Generally speaking, Lao Lin's math class is so casual.
The teaching day of the summer camp is on the fourth day, and there are still six days before the mid-term elimination exam.
Lin Zhaoxi and Pei Zhi's part-time job in the cafeteria continued, but this time, Hanjuan and Lu Zhihao didn't sleep in anymore, and the boys got up early to work in the cafeteria with them.
However, this loyalty is mainly because of Lao Lin.
—
In the canteen of Oasis Base, Lu Zhihao stood eagerly in front of Lao Lin, expressing his desire to continue the class.
Lao Lin yawned and was mopping the floor.
"It's early in the morning, what class do you have?"
"But Master, we are going to take the mid-term elimination exam soon." Lu Zhihao said.
Lin Zhaoxi was so sleepy that she was still rubbing her eyes, but when she heard him yelling, she suddenly became refreshed: "This is my master, you can't copy me!"
"Then... then what's my name?"
"It's all a false name." Lao Lin turned his head, stroked Lu Zhihao's furry head lovingly, and said, "Just call me Master."
Lu Zhihao: "Master!"
Lao Lin: "Hey~"
Lin Zhaoxi was going to die of anger, she found that since the day when she was in the rain with her father and daughter, Lao Lin had changed.
Lu Zhihao was very happy that Lao Lin accepted him as his apprentice. He was very flattered, hurriedly took out the book, and asked earnestly, "Master, can you teach us geometry today?"
Lao Lin continued mopping the floor: "Why do you suddenly want to learn geometry?"
"Because... because I have an exam today..."
"Then take the test."
"Yes, but I still don't understand a lot, I'm afraid I won't pass the test."
"Why are you afraid you won't pass the test?"
The more Lao Lin asked, the more casual he became, but Lu Zhihao became more and more dizzy.
Lu Zhihao: "Because... because..."
Hanamaki: "Because we can't pass the test, we have to pack up and go home~"
Lao Lin finally stopped and looked back at Hanamaki.
Lao Lin: "Do you think I'm going to ask why I'm afraid to pack it up and go home?"
Hanamaki nodded vigorously a few times.
Lao Lin: "But what does this have to do with me?"
Lin Zhaoxi: "..."
At this time, Lao Lin said earnestly: "Whether you can pass the exam or not has nothing to do with me. Because if I have children, I will tell him that learning itself is a process of happiness enough. While enjoying knowledge, don't be afraid of challenges. The so-called exam is essentially a cruel elimination standard set by the whole society, it can require many people, but if you don’t care, then it is not that important.”
Both Hanajuan and Lu Zhihao were dumbfounded, they looked up at Lao Lin.
Lin Zhaoxi lowered her head instead, her nose was a little sore, his father was really too open-minded.
Lao Lin probably thought that they couldn't understand what he was talking about, curled his lips, and changed his words: "I mean, the main thing is that I don't guarantee that you will pass the exam, so you are still willing to continue to follow me. What is it?"
Without thinking, Lu Zhihao, Hanamaki, and Pei Zhi said in unison: "Yes!"
"What about you, smart little girl?" Lao Lin looked lazily at her.
Lin Zhaoxi: "I think you said that, but..." You can't believe a word you said, "Okay."
"Very good!" Lao Lin said, and stretched out his palm in front of her, "Since everyone is almost willing, then we have reached an agreement?"
The four of them put their hands up subconsciously.
Lao Lin: "Since everyone doesn't have much pursuit and is basically idle and boring, why don't you just learn?"
Everyone started nodding together inexplicably.
Lao Lin asked Lu Zhihao: "Then, kid, what do you want to learn casually?"
Lu Zhihao's whole face was wrinkled, and he felt like saying "Then Master, I want to learn geometry"...
Lao Lin pondered for a moment and said, "Then let's talk about number theory today?"
—
Lin Zhaoxi has been teased by Lao Lin for so many years, and she is basically immune. But Lu Zhihao Hanamaki, an innocent and cute little girl, is still basically in a state of being in a state of whirling.
In fact, later, Lao Lin still talked about geometry. The textbooks he could use were limited. After looking at their schoolbags for a long time, Lao Lin simply took them to tear up the exercise books and continued to draw pictures and do crafts.
There were rattling sounds one after another from the long dining table, the sky had not yet fully lit up, and the aroma of steamed rice from the cafeteria made them immerse themselves in a strange warm and relaxed atmosphere.
Lao Lin called Lu Zhihao by name: "You just talked about geometry, so tell me, what do you think geometry is?"
"Shapes... circles, triangles, squares... something..."
"There are still line segments!" Hanamaki added, "Line segments and points also count."
Lao Lin nodded and smiled: "Have you finished the equilateral triangle I asked you to make just now?"
Each of Lu Zhihao's flower rolls held up one. Lin Chaoxi and Pei Zhi still had to work, so they sneaked over to listen.
"How can you say that every side of the triangle you made is equal?"
"I... I measured it!"
