Otaku Engineer in Great Tang Dynasty Chapter 590: Textbook issue~!

The construction of Yanhuang Academy is in full swing, but Li Zexuan is not idle, and it is very hard.

"Oh~! This speed is not good~! It's been almost half a month, and only two textbooks have been written. This speed is a little bit hang around~!"

Li Mansion, West Courtyard, Study Room.

Li Zexuan looked at the two textbooks "Mathematics" (Volume 2) and "Physics" (Volume 1) on the table, and sighed.

If someone hears his words, he will definitely squeeze him. You have to know that compiling teaching materials is done by a great scholar. It is good to be able to compile one book a year, and this product is half a year I compiled two books on the month, but I was still not satisfied. This is going to heaven~!

But Li Zexuan was not satisfied at all. The textbooks he wrote were all reminiscent of the relevant subjects he had learned in school in his previous life with perverted mental energy. The speed is naturally unmatched by others, but even so, Li Zexuan still feels It's too slow, because in half a month, the academy is about to open, and he originally planned to offer four courses to students first, and now there are two textbooks missing-chemistry and geography~!

Of course, the textbooks he compiled are not all made mechanically. It is not about what the modern first-year primary school learns. The first-year students at Yanhuang Academy have different educational systems, which determines their learning content at each stage. .

At the beginning, he wrote "Mathematics" (Volume 1) at Yanhuang Academy. The content in it already covers all the content of the first and second grades of elementary school, but the group of students in the School of Mathematical Studies have already put the first volume Mathematics is almost halfway through, so Li Zexuan will write the mathematics in the second book.

For the two poor textbooks, chemistry is okay, but it is estimated to be very troublesome to teach, because the chemical symbols in them were read according to the English alphabet in the previous life, but they are now in the Tang Dynasty. ………

Imagine the scene then:

"Students, this is the chemical formula of water molecule "H2O" (H2O), come and come, remember it all~!"

2333333, this picture is so beautiful, I dare not think about it~!

As for the teaching material of geography, Li Zexuan didn't know how to start, because he didn't know which parts of Datang's current territory included, how should he compile it~? Don't say give him half a month, he can't make it up even if he gives him half a year~!

But he doesn’t set up this course, and it’s impossible. Regardless of the territorial issues, many concepts in this course of geography are very useful, such as the concept of scale in the map, north, south, left, west, right The concept of east direction, latitude and longitude, contours, contours, etc.

(The ancient maps were not based on the upper north and lower south, left west and right east. Many ancient Chinese maps adopted the setting of upper south and lower north, left east and right west. This may not be the same as the emperor "sit north and face south" It doesn’t matter, this is just convenient for users to watch, but there are also many ancient maps that use the setting of upper, west and lower east. There is no unified rule for this)

As for the latitude and longitude, no one has defined the prime meridian in this era (modern, the longitude line that passes through the original site of the Greenwich Observatory in London, England is called the 0 degree longitude, also called the prime meridian). When he wrote the textbook, It is possible to define the prime meridian as the longitude and latitude that a typical building passes through in Chang'an City, so that after hundreds or even thousands of years, everyone will look at the map according to the longitude and latitude defined by Datang.

In addition to these, the most important role of geography is to make students recognize the world clearly, and let them know that Datang is only occupying a large piece of land on the world map. This is very important for the future era of navigation. the use of.

"Oh~! How should this "Geography" textbook be compiled~? The rest is easy to say, that is, the mountains and rivers in Datang. Where should I look for information~?"

Li Zexuan muttered his chin, lost in thought.

"Msang Gong~! Are you still busy~? This is the iced mung bean soup just made by my concubine, so stop and try it first~!"

At this moment, the door of the room "squeak" was pushed open from the outside, and then Han Yuxi, in a thin white skirt, walked in with a small bowl braving the slightest chill, she saw she was lying on her stomach Li Zexuan, who was concentrating on the table, couldn't help but feel distressed slightly.

"Oh~! The lady is here~!"

Li Zexuan returned to his senses, then stood up and looked at Han Yuxi: "Heh~! What are you doing so hard for the lady in this hot day~? Look at you, let the people below do these tasks~ Come here and sit down~!"

Han Yuxi smiled, put the mung bean soup on a few cases, and then said dissatisfied: "Msang Gong, you also know that it is a hot day~! Then you have put yourself in the house every day~! I told you My mother is worried that you will make yourself bored and sick~! The concubine knows that the grandfather is working in the college, but she can’t be exhausted by this~!"

Li Zexuan's heart warmed~IndoMTL.com~ stepped forward and grabbed Han Yuxi's catkins, and smiled slightly: "Lady, don't worry, the grandfather has time, so why can't I take care of yourself~! Good~"

Han Yuxi rolled her eyes and groaned: "Meng Gong is also a lie~! Who says people with kung fu are not afraid of heat~! Lu Guogong and his old man have pulled several carts of ice from our house before, and you still Want to fool me~?"

"Ahem~! This..."

Li Zexuan immediately concluded, Han Yuxi was right. Although they practice martial arts, although they are not afraid of the cold, they are generally quite afraid of heat, unless you practice the relatively rare internal gong with the cold attribute.

Han Yuxi picked up the small bowl, stuffed it into Li Zexuan's hand, and said: "Okay~! The concubine knows that Xianggong is busy, but you can drink this bowl of mung bean soup first~!"

How can Li Zexuan disagree~? He nodded quickly in response: "Good, good~! I will drink~!"

After that, he drank the mung bean soup in the bowl as if he were drinking, a freely cold and refreshing, from the inside out, it burst out in an instant, and he couldn't help but yell "Fresh ~!"

Han Yuxi smiled, put the bowl away, and then turned around to go out, but she paused slightly at the door and hesitated:

"The Xianggong seems to have encountered something difficult. The concubine's physical ability is limited. I am afraid that it can't help much. However, the Xianggong can go for a walk and relax. Or, doesn't the Xianggong have so many friends~? You can go to them. Help~! There is no need to build a car behind closed doors~! The concubine has come all the way with the help of many people, otherwise, I can’t be married to the mate~!"

After listening, Li Zexuan was silent for a while, and suddenly laughed: "Yes~! Haha~! Lady, you are really my lucky star~!"

………………………

(End of this chapter)