After they came back, they stayed in McDonald for a day, and immediately rushed to the forest to find Wang Yang. The clothes were torn, the face was thin, and it looked terrible.

Wang Yang was shocked, and quickly went up to pick up into the cool house.

He didn't speak nonsense, and directly spoke the words and purposes of condolences.

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

These are painted with the form of communication before leaving by oolong and others. They have not yet learned new things. Wang Yang is still careful.

Sure enough, oolong and others mixed the previous pictures and nouns.

"The tin brought back, it took a lot of time, and I packed a dozen bags! Unfortunately, the alpaca died, and the weather there was too cold." Oolong and others were ashamed because Wang Yang explained that they asked them to take care of them all the way to take care of them all the way to take care of them all the way to take care

Okay ... alpaca.

"It's just a alpaca, it's okay to die, people are okay?" Wang Yang was worried.

"People are fine." Said oolong and others.

"That's good, that's it, you must pay attention to keeping warm." Wang Yang was relieved. I was afraid that someone would have a cold and fever.

"There is no problem, we are very careful about mining tin, for fear that it will become powder and blow away by the wind, so we have a precautions long ago."

Oolong and others did not have a cold event. They did not forget that Wang Yang told before they left. Wann asked, if the weather is too cold, snow is white, be careful of tin into powder.

At that time, the weather was so cold, and the world was pale. The strategy was adjusted in time and did not use refining as the main collection method.

Instead, in the windless season. Smash the tin ore away and sweep out the tin powder. Collect it. Because of this, it helps them to save a lot of effort, and consumption is to wait for good weather that is waiting for windlessness.

Wang Yang nodded and looked at Oolong and others.

After explaining these, the Wulong's words turned around, and when he talked about what he found.

"The snowy mountains there, not only frozen many trees and death, but ten trees died four or five. It also frozen the river, and dripping water could not flow down."

Wang Yang flashed in surprise and said faintly, "What about the result?"

"As a result, we came back and found that the water level in Xiaohe was half low. We were afraid that the river over there was getting more and longer. There are not many water sources that this river can provide."

Wang Yang patted their shoulders and said faintly: "Don't worry about these, the river is not important for us, at best it provides a convenience of washing."

"Even if it is done. It doesn't matter, don't you just have a few hundred people's life water? You can also adjust it from the forest."

He did not mention the demand for the growth of wheat, because there is no need to mention that they did not dharine the water into the canal. These wheat's water is all under the rainy season.

If you freeze the north, it does not affect the wheat harvest. It only takes the rainy season, and the rain is raining. The wheat is waiting for it.

Take a step back, if the river is really dry. The rainy season will occasionally encounter a big drought, and the wheat can't be collected. Well, we can also retreat to the forest, eat fruit every day, and change the taste.

So I was worried that this would be worrying about the sky. If Wang Yang couldn't even distinguish this, then he would not mix it. Find a piece of tofu to kill.

"The copper mine team over there is also back, let's go to see them." Wang Yang smiled and walked first.

Oolong and others kept up, and when they saw the copper mine teams red, they were enjoying eating and drinking, and they were comfortable to bask in the sun.

"You are so comfortable! Eat and drink!" As soon as Oolong and others went up, they removed their food and looked at them with a smile.

The people in the copper mine team are not annoyed. If you do n’t, you can get it again. Haha laughed and patted each other's shoulders. It was funny.

The two sides asked each other, and the copper mine team asked: "When will you set off? We have rest for a few days and prepare to pick the copper again."

Oolong and others suddenly widened their eyes, thinking in their hearts, this was going to leave again?

They know the situation of the copper mine team very well. Generally, when they come back for a few days, they will step on the journey again. It can be said that there are no free time.

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

But how can the transportation team run, the destination is still a place in the tribe. The message is transmitted, and the message will not be derailed with the tribe. You can often see your companions.

If oolong, if they followed this, it would be miserable. It took about five months to go, rest for a few days, and go again. Well, one year has passed.

Three and sixty -five days a year, staying in the tribe for a few days, or at other times on the road to the north, or on the north.

I really feel miserable when I think about it.

Looking at the expression of everyone, Wang Yang smiled slightly: "Do you think it is too far, too cold, and waste too much time?" He suddenly asked.

