The name of primary school is very ancient, the Zhou Dynasty has long had, the beginning does not refer to the primary school of later generations to study, but refers to the study of calligraphy, the children of the Zhou Dynasty entered school, first learned Liujia Liushu (Liujia refers to the six groups of cadres that children use to practice calligraphy with simpler strokes starting with Jia. The six books refer to things, pictograms, shapes and sounds, understandings, transfers, and pretenses), so in the past, the text was called a primary school, and the name of "primary school" was derived from this.

Compared with primary schools, there is also a university called university, and the university, as an institution with higher education functions, can be traced back to the Chengjun and Shangzhen periods of the Five Emperors.

Dong Zhongshu said: "The famous university of the Five Emperors is called Chengjun, and the itch is near." Yu Shun established Shangzhen, which means higher education;

Zheng Xuan: "Shangxu is a university, in the western suburbs of Wangcheng. ”

Later, the eastern order of the Xia Dynasty, the Shang Dynasty's Zhuzong, and the Zhou Dynasty's Biyong were the highest institutions of learning in Beijing at that time.

"The Book of Rites: The Imperial System" records: The primary school is on the left side of the south of the Gonggong, and the university is in the suburbs.

"The Great Dai Li Ji Bao Fu" records: Tie your hair and go to university, learn from the big school, and perform the big festival. ”

"Hanshu Lile Zhi" records: The kings of the ancients all regarded education as their major task, established universities to teach in the country, and set up orders in the city.

Therefore, in ancient times, primary school was used to teach children to read and write and learn the meaning of writing, while the university was a place dedicated to the study of knowledge.

Of course, in order to show that the Confucian school of learning is very high, Confucius's student Zeng Zi wrote a famous work called "University", in which the Confucian essentials of the three outlines and eight purposes of Confucianism were summarized in detail, so that Confucianism slowly developed a set of detailed theories, and these theories were established as a state religion for more than 2,000 years because they were suitable for the emperor's strategy of governing the country after the Han Dynasty, and after the inheritance and development of later generations of Confucian disciples, finally came up with a perverted theory of three outlines and five constants, and then ...... There was no then, the original theory of Old Master Kong was changed beyond recognition, and the thinking of the Chinese was completely imprisoned by Confucianism, especially in the Song Dynasty, after Zhu Xi's rearrangement and commentary, after putting forward the theory of the Three Principles and Five Constants, Confucianism was upgraded again into a complete set of strict systems, becoming the spiritual pillar of consolidating the ruling order of feudal society, and Confucianism also detailed the details of the Chinese's daily speech, behavior, and walking, and even the circle and fork of the husband and wife in the middle of the night. In the Ming Dynasty, even the emperor had strict restrictions on being happy with his concubines, so the emperors of the Ming Dynasty were very unhappy, under the surveillance of a group of Confucian scholars, none of them were willing to go to court, and if they were not right, they would be sprayed by the ministers of the Manchu Dynasty, and the spray became more and more decadent, simply become a carpenter, be a Taoist, and be a turtle with a shrunken head, anyway, the Ming Dynasty is nominally me, but I can't control it, what do you love.

All right! Accidentally pulled away again!

Although the middle-aged people don't know what this Qinghe Town Primary School means, they can roughly guess that this is a school, but in this remote township in a remote mountainous area, it is naturally surprising to be able to see the school.

"Ahem, is the master from the elementary school here?" After the middle-aged man walked in, he asked a group of children kindly.

"Old Chen, Old Chen, someone is looking for you!" A few ten-year-old children turned their heads and shouted at the old man Chen who was standing under the eaves.

Old man Chen looked at this strange middle-aged man dressed as a scribe, and he didn't dare to slack off, so he hurriedly walked down and arched his hand and said, "The old man is Chen Bonian, the professor of Qinghe Town Primary School, may I ask ...... you are?"

"Oh, contemptible Zhao Qing, passing by here and seeing that this place is very lively, I specially came in to take a look, I didn't pass through it in advance, and I asked Old Master Chen to forgive me!" The middle-aged man hurriedly returned the salute.

