Write a composition with mathematics

Mathematics in life

One Sunday morning, I was sitting in a chair doing my homework. Because of the age, the chair was wobbly. When grandpa knew it, he nailed it to the legs of the chair obliquely and asked me to try it again. I found that the chair was not wobbly at all! I "asked" my grandfather with curiosity. Grandpa said, "The chair surface, the ground and two legs on one side form a square. If I nail a piece of wood obliquely in the middle, isn't it divided into two triangles? The triangle is stable, so try it if you don't believe it. " I began to nail a triangle and a square with a piece of wood with curiosity. No matter how hard I hold the triangle, I can't pull it, but the square is deformed when I pull it gently. I finally understand why grandpa nailed the batten sideways. This is what I learned in class. Triangle is stable and not easy to deform. It seems that mathematics in life is everywhere.

So, I began to look for triangles in my life. After careful observation, I found that there are many examples of triangle stability in life. There are triangles on the pot rack for cooking at home and on the camera bracket. The bicycle is very stable when parked because the bicycle bracket, the ground and the tires form a triangle. . There are many, many more! Because I am good at observing life, I made a positive and wonderful speech in math class and was praised by my classmates and teachers.

One day, my mother bought me a pair of new shoes. After I tried them, I carefully tried to put them back on. But I couldn't put it in, so I finally had to "ask for help" from my mother. Mom really has a way of putting the toe of the left foot and the heel of the right foot together at one end and putting it in at once. Seeing that I was very puzzled, my mother said to me, "Look, look at the area occupied by these two shoes as two right triangles, and the bottom of the shoe box is a rectangle." I suddenly realized that I nodded: two identical right triangles can be combined into a rectangle. Isn't this the combination of triangle figures we just learned in math class? It used to be here.

look, from these examples, I feel that there are many things closely related to mathematics in real life? As long as we are good at observing and paying attention to mathematics everywhere, it will bring people wisdom and create wealth. It can be said that mathematics is everywhere in life, and it is inseparable from mathematics everywhere in life.

2. Mathematics composition 8 words

Many students complain that mathematics is difficult to learn, and what the teacher says is always beyond the reach of a monk.

I think there is a way to learn mathematics. As long as you master this party policy and apply it, I believe that mathematics will become your friend. The most important thing in learning mathematics is to be good at thinking.

If mathematics is compared to a lock, then thinking is a golden key to unlock the lock of mathematics for you. For example, some students listen carefully in class and can swallow all the contents of the teacher's speech, but they will not digest or absorb it, and eventually they will be "malnourished".

He mastered it because he didn't get good grades in thinking, he couldn't reprocess what the teacher taught, he couldn't sort it out, and he didn't know the ins and outs of the road. Of course, he couldn't master the true face of knowledge. We should learn the working method of bees, which can not only collect honey, but also make honey.

In this respect, some students do better. They not only listen attentively in class, but also think when the teacher talks about the solution to a certain problem, thinking about the reason for such a solution, although the method for solving this kind of problem will be introduced later. In this way, the teacher will be integrated.

While studying mathematics, we should pay attention to cultivate our good habit of thinking, learn to use it flexibly, and draw inferences from others, so as to get twice the result with half the effort. Some people say, "Mathematics is profound, changeable and unpredictable, which makes people puzzled and unpredictable.".

But in my eyes, mathematics is at most a set of knotted ropes. You must patiently untie one knot after another, and one day you will be able to untie all the knots. Mathematics is the use of learned knowledge to solve unknown problems.

You should have perseverance, patience and perseverance in learning mathematics. Just like a person who digs a well, he digs deep and gives up when he is close to the water source; All the previous work will be in vain and fall short.

It is also important to be careful when solving math problems. As long as there is a little negligence in the calculation, the whole question may be wrong.

just like playing chess, one wrong move may lead to a total loss. Don't wait until you do something wrong to regret it. There is no regret medicine in the world from one act.

Bacon once said, "People who see Wang Yang think that there is no mainland are just poor explorers", and "poor explorers" are doomed to fail, and the fundamental reason for their failure lies in their lack of exploration spirit. Scientific invention needs exploration spirit, and mathematics also needs exploration spirit.

Don't always think that there is only one solution to every problem, "All roads lead to Rome", but try to explore, think and discover. Being assertive and confident is also essential for learning mathematics.

