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"quick calculation champion"
1955 One day, in the classroom of Class 4, Grade 2, Nantong Middle School, Jiangsu Province, more than forty students were lying on their desks answering algebra questions. When the pen points to the paper, the sound of the answer sheet is so dense and urgent. This is an exam to test students' answering skills and operating speed. The examination questions were heavy and difficult, and two papers were issued.
The invigilator is a burly physical education teacher. He walked back and forth twice in the classroom, only 20 minutes after returning to the podium, and a thin student left his seat with a test paper.
"What's the problem?" The invigilator asked.
"I handed in my paper." That classmate said.
"Are you ready?" The invigilator was surprised. The students couldn't help looking up at the first classmate who handed in the paper and casting admiring eyes. At this time, several students with good skills in the class have finished the first question.
The invigilator looked at the neatly written answer sheet and asked with concern, "Did you read it again? It's still early. "
"I have seen it. The post office is waiting for me to help calculate a data. " After that, he handed in his paper and hurried out of the classroom.
The invigilator didn't know that the student with the student number of 5820 turned out to be a classmate of Yang Le and had been handed in for the first time.
In fact, the routine of Yang Le's first examination paper was formed as early as the senior grade of primary school. Once, the school held a quick calculation competition, and he won the first place with the fastest speed and best results, became the "quick calculation champion" and obtained a certificate.
His title of "quick calculation champion" remained until high school. In a painting exam, only three students in the class passed because the teacher's question was very difficult. Yang Le was not stumped by the question, but also got the best grade in the class at the fastest speed.
Amazing speed comes from amazing perseverance and hard work. In the whole middle school stage, Yang Le was like a tireless bee, flying in the flowers of mathematics all day, collecting pollen and brewing honey. He walked into the world of mathematics and explored its mysteries. The content taught by the teacher in class is far from his requirements, and his thirst for knowledge is getting stronger and stronger, so he gradually develops a habit. He comes home from school every day, spends 120 minutes to finish the homework of the day, and then sits in the room behind closed doors, habitually holding his chin in his hand, reading math books and calculating math exercises. He sits for four or five hours at a time, and his mother always urges him to eat and sleep several times.
His desk is full of Chinese and foreign books, such as Lectures on Algebra, Guidance on Algebra Exercises, Lectures on New Trigonometry, and Geometric Proof. Algebra, geometry, trigonometry, he read more than five or six kinds of reference books respectively, and the examples in each book were carefully calculated, without missing a question. In his three years in high school alone, he solved more than 10,000 problems.
There is an old saying: "Reading can break thousands of books, and writing is like a god." Yang Le can become a "champion of quick calculation", which is the result of his extensive reading and numerous questions.
"little gentleman"
In the second semester of senior three in Yang Le, Mr. Lu, a math teacher respected by Yang Le, was seriously ill and even bedridden. The school can't find a substitute teacher at the moment, and the students are very anxious. Teacher Lu is in his sickbed and his heart is in the classroom.
One day, Teacher Lu called Yang Le to his side and said with a heavy voice, "I am sick ... my classmate will graduate soon ..."
Yang Le was moved by the teacher's strong sense of responsibility. He comforted the teacher and said, "Teacher, rest in peace. We can learn by ourselves." Teacher Lu took Yang Le's hand and said, "I think you should take my place in math class."
Yang Le was very excited. This is the teacher's cultivation of himself! Teachers often say to him: "A good mathematician should not only have a flexible mathematical mind, but also have strong oral expression skills." . I remember when I was in Grade One, Mr. Lu organized amateur math groups for some math lovers, and he often came to guide me. On one occasion, Mr. Lu came to the math group with illness, and after explaining the method of summation of trigonometric series to the students, he asked Yang Le to explain a difficult problem to the students. After Yang Le finished speaking, Teacher Lu said to the students, "Yang Le made it very clear. You can invite this' little gentleman' to give a lecture in the future. "
Another physics class, a classmate asked the teacher a difficult problem. The young physics teacher is in the middle of calculus, but he can't figure it out. He is standing on the platform. The teacher saw Yang Le want to talk.
"Yang Le, can you count?" The teacher asked modestly.
"I'll try." Yang Le went to the podium and quickly solved the problem. The teacher is very happy. He said to the class, "Yang Le is really a' little gentleman'."
This time, Yang Le heard that Miss Lu was going to call herself "Miss Xiao" again. Seeing the teacher's illness, he felt uneasy. He held back his tears, silently looked at the thin teacher and nodded gently.
Teacher Lu's condition is getting worse and worse. Before he died, he once again called his favorite student Yang Le to the bed. Yang Le was very sad to see Mr. Lu, who had devoted his whole life to education, with a sunken eye socket and pale face.
"I am graduating soon ... Yang Le, what major are you going to take?" The teacher asked him. "Take the Department of Mathematics for example." Yang Le answered without thinking.
The teacher smiled knowingly, nodded with peace of mind, and said to Yang Le earnestly, "It's very difficult and nerve-racking to do math ... but I know ... you are not afraid of suffering and wasting your brain ..."
Yang Le fully understands the teacher's mind, which is his concern and encouragement.
After the death of Teacher Lu, Yang Le turned his memory of the teacher into the power of action and studied harder.
"the first step"
When Yang Le was in the third year of high school, one day, two people suddenly came from Beijing, looking for Miss Huang, the head teacher in Yang Le. Someone took a manuscript from his bag and gave it to Mr. Huang. Mr. Huang saw that it was Yang Le's handwriting.
It turns out that these two comrades are editors of a mathematics magazine in Beijing. Not long ago, they received a very insightful math paper. The author turned out to be a middle school student. Surprised and suspicious, the editor rushed to Nantong Middle School to make an investigation.
"Yang Le can write this manuscript." The head teacher knows his students very well. Say that finish, he called Yang Le, and the editor gave Yang Le an "oral test" on the spot. Yang Le answered questions quickly and gushed. The editor went to the math teacher again to find out the situation. The math teacher took out a math notebook more than a foot thick from the bookcase and said to the editor, "This is all the exercises of Yang Le's calculus at ordinary times, but it is only a part."
The editor turned over the notebook carefully, but his heart was full of joy. One of the comrades said: "This is a rising mathematical star in Ran Ran!" "
Yang Le's diligent study was praised by Nantong Municipal Committee of the local Communist Youth League. In a summary of the Youth League Committee in 1956, the story of Yang Le was written, calling on young students to learn from him.
From then on, Yang Le, like a lively little tiger with wings, dashed towards the mysterious field of mathematics. He often thinks that those who dare not attack are just slaves of science; Only by daring to attack can we learn from the experience of our predecessors, expand their achievements and create a new situation.
In his studies, Yang Le never sticks to the rules. He dares to innovate and explore. On one occasion, he put forward his own ideas on the proof that the perpendicular lines of three sides of a triangle intersect at one point (center of gravity). The traditional proof method was put forward by the famous German mathematician Gauss. Yang Le noticed the fact that the perpendicular lines of the three sides of a triangle intersect at one point (the outer center), and thought, can we prove the vertical center theorem by another simple fact, that is, the bisectors of the three inner angles of a triangle intersect at one point (the inner center)? After repeated research, he finally found the key to solving the problem and proved the theorem of caring with heart.
Hope and success always belong to diligent people. After graduating from high school, Yang Le finally got an excellent score of 98.5 in college entrance examination mathematics, and was admitted to Peking University Mathematics Department.
Note: This article was originally published in previous newspapers, but now it can't be found online.