2. How to write the composition of the statistical questionnaire These days, students in the class are investigating in the class in order to write a statistical composition.
I am no exception, but I don't get along with the surveys made by other students, which makes people feel a bit opportunistic. Because I'm investigating the contents of my classmates' surveys these days.
These days, some students have investigated the fruits that students like to eat; Some investigate their favorite stars; Some people investigate books that people like to read ... Based on the survey, I made a fan-shaped statistical chart: in this way, among the 44 students in our class, except myself, 22 have devoted their energy to the pursuit of film and television stars. With the passage of time, how can they learn well? Even if you go to cram school, it will only cure the symptoms, and finally give away your parents' hard-earned money for nothing. Of course, idolize is ok, but the premise is to ensure that learning will not be affected.
We can't let idolize forget to study. Even our He Laoshi says Jay Chou's Chrysanthemum Terrace is worth listening to. I believe that few people can resist soothing tunes and beautiful lyrics.
However, while the beautiful songs are beautiful, it is more important to think that these stars used to be unknown and ordinary, but because of their perseverance and courage to fight, they eventually became stars that attracted people's attention. This time I learned about my classmates' hobbies and enriched our after-school life.
3. How to write a composition of statistical questionnaire These days, students in the class are investigating in the class in order to write a composition about statistics.
I am no exception, but I don't get along with the surveys made by other students, which makes people feel a bit opportunistic. Because I'm investigating the contents of my classmates' surveys these days.
These days, some students have investigated the fruits that students like to eat; Some investigate their favorite stars; Some people investigate books that people like to read ... Based on the survey, I made a fan-shaped statistical chart: in this way, among the 44 students in our class, except myself, 22 have devoted their energy to the pursuit of film and television stars. With the passage of time, how can they learn well? Even if you go to cram school, it will only cure the symptoms, and finally give away your parents' hard-earned money for nothing. Of course, idolize is ok, but the premise is to ensure that learning will not be affected.
We can't let idolize forget to study. Even our He Laoshi says Jay Chou's Chrysanthemum Terrace is worth listening to. I believe that few people can resist soothing tunes and beautiful lyrics.
However, while the beautiful songs are beautiful, it is more important to think that these stars used to be unknown and ordinary, but because of their perseverance and courage to fight, they eventually became stars that attracted people's attention. This time I learned about my classmates' hobbies and enriched our after-school life.
4. Write an article about 300 words "I have applied the knowledge of mathematics".
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 they can't understand it well and apply it to daily life that many people don't 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.
I hope to adopt it, but it's a bit talkative.
5. Ask for two math compositions. When we do arithmetic problems, we are most afraid of doing complicated ones. At this time, clever calculation comes into play. Now, let me teach you two clever calculation methods. 1No.: If you encounter a "head-to-tail" arithmetic problem, you can do this: multiply the number on the tenth by the number on the tenth plus the product of 1. How's it going? Have you figured it out? It's actually quite simple. First 5+ 1*5=30, then 30* 100=3000, and finally 3000+(3*7)=302 1. It's simple. In fact, you just need to follow the above method. The second type: "Head to tail. Now teach you: the product of ten digits plus the sum of one digit, then multiply by 100, and finally add the product of one digit. For example: 26*86=? Haha, it is very simple, as long as you first 2*8+6=22, then 22* 100=2200, and finally 2200+(6*6)=2236. Now that you have learned this method, you can use this method to calculate such problems. How's it going? Clever calculation is very useful! When we do arithmetic problems, we are most afraid of doing very complicated problems. At this time, clever calculation comes into play. Now, let me teach you two clever calculation methods. 1No.: If you encounter the arithmetic problem that "the head and tail are ten", you can do it skillfully: multiply the number on the tenth by the number on the tenth plus the product of 1, and then multiply it by 1. How's it going? Have you figured it out? It's actually quite simple. First 5+ 1*5=30, then 30* 100=3000, and finally 3000+(3*7)=302 1. It's simple. In fact, you just need to follow the above method. The second type: "Head to tail. Now teach you: the product of ten digits plus the sum of one digit, then multiply by 100, and finally add the product of one digit. For example: 26*86=? Haha, it is very simple, as long as you first 2*8+6=22, then 22* 100=2200, and finally 2200+(6*6)=2236. Now that you have learned this method, you can use this method to calculate such problems. How's it going? Clever calculations are very useful.