"Hehe, it's okay, it's okay, today is the market, it's naturally lively, and it's just a group of children playing games!" Old man Chen waved his hand, "There are guests from afar, don't you say, since you are passing through Qinghe Town, you are not busy leaving, the old man naturally wants to entertain one or two, please Lang Jun go to the restaurant with me to rest and drink tea and rest!" ”

After the old man Chen finished speaking, he made a gesture of please.

"Then it's better to be respectful than to obey!" Zhao Qing naturally agreed happily.

Under the leadership of Old Man Chen, Zhao Qing followed to a pergola next to him, where six or seven long wooden tables were placed, and there were also high stools made of tree stumps, neatly arranged in rows.

"If you have a guest from afar, go get some herbal tea to quench your thirst!" Old man Chen was very familiar with the road and ordered the helper of the elementary school cafeteria, and then invited Zhao Qing to sit down, stroked his white beard and said with a smile, "Remote village, poor conditions, please don't be strange to Zhao Langjun!" ”

"Don't dare, don't dare, the old master is serious!" Zhao Qing hurriedly gave up his hand, and after sitting down, he turned his head to look around, his face was full of surprise, and after reading it, he couldn't help but ask: "Old Master, what kind of facilities is this canteen?" What is it for? ”

"The cafeteria, the hall where the eaters gather, is also the place where elementary school children and teachers eat!" Old Master Chen explained proudly.

The name of the cafeteria is easy to understand, and you will know that it is a place to eat when you hear it.

There are more than 20 children in primary school, plus three old masters and Niu Quan, as well as Chen Xu and Niu Dashi, who are too lazy to cook by themselves, and there are more than 20 people who eat on weekdays, but because the food in the canteen tastes better and the dishes are more varied, some villagers in the town occasionally come to eat.

The canteen does not charge money internally, five dollars a meal externally, two taels of coarse corn rice and three dishes and one soup on weekdays, just like the kind of fast food in later generations, and a meal of meat will be served every seven days, although it does not guarantee that every child can eat well and eat well, but it is better than the situation of eating coarse grains and wild vegetables every day to be hungry to the sky, so in this short period of time, the children in primary school have obviously gained weight, and even an old face of Old Master Chen has shown a ruddy color.

In fact, the primary school canteen also has an important function, that is, to entertain merchants and tourists who come and go, and the officials and soldiers who come down from the county to do business will also entertain them here to eat and drink tea when they are hungry, and talk about work by the way.

And Chen Xu also clearly instructed that all merchants and tourists who come and go must be well entertained, and meals and tea must be available at any time.

If you want to build Qinghe Town into a wealthy township, it is definitely not enough to rely on the hardships of more than 600 households in the town, you have to have outsiders and funds, and slowly people from east to west, north and south know Qinghe Town, and the popularity may be able to slowly become active.

Therefore, everyone in the town knows that if someone passes by Qinghe Town to eat and drink, they will be led to the primary school canteen to rest and eat, and Old Master Chen is also one of them, and he has implemented this policy more thoroughly.

The herbal tea was quickly served, and it was an ordinary bamboo cup.

"Zhao Langjun, please!" Old man Chen leisurely took a cup and took a sip of it.

Zhao Qing came from the county seat of Pheasant County, drove for more than an hour, and was already thirsty at this time, after thanking him, he took a sip of the bamboo cup, and the moment the tea was entered, his body couldn't help but be shocked, his face was even more surprised, and he couldn't help but sigh excitedly after taking a few sips: "Old Master, this tea is cool and moisturizing, and there is a slight sweetness and sourness, it is really a magical thing!" ”

"Hehe, herbal tea, just a few kinds of ordinary weeds boiled, when the word magic, but it has the effect of cooling and relieving the heat, this hot summer is the best to quench your thirst, listen to Zhao Langjun's accent is not my Nanyang people's clan, and it is from afar, I don't know if you can tell me the origin?" Old Master Chen remembered Chen Xu's reminder and began to have a family relationship with Zhao Qing again.

"Zhao Qing is a native of Luoyang, I passed by Nanyang a few days ago, and I heard that there are rumors of an immortal disciple appearing in Funiu Mountain, I wonder if the old master has heard of it?" Zhao Qing was naturally very happy to talk to the old man and ask for some news.

