When they returned, they stayed in the wheat field for a day, and immediately rushed to the forest, where they found Wang Yang, whose clothes were tattered, his face was emaciated, and he looked extremely miserable.

Wang Yang was taken aback, and hurriedly went up to pick him up into the shady house, bringing water and food, and offering condolences.

He didn't talk nonsense, he directly said the words and purpose of condolences.

"This time you are good, very brave, very hard-working, I know, tin has been brought back, right?"

These are painted in the form of communication before Oolong and the others left, they have not learned anything new, Wang Yang is quite careful.

Sure enough, Oolong et al. mixed previous drawings with noun adjectives.

"The tin was brought back, it took a lot of time, and it was packed with a dozen bags! Unfortunately, one alpaca died, and it was too cold there. Oolong and the others were very ashamed, because Wang Yang had told them to take care of them all the way...... Alpaca.

"It's just an alpaca, it's dead when it's dead, and it's okay, right?" Wang Yang looked worried.

"People are fine." Oolong and others said.

"That's good, that's good, you must pay attention to keeping warm and windproof." Wang Yang breathed a sigh of relief, he was really afraid that someone would have a cold and fever or something: "Mining tin, there are no problems, right?" ”

"There is no problem, we are very careful in mining tin, for fear that it will turn into powder and be blown away by the wind, so we have already taken precautions."

Oolong and the others did not break the big thing, and did not forget Wang Yang's thousand instructions before they left, and told them that if the weather was too cold and the snow was white, they should be careful that the tin turned into powder.

When I got there, the weather was so cold that the sky and the earth were white. The strategy was adjusted in a timely manner, and refining was not used as the main means of collection.

It's in the windless season. Smash the tin ore open and sweep out the tin powder. Collecting it, too, saved them a lot of effort, and the consumption was consumed waiting for good weather without wind.

Wang Yang nodded, impressed by Oolong and the others.

After explaining this, Oolong changed his words and talked about what he had discovered.

"There was a heavy snowfall that not only froze many trees to death and collapsed, but four or five out of ten trees died. The river was also frozen, and the dripping water could not flow down. ”

Wang Yang was surprised, and said lightly: "What is the result? ”

"When we came back, we found that the water level of the river had dropped by half, and we were afraid that the river over there would freeze for longer and longer, and the river would not provide much water."

Wang Yang patted them on the shoulder and said lightly: "Don't worry about this, that river is not important to us, at best it provides a convenient place to wash." ”

"Just do it. It doesn't matter, isn't it just the living water of a few hundred people? You can also get there from the forest. ”

He didn't mention the need for water for the wheat to grow, because it really didn't need to be mentioned, they didn't bring water into the canals. The water on which the wheat depended was all during the rainy season.

The re-freezing in the north does not affect the wheat harvest. It only takes the rainy season to come and the rain to make a big splash. The wheat is waiting to be harvested.

Take a step back and say, if the river really does it. In the rainy season, there is also a big drought, and the wheat can not be harvested, so we can also retreat to the forest and eat fruits every day to change the taste.

So worrying about this is unfounded, if Wang Yang can't even tell this point, then he shouldn't mix it up, just find a piece of tofu and kill him.

"The copper mine team has also returned, let's go see them." Wang Yang smiled and walked first.

Oolong and the others followed, and saw that everyone in the copper mine team was full of red light, enjoying eating and drinking, and basking in the sun comfortably.

"You're so comfortable! Eat and drink! As soon as Oolong and the others went up, they took away their food and looked at them with a smile.

The people of the copper mining team are not annoyed, they can go and get it again if they are gone, laughing, patting each other on the shoulder, it is very funny.

After asking each other about the situation, the copper mining team asked, "When are you leaving?" We took a few days off to get ready to mine again. ”

Oolong and the others suddenly widened their eyes, and thought to themselves, this is going to leave again?

They know the situation of the copper mine team very well, and under normal circumstances, after they come back, they will rest for a few days, and then they will embark on the journey again, so to speak, there is not a lot of free time.

Including many teams, this is the case, and the transport team is running around day and night.

But no matter how the transport team runs, the destination is still a place of the tribe, passing on the news, it will not derail the tribe, and it is often possible to see companions.

If they come according to this, it will be miserable, it took about five months to go, rest for a few days, and go again, okay, a year has passed.

Three hundred and sixty-five days a year, he spent a few days in the tribe, and the rest of the time he was either on his way to the north or was in the north.

It's miserable when you think about it.

Taking in everyone's expressions, Wang Yang smiled slightly: "Do you think it's too far away, too cold, and too much time is wasted?" He asked suddenly.

Oolong and the others were not ambiguous, nodding like a chicken pecking rice, their eyes full of hope.

"Then don't go, stay here." Wang Yang laughed.