Don't always think that what the teacher says in the textbook must be correct. You should have your own opinions and not follow others' advice. Everyone should have confidence in themselves. One can't succeed forever. In the face of failure, one should have confidence in oneself and believe that one can do it.

As Goldsmith said, "The greatest glory in life lies not in never failing, but in rising repeatedly." . 3. A 2-word essay on mathematics Part I: There is mathematics everywhere in mathematical life.

for example: shopping! Buy stationery! Measuring cloth, etc., all need to use mathematics. This semester, the teacher taught a new knowledge, which is multiplication and division of decimals.

this knowledge has helped me a lot! Last night, my mother went to buy oranges together. A kilo of oranges is 1.8 yuan's, and my mother bought 4.5 kilos. I should have paid 8.1 yuan.

But the shop assistant was careless and didn't know how to calculate it, so it turned into 9 yuan money. Fortunately, I used the knowledge of Protestantism this semester, and after doing a calculation in my mind, I immediately corrected the mistake of the salesperson.

Not only did my aunt, the shop assistant, praise me for my cleverness and my ability to multiply and divide decimals in such a small city, but on my way home, my mother also praised me for saving her .9 yuan, and the knowledge I learned can be applied flexibly in my life. Yes! If you don't learn this math well, you will lose not only this .9 yuan, but also hundreds, thousands or even hundreds of millions! Chapter 2: About Mathematics When you swim in the stormy sea of mathematics, can you brave the wind and waves? When you are struggling in the hard and painful real life, can you still love mathematics? When you are full of doubts about extremely simple questions, can you actively ask why? When you know a difficult mathematical concept backwards, can you embody it in your life? When you have doubts about famous mathematical papers, can you boldly question them? Mathematics, it is unfathomable, it is wonderful.

if you don't understand it, it will bother you; But once you fall into the unfathomable bottomless pit of mathematics, you will be deeply attracted by its wonders. When a difficult problem is solved through your hard thinking, you will feel satisfied with the sense of accomplishment, the wonderful feeling of be in heaven.

Talking about the past and the present, how many clever geniuses and buried talents have mathematics achieved: Cyrus, the father of mathematics, Gauss, the prince of mathematics, and Euler, the seeds of problems ... What great mathematicians they are. However, is their math career smooth sailing? No, they all experienced countless storms to see the beautiful rainbow! Hua Luogeng, a self-taught mathematician, still loved mathematics and his pursuit when his left leg was paralyzed and his life was hopeless, and he bravely questioned the famous professor Su Jiaju's paper. Without that doubt, Hua Luogeng would not have become a great mathematician, let alone the pride of China. The greatness of Cyrus, the father of mathematics, is that he can not only explain the problem, but also add a scientific question mark. He is not superstitious and loves science. At the age of eight, the clever Gauss knew how to calculate 1+2+3+... n, which ancient Greeks and China used to calculate series, to calculate 1+2+3 ...+1. Why can he use this method to calculate? Because he is willing to use his brain and loves to use his brain. Although Euler was a famous mathematician, when he was a child, he was not liked by his teachers at all. He was a student expelled from school because he asked a question: How many stars are there in the sky? You know, it is impolite for God to ask such questions, and in Euler's time, God was sacred and inviolable, so he was fired.

But it was because of his good habit of asking questions that he became the youngest college student in accel University. A person, as long as he has the noble qualities of loving brains, mathematics and science.

He has taken the first step to become a great mathematician in the future if he can boldly question, embody mathematics in his life, actively ask why, and never flinch or give up when encountering problems! And I, as the future flower of the motherland and the hope of the nation, it is my bounden duty to learn mathematics well, for the rise of China, for the bright future of China, and even more for myself! The ocean of mathematics, I am swimming, I want to raise the sail of my dream and brave the wind and waves in the ocean! Chapter 3: I am a lively and cheerful boy about mathematics. I like abstruse mathematics. Mathematics has a kind of attraction to me. As soon as I see a math problem, I will concentrate on it and do it without making a sound, as if I had come to this abstruse mathematics kingdom.

Some students say that mathematics is very abstruse. I think it is because there are olympiad numbers in mathematics. Indeed, if you don't know anything about olympiad, you will be confused and think that mathematics is not fun at all; Of course, if you are interested in olympiad, you will have a belief that you must do it well and finish it in the process of calculation.

