After studying together for most of the day, Lin Wan discovered after observation that this boy from the first science class really liked reading arithmetic, and he was very immersed in it, and seemed to be unable to extricate himself from it.
Arithmetic, is it really so charming?
This kind of mathematical characters invented by foreigners is too abstract. To understand it, you must have excellent logical thinking. Even Lin Wan, who is talented and intelligent, will have a headache every time he encounters something he does not understand when reading an arithmetic book. It lasts for a long time.
I would still feel irritable in my chest, and I couldn't help but secretly curse the famous saying from my hometown, "Mother Xipi".
When Yu Hua heard these words, he smiled and answered while packing up his books: "Fortunately, arithmetic is a tool for studying the world. When you look at arithmetic, you can often see various things and the essence of the world, so I
I prefer watching arithmetic..."
"This statement is quite interesting." Lin Wan heard this new statement about arithmetic, pondered for a while, and responded.
Arithmetic is a tool for studying the world.
This was the first time Lin Wan heard this statement.
"Goodbye, classmate Lin Wan."
Seeing Lin Wan deep in thought, Yu Hua, who had already packed his books, stood up, put the books under his arm and held them in his hands, smiled and said goodbye softly.
"Goodbye, classmate." Lin Wan came back to her senses and smiled slightly.
After saying goodbye, Yu Hua had no intention of leaving with Lin Wan, and left the reading room on his own. There were many students in the library, the gentle librarian counted the borrowed books, and the two aunties cleaned up.
…
After leaving the library, I followed the flow of people to the dormitory area. After a while, I returned to the second-level dormitory.
The conditions of the dormitory in Room 4 are average. The area is not large, about 12-3 square meters. It is not warm in winter and not cool in summer. It has a balcony to dry clothes and no independent toilet. You have to go to the shared toilet at the end of the corridor for convenience at night.
There are a total of eight beds in the dormitory, and there are six students living there, all of whom are in the first science class. Their deskmate Zhou Yuan lives in room two.
"Squeak!" I came to the door of the dormitory and pushed open the old wooden door that was full of age and almost antique. A faint smell of kerosene filled the air. There were weak and dim lights in the dormitory. The light source was two gourd-like lights.
Shape of kerosene lamp.
Five students were studying at their desks, reading and studying under the dim light of kerosene lamps.
They arrived late today and failed to get a seat in the library, so they had to go back to the dormitory to put the desks together and light the kerosene lamp.
"Yu Hua, you're back."
Zhou Yuan, who was closest to the door, heard the noise, looked up at Yu Hua who pushed the door open, and rubbed his bloodshot eyes.
Seeing this, the other four students raised their heads one after another, nodded towards Yu Hua, smiled, and then continued reading.
Regarding Yu Hua's ambition, some in Neo-Confucianism Class 1 agreed, some opposed, and some scorned it. However, these four students adhered to the principle of neither opposing nor rejecting.
After all, everyone has his or her own ambitions.
Besides, people have good intentions and there is no need to look at it with colored glasses.
"You're back, would you like to save a seat for you next time?" Yu Hua nodded in return to the four smiling classmates and glanced at Zhou Yuan's two red eyes. He didn't know whether it was because of the dim light or the kerosene lamp.
Xun, turned around, closed the door, and whispered.
Zhou Yuan shook his head, rubbed his eyes, and said, "No, you can read with a kerosene lamp."
"Reading in dark light is very harmful to the eyes. If you don't want my myopia to get higher and higher, it's better to use electric lights, which will cause less damage to the eyes." Yu Hua sighed, found his bed, put down the book, and responded.
When Zhou Yuan heard this, he immediately became interested and a little curious: "Will dark light hurt your eyes?"
As soon as these words came out, not only Zhou Yuan, but also the other students who were writing and reading stopped their movements and focused on Yu Hua.
"Classmate Yu Hua, are you telling the truth?" Liu Tao, the ninth in the class, subconsciously pushed up the glasses on his nose, looked at Yu Hua, and asked curiously.
Except for Yu Hua, the other five people in Room 2, including Zhou Yuan, are all short-sighted and wear different styles of glasses. They are often called four-eyed idiots by students in the literature class.
I heard something from Yu Hua today. It turns out that the cause of myopia is also related to the reading environment?
For the sake of the eyesight of these immortal classmates, Yu Hua was not impatient at all. He nodded and explained: "Dim light will increase the burden on the eyes and easily cause visual fatigue, eye soreness, blurred things, etc. Think about it for yourself, in kerosene
When you read a book in a light environment, do your eyes become blurry and astringent after reading for a while? "
In this era, neither the government nor students have any awareness of protecting eyesight.
Myopia has become very common. Basically, nine out of ten students are myopic. In the past, the degree of a student's glasses was used to measure whether a student worked hard or not.
Eyesight is undoubtedly very important to people, and Yu Hua is not without knowledge about protecting eyesight.
"Indeed."
Zhou Yuan and Liu Tao were stunned when they heard this, and the rest of the students were also lost in thought.
Everyone recalled in their minds that every time they used a kerosene lamp to read, their eyes would become sore after not being able to read for a long time.
What Yu Hua said is absolutely correct.
At this moment, as everyone came to their senses, Zhou Yuan, Liu Tao and other classmates looked at each other, stood up one after another, with serious faces, and the six of them bowed to Yu Hua in unison: "I would also like to ask Yu Hua to teach you how to protect your eyesight."
Advice!
As a disciple, I would like to pay my respects to Yu Hua as my teacher.
No one wants to experience myopia, and no one wants to get myopia worse and become blind.
"We are all classmates, how can we give you advice?"
Yu Hua quickly stood up. He couldn't bear the courtesy of these immortal classmates. Although it felt very good, he bowed to everyone in return and said seriously: "When everyone is studying, it is best to use electric lights. The wattage should not be too high.
It is not easy to be too small. Keep a moderate light, and the lighting in the library reading room will be very suitable. After classes are over every day, we need to go to the library as soon as possible to grab a seat."
After hearing Yu Hua's explanation, all the students in the dormitory nodded, listening carefully and remembering it as if they were listening to a teacher's lecture.
"In addition, everyone should have a normal way of using their eyes. First, read a book for forty minutes, then take a five-minute break to look at distant scenery. Second, when reading, keep a distance between the eyes and the book. Third, when reading,
When your eyes are tired, you can give your eyes an eye massage." Yu Hua continued.
"Back to classmate Yu Hua, what is the content of this set of eye protection massage and what is its name?" Liu Tao carefully remembered what Yu Hua explained and then asked.
Yu Hua took a deep breath and without hesitation took out the eye exercises that were born more than 20 years later: "I call it eye exercises. It can relieve eye fatigue. The specific content is to massage the facial acupuncture points. I will draw a few pictures later.