"Immortal disciple, let's talk nonsense, the old man has never heard of it!" Old Man Chen shook his head.

"Hehe, old master, don't blame, I'm just hearsay, but I'm just curious, and I'll come by the way to inquire a few words, it seems that it's just a rumor!" Zhao Qing laughed dryly a few times and then drank tea.

If you want to talk about the rumors of the disciples of the Immortal Family, the people in the town really don't know about it.

Ziyunxian tea made a lot of noise in Wancheng, and then with the word of mouth of merchants and tourists, it has now spread almost to all parts of the country, but this news is also spread at most in the high-level circle of Fang family warlocks and businessmen and bureaucrats, in fact, most of the people don't know, even tea is still only consumed by these people, ordinary people don't even know that there is a new kind of tea appearing, and this news is mainly spread in big cities, remote villages to know this news, it is estimated that it will take a few years to go.

Just as the two were drinking tea and chatting, suddenly there was a rattle of "Dangdang Dang Dang" next to him, Zhao Qing turned his head, and saw a middle-aged man in a black house standing at the door of the classroom shaking a small copper bell with his hand.

"Zhao Langjun forgives his sins, Lidian teaches, the old man is going to listen to the class, since he came to Qinghe Town, he is not busy leaving, today is the market is more lively, it doesn't hurt to stay for a few days and then leave, there is a place to stay and eat at night, sit down for a while, and say goodbye!" Old man Chen stood up and bowed his hand, and then walked to the classroom.

Zhao Qing looked at the back of Old Man Chen, drank the herbal tea in his hand and stood up after a few sips, then slowly walked to the corridor outside the classroom, and stood quietly by the window to look in, and in addition to him, several helpers from the elementary school also crowded in front of the window with great interest.

Similar to the elementary school classes in later generations, a group of children noisily rushed to their places to sit down, and the classroom quickly returned to calm after a period of chaos.

Zhao Qing was surprised, the desks in the classroom were not the low desks he usually saw, but the same long high table as Fang Cai's dinner, the stools were also two-foot-high wooden stakes, and the tables were also neatly placed with pen and ink, and some hemp gray paper.

After the children sat down, they rested their hands on the table on their chests, and their little faces were very serious.

Behind the teacher, there was a row of people sitting next to each other, the old master Chen just now and the middle-aged man who rattled the bell were among them, there was a middle-aged woman with a little girl, and two white-bearded old men and a fourteen or fifteen-year-old boy.

Chen Xu hurriedly walked into the classroom from the outside with a few things, and then walked directly to the podium, put the things in his hand before saying with a smile: "Today's market is more busy and lively, this class was originally intended to be put to talk about in my spare time, but Chen Lao said that you can't be slack and lazy in learning, and you can't go thousands of miles without accumulating steps, so I don't dare to beat him......"

"Hahahaha......"

A group of children in the classroom burst into laughter, and naughty boys slapped their desks and applauded.

"Moreover, I guess Chen always wants to eat this egg in my hand in advance!" Chen Xu picked up an egg on the table and added.

"Hahahaha......"

The laughter in the classroom was even worse, and even the people in the back row couldn't help laughing, but Old Man Chen didn't think it was wrong, he stroked his beard with a smile on his face, and Xing'er shouted directly excitedly, "Brother, I also want to eat eggs!" ”

"Don't interfere with my brother's class!" Chen Jiangshi next to him hurriedly covered Xing'er's mouth and scolded in a low voice.

"Hehe, it's okay, it's okay, Lidian's classes are like this, entertaining and teaching, and it's fun!" An old man next to him said with a smile.

"Auntie, don't worry, Brother Xu'er is so indecent in class, but it's fun!" Niu Dashi sat next to Xing'er and quickly explained with a smile.

"Okay, quiet, today I will continue to talk to you about gravity, in the last class, we all know that any substance has weight, then gravity will be generated, almost everything will fall down under the action of gravity after letting go, observe gravity during the last homework after class, Zhang Quandan, tell me, have you ever seen something that does not fall down after letting go?" Chen Xu pointed to a dark and thin boy sitting in the middle.