Belch...... Oolong and the others didn't expect Wang Yang to be so easy to speak, and for a while, they thought that everyone else was still running around, so they refused to contribute to the tribe, and they felt very unhappy for a while.

A pat on the chest: "We still have to go, tin is very important." ”

Seeing that he regarded the affairs of the tribe as the most important sincerity, Wang Yang was very pleased, it seemed that he had really integrated into the tribe, patted him on the shoulder and said earnestly: "The coming day is long, those tin are enough for a long time, take a good rest for a while." ”

"Don't be in a hurry to mine in your copper mining team, stay first."

He's not saying polite words, there's no need, but he's really going to keep them.

The copper mine team has been back and forth for at least two months, and Oolong and others have been back and forth for almost half a year, so it is easy to lose touch with the development progress of the tribe.

He's going to have to get them to stay, learn verbs or something, and then broadcast culture and stuff.

"Talk to yourselves, I'll have to see what happens elsewhere." Ignoring the touching of the two teams, he turned around and left.

……

There is only one thing he has to do, mathematics.

Mathematics must be disseminated, no matter what kind of engineering it is, mathematics must be used, and it is also a few courses that are not used by everyone.

As the bold sound of bargaining and bargaining lingering in the aunt, the number is the first key.

Let's not talk about the invention of numbers, and we won't talk about the invention of mathematics.

Because of these nonsense things, it doesn't make much sense to understand how it appeared.

The problems faced by Wang Yang basically list the following two points.

First, spread the numbers to everyone, and use them in life, otherwise everyone will be bored to learn, and it is estimated that they will not learn quickly.

Second, Wang Yang is a liberal arts student.

In order to solve the first point and promote mathematics into everyone's lives, Wang Yang has the urge to run a vegetable market, and there is nothing more accommodating than this into everyone's lives.

It's a pity that this is a Datong society, and no one worries about this.

The learning of mathematics depends on the ability to comprehend, formulas are always dead, people are alive, and people who turn their brains quickly will learn mathematics faster.

If the brain doesn't turn so fast, the results will be average, of course, it is also very important to work hard or not, but talent is still more important.

In terms of talent, this group of primitive humans is estimated to be not so outstanding, and it may be very difficult to learn, Wang Yang can predict everyone's constipated expressions.

So he is not in a hurry to do it, sharpening knives does not waste woodcutters.

In the first step, he wanted to test the comprehension of the crowd, and in this respect he was not talking about the literal ability of mathematics, but the comprehension of object glyphs.

This is the basis of the lecture, and you must ensure that in the process of teaching, everyone does not look at each other.

He designed an exam paper with no fill-in-the-blank questions, no multiple-choice questions, and no dictation questions.

Just one article, reading comprehension.

If you don't do anything imaginary, you can do it!

That night, he wrote the reading comprehension question on the floor and asked them to copy what they thought was the most important part, which was the essence of the whole text.

Everyone stepped forward to read the title, and after reading it, they went to the side, and they didn't look at what others wrote, and wrote their own.

Wang Yang looked at it, the corners of his eyes bent, and he smiled with satisfaction: "Not bad, very good." ”

It turns out that the people do not lack the ability to understand, after all, this is still a form of communication with the frame of pictures as the carrier, and the people have been drawing for so many years, and they have already understood it thoroughly.

Wang Yang didn't talk nonsense, and continued to ask them to do it, but everyone wrote out the answers one by one, without any mistakes.

If comprehension is fine, math can spread.

The next day, he found a large pile of clay tablets, and without carving anything, he carved numbers such as "1234".

The people thought it was strange and asked him what he was drawing, and he said it was a good thing, and when the clay tablets were ready, he called them.

Wang Yang, who was in the firelight, was very excited, and took the clay tablet high for everyone to see.

"Guess if that '1' is a tree?"

"No, no canopy, not a tree, I feel like a wooden spear."

"Does that '2' look like a chicken?"

"No, I feel like a moa."

Everyone looked curious, talked a lot, and leaned forward to look at it, and asked Wang Yang what these things were.

Wang Yang pressed his hand, and under his quiet gaze, he drew a picture, in which a person was in the painting, and then another painting, which was a tree.

Then he painted a lot of paintings, all in units of one, and finally drew a line at the bottom of the painting, all pointing to this "1".

Everyone was stunned and asked Wang Yang what he meant by painting these? What to say?

Wang Yang smiled slightly: "What do you see in common with these paintings?" ”

Everyone showed contemplation, and then showed constipation very seriously, grinning, and shaking their heads to indicate that they couldn't see it.

"Uh......" Wang Yang was a little stunned, he didn't expect it to be so difficult to understand, indeed, in their world concept, there are no separate numbers, no one, no two, and no three.

How much there is, depends on how much you want to draw.

"It's okay, we'll come again!" (To be continued......)