Guan Ning is twenty-eight years old this year, and together with Hua Xin and Bing Yuan, he is known as "One Dragon".
In Qingzhou, he is a well-known celebrity.
However, the current scope of fame is only in Qingzhou. Compared with Zheng Xuan, it is still far behind.
So he was hired by Chen Mu as a teacher at Taishan Academy, teaching students together with Bing Yuan and Wang Lie. Mainly Guan Ning taught, and Bing Yuan and Wang Lie took turns teaching.
There are more than thirty students in Taishan Academy, divided into large classes and small classes, including twenty-four students in the large class and eleven students in the small class, for a total of thirty-five students.
Guan Ning taught the large class, Bing Yuan and Wang Lie took turns teaching the small class, and Chen Muquan taught.
The specific teaching arrangements are as follows. For example, this morning, Guan Ning will teach Confucianism in the large class, and Chen Mu will teach New Studies in the small class.
In the afternoon, the large class was taught by Chen Mu, and the small class was taught by Bing Yuan or Wang Lie.
After school in the afternoon, there is a martial arts class.
The Confucian scholars of the Han Dynasty were not incompetent and showy. They were all fierce men who dared to go to the battlefield and play with real guys. The six arts of Confucianism, martial arts and archery, are not divided into different schools. Not only must they learn martial arts, but they must also learn bow and arrow.
This kind of course arrangement is actually a little trick played by Chen Mu.
Guan Ning and the others didn't know what Chen Mu wanted to teach. They thought they would teach Confucianism like them. They had asked Chen Mu before. Guan Ning planned to teach "The Analects of Confucius", Bing Yuan taught "Ji Jiu Zhang", and Wang Lie taught "Cang Jie Pian".
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Among these three books, "The Analects of Confucius" is relatively profound. The reason is that Guan Ning teaches a large class, and students between the ages of 8 and 12 are generally able to read and write, so it is time to teach scriptures.
Students in small classes mainly need enlightenment books. The enlightenment books in the Han Dynasty mainly include "Ji Jiu Zhang" and "Cang Jie Pian".
So if Chen Mu also teaches these three things, they are afraid of course conflicts.
Chen Mu then said that he planned to teach mathematics instead of Confucianism, dispelling their fear of duplication of courses.
Mathematics is one of the Six Arts of Confucianism. It is not a heresy, so there is no problem in teaching this course.
Did you know that in Taishan Academy, there are not only math classes? There are also martial arts classes, etiquette classes, horse riding classes, archery classes, prophecy classes, orpiment classes, as well as music classes and calligraphy classes.
In comparison, the courses at Taishan Academy are much fewer.
After all, they are primary school students. Even the martial arts classes are just for physical fitness. They have to wait until they go to Taishan Academy before they can touch swords, guns and sticks.
It is worth mentioning that the teacher of the martial arts class is Hua Tuo, who teaches students Wuqinxi.
There are rumors that Hua Tuo is an official fan? In fact, he is not.
Because Chen Deng's father, Chen Gui, once planned to give Hua Tuo a filial piety and integrity? But Hua Tuo did not accept it. It can be seen that the statement of Hua Tuo's official fans is nonsense.
The reason why Hua Tuo was willing to come to Qi was because he really liked practicing medicine and often hung pots to save the world. And he was also a scholar? He admired Zheng Xuan very much? So he accepted Chen Mu's invitation and came to Taishan Academy to be a teacher for two or three years, teaching students medical skills.
Some people may wonder, wasn’t the position of doctors in ancient times very low?
Why can Hua Tuo teach at a university?
But in fact, doctors have not been a lowly profession since ancient times? Even when they were later divided into nine ranks, doctors were still in the ninth rank? They were only ranked below the scholars, so their status was not low.
Although the status of doctors in the Han Dynasty was much worse than that of the pre-Qin Dynasty, it was not much different.
Among the mainstream books at that time, there was a talk about Yuci Fang Technique, which included medical skills and classic prescriptions. It was not surprising at this time that Zheng Xuan himself also learned Yuci Fang Technique.