"Yes, I caught a cicada, let it go, flew away, and it didn't fall!"

"Yes, the bird can't fall either!"

"Unless they rip off their wings!"

"Plucking!"

After Zhang Quandan finished speaking, the children began to shout again, Chen Xu's face was very dark, and his cheeks twitched a few times and said: "It seems that everyone observes very carefully after class, but can cicadas and birds always fly in the sky?" ”

"No, I'll be exhausted!"

"That's right, long wings can indeed fly, but you can't keep flying, you can't fly when you're tired, you will fall off, then this is still gravity at work, the reason why birds and cicadas can fly is that they are inciting their wings to resist gravity, so gravity is everywhere, and because of the existence of gravity, you can make some commonly used tools through the characteristics of gravity, such as scales......" Chen Xu picked up a small scale.

"We can weigh according to the gravity generated by the weight of different substances, this is a simple application of gravity balancing, and today I will show you a very interesting gravity balance experiment!" Chen Xu picked up the two eggs on the table, "Who can put the eggs upright on the table?" ”

“……”

Everyone below looked at each other, the children were all meditating, and even the people in the back row were full of surprise, bowing their heads and muttering to each other.

"Ridian made a mistake, how could the egg stand up?"

"I also think, how can it be round and vertical, and it won't fall down as soon as you let go?"

"If you can put the eggs up, I'll eat them!"

Outside the window, several school helpers were also whispering eagerly, full of disbelief.

And Zhao Qing, who was caught in it, was naturally full of weirdness in his heart, although he had only listened to it for a few minutes, he couldn't understand any gravity substance, but he understood what Chen Xu said, and he never expected that Lidian in Qinghe Town was so young that he didn't look like an adult, so his heart became even more weird.

"Hmph, haven't you seen enough of the magic of Lord Xiaolidian, he said that if you can stand up, you will definitely be able to stand up, and see how you eat the table in a while?" The other helper was obviously Chen Xu's iron fan, and his tone was very dissatisfied.

"Let's try it and see if we can put it up, and the erected Shenshi will be rewarded with an egg!" After Chen Xu finished speaking, the children in the classroom lined up to run to the podium, holding an egg and swinging it around for a long time, but none of them stood up.

"Look, I'll just say it can't be erected, it's absolutely impossible to erect!"

"Hey, Ridian will definitely be able to stand up!" Iron fans are naturally dismissive.

After more than ten minutes of noisy yelling, the children returned to their seats, Chen Xu picked up another egg, shook it back and forth with his hands, and then said with a smile: "Although the egg looks round, as long as you find the gravity balance point, it must be very erect, everyone is optimistic......"

Chen Xu said, carefully and slowly put one end of the egg on the table, and then kept moving slightly with his hand, a full twenty seconds passed, under the gaze of everyone holding their breath, I saw Chen Xu slowly let go of his hand, and then ...... The egg was firmly on the table.

"Wow~"

Suddenly, there was an exclamation both inside and outside the classroom.

"It's amazing, I'll try it!" Niu Dashi couldn't wait to roll up his sleeves and ran to the podium, touched the table lightly, the egg suddenly fell crooked, Chen Xu handed the egg to Niu Dashi with a black face, and the goods began to stand up with Chen Xu's appearance in his hand, but he was busy sweating for a few minutes and still didn't succeed, but accidentally crushed the egg.

"Hey, this ...... Mistakes, mistakes! Niu Dashi looked at Chen Xu's face that was about to drip ink, and ran back with sweat and ashes.

Next, Chen Xu talked about some applications and principles of gravity and balance, and an hour passed in a flash.

"Okay, the content of this lesson ends here, everyone after class to observe the test gravity balance, learn to weigh objects, the use of gravity balance can actually make more accurate weighing tools, there is a tool called balance, can even weigh the weight of a grain of wheat, accurate to the millicent, the next class I will tell you about the phenomenon of light, will do a small hole imaging test......"

Chen Xu packed up the podium and announced the end of class, and the children immediately rushed out of the classroom and rushed to the cafeteria, because it was already time for lunch.