In this way, among the 44 students in our class except myself, 22 people put their energy into pursuing movie stars. Over time, how can they study hard? 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.
2. The 200-word composition about mathematical statistics chart is more than enough, so I copied it down, hoping to help Zhou Xiao! These days, the students in the class have been investigating in the class in order to write a paper on statistics. I am no exception, but it makes people feel a little opportunistic, because I am investigating what my classmates have been investigating 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, 22 of the 53 students in our class except myself focused on pursuing movie 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 in the end, you will give your parents' hard-earned money to others in vain. Idolize is ok, but only if the study is not 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, more importantly, I think these stars used to be unknown and ordinary, but because of their perseverance and courage to fight, they eventually became the stars that attracted people's attention. This time I learned about my classmates' hobbies and enriched our after-school life. Although I am late, please understand and thank you for your adoption.
3. Make a survey and write a composition with statistical methods. Investigation report on the use of students' pocket money in our class With the improvement of people's living standards, parents give their children more and more pocket money. So, how do children control these "unearned" pocket money? Through the investigation of the whole class for a period of time, I am deeply touched. There are 465,438+0 students in our class, most of whom have pocket money. A small number of boys can be called "gluttony". As soon as the bell rang, "gluttons" came to the snack bar one after another, and eating, drinking and gnawing were all their goals. As soon as those bosses see this. In this way, 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 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 a few boys is commendable: some students gave some waste beverage bottles or their own money to students who collected class fees, because our class had a class fee of more than 30 yuan and bought clocks and mops, which was well received by the whole class. Boys have their own "reasons" for spending money, so what about girls? After my investigation, I found that girls spend the most money on 5 yuan a week, of which 3-4 yuan are 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, many children naturally need pocket money. I hope that students can use these pocket money in really useful places, learn to use money scientifically, and cultivate their ability of "financial management" from an early age.
4. Write math diary's 200 words for statistical preview Part I: Statistics We learned statistical knowledge this week, so I simply summarized and counted the time of the day on Saturday night. The results are: Chinese 30 minutes, math 40 minutes, English 45 minutes, playing the piano 2 hours, watching TV 1 hour, one * * 295 minutes.
Let me analyze my own statistical results: 1. If I am more focused, faster and more efficient when doing my homework, I want to do my homework in less time. It was because I didn't do my homework carefully that I dropped 7 points in the math exam on Friday. It's embarrassing to read that test paper now.
Watching TV for a long time is not good for my eyes. I will definitely watch TV for no more than 15 minutes at a time in the future. Playing the piano takes the longest time, because I have more piano homework and less practice at ordinary times, so I can only have a good surprise on Saturday, otherwise I will be criticized for going to the teacher on Sunday.
I have long wanted to count my piggy banks, but my mother doesn't agree. She said it was too much trouble. But today, my mother didn't know what was going on, and suddenly said, let me count. It's really weird.
However, I am very happy. But when all the money was poured out, I found, "Oh, my God, there are so many. When should I count them?" There are one yuan, five cents, ten cents, five cents and two cents.
I counted it carefully over and over again, but every time I counted it halfway, I lost count. What shall we do? Just when I was particularly anxious, my mother said, "Let's think of another way, son. If you keep counting like this, when can you count right? " But in what way? I don't know what to do. Mother said at this moment: "I will teach you six words: classification, sorting and statistics!" " "My mother told me," Let's classify them first, and then sort each category into piles that are easy to count, such as 10 yuan's pile or 5 yuan's pile, and then look at it statistically. Didn't you just learn statistics? If you want to learn something, what will you gain if you try it? "So, I sorted the money into small piles according to the method taught by my mother. Every 10 block is piled into a small pile, and every 10 small pile is arranged in a row.
Then, with the help of my mother, I made a "statistical report". Now, I know so hard to forget about it.
Look at the calculations in the table. Am I right? Finally, I added all the money together: 426 yuan+10 1 50 yuan =527 yuan. 527 yuan 50 points+2 points in 42 yuan =569 yuan 70 points.
569 yuan, 70 cents +30 cents = 5 cents 570 yuan, 5 cents 570 yuan+1 cent = 1 cent 570 yuan. Haha, I'm really happy! I finally know how much money I have saved.
Chapter 3: The whole "Wow-Wow-",a new statistical member-Fan Tu has come to the School of Statistics of Mathematics Kingdom. "This is a new member-fan chart, please give me your advice in the future."
Teacher Elf said, "Sector statistics are excellent in the class, but bar statistics and broken line statistics are not to be outdone, and the results are also very good." Everyone is chasing each other every day and rarely comes and goes. " A month passed, and one day, the elf teacher said, "Students, tomorrow is the final exam. Please be prepared. "
The next day, in the exam, there appeared a complex topic expressing the relationship between the total number and the partial number. When I look at bar charts and line charts, I get blindsided and stare at the test paper. Only the fan map is not dumbfounded. It thought about it and immediately wrote down the answer. The test results came out, and the fan chart won the first place. The bar chart and the broken line chart are puzzled: "Why are we all statistical charts, but we can't solve the problem of the relationship between the total number of representatives and the part number?" So they went to ask the fans for pictures together.
The pie chart said with a smile, "I am different from you. My characteristic is that I can clearly show the relationship between quantity and total;" You also have characteristics: the characteristics of bar charts can clearly indicate quantity; The characteristic of broken-line statistical chart is that it can indicate the increase or decrease of quantity. "After listening to the sector statistics, bar charts and line charts suddenly realized that each chart has its own characteristics. Since then, the three people have become very good friends, and the class group has become more harmonious.
Chapter 4: Statistics and Possibility At noon today, my mother asked me about the possibility in Unit 6 "Statistics and Possibility" in Grade Five. Mom said, "Is it fair for the two teams to play basketball and toss a coin to decide who will kick off?" I said, "I don't know."
Mom said, "Of course it's fair, because the probability is 50% to 50%!" " "Then, my mother asked," There are two playing cards on the table, namely Spades A and Hearts A, and Xiao Li and Xiao Jun each touch one. Who is more likely to touch the ace of spades? "I said without thinking," because there are only two playing cards, the probability is 50% to 50%, so their chances of touching each other are the same. "My mother praised me happily and said," Son, you are amazing! " "Then, my mother asked," I have five white balls and six black balls (the same shape and size) in my pocket.
Touch any one, which ball is easier to touch? "I thought for a moment and said," because one is 5 and the other is 6, the probability is 50% to 60%, so there is a great possibility of touching the black ball. Hearing this, my mother said happily, "Son, you learn so fast!" " "Finally, my mother asked me," 1, 2, 3, 4, 5 and 6 are written on six faces of a cube. What is the possibility of throwing three? " Without thinking, I replied, "There is a 6-in-6 chance of 1."
My mother praised me again: "son, you know all the questions my mother can't do." You are too powerful. " ! "Chapter 5: When I first came into contact with the word" statistics ",I felt very curious. Later, I felt a little tired because I had to draw a statistical chart. I finally realized that "statistical chart" is very convenient in life and began to like "statistics".
Not only in textbooks, but also in life without statistical charts. The bar chart is the most convenient for social investigation. The line chart is used to see if your academic performance has improved, and the fan chart is used to know your daily schedule ... Put the statistical chart on paper, and all kinds of information can be seen at a glance.
Imagine how much trouble it would be to express it in words without statistical charts. Fan map is me.