Today is Yu Zehai's first class.

In fact, in addition to Zhou Xiaoxi, Liu Wenwen, Mo Guiyu, Xiong Kaishan and Hou Liang, Yu Zehai and He Bingbing are also listed in Yujiaao Primary School. However, Professor Yu Zehai is in natural science, while Professor He Bingbing is in ideological and moral subjects.

Computer information technology, natural science, ideology and morality are public courses offered by the school in grades 3-6; as for music, art, physical education and other courses, like Chinese and mathematics, they are compulsory courses for grades 1-6.

At this time, in the library multimedia classroom, nearly 70 students from grades 3-6 were already sitting upright. Among these students, there were even some subject teachers and villagers who rushed to hear the news. Their arrival was to cheer Yu Zehai, but more of them were out of curiosity. They were curious about what knowledge Yu Zehai wanted to teach these children.

Yu Zehai glanced over everyone's faces in the audience and said with a smile: "Students, we start class. But before class, let's talk about what natural science is? Have any students volunteered to stand up and answer this question?"

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

A chubby little boy stood up and said.

"good!"

Yu Zehai signaled the other party to sit down and said with a smile: "Yu Wentao's answer was very accurate. The so-called natural science is a science that studies the laws of change in nature. In this way, everyone may still be confused, but we all know these laws of change in nature, such as why apples fall to the ground instead of falling into the sky? Why does the sun rise and fall to the west? Why does the river flow to the low place? Why are the moon sometimes round and sometimes bent? Why do there be sunny and rainy days? Why do people get sick or even die? Why do farmers get melons and get beans…"

"All these fall into the category of natural science."

"If you 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, I believe everyone is very familiar with it. As we all know, whether it is ice water, cold water, warm water, boiled water, etc., as long as it is water, humans can drink it directly. But why did our ancestors, our parents, and our teachers repeatedly emphasize that we should drink boiled water but not cold water?"

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

Before Yu Zehai could finish his speech, Yu Wenqiao quickly raised her hand and stood up, and said in a quick tone.

“The answer is correct!”

Yu Zehai pressed his hand and signaled the other party to sit down, saying, "So, why do you get sick after drinking cold water? That's because this raw water contains a large amount of bacteria and microorganisms. As long as the cold water is boiled and boiled, we can kill the bacteria in the water as much as possible, so that we will not get sick after drinking it in our stomachs."

"In addition, if we often run outside, especially into the deep mountains and forests, what should we do if we encounter a stream and are thirsty at this time? Experience in our old life tells us that we must not drink water in the pool, but drink water in the turbulent and rapids as much as possible."

"Do you know why this is?"

"Because the water in the pool is 'stagnant water'. The stagnant water flows slowly and will not even flow at all, so it is rich in a large number of bacteria and microorganisms. After being left for a long time, it will deteriorate and become odorous under the action of these microorganisms and bacteria. If you don't believe it, you can find a clay pot to put some water in it for ten or eight days when you go home. You will know what's going on."

"The water in the turbulent rapids is 'live water'. Because it is not suitable for the survival of bacteria and microorganisms in the turbulent rapids, compared with stagnant water, there will be much less bacteria and microorganisms contained in the living water. Do you understand after hearing this?"

"clear!"

Everyone spoke in unison.

"Let's continue to talk about natural science."

Yu Zehai smiled slightly and said, "After my explanation above, everyone should have a very general concept of natural science, natural science, which includes basic sciences such as physics, chemistry, biology, astronomy, as well as applied sciences such as medicine, agricultural science, meteorological science, materials science, etc. It is a 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 within the category of natural science.”

"So, in this class, I just explain and describe what natural science is. In the future, we will not only be limited to classrooms and campuses. I will lead you up the mountains, down the river, into the fields, on the roadside, to factory workshops... and even to your homes to lead you to understand nature, understand nature, learn and master the various changes of nature."

With the opening of courses such as sports, computer, natural science and ideology, the appearance and atmosphere of the entire school have been completely changed compared with the lifeless and rigid teaching before. The children in the village no longer feel that class is a very uncomfortable and tormenting thing, but on the contrary, they make them more fun.

As long as you complete the course 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...

