Chapter 1: The Story of Fraction In 2000, the fractional line and denominator became husband and wife. In 2003, their child denominator was born.
One day, the score went shopping. The denominator goes to buy fruit, and the fractional line goes to buy water. Once separated, the denominator and numerator become two-thirds and the fractional line becomes one-third. Get together after shopping, and it will become a whole "1"!
Rinrin, the alarm clock is ringing. Oh! It was a dream! I quickly get up and go to school! The first class is math, and today we are going to learn fractions.
Mr. Zhong first told us the concept of fractions. After doing some exercises, he asked a question: "How to write the score?" I raised my hand and replied, "Write the fractional line first, then the denominator and numerator." The teacher's expression became serious and said, "Be careful when writing grades!" "
Although I encountered a lot of problems when doing the problem, I will succeed as long as I am serious! Really just like the teacher said! Now, the score is my best math problem!
Chapter 2: The Story of Fractions More than 200 years ago, the Swiss mathematician Euler said in his book General Arithmetic that it was impossible to divide a 7-meter-long rope into three equal parts because there were no suitable numbers to represent it. If we divide it into three equal parts, each part is rice. It's like a new number, so we call it a fraction.
Why is it called a score? The name "fraction" visually represents the characteristics of this number. For example, if a watermelon is shared equally by four people, shouldn't it be divided into four equal parts? From this example, we can see that fraction is the need of measurement and the need of mathematics itself-the need of division operation.
China is the first country to use scores. There are many records about scores in ancient China. According to Zuo Zhuan, in the Spring and Autumn Period, the largest city in the vassal state could not exceed Zhou, the middle city could not exceed Zhou and the small town could not exceed Zhou.
During the Qin Shihuang period, the number of days in a year was 365.
Nine Chapters Arithmetic is a mathematical monograph written by China 1800 years ago. The first chapter, Square Domain, talks about four algorithms of fractions.
In ancient times, China used scores 1000 years earlier than other countries. So China has a long history and splendid culture.
Chapter 3: The Story of Fractions In the ancient kingdom of numbers, there are two brothers, one is the numerator and the other is the denominator, separated by a fractional line. One day, the denominator asked his good friend 8 to play. They play checkers, hide-and-seek and badminton together. . . . Originally, I had a good time, but at this time, the numerator and the fractional line were bored together, and I was going out to have a look.
As soon as I went out, I saw the denominator and 8 having such a good time together, which was enviable. They wondered why I didn't have such a good bosom friend. So they had a bad idea and began to whisper to each other: "We are like this ... like this ..." ... In the next few days, both the numerator and the fraction were furtive, and the denominator felt strange. They always felt that something was wrong, but they didn't know that a terrible thing was brewing quietly.
In the early morning of the third day, the denominator was awakened by a tragic cry: "Ah. Ah ... ". The denominator ran downstairs and went to 8' s house. Oh, my God! The denominator was stunned by everything in sight. 8. The house is in a mess, the chair falls down, the table turns over, 8. Lie quietly on the ground. "Good friends. 8. "Are you all right? The denominator wept, and he put his hand on 8' s nose again. "There is no breathing. . . . "At some point, tears came down, with a sad face. Slowly, he woke up and buried 8 in the most beautiful place on Meihua Mountain.
The denominator is clear, it must be the denominator and the fractional line. He found the denominator and fractional line and asked, "Did you do the death of 8?" "Yes, yes ..." They were afraid themselves. They're just jealous. Show them some color. They didn't expect things to get too big, and the consequences were so serious that they didn't even have the strength to speak. The denominator said sternly to them, "If you envy others having good friends, you should associate with others with your heart and find your own good friends." "Okay, I see. Give us a chance.
Since then, numerator, fractional line and denominator have lived happily together.