The Great Industrial Ming Dynasty Started from Beiping

Chapter 376 Beiping Middle School Mathematics Exam
"The general solution of this math problem, that is, the right triangle on the blackboard, is first of all the application of fractions, the multiplication and division of fractions, and the calculation of the common and the female."

"Although the method of prescribing a formula is not mentioned, it is already used here. Yesterday I asked you to study the prescribing by yourself in the evening. Students who have mastered it well will be able to solve this problem."

First grade of middle school.

The blackboard was full of grids drawn with chalk. A gentleman stood in front of the blackboard with a somewhat dissatisfied tone.

The forty teenagers sitting below, about 13 years old, stared at the blackboard silently.

The children in the front row are writing hard, while the children in the back row are thinking hard.

In elementary school, the atmosphere in the class was quite pleasant, although strict, but they didn't get scolded all day long, but in the two months since they entered middle school, the teenagers no longer smiled.

"Pythagorean shares are multiplied separately, and the prescription is divided."

Mr. pointed at the blackboard with a ruler, and spoke at a slow pace: "That is, multiply the strands of the benchmark and the hook of the shadow by your own value, then add the two squares together, and finally divide by the square."

"Elsewhere, for calculations like the square root of five, its numerical value is represented by the nearest integer plus an odd number."

At this point in the explanation, the husband began to draw a square grid of seven squares in length and width on the blackboard.

Then from the square grid, the third grid is connected to the fourth grid, and the inner square grid is drawn.

"Who remembers which article this picture is from?"

Mr. started the school exam again.

Quite a few children raised their hands, and the master ordered one. The boy stood up and said fluently, "It's the diagram of an arc in "Zhou Bi Suan Jing."

The gentleman nodded, "The answer is correct, please sit down."

The boy sat down proudly.

Although it has only been two months, the gap has widened. Some children can not only keep up with the class, but also learn from the class.

And some teenagers can't keep up with the progress. Compared with the four years of elementary school, the career of middle school has only started for two months. There is already a huge gap.

"The exam starts in the afternoon."

When the bell rang for the end of get out of class, the children wanted to breathe a sigh of relief, but when they heard what the teacher said, they immediately quieted down the class.

The next class is physics and chemistry, and then culture.

"Zhou Chengzhi, it's your father's text."

In Class [-], Grade [-] of middle school, a boy whispered to his deskmate.

Zhou Chengzhi dared not talk to his deskmate.

really.

The teacher called Zhou Chengzhi's deskmate up and scolded him, and then slapped the palm of his hand five times, so that the boy would no longer dare to speak small things in class.

"You are the first batch of full-time students, and you don't have much knowledge, but I believe that with the development of social sciences, you will need to learn more and more knowledge, which will become more and more complicated and deepened."

"You are the happy generation, the most promising generation."

"In such a beautiful era, if you don't hurry up to study and improve your cultural quality, as your husband, I can say responsibly that in the next 20 or 30 years, you will definitely complain, why didn't you study hard in school. "

"What you are sorry for is not your parents, but your own bright future!"

"In order to prevent you from complaining about me in the future, I will definitely use the strictest method to let students who can understand learn more knowledge, and students who don't understand, even if you memorize it by rote, you have to keep it firmly in your heart."

"Have you heard clearly?"

"Mr. Hui, I heard you clearly."

The teenagers didn't dare to be naughty, so they answered sir loudly.

After the cultural class, it was already noon.

The teenagers went to the cafeteria to finish their meal.

Middle school students will go to the cafeteria to eat first, wait for the middle school students to finish eating, and then the elementary school students will turn.

Lunch break in the classroom.

But at this time, unlike elementary school, middle school students are hurrying to review their homework.

The first class in the afternoon is an outdoor class.

Today's lesson is horse riding.

Forty horses are prepared for the school's horse farm, one for each child.

Mr. Wu led the children to ride horses in the racecourse.

There are horse courses in primary schools, so the teenagers ride big horses.

There are accidents when riding a horse.

Especially with so many children in the school, but accidents cannot prevent teaching.

This is what Zhu Gaochi requested.

Zhu Gaochi heard some people's concerns, which aroused his anger.

in later generations.

Some parents actually complained that the school showed the Japanese invasion films to the students, on the grounds that there were some blood-stained clips.

What ignorance this is, what lack of understanding of the world, and what lack of respect for life.

Life is precious.

But while valuing life, it is not the only one.

Just like the appearance of cars, countless people die every year because of cars, but cars are bound to prosper in the world.

After the equestrian class is the military theory class.

at last.

Mr. Mathematics returned to the classroom, holding a stack of tooth-yellow straw papers, and distributed two straw papers to each student.

The teacher wrote the questions on the blackboard, and the students below copied them on straw paper. After copying the questions, the exam began.

