Mathematics in life
Learning mathematics should be used in real life. Mathematics is used by people to solve practical problems. In fact, there will be math problems in life. For example, when you go shopping, you will naturally use addition and subtraction, and you always have to draw pictures when you build a house. There are countless problems like this, and this knowledge comes from life and is finally summed up as mathematical knowledge, which solves more practical problems.
I once saw a report that a professor asked a group of foreign students, "How many times will the minute hand and the hour hand overlap between 12 and 1?" Those students all took off their watches from their wrists and began to set hands; When the professor tells the same question to the students in China, the students will use mathematical formulas to make calculations. The commentary said that it can be seen that China students' mathematical knowledge is transferred from books to their brains, so they can't use it flexibly. They seldom think of learning and mastering mathematics knowledge in real life.
From then on, I began to consciously connect mathematics with daily life. Once, my mother baked a cake, and two cakes could be put in the pot. I thought, isn't this a math problem? It takes two minutes to bake a cake, one minute in front and one minute in the back. At most, two cakes are put in the pot at the same time. How many minutes does it take to bake three cakes at most? I thought about it and came to the conclusion that it takes 3 minutes: first, put the first cake and the second cake into the pot at the same time, 1 minute later, take out the second cake, put the third cake and turn the first cake over; Bake again 1 min, so that the first cake is ready. Take it out. Then put the reverse side of the second cake on it, and turn the third cake upside down at the same time, so it will be all done in 3 minutes.
I told my mother about this idea, and she said, actually, it won't be so coincidental. There must be an error, but the algorithm is correct. It seems that we must apply what we have learned in order to make mathematics serve our lives better.
Mathematics should be studied in life. Some people say that the knowledge in books has little to do with reality now. This shows that their knowledge transfer ability has not been fully exercised. It is precisely because learning cannot be well understood and applied in daily life that many people do not attach importance to mathematics. I hope that students can learn mathematics in their lives and use mathematics in their lives. Mathematics is inseparable from life. If they study thoroughly, they will naturally find that mathematics is actually very useful.
2. Essays on mathematics in life are limited to 400 words.
Mathematics in life
It is sunny today. I go shopping in the supermarket. I saw a lot of things as soon as I entered. So I went shopping in desperation, and soon my basket was full, so I asked my father, "Can you count the things here?" Dad touched his head. Who can work all this out at once? I said I could. I soon got tired of counting heads. Dad thought of a good way to find the cashier and ask him to help us.
I went to the cashier and said to my aunt, "can you help me calculate?" It is too difficult for us to calculate with our mouths. Please help us figure it out, and it will come out soon. I praised it again and again and said, "Well, it's amazing. I asked my aunt how you did it. She said," It's not difficult for me to do such a small thing. I count by mobile phone. I said I was stupid. I didn't expect this. We packed our things and left. I've always wondered why my aunt knew all this. I don't know how my aunt came up with this and I didn't.
When I got home, I realized that there is mathematics in life, just like what happened today, there are things about mathematics. For example, many things can't be calculated clearly, so you can use a calculator. If you don't have a calculator, you can also use something like a mobile phone to calculate these numbers. Isn't this a solution? Solving everything in mathematics depends on the brain.
Therefore, life is inseparable from mathematics. When you encounter difficulties in mathematical calculation, use your brain to find a way.
3. Write a composition of not less than 400 words on the topic of mathematics in life.
Mathematics in life is to be applied in real life. Mathematics is used by people to solve practical problems. In fact, there will be math problems in life.
For example, when you go shopping, you will naturally use addition and subtraction, and you always have to draw pictures when you build a house. There are countless problems like this, and this knowledge comes from life and is finally summed up as mathematical knowledge, which solves more practical problems.
I once saw a report that a professor asked a group of foreign students, "How many times will the minute hand and the hour hand overlap between 12 and 1?" Those students all took off their watches from their wrists and began to set hands; When the professor tells the same question to the students in China, the students will use mathematical formulas to make calculations. The commentary said that it can be seen that China students' mathematical knowledge is transferred from books to their brains, so they can't use it flexibly. They seldom think of learning and mastering mathematics knowledge in real life.
From then on, I began to consciously connect mathematics with daily life. Once, my mother baked a cake, and two cakes could be put in the pot.
I thought, isn't this a math problem? It takes two minutes to bake a cake, one minute in front and one minute in the back. At most, two cakes are put in the pot at the same time. How many minutes does it take to bake three cakes at most? I thought about it and came to the conclusion that it takes 3 minutes: first, put the first cake and the second cake into the pot at the same time, 1 minute later, take out the second cake, put the third cake and turn the first cake over; Bake again 1 min, so that the first cake is ready. Take it out. Then put the reverse side of the second cake on it, and turn the third cake upside down at the same time, so it will be all done in 3 minutes.
