The noon sun is like a big ball of fire, blazing, and it is constantly pouring excessive light and heat into the earth. The whole earth seemed to be on fire, and it was going to be hot—

Now that the biggest funding problem has been solved, schools around the country have also broken ground after this hot summer. Of course, there are still two troubles to be solved in front of Zhang Fan, one is the teaching materials, and the other is the teachers.

If you want to popularize literacy, you can't just have schools, you have to have teaching materials for students to show and teachers to teach them. Regarding the teachers who teach, Zhang Fan intends to adopt a combination of recruitment and independent training and selection:

On the one hand, all the folk Confucians were invited to come out of the mountains to teach students; Of course, there is still a big gap in the number of teachers, so he plans to mainly select the best candidates from the unsuccessful candidates in each imperial examination.

After all, the number of admission places is limited, and it is impossible for Zhang Fan to admit everyone who comes to participate in the scientific examination. However, even if the students who fail to participate in the list, since they dare to participate in the imperial examination, it is estimated that there are at least a few brushes, not to mention the best among them, even if they are above the average, at least for children, it should not be a problem to teach people to read and write.

Zhang Fan decided to hire them to go to various local schools as masters, provide them with food and board, and ensure that they had no worries about food and clothing, so that they could further their studies while teaching, and would not delay them in achieving better results in the next imperial examination. This is also a good way out for many people from average backgrounds......

Teachers seem to be easier to solve, but the textbook is not so simple.

Logically speaking, this should not be a problem for Zhang Fan from later generations, whether it is the enlightenment reading "Three Character Classic", "Hundred Family Names", "Thousand Character Text", ......, or the advanced version of "Di Zi Gui", "Kindergarten Qionglin", "Zengguang Xianwen", ...... or the more advanced "Four Books and Five Classics", which precious books are regarded as heirlooms by the Shi clan gatekeepers, Zhang Fan can get as many as he wants, and even rarer ones......

But there's a problem here, one or two books don't make sense at all. Not to mention the entire thirteen states of the Han Dynasty, Yangzhou alone, even if only 100,000 copies are printed each, the textbooks needed will have to start at least one million, so there is still a big gap, and it is not guaranteed that each student will have one......

If it is one or two copies, Zhang Fan can also choose to use golden beans to exchange them from the system, but the number of millions of copies is really unaffordable, and it is not necessary to drag him to death for many years! Besides, this is not a long-term solution, it is better to climb the technology tree honestly - improve papermaking and Ming movable type printing!

Papermaking has been improved by Cai Lun a few decades ago, he used bark, hemp and cloth, fish nets and other raw materials, through frustration, pounding, copying, drying and other processes to make "Cai Hou paper". This kind of paper, the raw materials are easy to find, and it is very cheap, and the quality has also improved. However, the cost of raw materials is high, and it is difficult to promote it comprehensively.

Zhang Fan came to the papermaking workshop to watch the process of papermaking in person, which can be roughly divided into four steps:

The first is the separation of raw materials, that is, the raw materials are degummed in the lye solution by soaking or cooking, and dispersed into fibrous form;

The second is pulping, which is to cut off the fiber by cutting and pounding, and make the fiber broom, and become pulp;

The third is copying, that is, the pulp is soaked into slurry, and then the pulp is scooped with a paper grazer (mat), so that the pulp is interwoven into a thin sheet of wet paper on the paper grab;

The fourth is drying, that is, the wet paper is dried or dried, and when it is removed, it becomes paper.

Since the Han Dynasty, although the process has been continuously improved and matured, these four steps have basically not changed, and even in modern times, in wet papermaking production, its production process is still not fundamentally different from the ancient Chinese papermaking method.

Zhang Fan knew that the main raw material for papermaking in later generations was bamboo, so he asked the junior official who managed the workshop:

"Well, have you ever tried using bamboo as a raw material?"

The petty official looked embarrassed, and stumbled back: "Back to the prince, the villain has indeed tried, but for some reason it is difficult to succeed......"

Zhang Fan nodded a little disappointed, and at this time, a large number of "brick families" among book friends came to give him popular science knowledge points:

"The fibers of bamboo are hard, brittle, and easy to break, and it is difficult to deal with them technically."

"Technically speaking, bamboo paper should only appear after the leather paper technology has been quite developed, because bamboo is a stalk fiber, which is relatively hard and not easy to handle."

"Right! Bamboo paper was almost unlikely, in the Jin Dynasty. Bamboo paper should have originated after the Tang Dynasty, and there was a relatively large exhibition during the Tang and Song dynasties. It wasn't until the eighteenth century that there was no bamboo paper in Europe—"

"I've been taught, hand tea to the big guy!"

"666, knock down the little blackboard, this is all going to be tested!"

"The anchor should not be too ambitious, the steps are too big and it is easy to pull the eggs!"

On Sunday, I took my son to afternoon tea and asked, "Why do you want me to study?" I replied, "Let me tell you!" When you read the book and drink this tea, you will say: 'The color of this tea soup is clear and translucent, the smell is fragrant like orchid, the taste is full and pure, mellow like poetry, the aftertaste is sweet, the teeth and cheeks are fragrant, the charm is full, and the sudden feeling is like a dream, as if in heaven and earth, it is really the best in tea!' And if you don't read, you say:

"Dad, where did you buy this tea? It's delicious! ”

"Don't be a son!"

"If you don't study well, you don't know if you're taken advantage of!"

"I'm a dumbfounder, but fortunately I'm typing slowly, and I'm almost tricked!"

……

Zhang Fan carefully examined the main raw materials for papermaking now, and there was almost no change from Cai Lun's era, and there was no innovation at all in the past few decades. Zhang Fan is very dissatisfied with this, eating vegetarian food, not wanting to make progress is not the attitude of doing technology.

Zhang Fan directly ordered him: "I said a few materials, you listen, there are mulberry bark, rattan bark, sandalwood bark, wheat stalks, rice stalks, etc., you give me a way to find and study how to use these new materials to make excellent paper." Do you understand? ”

When the junior official heard this, his head was big, so he could only reply stubbornly:

"No, my subordinates obey."

Zhang Fan was a little displeased when he saw his embarrassed appearance, and his tone became stern:

"You don't have to worry too much, the reason why Ben will list these raw materials is by no means groundless, but I heard that in the far west, the locals use these materials to make paper. I'll show you what these materials look like, so you don't find them. Is it okay this time? ”

The petty official's face looked much better, and he quickly replied:

"No, thank you for your compassion, the little official will do his best, and he will live up to the trust of the prince."

"Well, that's good, remember to be careful, and if you have any difficulties, send someone to ask me immediately. Okay, go ahead and do it! ”

Zhang Fan waved his hand, and the junior official retreated respectfully......

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