The tung oil lamp emitted a dark red light. Wu Yiping was lying on a broken table to prepare lessons, grabbing the hair on his head from time to time. Sometimes he thought hard, sometimes he wrote quickly, and Wu Yiping grabbed the head with his hands and grabbed it hard.

Wu Yiping is very depressed now. He finally knows the hard work of being a teacher, and at the same time realizes that he is not the material for being a teacher at all.

Wu Yiping now deeply regrets that he didn't study hard at the beginning. When he first taught those children, Wu Yiping chose the Three Character Classic. Unexpectedly, as he taught, he found that he didn't remember the following content.

OK! I won’t teach the Three Character Classic for now, so I will teach Chinese Pinyin! Well, I learned this myself well; it went smoothly. But when Wu Yiping was about to finish teaching Pinyin, he didn’t know what to teach later.

"Oh! Damn it! I remember it. It seems that it is a person who has a hand or something, but what is behind it????"

"I think so, I think so! I'll teach me how to do it! I don't care about the others. Besides, I don't teach them so much about writing articles, poetry, etc.! My warship still needs a lot of technicians."

Wu Yiping didn't learn much knowledge in his student days, but he learned a lot in the army. Unfortunately, what he learned in the army is basically science knowledge, such as how to calculate distance and how to calculate ballistics.

Later, when I was studying on the warship, I learned the use and maintenance of various equipment, learned different communication methods, the latest radio communication, ancient flags and lights, calculating distances and calculating directions, these are all basic. The requirements for higher levels are to judge speed, directions, distances, etc. based on the natural environment...

So when these dolls in Dafeng Village were studying, a very strange situation occurred. Ten classes were arranged in a week, but Wu Yiping had nine classes to teach everyone about mathematics, some science knowledge such as graphics, and there was only one class left to teach everyone to recognize words. Moreover, there was no systematic tutorial in this class, and all of them were taught what Wu Yiping thought of.

First, I will teach you how to understand books and write Arabic numerals, then count them, and then teach you how to learn units of measurement, such as one meter equals one hundred centimeters, one kilogram equals 1,000 grams, etc. Then I will teach you some simple geometry, some calculations of triangles, circular, rectangular, square......

Moreover, every time after class, Wu Yiping would assign a strange homework, such as arranging students to go to the cesspool to collect a odor that can be ignited, or a magnet that can absorb iron. Sometimes, he would arrange for students to find a kind of black oil that can overflow from the ground and burn.

And we also took everyone to make kites, to see who flew high, to see whose kites could fly together with a small piece of branches, to see who could more accurately control the kites to the designated location, etc., etc.

Sometimes students think of strange questions. For example, when boiling water in a kettle, why does the lid of the kettle be flushed up when the boiling water is boiled, or why smoke and dust fill it up when the firewood is burned, etc. Moreover, every time the student who answers the best can get a reward of half a pound of dried fish, which greatly enhances the enthusiasm of students. When they are fine, they think about some strange questions and do some things that make adults wonder.

From the first day of class, the children were attracted by Wu Yiping's strange teaching methods. So far, students can write from 1 to 100, add or subtract within 1,000 and multiplication and division within 100, and write some simple words. The most important thing is that most students have learned to think.

Wu Yiping, who has completely given up literary education, is already planning the next stage of teaching plan, bringing some batteries and flashlights from the ship to the school to perform electromagnetic experiments for students; at the same time, he explains to students the basic knowledge of navigation such as the principle of leverage, distance measurement methods, etc. Although these knowledge is very advanced and very shocking, time waits for no one!!

Wu Yiping does not need all students to understand. He only hopes that a small number of people can understand. Once the seeds are sown, they will bloom and bear fruit.

Today, Wu Yiping planned to explain the principle of the steam engine to the students. He found a pressure cooker on the battleship, got up early and boiled the fire. When the students arrived, the water had already started. First review the knowledge of yesterday. Then Wu Yiping pointed to the pressure cooker and said:

"Students, I asked a question a few days ago. Why does the water boil when the kettle is boiling, and the lid of the pot is flushed up when the boiling water is boiling? Liu Rui answered the best. He said that when the water boils, a lot of air will be produced. If there is too much air, it will be out, so he flushed the lid of the kettle open. So do you have a look like it? If I have a kettle that is big like this room, and the lid of the kettle is very small, filled with water, and burn it with a large fire. After the water boils, how powerful is the energy that rushes out of the lid of the kettle?"