I told my mother about this idea, and she said, actually, it won't be so coincidental. There must be an error, but the algorithm is correct. It seems that we must apply what we have learned in order to make mathematics serve our lives better.
Mathematics should be studied in life. Some people say that the knowledge in books has little to do with reality now.
This shows that their knowledge transfer ability has not been fully exercised. It is precisely because learning cannot be well understood and applied in daily life that many people do not attach importance to mathematics.
I hope that students can learn mathematics in their lives and use mathematics in their lives. Mathematics is inseparable from life. If they study thoroughly, they will naturally find that mathematics is actually very useful.
4. What mathematical knowledge do you have in your life? Please make a list and use more words.
There are many mathematical problems around our lives, which run through all aspects of our lives. There are many math games in real life, such as children's quick calculation of 24 when playing poker, math box filling game, and even Zhao Benshan's sketches have many such math games, such as "seven monkeys in the tree, a monkey on the ground, and a few monkeys." And so on. These games constitute a colorful picture in our life. We get together every morning. First of all, we make a relatively simple plan for the day's work, what to do in a day, when to finish it, and what is the budget expenditure and income of this day; After having a preliminary plan, start to implement the work of the day; A day's work is accompanied by various calculations, and the budget is mathematics. After a day's work, the next step is the summary of the day. Summarized by a mathematical operation, the result of the operation is a relatively intuitive number. In our real life, shopping, estimating, calculating time, determining location and buying and selling stocks are all related to mathematics. It can be said that mathematics is everywhere in people's lives. Mathematics is an indispensable tool in daily life. No matter what occupation people are engaged in, they will use mathematical knowledge and skills and mathematical thinking methods to varying degrees. Especially with the popularization and development of computers, this demand is increasing day by day. Whether it is weather forecast, savings, market research and forecast in our daily life, or gene map analysis, engineering design, information coding, quality monitoring and so on. It is inseparable from the support of mathematics. Mathematics, like language, is a tool with international universality. It can be said that there are countless mathematics in nature, such as the honeycomb built by bees, whose surface is composed of wonderful mathematical figures-regular hexagon, which consumes the least material and time; The manhole covers of urban sewers are all round. Do you know why? On the sidewalk, we often see such patterns, which are paved with square or regular hexagonal floor tiles of the same size, so that the floor tiles of this shape can be paved into a flat ground without pores. Is there a mathematical truth of salvation in this? For another example, 100 households need to install telephones, but they don't need 100 telephone lines. As long as they are kept busy for a period of time, the installation cost can be greatly saved, which embodies the role of mathematical statistics. Therefore, life cannot be separated from mathematics, which is the epitome of life. At the end of the year, businessmen said that my new year was coming. Farmers are also talking about how much food they have earned this year; The workers are also discussing whether the income and expenditure of this year are equal and how much savings there are; The soldiers talked about their training achievements this year and how many achievements they improved; Students' academic performance is the standard to measure a teacher's efforts in the past year; The unit is also making such a summary. The end of one year is like this, and the beginning of the next year also needs a budget; People are doing the same thing every day, every month, every quarter and every stage; A person, a family, a unit, an organization, a country, etc. They all use mathematical methods to do certain operations on them in different time, place, space, people and things. And then get an intuitive numerical index as the goal, conclusion, budget, degree, etc. In short, mathematics in life can be said to be everywhere, and mathematics has a serious impact on our lives.
5. Look for the mathematics in life and write a mathematics paper with more than 600 words.
Learning mathematics should be used in real life. Mathematics is used by people to solve practical problems. In fact, there will be math problems in life. For example, when you go shopping, you will naturally use addition and subtraction, and you always have to draw pictures when you build a house. There are countless problems like this, and this knowledge comes from life and is finally summed up as mathematical knowledge, which solves more practical problems.
I once saw a report that a professor asked a group of foreign students, "How many times will the minute hand and the hour hand overlap between 12 and 1?" Those students all took off their watches from their wrists and began to set hands; When the professor tells the same question to the students in China, the students will use mathematical formulas to make calculations. The commentary said that it can be seen that China students' mathematical knowledge is transferred from books to their brains, so they can't use it flexibly. They seldom think of learning and mastering mathematics knowledge in real life.
