Because the knowledge in the first book is enough for the people in their tribe to learn for a while.

According to his estimate, after he returned from Jinguan City in the south, the children in the tribe might not be able to finish learning it.

The second volume of mathematics books will be delayed until he is in Jinguancheng.

It just so happens that there will be more time at that time, so I can make it more perfect and more systematic.

He carefully checked the draft of the mathematics book in the first volume, and after confirming that it was correct, Han Cheng asked Yuan, who started here, to copy it into the blank textbook. When copying, he specially told Yuan that he must Seriously, mathematics is a very serious matter, and a wrong number will lead to major errors in the calculation results.

Holding the draft of the mathematics book compiled by Han Cheng, Yuan, who had already read it fascinated, naturally nodded hurriedly.

Before Yuan transcribed, Han Cheng himself took a pen and copied a blank textbook as a model.

At the same time, write the page number in the lower right corner.

Because the paper in the tribe is not mature enough and the quality is not good enough, textbooks can only be written on one side, unlike the textbooks of later generations, which can be printed on both sides.

It is also because of this that the textbooks produced are relatively thick.

In addition to telling Yuan not to make mistakes in copying, Han Cheng also told her that it doesn't matter if the words are bigger or smaller, but the content on each page must be the same.

It cannot be said that after copying this page, see that there is still a lot of free space, and copy some of the content of the next page onto this one.

This is not only the case for mathematics books, but also the language books that are produced first, also follow this principle.

Yuan is indeed an outlier, the best candidate for the tribe to be a math teacher.

Others seem to think it is very boring, and even feel like a big math book after reading it, but she can read it with gusto.

When copying, you will fall into meditation while copying.

Sometimes, I will laugh while reading the book, and sometimes, I will slap the desk full of excitement.

After hearing the sound and feeling the pain in his hand, he came back to his senses, then smiled sheepishly at Han Cheng who was not far away, and continued to copy the book.

But it won't be long before such a state will appear again.

Han Cheng is no stranger to this. He has been to Internet cafes for a long time, and he has seen all kinds of gods and gods. Compared with them, Yuan's state is much worse than them.

Moreover, Han Cheng likes Yuan's state very much. After all, he needs to quickly take people to Jinguan City in the south after he has settled these matters. After he leaves, the professor in the tribe The heavy responsibility of mathematics falls on Yuan, the No.1 in mathematics besides him.

Her state is very conducive to her understanding the textbook as quickly as possible and preparing for the next step of teaching.

It's not only Han Cheng who likes to see Yuan enter this state, Wu also likes it very much.

Because Yuan is not only fascinated by these topics and calculation rules when copying books during the day, but also holding a copied book at night, sitting under the oil lamp and reading non-stop, and at the same time holding a pen and paper to the side Calculation.

She didn't care about the rest of the things.

Wu, who always felt tired, suddenly felt much lighter, even walking with energy.

"God, what does this thing mean?"

"This one is pronounced 'a', that one is pronounced 'b'...they mean to represent an unknown number, and it can also be replaced with any number. What they express is a law of calculation.

Not only can multiplication be represented by them, but also addition and subtraction can be used..."

When researching a topic, Yuan would ask Han Cheng about something that he couldn't figure out, and Han Cheng would give Yuan an answer in as much detail as possible...

-------------Chapter Dividing Line---------------

"Bang bang bang..."

In the early morning, there was a sound in the bamboo pole forest not too far from the Qingque main tribe.

This is where some people from the tribe cut bamboo.

Things like bamboo, once rooted in one place, multiply very fast.

Many bamboos can be drilled out of a bamboo whip.

After nearly ten years of growth, the bamboo pole forest here in the Qingque tribe has already fully multiplied.

Not only did it cover all of the previous earth mountain, but it also extended a lot to the surrounding area.

If it wasn't for Han Cheng who asked people to dig a little down at the edge, and then simply built a stone wall with lime mixed with stones, I'm afraid these guys would have spread the cultivated land on the side.

Originally lying lazily in the bamboo grove, Han Cheng had someone specially built a wooden shelf to play with panda Tuantuan, his mother, and two other bear children. Hearing this voice, he saw Han Cheng a few more times. Immediately after my actions, I regained my spirit.

He came down from the top awkwardly, rolled all the way over with short legs, and then hugged Han Cheng's chopped bamboos without letting go. Arch up, arch up.

You can do whatever you want if you can be coquettish and cute? !

Facts have proved that being able to act coquettishly and being cute means that you can do whatever you want. After a while, a few chubby guys begged for bamboo from Han Cheng and others, and then sat there and gnawed away.

Bamboos that are so hard that humans need to use knives and axes to cut them down are similar to those made of tofu under their sharp teeth, and they can be easily bitten apart, just like eating sugarcane.

Looking at it, Han Cheng wanted to drive them and let them gnaw down the bamboo one by one.

Of course, this is impossible. If these guys can be so obedient and obedient, they won't know that they can easily gnaw down a bamboo, and they will come to rob the bamboo that they and others cut down.

After scorning the cubs who were afraid of working, Han Cheng and Shitou continued to cut bamboo.

From working in the morning to having breakfast, I felled six bundles before it was over.

And after their busy work, nearly [-] bamboos were brutally cut down by them, tied into bundles, and carried far away.

This move made these guys with sunglasses feel bad.

Seeing that the big bundles of delicious food were about to be carried away, he quit immediately. He hugged the stone and the others' legs with his two front paws, and then sat down on the ground with his buttocks, and he started the shameless mode.

If Little Pea hadn't heard the call from the old man and trotted all the way to kill him, I'm afraid it would take some time for Han Cheng and the others to get rid of these hooligans wearing sunglasses.

Downstream of the small river of the Qingque Tribe, not too far from the Retting Pond, a pond was re-dug out.

It's not as big as the retting pond, but it's not too small either.

It is not yet the time when the hemp in the tribe is mature, and this newly dug pond is of course not used for retting.

Under Han Cheng's command, the bundles of bamboo that had just been felled were put into the pond one by one.

And like retting, the top is pressed with big stones to prevent it from floating.

However, it is different from the time of retting. The pool used for soaking bamboo is not connected as a whole. It is divided into several smaller pools, and the water between them will not communicate with each other.

And each small pool is also soaked with a bundle of bamboo.

"Get three more lime heads."

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