"Congratulations to the host for achieving their first book proficiency. Please select a character lottery or add attributes. ”

Listening to the pleasant prompt, Yang Fan felt that all his efforts were not in vain. Fortunately, I woke up early, and I didn't choose mathematics, but biology.

Why, math is so difficult to read. Letters, numbers are intertwined, and it is impossible to read them quickly at all. As for the creatures, they are all very ordinary sentences, with a small number of words

No, in less than a week, I finished a book. For the system, as long as it is in line with the current growth, there is no compulsory elective. Don't forget, the system wants Yang Fan to be called an all-round master, a biologist, and a master.

Yang Fan preliminarily estimated that after reading biology 15 to 20 times, the proficiency level was full, and the more simple and easy-to-understand the course, the faster the proficiency.

Especially after the proficiency reaches 70%, every time I read it, it is a 4 to 5 degree growth.

"Please choose from the host. ”

"I just chose the lottery. ”

A big turntable was formed in my mind, and the turntable was engraved with dense people, the turntable was so big that it seemed to break through the heavens and the earth, and the name of the person was small, like ants. It can be seen that in the long history, the master figures, the car bucket.

"Stop. "The turntable has turned a few rounds,

"The character is determined, seventeen-year-old Wang Xizhi. ”

Yes, yes, Yang Fan is very happy, the young Wang Xizhi's calligraphy is much better than that of himself who has not started.

In the next ten days, Yang Fan was lucky to reach three, and won the 40-year-old basketball king Jordan, the 21-year-old singer Mike Jackson, and the 11-year-old Li Yuanba.

are all extremely bullish characters, Yang Fan is not willing to use them directly, so he stores them first.

Seeing that it was about to be the end of September, it happened to be Friday, and after the math teacher Chen finished the lecture, he said at the end: "Everyone, pay attention, Feng Yao, the math teacher who teaches the first year of high school, everyone must have heard of it." Tonight, in the lecture hall, select high school Olympiad League students for special training. You can participate in everything. ”

This means that those who have little faith and power should not be fooled. He swept the faces of the six people who had been named, and only after receiving their affirmative responses did he leave happily.

Of course, Yang Fan also agreed, and he didn't have time to do any questions on the set of papers he gave last time. I heard that several other people have consulted Chen Changyi several times, but they are the only ones who don't care. Blame the embarrassment.

And Feng Yao is a famous math teacher. If he likes to teach one or two, maybe he will be able to make a big progress.

Yang Fan went home, had dinner, and arrived at the lecture hall before 7 o'clock. The eleventh holiday is coming soon, and there will be classes tomorrow and Saturday after the holiday, so there are people in each class.

Yang Fan swept around and found a few people in his class in the middle, but there were no seats on the side. I don't seem to be recognized yet. I found a corner and sat down casually, waiting for the class to start at 7 o'clock.

Feng Yao stepped into the classroom and was a little displeased when he saw the black head. There are as few as three or five people in each class, more than ten people, and there are more than one hundred people in the first and third years of high school.

He graduated from the Normal School and went to graduate school in Mizuki, with a proud temperament, and he has been a scholar since he was a child. If it weren't for the old principal's invitation, he wouldn't have come to the high school to become a teacher.

He still has an unfulfilled wish in his heart, the Olympiad that year, in the international competition, did not win a medal. Although I had a fever in those days because of the lack of adaptation to the soil and water, failure is failure, and no amount of excuses is useless.

Then let's do it for the students. For this concept, he has always been only willing to teach high school students, because the first year of high school is the easiest to find good seedlings, and if they are pleasing to the eye, they will be taught under his command for two or three years, but unfortunately, there are fewer and fewer people with aura.

"Listen, you people, how many people you can keep today, it depends on your luck. If you don't have aura, I don't want any of them, I don't care if I take the Olympiad test or not. ”

As soon as the words came out, they leaked domineeringly. The students were quiet, and sure enough, the rumors were true, and they were arrogantly in a mess. I heard that the two high school math classes he has taken over the years rarely follow the syllabus, and he teaches wherever he wants.

The average score of the math test in these two classes is also mediocre, but there are many top math students. Every time he took the exam, at least most of the top scores were brought out by him.

Some students who have been taken by him in the second and third years of high school know that Teacher Feng is talented, but he is not good at teaching. The resources are only for the top, and he replies when ordinary students ask questions, you are so stupid, how can I teach, ask people yourself, or go to turn the book.

is such a character, and the math bully still identifies him.

Feng Yao picked up the chalk and wrote a number on the blackboard: 142857.

"You see the number. That's a very interesting number. If he multiplies by 1 to 6 respectively:

142857×1=142857

142857×2=285714

142857×3=428571

142857×4=571428

142857×5=714285

142857×6=857142

"Well, the answer is not interesting, turning around, it is just a sequence of numbers, and it is also six digits. ”

Hey, that's interesting. Yang Fan is also interested, this Teacher Feng really lives up to his reputation, and his teaching is different from ordinary teachers.

All the students in the audience stared at these arithmetic questions, and the more they watched, the more amazing they felt. Why is this so?

Feng Yao continued: "There are many magical places about numbers in the mathematical world, some of which are discovered by accident, and some of which are inevitably discovered. It can be seen that in the world of mathematics, we are just getting started. Let's see.

142857×7=999999

The sudden change in results is unexpected. Although I think it's very ordinary, this last topic makes people feel wonderfully beautiful. It's weird.

Yang Fan took out a pen and paper and calculated it in his notebook, from one to seven, there was no mistake.

How so. Why multiplying by 7 changes so much. Not only did Yang Fan have doubts, but everyone here was muttering in their hearts.

Seeing that the students were very enthusiastic, Feng Yao was in a much better mood, mathematics is often boring, not as applied to life as physics, not as many changes as chemistry, but mathematics exists, and it is absolutely the truth. Even to the edge of the universe, it is the only one. This is almost a cosmic law.

Some people say that it is because God created man in 7 days, so every earthling person will see the last change and will rise from the bottom of their hearts with a different sense of beauty. ”

The discussion instantly became louder, and the students talked to each other. Math class talks about theology, is that good?

"Of course, as a math teacher, I definitely don't believe it, not to mention that we Chinese have nothing to do with God at all, our ancestor is Nuwa." ”

"Haha".

"Why there is this law, it is impossible to say, such a major task, we should leave it to future generations. ”

There is also division:

9÷7=1.2857142857142857142857142857......

99÷7=14.142857142857142857142857142857......

999÷7=142.7142857142857142857142857......

......

Division is the wireless cycle of this number, eternal and eternal, from generation to generation.

Ladies and gentlemen, this number, from the beginning of its appearance, will continue to be passed down until the destruction of the universe. This is the beauty of mathematics. ”

The applause rang out, and at this moment, the students who were listening to the lecture suddenly realized that mathematics is not blindly boring, and those numbers are really beautiful. Teacher Feng Yao NB.

Yang Fan clapped his hands excitedly, and suddenly felt that mathematics was so interesting, why hadn't I found it before.

Feng Yao pressed his hands lightly a few times, the applause stopped, and he said: "I am actually very opposed to cramming mathematics education, which completely shatters the interest and aura of students. It's just that the general environment is like this, and I can only follow the trend.

I hope that all students will remember the achievement and love when they first came into contact with mathematics and made 1+1=2. ”

There was applause again, Feng Yao, the teacher, is really personal, learning mathematics in his hands, he will definitely be able to improve.