'I'll count it now, I'll see it. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ’

Qian Ce's small body calculates the formula on the blackboard,

Number of rabbit feet X total number of feet - total number of feet ÷ rabbit feet - number of chicken feet = number of chickens. Qian Huan kept calculating on the blackboard, and the people in Guozijian were already confused, what is this symbol, can the pheasant and rabbit be calculated like this in the same cage?

This is the operation of mathematics, if you use this method, a person with a flexible mind will calculate the result within ten breaths, even a fool can calculate faster than you, this is the operation of mathematics, today just let all the students know, after class. ’

Qian Ce's class shouted, not only the people of Guozijian, but also the people who were lucky enough to enter the classroom in Chang'an were a little excited, if this kind of operation was popularized in Datang, what kind of effect would it be?

'Your Majesty, please hand over these calculations to our country's sub-studies, and the country's sub-studies will surely be carried forward. ’

"You guys get out of the way of Lao Tzu, when Lao Tzu ran a school, you can't do this and that, and now if you meet a good one, you will accept your country's learning?" You Guozi only learned how to be shameless, and you didn't learn anything. ’

Qian Huan's rude insult reminded Li Er of Huang Ye in Zhuangkou. What kind of general is it?

'Qian Huan shut up, don't be rude, as for Aiqing of Guozixue, this is the teaching method of Huizhuang Academy, and I can't force it, this matter still needs to be discussed with Qian Huan. ’

The person from Guozixue looked at Qian Huan, Qian Huan had already picked up the broom to sweep the floor, and the person from Guozixue sighed and returned to his seat. The next class time has Qian San's literacy, Chinese pinyin. Zhang Shiguang's Four Books and Five Classics,

Zhang Shiguang's class can be regarded as learning evil anger for Guozi. Li Er didn't laugh out loud when he heard it.

'The Four Books and Five Classics are compulsory courses for my Tang students, and you will know their importance when you look back at your judgments. He has never read the Four Books and the Five Classics, let alone knows what the Four Books and Five Classics are, so he is so rude, and he is often slapped and taught by his elders. ’

Qian Huan grinned as he listened below. How did this Zhang Shiguang look more and more like a child, and tricked him into writing the Three Character Sutra, and now he still holds a grudge in his heart, Qian Huan is thinking about when to pour a pot of wine on this old man and trick him into going to the Qinglou.

Finally, it was Qian Huan's turn to give a lecture. All the students did it straight, because this was Qian Huan's first time teaching them. Qian Huan walked to the lecture, and the first sentence was.

I don't ask questions in my lectures, the first class is for you to know, not for you to understand. If you want to take notes, take out the notebook now. I'm going to start the class, and besides, the people of Guozixue are not allowed to ask questions, and if they don't want to listen to you, they will go out, and a group of old men will not understand after listening to them.

Li Er just wanted to smash the teacup in his hand at Qian Huan, but he was a little reluctant to look at the transparent teacup, and glared at Qian Huan fiercely, Qian Huan shrunk his neck, indicating that he knew.

"Okay, let's start the lecture, the first class is chemistry, what is chemistry, I'll give you an example, you all know that the country and the city and the Qian Mansion can be late in the summer, and the clothes outside are amazing, what Qian Huan can spell, Qian Huan is a demon." I tell you now, if you put saltpeter in water, saltpeter will absorb the heat of the water, causing the water to turn into ice. But this ice can't be eaten, it was Lu Guogong's stomach that was good, and someone else would have diarrhea earlier. This requires many repeated dilutions before it can be edible, and this is simple chemistry. ’

Qian Huan's words really made the people of Guozixue forget Qian Huan's insult, and they were all discussing this saltpeter in private.

"If you don't want to listen to you, go out, don't disturb my class." ’

The people of Guozixue were quiet, glaring at Qian Huan angrily, but they did not refute it. Qian Huan continued.

Now when we talk about living things, we simply let you know that horses and donkeys are locked together to create mules, that is, hybridization will produce new creatures, and you know that. Next, I ask the great Confucian of Guozixue a question, horses and donkeys will give birth to mules, so what will goats and tigers give birth to together. ’

Some people say that the tiger is a sheep, and some people say a sheep and a tiger. Some people even asked which one was male and the other was female. Qian Huan covered his face and looked at Li Er.

