Today is Yu Zehai's first class.

In fact, in addition to Zhou Xiaohui, Liu Wenwen, Mo Guiyu, Xiong Kaishan and Hou Liang, Yu Zehai and He Bingbing are also on the list. It's just that Yu Zehai teaches natural sciences, while He Bingbing teaches ideological and moral subjects.

Computer information technology, natural science, ideology and morality, etc., are public courses offered by the school in grades 3 to 6, while music, art, physical education, and other courses are compulsory courses in grades 1 to 6, just like Chinese and mathematics.

At this time, in the multimedia classroom of the library, nearly 70 students from grades 3 to 6 were already sitting upright, and even among these students, there were some subject teachers and villagers who rushed to hear the news. On the one hand, they came to cheer for Yu Zehai, but more out of curiosity, they were curious about what Yu Zehai wanted to teach these children.

Yu Zehai's gaze swept over the faces of everyone in the audience, and said with a smile: "Students, let's start class." But before we get into class, let's talk about what natural sciences are, and have any of your classmates volunteered to stand up and answer this question?"

"Teacher, the so-called natural science is a discipline that studies and observes the laws of natural change. ”

A chubby little boy stood up and said.

"Not bad!"

Yu Zehai motioned for the other party to sit down, and said with a smile: "Yu Wentao's answer is very accurate, the so-called natural science is a discipline that studies the laws of natural change. For example, why does the apple fall to the ground instead of falling to the sky? Why does the sun rise in the east and set in the west? Why does the river flow downward? Why is the moon sometimes round and sometimes curved? Why is there sunny and rainy days? Why do people get sick or even die? Why do peasant uncles plant melons and get melons, and why do they plant beans and get beans and get beans......

"All of these belong to the realm of natural science. ”

"If you still don't understand, then I'll give you a very simple example. Yu Zehai picked up a bottle of mineral water from the podium and said, "This is water, which everyone must be very familiar with." As we all know, whether it is ice water, cold water, warm water, boiled water, etc., as long as it is water, human beings can drink it directly, but why do our ancestors, our parents, and our teachers repeatedly emphasize that we should drink boiled water and not cold water?"

"Teacher, I know! Drinking cold water will make you sick and get roundworms in your stomach. ”

Without waiting for Yu Zehai's words to fall, Yu Wenqiao hurriedly raised his hand and stood up, and said in a fast tone.

"Correct!"

Yu Zehai pressed his hand and motioned for the other party to sit down, and said: "So, why do you get sick after drinking cold water? That's because in this raw water, there are a large number of bacteria and microorganisms, as long as the cold water is boiled and boiled, the bacteria in the water can be killed as much as possible, so that we will not get sick after drinking it into the stomach." ”

"In addition, if we often run outside, especially in the deep mountains and old forests, if we encounter a small stream, what should we do when we are thirsty at this time? ”

"Any idea why?"

"Because the water in the pool is 'stagnant water'. Stagnant water flows slowly, or even does not flow at all, so it is rich in a large number of bacteria and microorganisms, left for a long time, under the action of these microorganisms and bacteria, it will deteriorate, it will stink, if you don't believe it, you can go home and find a crockpot with some water and put it for ten days and eight days, then you will know what is going on. ”

"And the water in the turbulent rapids is 'living water'. Because turbulent rapids are not suitable for the survival of bacteria and microorganisms, there are much fewer bacteria and microorganisms in living water than in stagnant water. Hearing this, do you understand?"

"Understood!"

The crowd shouted in unison.

"Let's get back to the point, let's move on to the natural sciences. ”

Yu Zehai smiled slightly and said: "After my explanation above, you should have a very general concept of natural science, natural science, which includes basic sciences such as physics, chemistry, biology, and astronomy, as well as applied sciences such as medicine, agricultural science, meteorological science, and materials science, is the summary of our practical experience in transforming nature, that is, the experience of production struggle!"

In other words, what we see and hear, including everything we are using at the moment, falls under the realm of natural science. ”

"Therefore, in this class, I will just explain and describe to you what natural science is, and in the future, we will not only be limited to classrooms and campuses, but I will lead you up the mountain, down the river, to the fields, to the roadside, to the factory floor...... Even go to your home to lead everyone to know nature, understand nature, learn and master the various laws of nature. ”

With the opening of courses such as physical education, computer science, natural science, and ideology and morality, the appearance and atmosphere of the whole school, compared with the previous lifeless and rigid teaching, can be regarded as a complete change, and the children in the village no longer feel that attending classes is a very uncomfortable and painful thing, on the contrary, they are more fun.