"The amount of light is not enough." Lao Lin was noncommittal, and smiled: "Yesterday we have said that the subject of mathematics is a process from scratch, but not only mathematics, but also natural sciences such as physics, chemistry, and so on. It is a long process of discipline construction. Please note that at that time, all mathematics-related knowledge was relatively fragmented. But at this time, there was a person who combined all fragmented knowledge in a way to establish a foundation for mathematics. A strict system of deductive argumentation, pioneered human civilization, and established a model for all disciplines in later generations, all of which are concentrated in a book called "Elements of Geometry."
"Euclidean!" Hanamaki rushed to answer.
"Yes, please remember this name and this book." Lao Lin said, "In a sense, the modern scientific civilization of mankind is built on the logic system of this book, and its most subtle point lies in its deduction. method, and rigorous argumentation process.” Lao Lin curled his lips, “If someone who studies mathematics tells you not to read "Elements of Geometry" because the geometry it talks about is outdated for modern mathematics, it must be because he didn't read it when he was a child. After reading this book, we have to sympathize with him."
"So lucky children~" Lao Lin asked them to take out their pens, and continued to preach: "Let's take a look at what "Elements of Geometry" actually talks about. First of all, it made 23 definitions at the beginning..."
Pei Zhi put down the tray, sat in front of Lao Lin, and began to listen carefully, but Lin Zhaoxi got up to do other things.
When she was young, she used to sit at the small desk by the window and listen to Lao Lin enthusiastically explaining "Elements of Geometry" to her. Enthusiasm is the most contagious thing. It was the first time she experienced the rigor and beauty of mathematical thinking, and she can still feel the sudden enlightenment and excitement at the moment of certification.
—
The study time in the morning is very short, especially when the lecturer is Lao Lin, two hours seems to pass in the blink of an eye.
When Lu Zhihao and Hanamaki left the cafeteria, they were still unsatisfied. Pei Zhi walked forward with his schoolbag on his back, without saying a word.
There were more and more people on the way to school, and many children were holding books, but among them, even Lu Zhihao, did not hurry up to read.
Hanamaki jumped up and down a few steps, then stepped back, and patted Pei Zhi on the shoulder: "Brother Genius, do you still think mathematics is boring?"
Pei Zhi: "It's been a long time since I was bored."
Lin Zhaoxi pricked up her ears when she heard the words.
"But aren't those things too simple for you?"
"There is no contradiction between simplicity and beauty."
Pei Zhi said so.
Hanajuan was stunned: "Why do you talk like Master?"
"After listening for so long, of course I am like a master."
Hearing this, Lin Zhaoxi felt that something was wrong, why even Pei Zhidu started calling Lao Lin Master, and called it so seriously
"Wait a minute, that's my master!" She protested earnestly.
"Yeah, Master always likes to say those words." Hanamaki and Peizhi walked forward while chatting.
"Master still likes to talk about Brother Juan, hahaha." Lu Zhihao also leaned over, not listening to what she said at all.
Red flowers and green trees sway with the wind, and on the path leading to the teaching building, sunlight leaks through the gaps in the branches.
Looking at the backs of the three of them, Lin Zhaoxi suddenly laughed.
—
Although for them, mathematics learning has become a seemingly "casual learning" process because of the arrival of Lao Lin, it is very different.
But for the other students in the junior high group of the Jin Cup summer camp, the shadow of having to pack up and go home with poor grades still exists.
Teaching building, small and high group classrooms.
When she came to class on the fourth day, Lin Zhaoxi found that the seats in the classroom seemed to have changed.
But the so-called seat change does not mean that someone moved the table, but that the groups that were sitting together changed. Some people sat forward, and some people went to the corner. crack. .
She poked Pei Zhi, pointed to the classroom seat, and asked softly, "Brother Genius?"
Pei Zhi glanced at the classroom and answered concisely: "Students in Group 7 who scored 31 yesterday, students in Group 5 who scored 44, and students in Group 6 who scored 45 were all kicked out of their respective groups and moved to other teams. The place."
Lin Zhaoxi gasped.
Hanamaki cupped her fists at them: "Thank you three classmates for their kindness to me, I will never forget Hanamaki!"
Lu Zhihao pushed him with a puff.
Pei Zhi continued: "The students in the sixth group who scored 76 yesterday went to the third group, and the student who scored 82 in the seventh group went to... the first group..."
When Pei Zhi said this, Lin Zhaoxi shifted his gaze to the first group, which was Zhang Liang's group.
Sure enough, there was a newcomer in the seat in front of Zhang Liang, and that classmate turned his head to chat with Zhang Liang and the others, talking and laughing, looking very gregarious and happy.
Lin Zhaoxi couldn't help but went to see Chen Chengcheng.
Chen Chengcheng was still sitting behind Zhang Liang and was not kicked out of the group, but he kept lying on the table, looking very depressed.
When class was about to start, Zhang Liang and the others chatted about something, and suddenly everyone went to see Chen Chengcheng.
Zhang Liang said something to Chen Chengcheng.
Classmate Chen Chengcheng looked back at her, lowered his head even lower, Lin Zhaoxi frowned.
At this time, Zhang Liang suddenly looked at her with a very provocative look.
Lin Zhaoxi was very baffled, what was she doing, she didn't want to be brave enough to set up a study group for poor students...