Therefore, a very strange phenomenon soon appeared in the eyes of the villagers. In the past, they had to pay attention to the situation in the village from time to time. The purpose was very simple, that is, to see if any children skipped classes from school to play. In order to better supervise the children, all villagers reached a united front and supervise and cooperate with each other. But despite this, there were still many naughty children who committed crimes against the wind. There was no way, because the school was too boring for children who didn't know anything about these nonsense.

Among them, Yu Zehai was the most popular when he was young.

Nothing else!

At the age of young people, I don’t know why I need to learn scientific and cultural knowledge. If I can’t enlighten me, it will often only backfire.

Many times, they regard learning as a responsibility, a burden, and a drag... They don't know the purpose and importance of learning, and have no interest or desire to explore. After all, children are at the age of childlike innocence. Compared with playing, who is willing to study and explore those boring cultural knowledge?

As we grow older and gradually enter the senior grade, as our mind matures, we gradually understand the importance of knowledge. We study hard and catch up, and then we have reached the top.

This is the late bloomer!

Of course, among them, most people will complain and fall into depravity, and thus be confused by everyone.

This is the difference between mediocre and genius!

In just a few days, not only did they not see their children skipping classes, but these little guys basically turned to school after dinner and threw the bowl. At the beginning, some parents didn't believe that their children were going to school, so some parents secretly followed them, wanting to see where they were going and what they were doing.

But.

What made the adults in these villages strange was that the children were really running to school. You know, this was not the class time, which was completely opposite to the past. So the curious adults also secretly followed them into the school.

Good guy!

Although this will be the end of school, the school is still very lively. People who study in the classroom, read books in the library, learn computers in the computer room, and exercise and play ball on the playground... I won’t talk about table tennis and badminton, especially basketball and football. The passion and stimulation of group confrontation, the onlookers applauded...

Soon, everyone understood.

There are many subjects offered now, not only Chinese and maths in the past. Although they don’t understand many things very well, especially computers, they know one thing. Although these kids are doing a variety of things, this is much better than skipping classes.

As Yu Zehai said, children are the hope of parents, the future of the family, and the future of the entire village. Therefore, when you see a 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 had imagined and that the villagers all admired and supported him very much, Yu Zehai was completely relieved.

Yu Zehai has very few courses, and it is still an open course for senior grades. Logically speaking, as long as you start well, everything will run normally, and he doesn't have to worry about anything. However, Yu Zehai will not plan to pay attention to the messy things outside, unless he needs to come forward when he encounters something that cannot be solved.

I stole half a day in my spare time for the rest of my life.

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

This day.

Yu Zehai arrived at the school early in the morning, then moved a recliner to the office door, lay there, drinking tea leisurely, and then watched Xiong Kaishan taking a group of little guys to practice athletics.

"headmaster!"

Mo Guiyu came over with the documents in his arms and greeted him weakly.

"Teacher Mo."

Yu Zehai nodded and asked with a smile: "How is it? Are you still used to coming to the village?"

Ermao and his wife Mo Guiyu were forced to return to the village by Yu Zehai. Mo Guiyu was originally teaching at Panlong Town Primary School, so it was not appropriate to come to Yujiaao Primary School; as for Ermao, he was thrown by Yu Zehai to Zhou Jing and ran errands. The tourism development project had just started and it was time for people to use. The kid was wandering outside for so many years, and it was time for him to settle down.

“Everything is fine in school.”

Mo Guiyu nodded quickly and said, "Principal, I have contacted several clothing factories these days for students' school uniforms, but I still can't pay attention to it, so..."

"Well……"

Yu Zehai was slightly stunned and said with a smile: "You can decide on school uniforms by yourself. Students' school uniforms are nothing more than summer clothes, autumn clothes and winter clothes. Different clothing, colors and styles are naturally different. In addition, each school uniform needs at least two sets, and there will be no need to change them. Select three powerful companies from the clothing factory you contact and ask them to come to the school with clothing samples or design drawings. Then you will bring Teacher Zhou and Teacher Liu, as well as the company's Li Qianping, Zhou Jing and He Bingbing, etc., and just help you refer to it. This thing is like buying clothes on the street, and you women are better at it."
Chapter completed!