The construction of Yanhuang Academy is in full swing, but Li Zexuan is not idle either, and is very hardworking.
"Oh~! This speed is not good~! It has been almost half a month and I have only written two textbooks. It is a bit unsatisfactory to continue at this speed~!"
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 heard what he said, they would definitely beat him up. You must know that compiling textbooks is done by well-educated scholars. It is good to be able to compile one book a year, but this guy compiled it in half a month. Two books, but I’m still not satisfied. I want to go to heaven~!
But Li Zexuan was not satisfied at all. The textbooks he wrote were all about using his abnormal mental power to recall related subjects he had learned in school in his previous life. His speed was naturally unmatched by others, but even so, Li Zexuan still felt it was too slow. , because in half a month, the academy will start school, and he originally planned to teach students four courses, but now there are still two textbooks missing - chemistry and geography~!
Of course, the textbooks he compiled are not all mechanically copied. It does not mean what the first grade of modern primary school learns, and what the first grade of Yanhuang Academy learns. The two schools have different academic systems, which determines that the learning content at each stage is also different.
At the beginning, the "Mathematics" (Volume 1) he wrote at Yanhuang Academy already covered all the contents of the first and second grades of elementary school. However, the students in the Mathematical School had already learned the mathematics in the first volume. It's almost halfway, so Li Zexuan wrote out the mathematics in the second volume.
The two textbooks that are still lacking are chemistry, which is okay, but it will probably be very troublesome to teach, because the chemical symbols in it were read according to the English alphabet in his previous life, but now it is the Tang Dynasty...
You can imagine the scene then:
"Students, this is the chemical formula of water molecule "H2O", come on, come on, remember it all~!"
2333333, this picture is so beautiful, I dare not even think about it~!
As for the geography textbook, Li Zexuan didn't know how to start, because he didn't know where the current territory of the Tang Dynasty included. How should he compile it~? Don't say give him half a month, even if you give him half a year, he can't make it up~!
But he couldn't do it if he didn't set up this course. Leaving aside the issue of territory, many concepts in geography are very useful, such as the concept of scale in a map, the directions of up, north, down, south, left, west, right and east. Concepts, concepts of latitude and longitude, contours, contours, etc.
(Ancient maps do not follow the arrangement of up, north, down, south, left, west, right east. Many ancient Chinese maps adopt the arrangement of up, south, down, north, left, east, and right west. This may have something to do with the emperor's "sitting north and facing south." This is just convenient for users to view, but there are also many ancient maps that use the setting of upper west and lower east. There is no unified rule for this)
Regarding longitude and latitude, no one has defined the prime meridian in this era (in modern times, the longitude 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, he could actually define it. The prime meridian is defined as the longitude line that a typical building in Chang'an City passes through. In this way, hundreds or even thousands of years later, everyone will look at the map according to the longitude and latitude lines defined by the Tang Dynasty.
In addition to these, the most important role of geography is to let students understand the world clearly and let them know that the Tang Dynasty only occupies a palm-sized area on the world map. This will be of great use in the future Age of Discovery.
"Oh~! How should I compile this "Geography" textbook~? Everything else is easy to mention, just the mountains and rivers in the Tang Dynasty. Where the hell should I find information~?"
Li Zexuan rubbed his chin and fell into deep thought.
"Ms. sir~! Are you still busy~? This is the iced mung bean soup I just made. Please stop and try it first~!"
At this moment, the door of the room creaked and was pushed open from the outside. Then Han Yuxi, dressed in a white thin skirt, walked in with a small bowl filled with chilly air. She saw that she was lying on the table condensing. Li Zexuan, who was thinking hard, couldn't help but feel slightly distressed.
"Oh~! The lady is here~!"
Li Zexuan came to his senses, then stood up and looked at Han Yuxi and said: "Ha~! Why are you putting so much effort in this hot day~? You're so hot, just let the people below do the work~! Come here quickly Sit~!”
Han Yuxi smiled, put the mung bean soup on the table, and then said dissatisfied: "My husband, you also know that it is very hot now~! Then you have locked yourself in the house every day recently~! My mother and I are worried You will make yourself sick~! I know that my husband is busy with school affairs, but I can’t exhaust myself because of it~!”
Li Zexuan felt warm in his heart. He stepped forward and grabbed Han Yuxi's cattails. He smiled slightly and said, "Madam, don't worry. My husband is busy and the heat can't do anything to me~! Just take care of yourself~!"
Han Yuxi rolled her eyes and said angrily: "My husband is lying again~! Who said that people with kung fu are not afraid of the heat~! Mr. Lu Guogong took several carts of ice cubes from our house before, and you still want to fool me. ~?"
"Ahem~! This..."
Li Zexuan immediately concluded. Han Yuxi was right. Although those who practice martial arts are not afraid of severe cold, they are generally quite afraid of heat, unless you practice the relatively rare internal martial arts with cold attributes.
Han Yuxi picked up the small bowl, stuffed it into Li Zexuan's hand, and said: "Okay~! I know that my husband is busy, but you should drink this bowl of mung bean soup first~!"
How could Li Zexuan disagree~? He nodded quickly and said, "Okay, okay~! I'll drink it now~!"
After that, he drank the mung bean soup in the bowl like a cow drinking. A wave of wanton coldness and coolness burst out from the inside out in an instant, making him couldn't help but shout "Refreshing~!"
Han Yuxi smiled, put away the bowl, and then turned around to go out, but she paused slightly at the door and hesitated:
"My husband seems to have encountered some difficulty. My abilities are limited, so I'm afraid I can't be of much help. However, my husband can go out for a walk and relax. Or, doesn't my husband have so many friends~? You can go to them for help. Ah~! There is no need to work behind closed doors~! I have relied on the help of many people all the way since I was a child, otherwise, I would not be able to marry my husband~! "
After hearing this, Li Zexuan was silent for a long time, then suddenly laughed and said: "Yes~! Haha~! Madam, you are really my lucky star~!"
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