As long as you complete the homework assigned by the teacher, you can go to the playground to play ball, go to the library to read and study, and go to the computer room to play with the computer......

As a result, a very strange phenomenon soon appeared in the eyes of the villagers. In the past, they always had to pay attention to the situation in the village from time to time, and the purpose was very simple, that is, to see if any children had skipped school to play. In order to better supervise the children, all the villagers formed a united front to supervise and cooperate with each other. But despite this, there are still many naughty and mischievous children who commit crimes against the wind. I can't help it, because the school is so boring for these kids who don't understand.

And among them, Yu Zehai was the most when he was young.

Without him!

At an age when there is little to do, you don't know why you want to learn scientific and cultural knowledge, and if you can't enlighten the law, it will often only backfire.

Many times, they will see learning as a responsibility, a burden, and a drag...... I don't know the purpose and importance of learning, I don't have any interest in learning and desire to explore, after all, children are just the age of childhood, compared with play, who wants to delve into and explore those boring cultural knowledge?

When I grew older and gradually entered the senior grade, with the maturity of my mind, I gradually understood the importance of knowledge, so I immersed myself in hard study and caught up.

This is a late bloomer!

Of course, most of them will feel sorry for themselves and be at a loss for everyone.

This is the difference between mediocrity and genius!

In just a few days, not only did they not see their children skipping class at all, but these little guys basically turned around and ran to school after eating and throwing away their bowls. At first, some parents didn't believe that their children were going to school, so some parents secretly followed, wanting to see where they were going and what they were doing.

But.

What is strange to the adults in these villages is that the children really run to school. You know, it's not school time, it's the exact opposite. So, the curious adults also secretly followed into the school.

Boy!

Even though it was school day, the school was still very lively. Self-study in the classroom, reading books in the library, learning computers in the computer room, and playing ball on the playground...... Not to mention table tennis and badminton, especially basketball and football, the enthusiasm and excitement of the group confrontation, the onlookers all applauded......

Soon, everyone understood.

Now there are more subjects on offer, not only Chinese and mathematics. Although, there are a lot of things they don't quite understand, especially computers, etc., but one thing they know, although these babies are doing all kinds of things, but this is much better than skipping class.

As Yu Zehai said, children are the hope of their parents, the future of the family, and the future of the whole village, so when they saw the new look, not only the children in the school became lively, but the entire Yujiaao village became ecstatic.

Seeing that everything was developing in the direction he envisioned, and the villagers were very appreciative and supportive, Yu Zehai was completely relieved.

Yu Zehai's classes are very few, and they are still open classes in senior grades, so it stands to reason that as long as he gets off to a good start, everything can run normally, and he doesn't have to worry about anything at all. It's just that Yu Zehai doesn't plan to pay attention to the messy things outside, unless he needs to come forward when he encounters something that can't be solved.

The rest of my life is half a day free.

Hiding in the sacred pure land of the village primary school is inertia, but it is more of a responsibility, a kind of remembrance, and a kind of hope.

this day.

Yu Zehai came to the school early in the morning, then moved a reclining chair to the door of the office, leaned there, drank tea leisurely, and then watched Xiong Kaishan with a group of little guys practicing gymnastics.

"Headmaster!"

Mo Guiyu walked over with the document in his arms and greeted weakly.

"Teacher Mo. ”

Yu Zehai nodded, and asked with a smile, "How is it?

Ermao and his daughter-in-law Mo Guiyu were forcibly ordered to return to the village by Yu Zehai. Mo Guiyu was originally teaching in Panlong Town Primary School, and it was not suitable to come to Yujiaao Primary School; as for Ermao, he was directly thrown to Zhou Jing by Yu Zehai to run errands, the tourism development project has just been launched, and it is now the time to employ people, and it is time for that kid to settle down after hanging outside for so many years.

"Everything was fine in the school. ”

Mo Guiyu nodded hurriedly and said, "Principal, I have also contacted several garment factories these days about the students' school uniforms, but I still can't pay attention to them, so I ......."

"Uh......"

Yu Zehai was slightly stunned, and said with a smile: "You can decide the school uniform by yourself." Student uniforms, nothing more than summer, autumn and winter clothes, different clothing, color and style are naturally different; in addition, each school uniform must have at least two sets, so that there is no change of washing. Screen out three powerful companies from the garment factories you contact, let them come to the school with clothing samples or design drawings, and then you pull Zhou Zhou's teacher Liu, as well as the company's Li Qianping, Zhou Jing, He Bingbing, etc., to help you refer to the idea. It's like going to the street to buy clothes, and you women are good at it. ”