For example, Zhang Ji, also known as Zhang Zhongjing, as the governor of Changsha, still treated illnesses and saved people.
Therefore, there was no problem for Hua Tuo to teach medicine.
On the second day of school, formal classes began.
According to the course schedule, the first class in the morning was for Guan Ning to teach the large class and Chen Mu to teach the small class.
Because the children are young, they not only need teachers, but also maids to keep an eye on them at all times to prevent them from getting naughty and getting lost.
Without their parents by their side and in a strange environment, the children were all extremely cautious and sat on their knees.
Chen Mu sat on the main seat and looked down with a smile.
There are eleven students, divided into three rows, each row has four people, and the last row has three people.
The first row, from left to right, is Lu Yi, the grandson of Lu Kang, the prefect of Le'an, Jiang Huai, the grandson of Jiang Pei, the prime minister of the East China Sea, Huang Qi, the youngest son of Huang Yun, a famous scholar in Jizhou, the deceased brother of Kong Rong of Lu, and Kong Bao, the grandson of Kong Bao, a famous scholar in Yanzhou.
Check.
The second row from left to right is Zhuge Liang, the son of Zhuge Gui, the Prime Minister of Taishan County, Wang Xiang, the son of Wang Rong, a famous scholar in Xuzhou, Yao Bo, the son of Yao Gong, the Prime Minister of Ganling, and Liao Tao, the grandson of Liao Tong, a famous scholar from Hejian.
The last row from left to right are Zhang Jun, son of Zhang Chu, a disciple of Zheng Xuan, and Chen Zhong and Chen Shao, nephews of Chen Ji, the prefect of Le'an.
This is ranked according to age.
Four-year-old Lu Yi is the youngest, and seven-year-old Chen Shao is the oldest.
Everyone here is either the descendant of a famous family or the descendant of the prefect and prime minister. They all valued Zheng Xuan's reputation and asked to come in through connections.
In fact, with Zheng Xuan as the foundation, Taishan Academy was rushing for people to come in.
Jizhou, Xuzhou and Yanzhou are the three states closest to Qingzhou. Many families who are not famous now but will be famous in the future have sent people to inquire.
For example, the Zhang family in Pengcheng, Xuzhou, that is, Zhang Zhao's family, wanted to send a student in.
But they were simply not qualified and were initially rejected by Wu Kuang, who was in charge of admissions.
After Chen Mu heard about it, he allowed Zhang Zhao's son, nine-year-old Zhang Cheng, to enroll in school. He is now in the senior class.
Chen Gui's son and Chen Deng's younger brother Chen Ying were also there.
So among them, Zhuge Liang is actually the worst one according to his family background.
But little Zhuge Liang was handsome, smart and cute, and his eyes seemed to be full of aura. The more Chen Mu looked at him, the more he liked him.
"What I want to teach you today is not to read or read, nor to read literary classics, but to teach you numeracy."
Chen Mu looked at the students below and spoke slowly.
The students sat upright one by one and listened carefully.
Anyone who can come to class has a solid foundation.
If scholars in the Han Dynasty had the conditions to study, they usually started training them from a very young age.
Cao Chong was able to weigh elephants at the age of five or six, Zheng Xuan was proficient in numerology at the age of eight or nine, and he was familiar with the Five Confucian Classics at the age of twelve or thirteen.
Although they are all examples of child prodigies, before you can become a child prodigy, you must first study. If you don't study, you won't be able to become a child prodigy.
So students all know what numerology is and what its concepts are.
"But what I want to teach you today is not math in the traditional sense, because those maths are too inconvenient. What I want to teach you is another more convenient knowledge."
Chen Mu stood up and said to everyone: "Everyone, get up and come to the yard with me."
The students didn't know why, but they stood up obediently.
Chen Mu led everyone out and walked to the courtyard outside the small classroom. Although Taishan Academy was not as small as the Academy, it was not too small. The large class and small class were separated, and the small class classroom had an independent courtyard.
I saw a huge apricot tree in the yard that blocked out the sky and the sun. The bamboo branches outside the yard penetrated into the wall, fluttering slightly in the breeze and making a whistling sound.