From then on, I began to consciously connect mathematics with daily life. Once, my mother baked a cake, and two cakes could be put in the pot. I thought, isn't this a math problem? It takes two minutes to bake a cake, one minute in front and one minute in the back. At most, two cakes are put in the pot at the same time. How many minutes does it take to bake three cakes at most? I thought about it and came to the conclusion that it takes 3 minutes: first, put the first cake and the second cake into the pot at the same time, 1 minute later, take out the second cake, put the third cake and turn the first cake over; Bake again 1 min, so that the first cake is ready. Take it out. Then put the reverse side of the second cake on it, and turn the third cake upside down at the same time, so it will be all done in 3 minutes.
I told my mother about this idea, and she said, actually, it won't be so coincidental. There must be an error, but the algorithm is correct. It seems that we must apply what we have learned in order to make mathematics serve our lives better.
Mathematics should be studied in life. Some people say that the knowledge in books has little to do with reality now. This shows that their knowledge transfer ability has not been fully exercised. It is precisely because learning cannot be well understood and applied in daily life that many people do not attach importance to mathematics. I hope that students can learn mathematics in their lives and use mathematics in their lives. Mathematics is inseparable from life. If they study thoroughly, they will naturally find that mathematics is actually very useful.
Try to write, tear and write your own opinions, and the idea will be OK.
6. Mathematical composition in life
Our life is inseparable from mathematics, such as the weight of food, the year, month and day on the calendar, and some mathematical equations are all related to mathematics.
Today, I want to introduce some math problems to you! When we wake up in the morning and open our hazy eyes, the first thing we see is the alarm clock. The numbers on the alarm clock are the mathematics in life. Because our time in a day is 24 revolutions of the hour hand, 0/440 revolutions of the minute hand/kloc and 86,400 revolutions of the second hand.
Then 24*30= one month, one month * 12= one year, which is the mathematics of time. The vegetable market we all want to go to is also inseparable from mathematics.
On Sunday, my mother took me to buy food. In front of a booth selling cabbage, my mother bargained with the cabbage seller. Finally, I bought three catties of Chinese cabbage at a price of eighty cents a catty, and verbally agreed to buy three catties of Chinese cabbage. My mother asked me, "How much cheaper is it for me to buy food like this?" I thought about it and said to my mother, "It's twenty cents cheaper."
If I have to sell vegetables, my aunt will praise me. When I got home, my mother asked me, "How did you calculate it?" I smiled and said, "Let me count 3 Jin of Chinese cabbage first *0.
8 yuan =2 yuan 4 jiao, then buy 3 kg to get 1 kg =4 kg, and then calculate 2 yuan 4 jiao ÷4 kg =6 jiao, then 8 jiao -6 jiao equals 2 jiao! "This is the unit price * quantity = total price in life. I usually go to Xinhua Bookstore with my mother by bus. The bus travels one kilometer per minute, and it takes about twenty minutes to get there.
My mother asked me, "How many kilometers is our home from Xinhua Bookstore?" I gestured with my finger and said to my mother, "About twenty kilometers." This is the speed of life * time = distance.
"Diligence+Diligence = Success" is the truth I have realized through real life, and it is also the general order in which I solve problems. I always have to look at the questions first, master the relationship, list the formulas and answer them step by step.
Sometimes, we have to draw pictures to understand the topic.
7. 500 words of primary school mathematics composition
Beautiful mathematics
At noon today, in order to measure the size of chopsticks more accurately, I asked my father to take a slender measuring cylinder from the chemistry room. The scale unit is smaller, and each unit is only 1 cubic centimeter. At this point, I seem to feel victory beckoning to me. I really have everything except hands-on experiments.
First of all, I drew a dividing line on disposable chopsticks with a pencil, divided the chopsticks into two sections evenly, and soaked them in water to avoid washing them when measuring. Then, insert the chopsticks into the measuring cylinder, drop water into the measuring cylinder with a dropper, let the water in the measuring cylinder rise to the dividing line of the chopsticks, take the chopsticks out of the measuring cylinder after recording the water level scale (38 ml), and then record the water level scale (34.5 ml) in the measuring cylinder. The difference between the two water level gauges is the volume of this part of chopsticks, which is 3.5 cubic centimeters. In the same way, I measured the volume of the other part of the chopsticks to be 5 cubic centimeters. When the two measurements are added together, the volume of the chopsticks is 8.5 cubic centimeters. When I got the result, I cried excitedly. How proud and proud I am at this time!
Then, according to the situation that each person uses three pairs every day, I calculated the disposable chopsticks consumption of our school (1500 people) and the whole country (1200 million people) for one year, which are 13.96 cubic meters and169000 cubic meters respectively. The result surprised me. What a pity to waste so many wooden disposable chopsticks every year! I hereby appeal to the students at school, no! It is the people of the whole country, and it is not! Everyone in the world should stop using disposable chopsticks. Only in this way can we protect our forest resources, make our earth environment better and let everyone on the earth breathe clean and fresh air.
