't finished tidying up yet..." She was embarrassed.

"The exam will be at 5:30." The children standing in front of her desk were shocked.

"No...sorry..."

"Can you show it to us once you've finished tidying it up?"

"Yes, yes, we line up first, first in line!"

"Huh?"

"No, no, I'm obviously the first!" Huajuan shouted from behind.

Lin Zhaoxi turned around and asked the curly-haired kid in the back seat, "Do you want to see it too?"

"Yes, if I memorize all of them, I can at least get a few more points!" Huajuan said ambitiously.

——

Now, Lin Chaoxi had no time to eat lunch at all.

As soon as she entered the reading room, she rushed to the bookshelf and started looking for teaching materials. But what was even more impressive than yesterday was that she was followed by several little followers.

"What book are you looking for?"

"Would you like us to help you find it?"

"Are you thirsty? Let me pour you some water..."

The classmates were very active and provided her with various kinds of help.

She pulled out a set of textbooks from the bookshelf, and a diligent little hand was ready to take it. The noises of many children gathered together became even noisier, and many students who had already started reviewing cast dissatisfied glances at her.

Lin Chaoxi was extremely embarrassed: "No, no, I can do it myself."

She pointed to the empty table of Group 6 and whispered, "Please go to your seats. I'll be quick!"

——

Spreading out her books and textbooks, Lin Chaoxi began to write furiously. Now she felt like she was reviewing desperately before a college final exam.

And she clearly seems to be in elementary school?

There was no time to think about it anymore. Her fingers crossed the chapter titles in the textbook. Yesterday's focus was on numbers, and today's test points were all about calculations, including all quick and clever calculations, comparisons, estimations, and basic factorization. In addition, today there were follow-up application questions on the content sorted out yesterday, such as the principle of inclusion and exclusion, the principle of drawers, the principle of addition and multiplication, coloring problems, etc.

In fact, the more she sorted out the books, the more she felt that it was not easy for children to complete this task in a short time. If you open the book, you will find that you have definitely done the math problems under each noun, but if you close the book and only look at the nouns, they become completely unfamiliar content.

Because our learning of mathematics seems to be always fragmented, learning a little bit of this and a little bit of that as the grade increases. We learn some formulas and theorems, the teacher explains the proofs, and you learn to use these formulas to solve problems, and so on. Overall, it is quite comprehensive, but we rarely look back from a comprehensive perspective to see what we have learned.

But these are relatively simple for her. How did Lao Lin make her remember these?

Lin Zhaoxi rubbed the tip of his pencil and continued writing...

——

After an unknown amount of time, she finally finished writing the last stroke. She pulled herself out of the textbook, threw away her pencil, and stretched her back.

"Where's Pei Zhi?" The seat opposite her was empty.

"Let's go buy some snacks!" Huajuan said, "We haven't had lunch yet." He said this and raised his hand towards the door.

Pei Zhi just came back carrying a plastic bag.

Only then did Lin Chaoxi think of looking at the clock on the wall. It was already half past two. No wonder she was so hungry that her stomach ached.

"Shall we go outside?" she said as she handed the sorted exercise book to Hanamaki.

Huajuan took it and quietly poked Lu Zhihao's direction with the tip of the pencil.

"The integer powers with a base of 10 are exactly the digits of a decimal number...", "The binary number system uses the two digits 0 and 1, and adopts the method of 'add one every two'..." Xiao Lu was mumbling to himself and reciting something, so I didn't hear him at all.

Lin Chaoxi felt something was wrong after hearing two sentences. He gently pushed Lu Zhihao and said, "Class monitor, this content was already tested yesterday. What we will be tested on today are calculation problems and application questions of yesterday's counting problems."

Lu Zhihao looked up blankly: "Ah?"

"The decimal and binary ones were available yesterday."

Upon hearing this, Lu Zhihao quickly flipped through two pages of the textbook, checked the table of contents, and then hurriedly tried to revise the table he had prepared.

Lin Chaoxi winked at Huajuan, who pushed the exercise book she had just spent half a day organizing over to him: "Let's just copy the standard answers!"

Lu Zhihao was very stubborn: "The teacher said that this thing needs to be understood by yourself and become your own, so that it will be useful."

But if you just rely on your own understanding without any help, you won't have enough time. Lin Chaoxi wanted to say this, but it would hurt Lu Zhihao's self-esteem, so he had to change his words: "We are a team, we need to help each other!"

"Yeah, wow, there are more questions after this one?" Was Huajuan surprised?

"Yes, I have picked out a very typical and simple question for each little knowledge point, so that you can know what the content is about."

Lin Chaoxi was helpless, because the children were always most familiar with the questions.

"Great! Lao Lu is coming and will have some snacks later. You can sit in Pei Zhi's seat. He doesn't need to read anyway!" Hua Juan said.

——

Outside the window, the sky darkened to an indigo color, and the flourishing aquatic plants swayed in the wind. A circle of lonely street lights lit up on the shore, but no matter how quiet the scenery on the waterfront was, it was not as quiet as the reading room.

