On this day, there is light snow in the 24th solar term.
Although it was called light snow, it actually did not snow. The sun was shining brightly in the sky, and it was still a beautiful sunny day.
Today, Qi Yu wore a light and elegant robe and went to the official school for formal classes.
Yes, today is his first class after taking up teaching.
As soon as he stepped through the gate of Fu Xue, Qi Yu was filled with emotion.
I recall that three months ago, I was still a student at a government school, but now I am holding a coaching post and standing on the lecture platform.
Life changes so quickly!
It was so fast that I couldn't react in time.
Jingle bell bell~~~
The time is up, ring the bell for class!
All the students bowed to greet each other and said, "Welcome to you, Mr. Qi."
Qi Yu spread his sleeves and said kindly: "Everyone, please sit down!"
Then, all the students took their seats.
In fact, Qi Yu did some homework before the class started.
However, it is not lesson preparation.
Mainly to get a feel for the current tutorials.
After watching it, I was disappointed.
Those are books, and they can also be regarded as arithmetic tutorials? Why do they feel like those ancient fossils?
It’s really too old!
Innovation?
That is inevitable and necessary!
But before that, you still have to figure out your positioning. Although it is innovative, you can't mess around.
In essence, my duty is not to cultivate mathematical geniuses, but to help these students pass the imperial examination. If it were not for the needs of the examination, you would ask them to learn, but they would not be willing to learn!
This is called positioning.
In addition, you also need to understand the arithmetic tutorials of this era.
If you are not familiar with these, how can you talk about innovation?
As far as the current era is concerned, the main tutorial on arithmetic is still "Nine Chapters on Arithmetic". Although this ancient method has some systems, it is too primitive and obscure to understand, and it is difficult to apply it smoothly.
What does that mean?
In layman's terms, it means that this ancient method is not only difficult to understand, but also very poor in practicality.
Let’s talk about it in detail.
Addition and subtraction are relatively simple, and multiplication and division are not difficult. Even if they are encountered in the imperial examination, most of them can be passed. Therefore, these are not the key points.
The most feared thing in the imperial examination is those "overs and unders" arithmetic questions, which are a real obstacle. Nine out of ten candidates cannot do it. In their eyes, it is really too difficult.
Think about it, asking these students who don't even have a solid foundation in mathematics to solve equation problems is not asking Wu Dalang to play basketball, forcing others to do something difficult?
Therefore, the focus of my own teaching is to solve this problem.
How to solve the test questions faster, simpler and more intuitively is innovation.
Qi Yu started from the actual situation and created a unique theoretical system. Then, he pondered and improved it in daily teaching, and finally formed a text tutorial.
Yes, a theoretical textbook "The Solution to Profit and Loss" written by Qi Yu has come out.
This book was first reviewed by the official of the government office, then approved by Lord Yu, and finally printed.
Look at the content again.
This book first proposed the concept of ‘unknown numbers’. For example, let a certain unknown number be ‘A’ and a certain unknown number be ‘B’, and then substitute these unknown numbers into the hypothetical formula for calculation.
The theory is easy to create but difficult to teach.
Qi Yu originally thought that this was an easy-to-understand knowledge point, but later he discovered that most students couldn't really understand it at all.
Alas, studying things to achieve knowledge is easier said than done?
There was no other way, so Qi Yu had no choice but to educate them day by day and slowly instill it until they formed this concept and then talked about the way to solve it.
…
The deceased is like a man who never gives up day and night.
Time passed like this day by day.
Qi Yu taught and explained carefully and became a hard-working little gardener.
Results are showing day by day.
Until one day, the students were surprised to find that those arithmetic problems that they thought were unsolvable were actually solved by Mr. Qi's unique theory!
In fact, any arithmetic problem about surplus or deficiency can be solved in a very short time as long as you list it correctly. The efficiency is extremely high.
Therefore, Qi Yu became famous in the government school!
And it is well deserved.
At the beginning, those experienced and experienced teachers dismissed his teachings and even sneered at them.
However, after waiting for a period of time, the old teachers were shocked to find that the students' arithmetic abilities had improved rapidly.
Facts speak louder than words.
In the end, all the old teachers were convinced by the theory of "Profit and Loss Has a Solution", so that later, these old guys also took the initiative to come and sit in on the class.
And the evaluation of Qi Yu's teaching by the government school was unanimously grade A!
Actually, there is a little regret here.
Qi Yu felt that the textbooks could be enriched and the theory of arithmetic better innovated. However, no one was willing to learn this knowledge that had nothing to do with the imperial examination. It seemed that this was the only way to go at the moment.
This is all based on Lord Yu's full support. If it were other local officials, it is estimated that even these would be difficult to achieve.
In other words, the publication of this book is largely the result of chance.
As everyone knows, this seemingly accidental coincidence has injected a new atmosphere into the current Dafeng Dynasty. Although it is not visible yet, as it continues to spread in the future, it will eventually affect this era. Of course, this is a story for another day
.
…
"Mr. Qi, is arithmetic also a kind of learning?"
"um, yes!"
"But why do others call it 'art'?"
Qi Yu thought for a while, then took a turn and explained: "This is right! However, how to make 'art' more practical belongs to the category of knowledge."
"Oh... let me ask you again, sir, in terms of the field of study, is "Profit and Loss Alignment" the top one?"
Qi Yu shook his head decisively and said: "Since ancient times, there has been no first in literature and no second in martial arts. No one can be said to be the top in any knowledge. You must remember that there is no end to learning by studying things to gain knowledge."
"Oh... the students have learned a lesson."
Then, there was a snap!
Qi Yu slapped his ruler and said: "Class is dismissed!"
…
The waves in the sky are easy to fade away, but the heat is hard to stay.
Autumn has come.
This is Qi Yu’s second year of teaching at Fu Xue.
During this period, he balanced the lectures given by professors with his own study, and his life was comfortable and fulfilling. In the Fu School, he was gradually promoted from the original Mr. Qi to a scholar Qi.
Not to mention anything else, as far as his attainments in arithmetic are concerned, he is enough to be called a scholar.
The monthly payment is also pretty good. Liu Quan did the calculations in private and found that after deducting various household expenses, there was still something left over, and the original family wealth was still there.
Qi Yu's career is very stable, and his family is equally gratifying.
At present, Xiaotong's knowledge is getting better and better, and his son Qi Xiao is getting stronger and stronger.
The only thing that is not harmonious is that the relationship between the two siblings seems to be a bit unharmonious.
The little one likes to play behind the big one, but the big one doesn't like the little one being fun and is too lazy to take him.
Haha~~~
This day, someone knocked on the door.
When I opened the door, I saw a messenger arriving with a message.
Huh?
It’s actually a letter from my old friend Qi Jing!