Chung Hwa Heavy Industry Workers' Children's School.

It is still in the groping stage.

It is tentatively set as a seven-level system, with four years of primary school and three years of secondary school, with an age of eight for entry and fifteen years for graduation.

After graduating at the age of fifteen, he joined China Heavy Industry for one year of internship, and at the age of sixteen, he decided whether to transfer to the military.

Because it has only been established for a year, the educational situation of the school is very complicated.

For example, in the upper grades, it is mainly through the recruitment of teenagers who can read and write that they become students in the upper grades, rather than through the seven-grade system.

So the curriculum in the upper grades is also very confusing, with both lower and upper grade content.

There is also a great deal of variation in the level of students.

In a word, it's a mess.

In a sixth-level classroom.

On the blackboard, the teacher uses the chalk provided by the factory to write on the blackboard.

"There are things today, I don't know how many they are, the remaining two of the three or three numbers, the remaining three of the five or five numbers, the remaining two of the seven or seven numbers, ask the geometry of the object?"

The students pondered.

Lian Zining, who was sitting in the back row, had already calculated, because Lian Zining had a wide range of knowledge, and he knew where this question came from.

He thinks he is even better than the level of the school teacher.

As a literati, especially Bangyan, Lian Zining even wanted to be eager to try and go on stage to explain in person.

It was precisely because of Lian Zining's firmness that the school opened the back door and allowed Lian Zining to enter the school for observation, of course, this was allowed by the little prince.

The level of teachers is not high, to put it bluntly, the teachers in schools are weak, and the level of teachers varies greatly.

The young teacher, who was stimulated by the bright eyes behind the classroom, timidly offered to invite Mr. Lian Zining to the stage.

Lian Zining took the chalk, and in the matter of preaching, he was not polite at all, and he did not have any of the original human sophistication.

This problem is a kind of Dayan problem to solve, which originates from "things do not know the number" in "Sun Tzu's Sutra". ”

"Qin Jiushao, a famous scholar of the Song Dynasty, made a very comprehensive discussion on the solution of such problems in the "Nine Chapters of the Book of Numbers", and called it the Great Yan Seeking a Technique."

Lian Zining had something to say, said slowly, and then explained the topic while making all the students' thoughts clear.

Compared with young teachers, Lian Zining does belong to the level of crushing in terms of knowledge reserves, not only the detailed method of solving the problem, but also the ideas and origins are clear.

The students in the classroom not only understand the method of solving problems, but also have a deep understanding of this problem-solving method.

If Zhu Gaochi were here, he would say that this is a problem in modern number theory that solves a system of congruent equations.

This set of theories is 554 years earlier than the congruence theory established by the famous Western mathematician Gauss, and is called the "Chinese remainder theorem" by the West.

Any order equation, a system of equations, and a trigonal quadrature are all in the nine chapters of the number book.

The way the ancestors wrote the solution to such problems, if it was written according to the way of later generations, that is:

Rewrite an nth order polynomial f(x)=a[n]x^n+a[n-1]x^(n-1)+L+a[1]x+a[0] as follows:

f(x)=a[n]x^n+a[n-1]x^(n-1))+L+a[1]x+a[0]

=(a[n]x^(n-1)+a[n-1]x^(n-2)+L+a[1])x+a[0]

=((a[n]x^(n-2)+a[n-1]x^(n-3)+L+a[2])x+a[1])x+a[0]=L=(L((a[n]x+a[n-1])x+a[n-2])x+L+a[1])x+a[0]。

When finding the value of the polynomial, first calculate the value of the primary polynomial in the innermost parentheses, i.e., v[1]=a[n]x+a[n-1], and then calculate the value of the polynomial layer by layer from the inside to the outside, that is, v[2]=v[1]x+a[n-2]v[3]=v[2]x+a[n-3]

……

Qin Jiushao, a famous scholar of the Song Dynasty, said in the preface to the "Nine Chapters of the Book of Numbers", "Mathematics can be through the gods and follow life; The small can go through the world, like all things". ”

"The so-called "Divine Knowledge" means to go back and forth between unpredictable things and to perceive the mysteries therein."

"To conform to life is to conform to the nature of things and the laws of their development. In the view of Qin Jiushao, mathematics is not only a tool for solving practical problems, but also should reach the lofty realm of "passing through the gods and obeying life". ”

"You must not only learn this kind of problem-solving thinking, but also understand Qin Jiushao's realm, so that you can go further on the avenue."

"His three-oblique quadrature technique and Qin Jiushao's algorithm, as well as the positive and negative square technique, I have seen it in your books, and you should pre-read it in advance in your private time, which will be very helpful to your study."

In a class, Lian Zining did not explain all the books according to the book, but extended the lecture around the topics in the book.

It broadens the students' knowledge, and the stories about the experiences of the sages make the students so fascinated.

In this way, the time of a class passed unconsciously in the teaching process of Lian Zining and the students.

When the bell rang for the end of class, Lian Zining reacted, reluctantly put down the chalk, and looked at the aggrieved teacher apologetically.

The students also showed reluctant eyes.

Many poor students, even if they are not good at learning, but they also like to listen to Lian Zining's lectures, and the deeds of those sages are like stories, they all love to listen.