Very tired. Very tired.

This was the unanimous reaction of all the children after the exam ended at 5:30 pm the next day. Many of them had shaking hands when they handed in their papers.

Lin Chaoxi picked up the test paper and handed it to Jie Ran.

Xie Ranchong blinked at her and said, "Are you going to get first place again?"

This joke did nothing to make her feel better.

Lu Zhihao sat at his seat, his head buried in his arms, very quiet. On the contrary, Huajuan held a pen in his mouth, put his hands behind his head, and began to shake his legs.

"I'm... I'm sorry, the example I chose was too simple." Lin Chaoxi was very sorry.

This afternoon, she has been leading Huajuan and Lu Zhihao to analyze knowledge points, looking at the simplest questions with them, and understanding what those nouns and mathematical contents represent. She has given up her previous view that elementary school students cannot teach elementary school students because every other group is doing this.

She spoke very seriously, and the whole afternoon passed by unknowingly. When she got the test paper, she found that the difficulty of the questions was completely different from the example questions she had chosen. She was also very unsure about two questions, and could even say that she got them 100% wrong.

But what made her most sad was not this, but that she had wasted an entire afternoon with Lu Zhihao and Huajuan in vain.

"No, it's because my foundation is too poor." Lu Zhihao raised his head and didn't cry, but he seemed to be holding back something. "I just don't have a good brain. I can't think of what to do."

"No!" Lin Zhaoxi interrupted him quickly.

"You and Pei Zhidu would. You are smart, but I am really stupid." Lu Zhihao tapped his head twice with a pen.

Lin Chaoxi glanced at Pei Zhi and wanted to say that he was the only one who was truly smart. I just studied a few more years than you and had a good father.

"Okay, Lao Lu!" Hua Juan grabbed his neck and said, "If you don't have a good brain, then am I a big stupid pig?"

"That's not what I meant!" Lu Zhihao hurriedly explained, "I just think this method of learning is too advanced and not suitable for me. I'll just keep doing my questions. The more I do, the more I'll understand."

Hua Juan nodded, looked over, and said casually, "I really think math is boring, and I can't learn it. Anyway, when the time comes, I will definitely quit. If Lao Lu's grades are not good, he should come with me. You and Pei Zhi must be two people!"

…

Night, dormitory building No. 3.

If the living room last night was still filled with lively discussion, now it has become a grave of learning.

Lin Chaoxi didn't know whether she used the right adjective, because it was very likely that the atmosphere in two days would be more depressing than it was now, but she couldn't find a more appropriate adjective.

No one spoke. The only sounds in the living room were the flipping of pages and the rustling of handwriting, like silkworms eating mulberry leaves.

Lu Zhihao and other children from the same group squeezed around several small dining tables in the living room and worked hard on their homework.

In front of the Lego table, which was originally bustling with activity, Huajuan was the only one left, playing with Lego bricks out of boredom. He pushed the colorful plastic pieces higher and higher, and kept adding strange branches to them, turning the toy in his hand into a huge and twisted monster.

The curly kid's face looked bouncy under the light, and his curly hair was flying wildly.

Pei Zhi clearly said that he was still very enthusiastic about memorizing the lessons last night, but a test result plus an even more difficult test turned him into the one who has no interest in math at all.

Lin Chaoxi walked over, holding an exercise book in her hand, which contained the knowledge points she had sorted out on the third day before the reading room closed.

Before she could say anything, Huajuan stretched out her hand diagonally to take the notebook.

"Huh?" Lin Zhaoxi was surprised. "Do you still want to learn?"

"At least I'll finish memorizing it first, and with your secret skills, I can at least get 20 points tomorrow!" Huajuan smiled.

Looking at the child's innocent light brown eyes, Lin Chaoxi felt a little reluctant to hand over the things she had sorted out.

What is she doing?

It seems that for the sake of group honor, the child is forced to memorize something she has no interest in. This is obviously not how mathematics learning should be done.

But Lin Chaoxi couldn't tell what should happen.

——

Pei Zhi sat in his special seat and played chess instead of reading.

He spent several days and should have figured out the solution with only one chess piece left in the middle, but he did not stop and continued playing.

Lin Chaoxi noticed that when Pei Zhi was reading in the reading room, he would roughly read the extended junior high school content, and then continue to study his Kongming chess. Sometimes, he would even go to the bookshelf of the senior group to borrow math books related to chess games, but he didn't quite understand where the part he wanted to study belonged, so he often took some very difficult content, attracting the attention of high school students.

The time is 9:40 in the evening. In a little while, the dormitory manager will come and shoo us back to bed.

Looking at everything in front of her, Lin Chaoxi held the IC phone card in her hand. The public telephone in the dormitory building was hung under the clock in the living room, but the room was so quiet that no matter what she said, these children would hear it clearly.

In short, it’s not good for other children to hear it.

The night was getting dark outside. She gritted her teeth and rushed out of the house. In her memory, there was a public telephone booth a little further away.