6. Average Mathematics Composition of Grade Four 100 Word Mathematics Average Composition
Miss Chun came to the world in a long skirt. She wrinkled the river, turned the grass green and turned the apricot flowers red. There lived a little bear named Dudu in the forest. Because he is clever and careful, everyone calls him "little genius". Dudu Bear took advantage of this fine weather to visit his good friend Brother Pig and chat with him.
Dudu Bear trotted all the way. After about 5 minutes, he arrived at Brother Pig's house. As soon as it raised its hand to knock on the door, it saw a notice posted on the door, which said, "If you answer the following questions correctly, the door will open automatically. The six numbers A, B, C, D, E and F are known, and their average value is 107. The average of the four numbers B, C, D and E is 25, A is smaller than the average of these six numbers, A is twice as big as F, and what are the numbers of A and F respectively? " Why is this? Dudu bear thought about it and knew the reason. It turns out that wolves will haunt the forest at night recently. In order to prevent the invasion of wolves, this notice was posted. Dudu Xiong thought, since everyone calls me "little genius", why don't I take this opportunity to test myself and prove myself by the way. Thinking of this, Dudu Bear took out a pen and paper and made a draft. Because the average of these six numbers is 107, we can calculate the sum of these six numbers: 107*6=642, and the average of four numbers is 25 less than 642, so we can calculate the average of four numbers: 107-25=82, and their sum is 82 * 4. So the sum of a and f can be found by the above number: 642-328=3 14. From the above conditions, if we regard F as a copy, then A=3F+2, that is, 3f+2+f = 3 14, f = 78, and a = 3 * 78+2 = 236. Haha, I did it, and then Dudu Bear wrote the answer at the bottom of the notice. Sure enough, the door magically opened, and two good friends met again, hugging each other, singing and dancing, so happy!
Clever boy, can you do this problem? Is he a little genius like Dudu Bear? Use your head quickly and walk into the world of mathematics, and you will feel more exciting!
7. Writing life with mathematics as the topic is inseparable from mathematics. For example, the weight of food, the date of a year 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 is not equal to 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.
In fact, there are many wonderful mathematics in life, waiting for us to discover and discover.
8. Kneeling for "Using statistical methods learned in math class to study practical problems in study life" is a survey report on the use of pocket money by students in our class.
With the improvement of people's living standards, parents give their children more and more pocket money. So, how do children spend these "unearned" pocket money?
Through the investigation of the whole class for a period of time, I am deeply touched. There are 4 1 students in our class, most of whom have pocket money. A few boys are called "gluttonous". As soon as the bell rang, "Mr. Gluttony" came to the snack bar one after another. Eating, drinking and having fun are all they are looking for. As soon as bosses see these "big spenders", their faces are filled with attentive smiles, and bills keep flowing into their pockets.
There are more than 20 boys in my class. According to statistics, the amount spent on pocket money per person per week is about 10 yuan (of course, there are more), and the average amount spent on snacks is 8 yuan money. Of course, most boys like to save money and buy some comic books and game machines. . . . . . However, the generosity of several boys is commendable: some students gave some waste beverage bottles or their own money to students who collected class fees, so that our class paid more than 30 yuan for class fees and bought clocks and mops, which was well received by the whole class.
Boys have their own reasons to spend money, but what about girls? After my investigation, I found that girls spend the most money in 5 yuan every week, of which 3 ~ 5 yuan is spent on stationery. Why do girls spend more money on school supplies than boys? After a week's investigation, I know that girls like to buy some cartoon notebooks with beautiful illustrations besides paper and pens, which is their favorite!
With the development of society and the enrichment of material life, just as all kinds of modern household appliances are indispensable to families, pocket money is indispensable to many children. I hope that students can use these pocket money in really useful places, learn to use money scientifically, and cultivate the ability of "managing their own finances" from an early age.