Tang Priest and his disciples went to the Western Heaven to learn Buddhist scriptures. One day, they passed by Taoyuan and stopped to have a rest. The Monkey King and Pig are drooling when they see peaches. The master said, "You can eat peaches, but I have to test you first." Wukong and Bajie nodded and said, "Yes, yes." The host said, "There are four peaches, and you two share them equally. How many peaches does everyone get? Please write down this number. " Hearing this, the apprentice laughed, which was not easy! Put pen to paper and wrote a "2". The master then said, "If you divide two peaches equally, how many will each person get?" ? Write down this number again. "the Monkey King load, conveniently wrote a" 1 ". The master said unhurriedly, "if you give a peach to both of you equally, how much money will each of you get?" "? How to write? ""half! " "Half!"

"How to write half?" Two disciples, you look at me, I look at you, at a loss.

Fractions have a long history in China, and the original forms of fractions are different from the present ones. Later, India appeared a score representative similar to China's. Later, the Arabs invented the fractional line, and the expression of the score became like this.

Divide the unit "1" into several parts on average, and the number representing such a part or parts is called a fraction. Denominator means to divide an object into several parts equally, and numerator means to take several parts.

Two mathematicians' tabloids! ! ! ! !

Homework won't, Xueba will download it for you right away.

Satisfied answer

1. Chen Jingrun doesn't like playing parks, shopping and studying. When I study, I often forget to eat and sleep.

One day, Chen Jingrun touched his head during lunch. Oh, his hair is too long. He should get a haircut quickly, or people will think he is a girl when they see him. So he left work and ran to the barber shop.

There are so many people in the barber shop that everyone cuts their hair next to each other. Chen Jingrun's brand is the small brand number 38. He thought it was too early for me to turn now. Time is so precious that I can't waste it. He hurried out of the barber shop, found a quiet place to sit down, then took out a small notebook from his pocket and recited new words in a foreign language. He recited it for a while and suddenly remembered that when he was reading a foreign language in the morning, there was one place he didn't understand. You must understand what you don't understand. This is Chen Jingrun's temper. He looked at his watch. It's only half past twelve. He thought: check in the library first, and then come back for a haircut. He stood up and left. Who knows, not long after he left, it was his turn to get a haircut. The barber's uncle shouted, "Number 38! Who is number thirty-eight? Come and get a haircut! " Think about it. Chen Jingrun is reading in the library. Can he hear the barber's uncle calling number 38?

After a long time, Chen Jingrun found something he didn't understand in the library, and then went to the barber shop happily. But he passed by the foreign language reading room, and there were all kinds of new books, which were really nice. He ran in and read another book. It was not until the sun went down that he remembered to cut his hair. As soon as he touched his pocket, the little sign No.38 was still lying well. But what's the use of his coming to the barber shop? This number is outdated.

2. Archimedes

King Shiloh of Syracuse asked the goldsmith to make a crown out of pure gold. Because it is suspected that there is silver mixed in it, Archimedes is invited to identify it. When he entered the bathtub to take a bath, the water overflowed outside the bathtub, so he realized that although the weight of objects made of different materials was the same, the discharged water would be different because of their different volumes. According to this truth, it can be judged whether the crown is adulterated.

3. Hua (1910.12-1985.6.12. ), a world-famous mathematician, is China's analytic number theory, matrix geometry, canonical group and self-safe function theory. The international mathematical research achievements named after Fahrenheit include Fahrenheit theorem, Huai-Hua inequality, Fahrenheit inequality, Prawell-Gardiner theorem, Fahrenheit operator, Hua-Wang method and so on.

4. 1966 Chen Jingrun, who lives in a 6-square-meter cabin, borrowed a dim kerosene lamp, leaned against the bed board, used a pen and consumed several sacks of draft paper. He actually conquered (1+2) in the world-famous mathematical puzzle "Goldbach conjecture", creating a distance from taking off the crown jewel of number theory (1+). He proved that "every big even number is the sum of the products of a prime number and no more than two prime numbers", which made him a world leader in Goldbach's conjecture research. This result is called "Chen Theorem" internationally and is widely quoted. This work also enabled him, Wang Yuan and Pan Chengdong to win the first prize of China Natural Science Award with 1978 * *. His achievements in studying Goldbach conjecture and other number theory problems are still far ahead in the world. A world-class master of mathematics and American scholar A Will (A? Weil) once praised him like this: "Every job in Chen Jingrun is like walking on the top of the Himalayas.

1930 One day, Xiong Qinglai, head of the Department of Mathematics at Tsinghua University, was sitting in his office reading a magazine Science. Looking at it, I can't help but exclaim: "Which country is this China from?" Everyone around shook their heads. "Which university does he teach at?" People looked at each other. Finally, a Jiangsu-born teacher thought for a long time before slowly saying, "My brother has a classmate named Hua. Which university did he teach at? " ! He only went to junior high school and heard that he worked as a clerk in Jintan Middle School. "

Xiong qinglai was surprised. A person who graduated from junior high school must be a genius to write such a profound mathematical paper. He immediately decided to invite Hua to Tsinghua University.

