Sixth grade mathematics composition

In study, work and even life, everyone will be exposed to composition to some extent. According to the different writing time limit, composition can be divided into limited composition and unlimited composition. In order to make your writing easier and more convenient, the following is the 10 sixth-grade math composition I compiled for you. Welcome to read, I hope you will like it.

In life, all kinds of things can be changed from an ordinary trivial matter to a vivid and thought-provoking math problem. The application problems we often do are those based on daily life and slightly adapted. "Mathematics comes from life and also serves life." The following are some of my personal experiences, all of which prove that this is a truth.

Once, my parents and I went shopping in RT Mart supermarket. My mother said, "We have run out of laundry detergent at home. I want to buy a bottle today. " I was dumbfounded when I walked to the shelf of cleaning supplies. There are many brands of laundry detergent, including several brands with different specifications. Looking for a home brand, I found that there are three specifications: the first is the price tag of 500g +03.8 yuan, the second is the price tag of1.25kg, and the third is the price tag of 2kg.. I'm considering which one to buy. It suddenly occurred to me that the average method in mathematics was used to calculate the unit price per kilogram of various specifications, and then the unit price was compared. The one with low unit price is more affordable. I calculated that the first unit price was 27.6 yuan, the second unit price was 27.04 yuan, and the third unit price was 26.4 yuan. I resolutely recommended my mother to buy a 2 kg bag. My mother said, "Why?" So I calculated it.

When we finished buying what we needed, we were about to leave. I saw sausages on the shelf, so I asked my father to buy some sausages. My father 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? Suddenly, my mind turned and I understood. I just need to compare it mathematically to see which one is cost-effective. So I began to count: If I buy 65,438+00 retail pieces, each piece costs 4 cents, and * * * is 4 yuan, while the whole package costs 4.30 yuan, which is 3 cents more, so I decided to buy bulk. I told my father about my calculation process, and my father praised me for using my brain, so I became my father's "little accountant".

Mathematics is mysterious and flexible, and there are many kinds of mathematics in life! So mathematics can be applied to real life to solve practical problems. You see, a little thing in life can also become a math problem. Mathematics is everywhere. Let's love math and learn it well!

Since ancient times, which talented student has not been trained by teachers! So the teacher is selfless, I want to cheer for the teacher.

Our math teacher is a female teacher, with a square Fiona Fang round face, slender eyebrows like wicker, long blond curly hair and a pair of intense eyes, which looks very beautiful against the gorgeous clothes.

Her teaching method is also very special. Every time in math class, she tells us a joke, which makes us laugh from ear to ear. Or when a classmate copied her homework, she told us the truth of being a man in class the next day. She usually gives us lessons with a smile. I am glad to have such a teacher to teach me. Because her class can bring me fun, let me listen carefully in class and make no small moves.

Once, she still walked into the classroom with a smile. The students are not as happy as before, because they just passed the exam yesterday and are very worried! At this time, the teacher said to everyone,' Students, the exam is just a test of your study.' Do you think you will make progress if you flinch in the face of this small difficulty? Cheer up. When the students heard this. Suddenly, the dull breath became cheerful. Open your eyes and listen to the teacher, one by one, for fear of missing a word.

Our math teacher is like our second mother. She will help when she is in trouble. Give me encouragement and strength.

Our math teacher has short black hair. He always keeps a straight face and has never seen a smile on his face, which makes people feel heartless and afraid to approach. Every time he comes to give us lessons, he always gives us lessons with a serious face. He looks terrible.

A few minutes before math class, Yang and Yang in our class will "watch the wind" outside the classroom. As soon as they see Mr. Zhang coming to our class, they will run back to the classroom and shout, "Mr. Zhang is coming!" Teacher Zhang is here! " We all rushed to our seats as fast as possible, whether we just wanted to go to the toilet or drink water. The students in the front row rushed back to their seats at extreme speed. Teacher Zhang appeared at the door of the classroom, and we felt a chill coming towards us. We quickly sat up straight and held our breath. Students who used to ask him to check his homework in advance quickly ran to him and lined up neatly. As long as someone doesn't do their homework well, they will give you a "bamboo tube meat". The smell is burning, and most people can't resist it. Many people often burst into tears.

Every time we attend his class, we sit up straight. Once he found the slip number, the result can be imagined. The way he flew into a rage gave us goose bumps.

Although he is fierce to us, his homework is rarely assigned. Sometimes, he will explain some profound mathematical knowledge to us, so that we can understand the contents of senior grades, so everyone is full of reverie about the mathematical knowledge of senior grades. ...

Shh, he's coming! The students sat up straight in their seats again at once. A serious face appeared in front of the classroom again. ...

Ordinary teachers are very strict, but our math teachers are different.

Once the math teacher was giving us a class. Just as he was talking, suddenly a classmate's chair made a "squeaking" sound. Hearing this, the math teacher stopped, frowned and said, "Who will accompany me?" Don't always accompany me. "Words just say that finish, there was a deafening laughter in the classroom.

