Li Yan had no objection to the third brother teaching her mathematics. Even if her math skills were better than their accountants, since the third brother said he wanted to teach her, he must have made a breakthrough in mathematics based on his ability.
"Yes." So Li Yan agreed simply.
"In this case, let's call Li Xin over too." Li Ke thought for a while. Anyway, one sheep is herding, and a group of sheep is herding, so why not bring them together.
"Okay." Li Yan agreed.
"That's it, Pei Xingjian." Li Ke said loudly.
"I'm here." Pei Xingjian, who was standing outside the account, quickly walked in.
"Go to Deputy Protector Li's house and ask Miss Li Xin to come over and tell General Li that I want to teach them both something." Li Ke said.
"Yes!" Pei Xingjian saluted and turned to leave.
After receiving the news, Li Daozong naturally would not stop him, and Li Xin naturally followed Pei Xingjian back with curiosity on his face.
After Pei Xingjian left, Li Daozong found Mrs. Li: "Madam, you said this..."
"What are you worried about?" Mrs. Li glanced at Li Daozong.
"I'm just afraid that His Highness will fall in love with them..." Li Daozong hesitated for a moment and then said it directly. He naturally knew the beauty of his two daughters.
"They happen to be on the fifth server, and they haven't released the fifth server. What are you thinking about?" Mrs. Li rolled her eyes at Li Daozong. If the fifth server came out, it would be possible, but it is impossible not to release the fifth server. Unlike " "Zhou Rites" does not match, but the Tang Dynasty is almost the same as "Zhou Rites" in this aspect.
"Not Yan'er. There was something wrong with her yesterday." Li Daozong muttered. As an old father, although ancient people did not have the term "little cotton-padded jacket", most of them favored boys over girls. In fact, among wealthy families, because There is no shortage of money and other aspects, and there are many people who like my daughter.
Although they still adhere to the ancient concept of marriage, this does not conflict with liking their daughter. Every old father who marries his daughter always has complicated thoughts.
"Even if it's true, isn't that a good thing? One day, you can use the pretext of asking Zhaojun Li to adopt Yan'er as an adopted daughter, and everything will be solved." Mrs. Li thought far enough.
"Hey, forget it, I'm going on patrol. Madam, you can do more research when they come back." Li Daozong said helplessly.
"I understand." Mrs. Li nodded.
Li Xin followed Pei Xingjian to Li Ke's place and found that her sister was also there. She knew that her sister was here, but she didn't know why His Highness asked her to come.
"Xin'er has met brother." When Li Xin saw Li Ke, he hurriedly saluted him.
"Just call me third brother from now on." Li Ke waved his hand.
Li Xin hurriedly agreed, and then looked at his sister calmly. My sister has inquired about His Highness’s three meals a day, oh, or in other words, three meals a day in the entire vicinity of the Red Sea, because of the workers.
So my sister came here in time for lunch. It only took more than an hour before and after, but the relationship has changed? What did the sister say to the brother?
"Third brother asked you to come. It was your sister who said she wanted to learn from third brother. I am thinking about bringing you with me. I will teach you mathematics today, that is, arithmetic." Li Ke said, what Li Yan told her, Li It is naturally impossible for Ke to say it.
"Okay." Li Xin would not refuse to learn something, even if she had already mastered "Zhou Bi Suan Jing", "Nine Chapters of Arithmetic", "Island Arithmetic Sutra", "Wucao Suan Sutra", "Sun Zi Suan Sutra" Classics", "Five Classics Arithmetic", "Ji Gu Arithmetic Classic", "Zhu Shu", "Shu Shu Ji Yi".
"Come on, come on, let me give you textbooks first." Li Ke asked Yang Anning to take out the textbooks prepared for them. Speaking of mathematics, Li Ke was the first to teach it. He started teaching it a few years ago. Yue Almost all the shopkeepers, accountants, etc. who come to the trading company have mastered modern Arabic numerals. As for this world, let's call it Li Ke's numerals.
Although it has been invented now, it has not actually formed a unified and complete standard. Around 700 AD, the Arabs conquered India, absorbed some local numbers, then optimized and spread them, and finally became modern Arabic numerals.
But this world is different. The numbers in this world have long been spread to Arabia and other regions through Yuelai Trading Company. Even many firms in Datang that trade with Yuelai Trading Company understand these numbers.
In fact, it doesn't matter who invented it first. Anyway, Li Ke has sorted out part of the modern mathematics process. At first, he sorted it out himself. When he found the underground library some time ago, Li Ke found a complete set of mathematics teaching textbooks.
This was much simpler. After rearranging and printing these mathematics textbooks, Li Ke took them out. From then on, it became a must-learn course for the shopkeepers and accountants of Yuelai Trading Company.
"Primary school textbook? What do you mean?" Li Xin took the math textbook in his hand and asked with some confusion.
"It's just the elementary school textbook." Li Ke said with a smile.
"Ah?" Li Xin was speechless. I have basically finished studying the book on arithmetic. You want me to learn elementary school?
"Some of the questions here may not be easy for you to solve." Li Ke said with a smile.
"I don't believe it." Li Xin obviously didn't believe it.
"Then you do this." Li Ke turned to the back of the textbook and found a fifth grade example question. This set of mathematics textbooks is the latest. To be honest, after working for many years, Li Ke turned to these latest difficult mathematics questions for fifth grade elementary school. Sometimes he doubted life.
Although he has worked for many years and has indeed returned a lot of mathematics to teachers, but is this a fifth grade question? Are you kidding me? It's not that Li Ke underestimated ancient mathematics, it's just that he felt that Li Xin could solve this problem, but it might not be that easy.
Not only that, Li Ke found a complete set of modern abacus teaching materials from the library and added it to this set of mathematics textbooks.
There were no calculators in ancient times, but abacus was not bad at all. After all, many of the data for our first atomic bomb were typed out by abacus! That's how awesome it is.
After Li Xin read the question, he was dumbfounded. Is this an elementary school question? A pair of twins eat milk candies and fruit candies. How many days will it take for one of them to finish eating alone and how many days will it take for them to finish eating together? What are these?
Li Xin read the question carefully several times. She had several algorithms in her mind, but they were not very accurate and she always found it difficult.
"Third brother, are you sure this is a bachelor's degree?" Li Xin was not well.
"Of course, this is elementary school. In the school I am about to open, these are basic teachings. Oh, by the way, there are also the letters and pinyin, which I improved. You should all follow suit." Li Ke will He also took out the Chinese primary school textbooks. These are the teaching materials he compiled and will be taught in the Royal Academy in the future.
It's just right at the moment, let's start with the two of them, but they just want to learn pinyin and letters. Mainly, many characters in modern mathematics have special meanings. Li Ke feels that he doesn't have the ability to change it into a complete ancient version, so here it is. Bar!
As for the alphabet issue, what's wrong with this thing? If someone else takes something from you, doesn’t it become your own?