Third, make up an average story with 15 and 5. Second grade math.

Xiaoming bought a 15 pencil.

Xiaohong bought five pencils.

How many pencils do Xiaoming and Xiaohong have on average?

Four tabloid pictures, nice! ! ! ! ! ! ! ! !

Write with black ink pen and color with watercolor pen.

Five mathematical averages: how to write tabloids?

One night, the little white rabbit was playing on the balcony. She saw the stars blinking their bright eyes in the dark and dressed the night very beautifully. She wanted to count the stars, but there were too many, so she called her friend. Sasha, kitten and squirrel count the stars with her. They count, count, and finally count. But no one knows what * * * is. Just then, the forest mathematician giraffe came over. They asked giraffes how to count the total number of stars. The giraffe analyzed it for a while and asked Sasha how many stars she counted. Sasha thought for a moment and said, "Well, I counted 5652 stars!" " "I counted 7584, and Huahua also said! I count like Sasha! Meimei said. Giraffe said, "Since you all know how much you have counted, I will help you calculate it!" " "Giraffe said: 5652×2= 1 1304, which is the number of Meimei and Sasha. 11304+7584 =18888 is the total number of * * *! Giraffe said excitedly, "Ah," we have counted all the stars, and they have 18888. Three happy friends cried with excitement and joy! The giraffe standing by was wrong to hear them say this, and said to them, "There are countless stars in the sky. You only count your own stars!" " "oh! They answered with one voice.

Six ordinary picture books

Now, do you want to know why I like this story? Tell you, in fact, I have such an experience!

In the fourth grade, my math performance was not very good, and I always failed to get above the score line in the exam. Some students laughed at me: "My score in one exam is worth your score in two exams." When I heard this, I felt ashamed and made up my mind: I will definitely get good grades in the fifth grade for you to see! During the summer vacation, I studied hard and carefully previewed the fifth grade math. I wanted to give up several times. But my determination always gives me strength. Persistent efforts have brought good results! My math scores are above average in both exams! I recall the scene at that time and feel proud of myself!

The above things tell us that as long as we persist in our efforts, we will have good results!

Seven stories about mathematicians, making handwritten newspapers.

1. Chen Jingrun doesn't like playing parks, shopping and studying. When I study, I often forget to eat and sleep.

One day, Chen Jingrun touched his head during lunch. Oh, his hair is too long. He should get a haircut quickly, or people will think he is a girl when they see him. So he left work and ran to the barber shop.

There are so many people in the barber shop that everyone cuts their hair next to each other. Chen Jingrun's brand is the small brand number 38. He thought it was too early for me to turn now. Time is so precious that I can't waste it. He hurried out of the barber shop, found a quiet place to sit down, then took out a small notebook from his pocket and recited new words in a foreign language. He recited it for a while and suddenly remembered that when he was reading a foreign language in the morning, there was one place he didn't understand. You must understand what you don't understand. This is Chen Jingrun's temper. He looked at his watch. It's only half past twelve. He thought: check in the library first, and then come back for a haircut. He stood up and left. Who knows, not long after he left, it was his turn to get a haircut. The barber's uncle shouted, "Number 38! Who is number thirty-eight? Come and get a haircut! " Think about it. Chen Jingrun is reading in the library. Can he hear the barber's uncle calling number 38?

After a long time, Chen Jingrun found something he didn't understand in the library, and then went to the barber shop happily. But he passed by the foreign language reading room, and there were all kinds of new books, which were really nice. He ran in and read another book. It was not until the sun went down that he remembered to cut his hair. As soon as he touched his pocket, the little sign No.38 was still lying well. But what's the use of his coming to the barber shop? This number is outdated.

2. Archimedes

King Shiloh of Syracuse asked the goldsmith to make a crown out of pure gold. Because it is suspected that there is silver mixed in it, Archimedes is invited to identify it. When he entered the bathtub to take a bath, the water overflowed outside the bathtub, so he realized that although the weight of objects made of different materials was the same, the discharged water would be different because of their different volumes. According to this truth, it can be judged whether the crown is adulterated.

3. Hua (1910.12-1985.6.12. ), a world-famous mathematician, is China's analytic number theory, matrix geometry, canonical group and self-safe function theory. The international mathematical research achievements named after Fahrenheit include Fahrenheit theorem, Huai-Hua inequality, Fahrenheit inequality, Prawell-Gardiner theorem, Fahrenheit operator, Hua-Wang method and so on.

