Math highlights? A treasure handed down from ancient times? I think this is our ancestral treasure. Dad may have read this book, otherwise how can he be so good at math? Hey, hey, since dad opened it, so did I. So I opened the book, and suddenly a light flashed, and I fainted.
I don't know how long it took. I opened my eyes and drifted off to see a figure. After a few minutes, I regained my sight and found that the figure was actually an elf in a fairy tale! Suddenly, he spoke:
"You must be Wu Di, a descendant of the Wu family 1 18!" "You ... you can say ... talk!"
"Of course, every animal in the mathematics kingdom, even every stone, can talk."
"The kingdom of mathematics?"
"yes! It is the kingdom of mathematics. Well, it seems that you don't know what to do. To tell you the truth, Wu Yong, the sixth generation ancestor of the Wu family, created a mathematical treasure house, which is the mathematical kingdom, and Wu Yong set a protective cover for the mathematical treasure house, which only his descendants can see. "
"Oh ~ turned out to be a collection of mathematical works created by Wu Yong! Then how do you get back to the real world? "
"Then you have to help people in the mathematics kingdom solve ten things!"
"Ok, then I'll start!"
"Hey, wait, I'll give you a bracelet, maybe you'll come in handy!"
So I put on this bracelet with colorful gems and set off happily. First, I saw a gardener with a sad face. I asked him what was wrong, and he said:
"Well, my master told me that in this fish pond with a circumference of 1200m, a tree is planted every six meters. I don't know how many trees to prepare. "
Fortunately, I learned this question, so I said to him:
"This is a problem of planting trees on a closed line. When planting trees on the closed line, the number of trees and segments is equal, that is, 1200 ÷ 6 = 200. "
Next, I did all this with my brain: I helped the carpenter calculate the length of the short wood he cut, I helped the forgetful teacher calculate his age, I helped the teacher calculate how many books he had and how many students he had ... The last thing was to help the math kingdom defeat the math demon. In order to defeat the math demon, I must answer his question.
It asked, "If 1 is the Year of the Rooster, what year is 2003?" ? I thought and thought, but I still couldn't figure it out. It suddenly occurred to me that the bracelet that the elf said would be useful to me. I touched the bracelet and the elf appeared. It said, "It's simple. Just use 2003 ÷ 12 = 166 ... 1 1 from the year of the rooster. Suddenly another light flashed and I fainted again.
When I opened my eyes, I found myself lying in bed. I thought: this is an interesting dream! I stretched myself and found a bracelet exactly like the one the elf gave me. Ah! Isn't it a dream? I can't believe it. I took off my bracelet and looked at it. That's really the bracelet that the elf gave me. There is a sentence written on the bracelet: "hobby is the best teacher!" " "
From then on, I fell in love with mathematics and was admitted to the mathematics department of Tsinghua University, which I most yearned for. I can achieve so much, not because of the experience of the mathematical kingdom, but because of the words on the elf bracelet.
Extended data
The Adventures of Mathematics in Li Yupei (senior grade of primary school) features three small and medium-sized mathematics stories written by Professor Li Yupei: bwana devil, mathematics commander Niu Xiaotun and Dr. Qiqi. According to the readers' mastery of mathematical knowledge and thinking ability in the fourth, fifth and sixth grades of primary school, the mathematical knowledge points involved in the story are summarized, and interesting tests are attached for young readers to practice.
Professor Li Yupei, Department of Mathematics, Capital Normal University. 1990 was awarded the title of "Excellent Popular Science Writer since the founding of the People's Republic of China" by the Chinese Popular Science Writers Association.
Starting from 1977, he has been engaged in the creation of popular mathematics. Over the past 30 years, more than 100 popular science works have been published, about100000 words. His works have won the 4th National Book Award, the 4th China Book Award, the 7th Five-Project Book Award, the first prize of the National Excellent Children's Book and the Soong Ching Ling Children's Literature Award.
Media recommendation
Li Yupei's Mathematics Popular Science Works: Such rigorous mathematics can be written accurately, new, shallow and interesting, and children can accept it happily. Even a math academician may not be able to do it. -Beijing Evening News
Celebrity recommendation
My son is in the fifth grade and likes this book very much. He was almost fascinated. He won't let his eyes rest for a while after watching it continuously After reading the contents inside, I will draw inferences from others, and my classmates will test me and increase a lot of knowledge. My son already likes math, but now he likes it even more. Professor Li's book is really good. ? -Hee hee grapes?
I am in the sixth grade of primary school this year, and some teachers can't understand what they say. After reading this book, I basically understand. ? Vanilla chocolate princess
My students like Li Yupei's books very much. They all tell students a math knowledge through a story. -Haimen mint rain
References:
Baidu Encyclopedia-Li Yupei's Mathematical Adventure