Oolong and others are not ambiguous. The chicks nodded like rice, and their eyes were all hoped.

"Don't go, stay here." Wang Yang smiled.

Uh ... Oolong and others did not expect Wang Yang to speak so well. When I thought that everyone else was still running, they refused to contribute to the tribe.

One shot of the chest: "We still have to go, tin is very important."

Watching him treat the tribe as the most important sincerity, Wang Yang was very pleased. It seemed that he really merged into the tribe and patted his shoulder -speaking focus.

Time to talk about. "

"Don't rush to mining for your copper mine team, stay first."

He is not talking about the customer, it is not necessary, but he really wants to keep them.

The copper mine team has been in and off at least two months. Oolong and others are almost half a year back and forth. It is easy to disconnect with the development progress of the tribe.

He has to let them stay, learn verbs or something, and then broadcast culture and other things.

"If you talk about it yourself, I have to see the situation elsewhere." I ignored the movement of the two teams and horses, and turned away.

Nympho

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

Mathematics must be spread. No matter what project is, mathematics must be used.

As a lingering lingering aura's bargaining and bargaining, numbers are the key to the first.

The invention of numbers, let's not talk about him, the invention of mathematics, let's not say it.

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

The problem faced by Wang Yang basically lists the following two points.

First, spread the numbers to everyone, and use it to be practically used in life. Otherwise, everyone is boring, and it is estimated that it is not fast.

Second, Wang Yang is a science student.

In order to solve the first point and promote mathematics into the lives of everyone, Wang Yang is very impulsive to run the market. There is nothing more to accommodate the lives of everyone. Chai rice oil and salt sauce vinegar tea, every family has to use it.

Unfortunately, this is a Datong society, and no one is worried about this.

The good or bad learning of mathematics depends on the ability of understanding. The formula is always dead. People who are alive, and people who turn their brains quickly. Learning mathematics is faster.

The brain is not so fast, and the grades are average. Of course, it is also critical to work hard to work hard, 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 think of the expression of constipation.

So he was not in a hurry to do it.

The first step, he wants to test the understanding of everyone. This is not the ability to understand the text of mathematics, but the ability to understand the object -shaped text.

This is the basis of the lecture. In the process of teaching their teachings, everyone will not look at each other.

He designed a test paper. There were no blank questions on the test papers, no choice questions, and no listening questions.

Just one article, read understanding.

If you do n’t do it, you will come true!

That night, he wrote this reading comprehension on the ground, so that they can extract the most important part they think, that is, the essence of the entire article.

Everyone stepped forward to see the questions. After reading it, they went to the side, and did not look at how others wrote, and wrote their own.

Wang Yang looked at the corner of his eyes and smiled with satisfaction: "Yes, very good."

It turned out that everyone did not lack understanding of understanding. After all, this still uses the picture framework as a carrier. The people have painted for so many years and understood it early.

Wang Yang did not talk nonsense, and continued to ask them for them. As a result, everyone wrote the answer one by one, without any errors.

Without understanding, mathematics can spread.

The next day he found a lot of mud panels, and nothing was engraved with "1234".

The crowd felt strange and asked him what he drew. He said it was a good thing. When the mud board was burned, he found everyone.

Wang Yang in the fire was very emotional and very excited. He took the mud board high and let everyone see it again.

"Guess, is that‘ 1 ’be a tree?”

"No, there is no crown, not a tree, I think it looks like a wooden spear."

"Is that '2' like a chicken?"

"Unlike, I think it looks like a bird."

Everyone's face was curious, and there were many discussions.

Wang Yang pressed his hand. Under the quiet eyes, he drew a painting, a person in the painting, and then painted another painting. It was a tree.

Then he drew a lot of paintings, all of which were units, and finally drawing a line under the painting, all pointing to this "1".

Everyone was stunned and asked Wang Yang what did it mean? What do you want to say?

Wang Yang smiled slightly: "What are the same places when you look at these paintings?"

The crowd showed contemplative, and then seriously exposed the constipation, grinned, shook his head and said that he couldn't see it.

"Uh ..." Wang Yang was a little stunned. I didn't expect it to understand so difficult. Indeed, in their world concepts, there was no single division, no one, no two, no three.

How much is it and how much you want to draw.
Chapter completed!