"Once upon a time, the Duke of Zhou asked Shang Gao, "I heard that the doctor is very proficient in the art of numbers.Could you please talk about how the ancient Fuxi determined the degrees of the celestial sphere? "

"There is no ladder to climb the sky, and no ruler to measure the earth. So I would like to ask you, where do these numbers come from?"

There are also calculations written on the blackboard.

An eight-foot-high stele is erected on the flat ground, and the shadow is measured in the middle of the day. Among the 24 solar terms, the winter solstice shadow is one foot three feet five inches long, and the shadow length decreases by nine inches and ninety-nine for each solar term thereafter...

To figure out how these numbers come from.

Twenty math problems.

There is no sound in the class, only the rustling sound of charcoal pencils. Some children write like flying, and some children can't write a word for a long time.

The teacher walked between the classrooms, looking at the answers of some teenagers from time to time.

No one dares to copy others, this is the ethos of the school.

"The law of number comes from the circle and square, the circle comes from the square, and the square comes from the moment. The rectangle comes from the multiplication table of the fact that ninety-nine is 81."

"set up."

"Slice a rectangle diagonally so that the width equals three units and the length equals four units. Thus, the length of the diagonal between two opposite corners equals five units."

"Now use this diagonal line as the side length to draw a square, and then surround this square with several half-rectangles similar to the outer half-rectangle to form a square disk."

"Illustration."

"Then the four outer half-rectangles of width three, length four, and diagonal five form two rectangles whose total area equals 24; then subtract these 49 from the total area of ​​the square disk , the remainder 24 is obtained, and the calculation formula is..."

"This method is called 'product moments.'"

On the test paper, the next question is a triangle question.

"The Duke of Zhou sighed and said: "The art of counting is really amazing!I would like to ask again about the principles of applying right triangles. ""

"answer."

"By making a right triangle lie flat on the ground, straight and square projects can be designed with ropes."

"Elevation can be measured by standing a right triangle upright. An inverted right triangle can be used to measure depth, and a flat right triangle can be used to measure distance."

"By turning a right triangle, a circle can be drawn, and by combining several right triangles, a square and a rectangle can be obtained."

……

"Zhou Chengzhi scored 85."

"...95 points, the three students with the highest scores in the class."

"...Fifty points, failed."

"... 45 points, failed."

The teacher had already read the answers of each student, quickly reviewed the test papers, and issued the results in class.

Those with excellent grades are praised, and those with good grades are warned that they need to continue to work hard.

As for the unqualified grades.

All went to the stage to accept punishment, and the ruler beat the palm of the hand.

The teaching atmosphere of the middle school is full of strictness.

These 13-year-old teenagers have been treated as half-adults by the school, and while they are required to develop in an all-round way, everyone tries to keep up with the progress.

This is China Heavy Industry Middle School for Workers and Peasants.

evening.

Zhou Chengzhi returned home with the report card and had to hand it over to his parents for signature. His grades were not bad, and he kept a smile on his face.

What makes him even happier is that his father has time today.

Zhou Tong's fantasies about the future society have been published in miscellaneous newspapers and have caused a huge sensation.

The speculation that Zhou Tong said that there will be a large number of land sales in the future has aroused the condemnation of many people in the society, thinking it is the behavior of a prodigal son.

But there are also many people who support it, thinking that this is in line with the law of development of things.

In short.

Zhou Tong's fame once again spread throughout Beiping, and at the same time opened a door. Many people began to have their own ideas about the speculation and prediction of the future social life model.

In newspapers, there are more articles of this kind appearing.

Zhou Tong took his son's test paper and wanted to give some pointers. After reading the content of the test paper, he signed his name without saying a word and returned it to his son.

"Father, although I got three questions wrong, in fact, only one question was wrong, and my son was careless about the other two questions."

"That's right, you can only improve if you know where you are going wrong, study hard, and ask your mother if the meal is ready."

Zhou Tong sent his son away, fearing that he would not be able to answer in front of his son when his son asked him about the content of the exam, which would be too embarrassing as a father.

After all, Zhou Chengzhi was a teenager and was sent away by his father, so he didn't think about it at all.

When his son left the room, Zhou Tong shook his head helplessly.

"What is taught in physics and chemistry class is full of incomprehensible things." Zhou Tong complained quite a bit, feeling that he was inferior in this respect.

The literati were just not convinced, and instead scolded the physics and chemistry class.

After the beginning of spring in the 30th year of Hongwu in Beiping society, when the whole society was making great strides, Yan Dun, the chief secretary and chief envoy, found Zhu Gaochi.

"I may not be able to stay in Peiping for long."

When Zhu Gaochi heard Yan Dun's words, his face showed boredom, "My father went to Yingtian Mansion, and he didn't stop even at the end of the year. It's really too compelling."

"Ugh."

Yan blunt sighed.

For this, he has nothing to say.

(End of this chapter)