4. 1966 Chen Jingrun, who lives in a 6-square-meter cabin, borrowed a dim kerosene lamp, leaned against the bed board, used a pen and consumed several sacks of draft paper. He actually conquered (1+2) in the world-famous mathematical puzzle "Goldbach conjecture", creating a distance from taking off the crown jewel of number theory (1+). He proved that "every big even number is the sum of the products of a prime number and no more than two prime numbers", which made him a world leader in Goldbach's conjecture research. This result is called "Chen Theorem" internationally and is widely quoted. This work also enabled him, Wang Yuan and Pan Chengdong to win the first prize of China Natural Science Award with 1978 * *. His achievements in studying Goldbach conjecture and other number theory problems are still far ahead in the world. A world-class master of mathematics and American scholar A Will (A? Weil) once praised him like this: "Every job in Chen Jingrun is like walking on the top of the Himalayas.

-I'm a dividing line.

1930 One day, Xiong Qinglai, head of the Department of Mathematics at Tsinghua University, was sitting in his office reading a magazine Science. Looking at it, I can't help but exclaim: "Which country is this China from?" Everyone around shook their heads. "Which university does he teach at?" People looked at each other. Finally, a Jiangsu-born teacher thought for a long time before slowly saying, "My brother has a classmate named Hua. Which university did he teach at? " ! He only went to junior high school and heard that he worked as a clerk in Jintan Middle School. "

Xiong qinglai was surprised. A person who graduated from junior high school must be a genius to write such a profound mathematical paper. He immediately decided to invite Hua to Tsinghua University.

Since then, Hua has become a teaching assistant in the Department of Mathematics of Tsinghua University. Here, he is like a duck to water, swimming in the ocean of mathematics every day, leaving only five or six hours of sleep for himself. It's hard to believe that flowers have developed the habit of reading books after turning off the lights. Of course, he has no special function, just a logical thinking activity in his mind. He took a book and put it under the lamp, looked at the topic and thought for a while, then turned off the lamp and lay in bed, closed his eyes and meditated, and began to do the problems in his mind. Turn over and get out of bed when you encounter difficulties, and open your books for a while. In this way, a book that took ten days and a half months to finish, he finished it in one night and two nights. Hua is regarded as a rare assistant.

The following year, his papers began to be published in famous foreign mathematical magazines. Tsinghua University broke the precedent and decided to promote Huawei teaching assistants with only junior high school education.

A few years later, Hua was sent to Cambridge University in England to study. However, he doesn't want to study for a doctorate, but only wants to be a visiting scholar. Because being a visiting scholar can break through the shackles and learn seven or eight subjects at the same time. He said, "I came to study in England, not to get a degree."

Hua didn't get a doctorate. During his two years in Cambridge, he wrote 20 papers. On the level, every article can get a doctorate. In one of the studies on "the problem in the tower", his theory was named "Fahrenheit theorem" by the mathematical community.

Hua devoted himself to his favorite mathematical research with the spirit of loving science, being diligent in research and not seeking fame and fortune. He abandoned the money, fame and position that the world sought. In the end, his career succeeded.

China closely combines scientific research with practical application. Hua applied mathematics to industrial and agricultural production and made outstanding contributions to China's modernization.

Take it to the internet and you will know.

Draw an illustrated mathematical handwritten newspaper. The content can be mathematicians' stories, math puzzles and interesting math problems.

The content of handwritten newspaper can write interesting mathematical knowledge.

In our concept, "1" is the smallest number, the first number of an integer, and the first number of ten thousand. Yes, "1" is the first number of ten thousand, and its position is also the most special. Let's meet this magic number with me.

First, the smallest number.

The ancient and huge family of natural numbers consists of all natural numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The smallest one is "1", and the largest one can't be found. You can look for it if you are interested.

Second, there is no maximum natural number.

Maybe you think you can find a largest natural number (n), but you will immediately find another natural number (n+ 1) greater than n, which means that you will never find the largest natural number in the family of natural numbers.

Third, "1" is indeed the smallest in the family of natural numbers.

The natural number is infinite, and "1" is the smallest of the natural numbers. Some people disagree that "1" is the smallest natural number, saying that "0" is smaller than "1" and "0" should be the smallest natural number. This is wrong, because natural numbers refer to positive integers, and "0" is the only non-positive non-negative integer, so "0" does not belong to the family of natural numbers. "1" is indeed the smallest in the family of natural numbers.

Don't underestimate the smallest "1", which is the unit of natural numbers and the first generation of natural numbers. Humans first recognized "1", and only by using "1" can we get 1, 2,3,4. ...

I told you the special status of "1", which is the first in a thousand miles. Don't underestimate it.

Nine mathematical stories about the average score

If the average score of five people is X, then the average score of three people is (x+2).

88×2+3(x+2)=5x

solve

x=9 1

A: The average score of these five people is 9 1.