Change it yourself.
8. I want a good math composition about "Mathematics in Life".
The mathematical treasure from the ocean is that the ocean is the cradle of life. In the ocean, as on land, the form of life becomes a wealth of mathematical thought. People can see many kinds of shell-like spirals. Nautilus and nautilus fossils in the small room gave us an equiangular spiral. Sea lions and other conical shells provide us with examples of three-dimensional spirals. The ocean is full of symmetry-symmetry can be seen in shells, such as clams and trilobites in Paleozoic. Central symmetry is found in radiolarians and sea urchins. The geometric shapes are also colorful-the sea urchins in the eastern United States can see pentagons, while the sharp shapes of seagoing ships can see regular polygons with different sides; The outline of sea urchin is spherical; The involute of a circle is similar to the curve formed by the shell of a bird and clam; The shape of polyhedron can be seen clearly in all kinds of radiolarians; The rocks on the coast become round or oval under the constant beating of the waves; Coral and free jellyfish form a curve, bending randomly or almost splitting in two. The golden rectangle and the golden ratio also appear in marine life-we can find the golden ratio wherever there are regular pentagons. There are many pentagons in the patterns of sea urchins in the eastern United States; The golden rectangle is directly displayed on shellfish with small rooms such as Nautilus. Swimming under the sea can give people a real three-dimensional sense. People can swim in three directions of space almost effortlessly. In the ocean, we can even find mosaic patterns. Countless fish scale patterns are perfect mosaics. Waves consist of cycloids and sinusoids. The movement of waves is like an eternal movement. Waves have various shapes and sizes, sometimes strong and irresistible, sometimes gentle and calm, but they are always beautiful and controlled by mathematical principles (cycloid, sine curve and statistics). Finally, is there no reason to think that the sand in the sea once inspired the ancient people to form infinite thoughts? When we study each mathematical thought deeply, we will find that they are complex and interrelated, and whenever we find them in nature, we will get a new meaning and connection.
9. Mathematical stories in life
Please ask me again if you want something original. If you were here, you would answer. Let me give you an answer first.
During the National Day holiday, my mother and I went shopping in the supermarket to find kilograms and grams. Walking into the supermarket, we first came to the biscuit cabinet. Among so many dazzling cookies, I chose my favorite casual cookie. I looked at it carefully and finally found the "net content100g" in the corner, indicating that the weight of this packet of biscuits excluding the bag is100g. If there is100g,
Then we went to the place where we bought rice. I found that a bag of rice costs 10 kg. If our family eats 2 kilograms a day, our family will eat 60 kilograms a month, which is six bags of rice.
Later, I saw 16 eggs, about 1 kg, a pineapple about 2 kg and a watermelon about 3 kg.
Today, I have gained a lot. I feel the knowledge of kilograms and grams in mathematics. Mathematics is really important in life.
This afternoon, my mother and I went shopping in the supermarket.
When we finished buying what we needed, we were about to leave. I saw sausages on the shelf, so I asked my mother to buy some sausages, and my mother agreed. But just after a few steps, I saw a package with the same brand and weight on the shelf, which contained 10 pieces at 4.30 yuan each. Do you want to buy a pack or a slice? I hesitated. Suddenly, my mind turned and I understood. Just compare and see which one is cost-effective. So I started to calculate: if I buy 10 pieces in retail, each piece costs 40 cents, which is equal to 4 yuan, and the whole package costs 4.30 yuan, which is 3 cents more, so I decided to buy it in bulk. I told my mother the process of my calculation, and my mother praised me for my love of brains.
I read a book today; I feel heavy.
It tells the story of a mathematician. His family was poor, but he was eager to learn, so he was sent to school. But he's not serious. Keep playing. One day, the teacher talked to him: "The food you ate and the money you spent at school were all the fruits of your father's hard work. Who do you deserve if you don't study hard now? " He was inspired a lot. He thought: When I grow up, I want to be an astronomer and a writer.
But later, influenced by a teacher who came back from studying in Japan, he turned his interest to mathematics. Do you know who he is?
He is Sue, a famous mathematician in China.
Smoking is harmful to health. Dad smokes a newspaper every day, 20 cigarettes per pack. I learned that each cigarette can shorten people's life span by 3 minutes, so it will be shortened every day.
20X3=60 minutes = 1 hour life, which shortens life by 365 days per year X 1 hour =365 hours. So I said to my father, "Smoking is harmful to health."