When I heard what Wu Yiping said above, some students bowed their heads and thought hard. Some students were buzzing together to discuss, but at this time, Liu Rui was the first to answer:

"Instructor, I think I must be very strong! If it is really as big as a house, I think it will definitely blow people away easily."

"No! How much effort does it take to blow people away! If I were boiling water at home like that, I wouldn't see the lid rushing to the roof!"

A student named Tao Zude also said, "Instructor, I don't think it's possible. No matter how big the fire is, you can only cook the sweet potatoes faster! I tried it when I was at home. That time my dad beat me up and said that I had burned all the firewood for the day and only cooked a pot of sweet potato soup."

"Haha, it turns out that you were beaten because of this! Your father is really like that. What a big deal, it made countless marks on your leg." Zhang Yunshan looked at Tao Zude with gloating expressions and said loudly about his beating, hoping that the whole village would hear it.

As soon as Liu Rui finished answering, he made an objection voice, and the more he talked, he became more and more outrageous, and he immediately came to the question of being beaten.

"Chi!Chi!" At this time, the air pressure in the pressure cooker rose, rushing the iron up and making a sound.

When everyone heard the sound, they realized the strange pot in front of them. Wu Yiping didn't say anything, but picked up the fan and suffused the fire hard. Soon the sound of "Chi!Chi!" became louder and louder, denser and denser. Finally, it became coherent.

"Now you're ready." Seeing that the temperature should be almost done, Wu Yiping reminded the students below, and slammed the stove and took off the iron cap on the pressure cooker. A high-temperature steam mixed with boiling water rushed straight to the roof, rinsing the straw on the roof, making a "swish" sound. The classroom suddenly became foggy.

"Ah! Look, what I said is true." This is Liu Rui's voice

"Wow! It's so high!" Gong Ping looked at the steam rushing to the roof with an incredible look on his face as if he was incredible as he looked at the steam rushing to the roof.

"Oh! It's so hot! It's so hot!" The unlucky guys sitting in front were rushing back.

The classroom was suddenly in chaos, screaming and screaming. Seeing that the effect had reached, Wu Yiping stopped moving the stove and carefully took the pressure cooker to the side and placed it on the ground. As the temperature of the pressure cooker disappeared, the height of the steam was gradually lowering, and it was no longer neatly sprayed out after one minute. The people in the classroom gradually quieted down.

"How is it? Are you all clear about the conclusion of this matter now? Some people just said that the power is great, and some people said that the power is small. But what I want to say is that if we encounter any questions in the future, don't draw conclusions based on our own imagination, and find a way to confirm them."

While packing the water on the table, Wu Yiping continued, "The power of steam is very huge. What do you think this power can be used for?"

As soon as he finished speaking, he heard Liu Rui shouting, "Instructor, I thought, we can put a big pot on the boat and burn a big fire, so that huge steam will be sprayed out and can blow the boat forward. In this way, the boat can also drive when there is no wind, and there will be no need for many people to row again."

When Wu Yiping heard Liu Rui's words, his eyes suddenly lit up. Unexpectedly, this guy's reaction was so fast that Wu Yiping had always taken good care of him.

"Very good. I have said so much today, and I have the knowledge I taught you before. In fact, there is only one purpose, that is, I hope you can use your imagination. One day, we can all build a big boat that does not require sails or rowing. We can take this boat to see how big the sea is, what is the end of the day, and whether there are fairy islands overseas. Are you willing to go with me?"

After hearing Wu Yiping's words, all the students below were going crazy. The age of these students was just when they were curious about everything. There was no definite statement about how high the sky was and how big the earth was. Now I heard that the instructors wanted to take them to confirm this question, and they were all extremely happy.

"Instructor, we are willing to go with you."

"Instructor, I'm going to Fairy Island."

"Instructor, I'm going, too."

Hearing the answers from the students below, Wu Yiping laughed out of his heart again. He left the moving warship one step closer.

(Say nonsense, using a pressure cooker to do experiments is just a writing requirement! Friends who see it, don’t go to experiment! It’s okay if it gets hot or not.)
Chapter completed!