'Your Majesty, you should abolish Guozixue, sheep and tigers can't give birth to anything when they are locked together, they can only be eaten.' ’

The person from Guozixue was stunned for a moment, and then his face turned red, and he lowered his head and dared to look at Li Er.

Qian Huan said that he would be eaten Li Er was also stunned, because he was also thinking about what creatures would be born, but he forgot that tigers eat meat, Qian Huan asked Li Er to abolish Guozixue, Li Er looked at this group of wastes, and the idea of abolishing it flashed, because he was also brought in by Qian Huan.

Li Er said angrily.

'You give me a good lecture. I'm playing with officials, be careful to reward you with a big board. ’

Qian Huan's hand covering his face was put down, and he nodded to Li Er,

What I want to do now may affect the economy of Chang'an as a whole, and if you think it is inappropriate, you can put it forward, but I won't talk about it. ’

Qian Huan looked around.

Since there is no one to organize, I will begin to speak. Salt, you all know that you have eaten it, but the salt you eat is different from my Qianfu, and the salt your majesty eats may not be as good as the salt that my Qianfu eats, not that my money is hidden, but I dare not take it out, because this influence is too great, and I am afraid that it will backfire. The salt you eat may be sea salt, but the salt you eat in my Qian Mansion is stone salt. You will say that the stone salt is astringent and bitter and cannot be eaten, because you will not be able to purify, and the stone salt after repeated refining will come faster than the petrel, because the stone salt mountains are easier to extract than in the sea. ’

Qian Huan took out a packet of edible salt brought out in Qian's mansion in his arms and threw it to the first classmate.

'Pass it on, taste it, take a small bite, it's salty. ’

The first student just tasted it, and then Niu Jinda took it and presented it to Li Er, Li Er took a mouthful and put it in his mouth, yes, it was indeed much better than the salt in the palace.

"Don't teach the method of refining the second salt, write down the method to me,'

Qian Huan lowered his head as if he didn't hear it, Li Er was angry, but he was helpless to take Qian Huan, and spoke again.

'Write down the recipe, go to the palace to teach once, and return your title of Marquis of Huiyang.' ’

The influence of salt is really too big in Datang, every year there are merchants in the Western Regions who exchange cattle and horses for edible salt in Datang, if Datang can make salt in large quantities, it will also be able to choke the lifeblood of the Western Regions and other countries, which makes Li Er how unmoved.

Cheng Biting Jin Niu Jinda saw that Qian Huan did not react and looked down at the lectern, he couldn't help but be angry, Cheng Biting Jin walked towards Qian Huan, Niu Jinda shouted to get out of class, all the children left the classroom, and Cheng Biting Jin whispered in his ear.

'It's all been exchanged for you Hui Yanghou, why are you still not satisfied,'

Qian Huan said with a sad face.

'Uncle Cheng, I don't care what Huiyang is waiting for, what I want is for my brother to lift the ban, and Chengqian's position as the crown prince will be returned to him soon, he wrote the day before yesterday that he can't hold it anymore. ’

'You take Hui Yanghou back first, Your Majesty will naturally lift the ban on a few of them, why are the usually smart heads so stupid, go and thank you. ’

Qian Huan then stepped off the podium and came to Li Er. 、

'Your Majesty,'

Li Er questioned.

'Finished?' ’

'It's over. ’

Li Er picked up the broom and rushed towards Qian Huan,

'I return you Hui Yanghou, you just thank Your Majesty? Didn't you take me seriously, Hui Yanghou's title also insulted you Qian Huan? You stand still, and if you run a step, I will shoot you with a bow and arrow. ’

Qian Huan stopped, turned around and saw Li Er holding a bow and arrow aimed at him, took a step back, the arrow flew in Qian Huan's ear in an instant, and Qian Huan hurriedly knelt on the ground,

'Hui Yang Hou was originally given to me by you. Your Majesty, don't be angry, how about sending the queen mother with a sea mussel that captivates the country and the city. ’

'Now go and send someone to fetch it and bring it to the palace,'