Mathematics and life

Mathematics and life

Yang Weili

Hua Luogeng said: "The universe is big, the particles are small, the rocket speed, the chemical industry, the earth changes, the daily use is complicated, there is no need for mathematics." This is a wonderful description of mathematics and life. Mathematics comes from life and serves life. Mathematics and life are inseparable.

You know that Newton is a physicist, but do you know? He is still a mathematician! When he studied physics, he encountered a bottleneck, so he began to study mathematics and invented calculus, surpassing the mathematician of the time. Isn't this mathematics related to everything?

I still remember the first grade of the National Primary School. When the teacher taught us 1+1=2 in a meticulous manner, the happy and mysterious mathematical journey began from that time. However, on the basis of six years of learning mathematics, I was promoted to the middle school student, and I have a deeper understanding of mathematics. Mathematics can exercise our thinking and lay the foundation for us to solve problems in our life. The influence of mathematics on us is invisible, but we can't see but can feel it. Everyone in life always encounters a variety of problems involving calculations.

......Walking around, I suddenly saw a few big characters on the store side that are very eye-catching. It is printed on the top: From May 1st to May 10th, the game is 20% off. I pointed to the sign and asked my mother: "Mom, what is a discount?" "Discount is a discount, cheap," said the mother, "playing 20% ​​off is using eight tenths of the original price." "Hey, I understand, That 50% off is half of the original price." My answer made my mother very satisfied. Later, we went to buy some daily necessities. When I paid the bill, the aunt gave me an invoice. I looked at it carefully, eh? The total amount on the invoice is not clearly written 155. 32 yuan, how only received 155.30 yuan? I thought about it, I definitely used the rounding method. Now I use less money, so I am accurate to the corner. From that time on, I suddenly felt interested in mathematics that was usually difficult to learn.

In this life example, in addition to the shopping invoice itself is a statistical table, at least it involves mathematical issues such as discounts and rounding. The discount is the content of the sixth grade textbook learning, precisely because it is so closely related to life, so At that time, it was easy to understand that Guo Xiaosheng, who had never learned a discount, was also easy to understand. The most valuable thing is that I have used mathematics to explain life phenomena since I was a child, enhanced the awareness of applying mathematics, understood the value of mathematics, and improved my understanding of mathematics and confidence in learning mathematics. At the same time, I hope that everyone will also feel that "there is mathematics everywhere in life."

Mathematical operations are ubiquitous, ranging from the sale of life to the development of science and technology. For example, the successful launch of China's Shenzhou No. 9 and the flight time, speed and weight required for the spacecraft to enter the orbit are inseparable from the careful calculation of mathematics. If there is any slight error, there is a risk of "a little difference, a thousand miles".

In short, because of mathematics, life is more convenient, time-saving, and efficient, and gradually live a well-off life. National defense science and technology is more advanced, advanced and powerful, standing on the top of the world nation. Therefore, only by learning mathematics knowledge and laying the foundation of mathematics, can we make good use of mathematics and contribute to the economic development of the country and the world!

Yang Weili

Yanqiao Middle School, Ouhai District, Wenzhou, Zhejiang, China: Yang Weili