That's how I overcame one Olympic math problem after another, and I got a sense of intimacy in mathematics. I still remember taking part in the Olympic math competition when I was in the first and second grade.

In the competition, faced with those Olympic math problems that I didn't do, although I was sweating profusely, I still devoted myself to them as usual. With my efforts, I won the third place every time, and my heart was as sweet as honey. But I still hope that one day I can win the first place in the competition.

I can't live without the Olympiad in my life. It's like my partner, and I get in close contact with it for a while every day. Up to now, I have done all kinds of Olympic math problems, my ideas are getting wider and wider, and my interest in mathematics is getting stronger and stronger.

I want to be a mathematician when I grow up. This is me-a boy who loves mathematics deeply.

chapter 4: I have been studying mathematics for more than six years, and the road to learning is bumpy and full of difficulties. I remember that in the third and fourth grades of primary school, my math scores didn't prove good, and I always fluctuated around 8 points, perhaps because I was afraid that math would be resistant to this subject.

When I was in the sixth grade, I was faced with a severe graduation exam, so I had to bite the bullet and study math seriously. Only then did I realize that mathematics was not as terrible as I thought.

I just found out that mathematics is actually the most interesting subject of all subjects. After entering middle school, I really discovered the magic of mathematics.

it can bring us endless fun. I have learned a lot of knowledge in elementary school mathematics: algebra, rational numbers, algebraic expression, linear equations with one yuan, linear equations with two yuan ... In the process of learning, I will inevitably encounter some setbacks, and there are countless regrets caused by my carelessness.

those naughty kids. 4. 4 words of math composition

Today, because my parents are at work, my mother sent me to Xinhua Bookstore, which was crowded with people. As soon as I entered the door, a hot air came at me. This lively scene made me suddenly impulsive. The bookshelf is crowded with people. If you want to see it clearly, you have to squeeze in. In the past, I was "civilized" and forgot any comity. I took advantage of every loophole. I completely ignored the pressure from behind and chose books to my heart's content. After a while, I finally chose the book I read. Squeezing out of the crowd, I found that one looked like a teacher holding a lot of books. I asked the teacher politely, do you need any help? The teacher readily agreed. Teacher, are you choosing books for students? Yes! How many students are there in your class? The teacher didn't tell me directly, but asked me, let me guess. There are 6 books per person, leaving 41 books, and 8 books per person are 29 books short. How many students are there? How many books? This time, I was stumped. I thought about it, and suddenly I had a little idea. The two points were different, which led to a difference of 41+29=7 (books). Each person divided 6 books into 8 books, and the difference was 8-6 = 2 (books). Oh! Suddenly, I understand, the total difference is known, and the difference between each person is known. Isn't that the total number of people? I quickly found out that there were 35 students, and the number of students was found out, so books were even easier to find. 6*35+41=251 (Ben) I told the teacher the answer, and the teacher said, "You are great! Exactly! "

In fact, mathematics is quite interesting, especially when you get the correct answer through hard work. The beauty in your heart is really unspeakable! In the future, I will explore and discover in the castle of mathematics and constantly experience the happiness brought by success. 5. Math Composition of 2 words

Math Composition-Shopping

Today, the "kid" is in charge. I took the money my father gave me to buy food.

I came to the vegetable market and wanted to buy some vegetables. The food in the market was 1.5 yuan Jin, and I was going to buy 2 Jin. However, I looked at the food outside the market. It was only 1.2 yuan Jin, and it was better than the food inside. I was going to buy another Jin and fry it at night, which not only bought more vegetables, but also was cheaper, with a price of 1.5*3=4.5 (RMB) 1.2.

then, I went to buy meat. The meat in the market is lean, and 4.5 yuan is a catty; And the meat outside the market, lean meat less also want to 4.5 yuan a catty, by contrast, I choose the meat in the market, of course. So, I bought 3 Jin of meat, which cost 4.5 * * 3 = 13.5 yuan.

I was deeply impressed by this shopping. 6. Three Math Compositions < P > My discoveries Students, did you make some casual discoveries in your math study like me? Now I will introduce some of my findings.

if you are asked to calculate a multi-digit multiplied by 5, are you going to be vertical? But I can do it by mouth, because I found a little trick. Do you want to know? Let me tell you: calculate the product of 48532*5, find this number 48532 first, and then divide it by 2. Can you do it orally? 24266 This is 48532*5.