Lian Zining stayed at the school for two whole days, and had forgotten his original intention of going to China Heavy Industries, until the officials of Ying Tianfu came to the door.

Their return is due, and they will depart tomorrow.

Lian Zining came to his senses at this time, his face was a little lonely, but he quickly cheered up and recovered.

I began to feel annoyed.

He was delayed at school for two days, and as a result, he forgot to go to China Heavy Industry to have a look, thinking that there was still an afternoon to go and take a rough look.

But he remembered that he still had a lesson in the afternoon.

After hesitating for a long time, he still stayed at the school, finished the last class, and then told the students that he was going back to Yingtianfu.

The students were very reluctant to practice Zining, and Lian Zining smiled, and he didn't know how to say many words.

The knowledge taught by the school, in Lian Zining's view, really delayed the future of the students and missed the science path.

Human energy is limited.

They have delayed too much in other studies, and they will inevitably not be as energetic as others have put in the science and road.

But Lian Zining didn't know.

Times are different.

Only the progress of things can have the development of the times, and the development of the times will feed back the progress of things.

However, when the times are going backwards, it shows that things are also regressing.

Civilization does not necessarily progress, it also regresses.

Because civilization comes from society, and society is made up of people, different people will naturally change whether civilization is progressive or regressive.

The era of the Ming Dynasty was indeed developing, and the civilization level of the Song Dynasty was fully restored in the Ming Dynasty, and even surpassed the Song Dynasty in some industries.

But now there is a different Zhu Gaochi.

He came with the "cheats" he learned from his time.

This cheat can be called the shoulders of the predecessors, he stands on the shoulders of the predecessors, and naturally does things that make the predecessors staggering.

At the pier in Tianjin.

More than a dozen boxes containing parts of the steam engine were loaded onto ships by the coolies of the docks, and the people of Ying Tianfu would take a boat with these boxes and return to Yizhen through the canal.

Yizhen is one of several areas where gate works are being carried out, and will also be the first gate project to use a steam engine.

The officials who were sent off by the Chief Secretary said goodbye to Lian Zining and his party.

The boat started, and on the deck, Lian Zining looked at the dock farther and farther away, and there was a hint of complexity in his expression.

The changes in Peking seem to him to be too powerful.

There seemed to be some kind of big change in it, and although he couldn't recognize it, in the haze, he had a shocking thought.

This kind of change is conducive to civilization, but it is in the hands of the vassal king.

If the vassal king becomes stronger and stronger, what will be the consequences? Taking history as a mirror, the answer is self-evident, and Lian Zining is very worried.

The rebellion of the vassal king has caused too much harm to the country and the people, and Lian Zining is not only lamented by the development of Beiping, but also worried about the harm caused by the changes in Beiping.

Tianjin Overseas, Jinzhou.

Every month, a group of military workers come from Beiping for training, and the origins of these military workers are very mixed.

There are all kinds of factories, there are ordinary workers, there are team leaders, and even stewards.

But they have the same background, that is, the workers who have changed from civilian to military are all from China Heavy Industry.

Meantime.

The military workers who come for training are all workers with good performance, and only after passing the selection can they be qualified to come to Golden State for training.

It was these workers who came to the Golden State for training again.

for a period of three months.

This change has been implemented for half a year, so now people arrive in Jinzhou every month, and every month a group of people complete their training and take a boat back to Beiping at Lushunkou.

"Stand upright!"

"To the right. Line! ”

"Take a break."

"Stand upright!"

On the school ground, more than a dozen phalanxes, under the leadership of elite officers, carried out the drills of the new army.

The composition of these elite officers is also complex.

There are those selected by Beiping, those from Jinzhou, and many generals who were implicated in the Lanyu case and sent to Jinzhou.

There are even a small number of local generals in Liaodong.

King Yan went out of the plug, the daughter of the Guo family became the princess, and Jinzhou was regulated in the Yan Palace.

The prestige of King Yan has indeed increased in Liaodong, and it has increased a lot.

As long as the imperial court suppresses it, or the king of Liao grows up, it is possible to weaken this momentum, and at present.

The sage did not want to suppress the actions of the Yan King, including the actions of the Jin King.

It can even be said that because of the death of King Qin, some of the sages paid more attention to these older sons.

And the King of Liao.

He is too young, has no prestige, and has not proven his talent on the battlefield, so at present, the King of Liao is in front of King Yan, and he abides by courtesy and does not dare to disobey the fourth brother.

On the contrary, because of the existence of the Guo family, the relationship between the Liao Wangfu and the Yan Wangfu is not bad, and the two families have an extra layer of in-law relationship in the brotherly relationship through the Guo family.

Zhao Hong wore a military uniform, and in the middle of the queue, he was promoted to temporary captain to assist in the work of training instructors.

Today is the plan to practice the formation.

After practicing the basic instructions as usual every day, the trained military workers began to receive the bird guns that they had been looking forward to wearing.

Whether it is gunpowder or lead bullet, the supply is open to China Heavy Industries, and everyone can train in a large amount of live ammunition.

This kind of "extravagant" behavior is inconceivable even in the border army.

But it seems to be different.

China Heavy Industries produces gunpowder and bullets, as if it doesn't want money, and will give more if it wants, for fear of not wasting it.

For the first time, the health center in Golden State felt what it means to be "wealthy".

(End of chapter)