The spring sunshine shines warmly, and there is a piece of sand in the yard. The crystal sand reflects white light under the light.
"What I want to teach you today is a new kind of mathematics, which I call mathematics."
Chen Mu stood by the sand table, holding a long stick, and drew the character "one" on the sand table: "Do you know what this is?"
"one."
someone answered.
"right."
Chen Mu nodded, wrote another "1" and said, "This is also a 1."
"Master, that's not right. This is just a vertical line. Where is the one?"
Someone raised an objection.
Chen Mu said: "In mathematics, it represents "one", do you understand?"
"Understood."
Everyone answered in unison.
"Then this is two."
Chen Mu wrote another 2. The lesson to be taught today is not addition, subtraction, multiplication and division, but teaching students Arabic numerals first.
At this point, we have to admit that Arabic numerals are indeed very useful. This is an indefensible fact. If we want to make scientific progress in the future, its existence is indispensable.
The students are very smart, and they have learned everything from 0 to 9 in just a short time.
The formal teaching session now begins.
Chen Mu asked the students: "What math skills have you learned before?"
""Zhou Bi Suan Jing"."
"Nine Chapters of Arithmetic."
""Xu Shang's Arithmetic"."
""Du Zhong's Arithmetic"."
The students answered one by one that arithmetic was a must-learn course for scholars in the Han Dynasty in primary school. Zheng Xuan, for example, had been proficient in arithmetic since he was a child, and then learned scriptures.
So the students here are no strangers to mathematics.
Chen Mu nodded and said: "Since everyone has learned arithmetic, let me ask you a question. If someone now has twenty-three acres of land, and he buys another fifteen acres, how many acres does he have now?"
Everyone took out their abacus, which was a counting tool before the abacus came out, with sticks of different lengths representing numbers.
For example, the shorter one is 1, the longer one is 2, the longer one is 3, and so on.
When calculating a relatively large number, you can represent different numbers by placing the counters differently. For example, two vertical wooden sticks represent 2, two horizontal wooden sticks represent 20, and two horizontal wooden sticks below represent 20.
One vertical one represents 200, and another vertical one represents 2000.
Although this was very convenient for the ancients, for Chen Mu, it was still a rather backward algorithm. If you wanted to calculate a very large number, such as 635436-253554, it would probably take a long time to calculate it.
Fortunately, the question Chen Mu asked was not abnormal, it was only ten digits. After a while, someone who could calculate quickly raised his hand and said: "Master, it is thirty-eight acres."
"very good."
Chen Mu added: "Then let me ask the question of "Nine Chapters of Arithmetic". The land is eight steps wide. From six steps, what is the geometry of the land?"
Everyone started calculating again with chips.
This is a multiplication problem, and for the current algorithm, it is the addition of eight sixes, which is deduced into addition.
Soon someone else said: "The number of steps multiplied to get the accumulated steps, the ground is forty-eight steps."
"Um."
Chen Mu said: "Now I will teach you how to use new mathematics to calculate addition, subtraction, multiplication and division problems."
After that, he started to draw 1.2.3.4.5.6.7.8.9 on the sand table.
Then he drew a cross and a letter, which represented addition and subtraction.
× and ? represent multiplication and division.
Write 2315 on it and say to the students: "Now we calculate the first question like this, how do you think it should be calculated?"
Little Zhuge Liang thought for a while and said: "21,35?"
"clever."
Chen Mu praised: "In the end, we got 38. Isn't it much faster than using a calculator?"
Everyone's eyes lit up. They didn't expect that math could be so simple. If you follow the teacher's method and learn it, you won't need to calculate in the future. You can calculate it in your head. This is more convenient than calculating.
too much.
Seeing everyone's sudden interest, Chen Mu smiled.
Whether it is physics or chemistry, mathematics is the foundation of everything.
Why are there no physics and chemistry classes in primary schools, but only in junior high schools?
Because you haven't learned mathematics well, you can't even calculate the most basic formulas.
Therefore, the art of numerology is the foundation of everything.
The sprouting of science dozens or hundreds of years from now will also start from this little mathematical problem today.