Seeing us laughing so happily, the math teacher waved his hand and said, "OK, now stop urgently and let's continue to talk about the topic." Soon, almost all the students in the classroom put their mouths on their clothes, and the smile at the corners of their mouths was discovered by the teacher.

Another time, we just finished writing our composition, and we all looked listless and exhausted. Suddenly, the math teacher came into the classroom and asked who didn't finish his homework, so Li stood up, so the math teacher said to Li, "Li, come here!" " So Li immediately stood up and walked to the podium, shaking all over. When he got on the platform, the teacher told him to stand up straight. He stood up straight at once, his legs spread out at an acute angle. After the teacher saw it, he was in distress situation. He joked, "Can you make your legs at right angles?" Li bent his legs at right angles immediately after hearing this, and the fat on his stomach hung down.

Seeing the difficulty, the teacher gave him another difficult problem and said, "If you make your leg 180 degrees, I will let you go back." So Li tried to straighten his legs, but when he was about to succeed, he only heard a creak, and Li broke a big hole in the middle of his pants. He stood up quickly with a shy expression on his face. Watching the excitement, we all laughed.

The math teacher is cautious and meticulous in teaching, but when he finds us distracted, he will try his best to make us happy, so we all like him very much.

Mathematics and Life in Grade Six Before Rui-qi Li in Class 6 (4) of Xiaolingwei Central Primary School, I always thought that mathematics was a very boring thing, but it was that that changed my view on mathematics. It was this summer. One day, it was very hot. After work, my father brought back a big round watermelon. Looking at the beautiful black and green stripes, my mouth watered and I volunteered to cut watermelons.

I'm just about to accept it all. "Slow down ..." Dad said, "I will test you in two ways: first, you eat a quarter of a watermelon; I'll eat a third of this watermelon, a quarter for my mother, a fifth for your little cousin and the rest for you. Which one do you choose? " I heard a fifth, but I didn't even think about it. I said loudly, "I choose the second one!" " "Dad smiled and said," think about it. "I think it over. Isn't this the least common divisor? The lowest common divisor of one third, one quarter and one fifth is 60. One third plus one quarter plus one fifth equals 47 out of 60, which means I can only eat 60 13, and one quarter equals 60 15. Of course, I should choose the first one!

So I was a little embarrassed to say to my father, I didn't think clearly just now, but now I know I should choose the first one. "Ha ha, it doesn't matter, just want to know. Come on, you can cut the watermelon. Everyone is fair, one quarter each! " I cracked two knives, and the big west was divided into four pieces, revealing the red flesh. Take a bite. This melon is so sweet! From this incident, I understand more and more that mathematics is really closely related to our lives.

Sixth grade math composition article 6 Dear math teacher:

Hello!

I don't know how you are recently. Are your muscles comfortable? Is your throat comfortable? Don't be too tired.

You sacrifice yourself like a candle to illuminate others; Like a loving mother, you care about me in every way; Like a gardener, you have cultivated me diligently.

In my impression, you will always be great. Yes! You have done too much for us, and we have done too little for you. You are like a bright lamp, leading us to swim in the ocean of knowledge. Let us know: the truth of being a man. You are fair and just, poor students make progress and praise, and excellent students make wrong criticisms-ah! Teacher! You moisten our hearts like spring rain, and let us know the direction of progress before entering middle school.

I remember once, you had a sore throat and couldn't speak, so you wrote to us by hand. Teacher, you were ill and came to class with illness, so you caught up with your homework, but your illness delayed you. Looking at your tired and busy figure, I can't help being proud of having such an excellent teacher.

Teacher, we love you forever. You are our good teacher! Here, I am very grateful to you, thank you for your concern and love for me! I want to say to you loudly: teacher, you have worked hard! Thank you!

I wish you:

Good health! You did a good job. All the best!

Your student: Shi.

20xx February 2 1

The mask of goodness is Baise, and Baise represents purity. The king's mask is red. Red represents majesty. So, what color is the teacher's mask? Oh, the teacher's mask is kind, strict and kind.

When we talk about our math teacher, we must give him a thumbs-up sign. He is of medium height, with a dark face and looks strong, and his small eyes always show gentle eyes. This is our head teacher and our math teacher, Miss Zhang.

It was a hot summer, the weather was getting hotter and hotter, and summer came. The sun is scorching the earth, and cicadas are probably screaming desperately in the trees because they are too hot. All the students fell asleep at their desks, but Mr. Zhang sat quietly in his bedroom, tirelessly correcting homework. How many boiling days, he tirelessly gave us lectures in the bright classroom. In order to train us into talents, how much sweat he shed and how much effort he spent!

I remember that unlucky mid-term exam, when I got only 69 points in math, I was so angry that my mother slapped me hard. It was his gentle persuasion that calmed his mother's anger. He also taught me to remember the lessons and work hard. Patience, meticulous and persuasive words flow into my heart like a stream in Juanjuan. How excited I was at that time!

Teacher Zhang is a very responsible and easy-going teacher. Every noon, he comes to the classroom to see us naughty children. He always helps us on the platform when we do our homework. When we encounter problems that we don't understand, the teacher always takes pains to explain them to everyone. Sometimes students finish their homework, and he takes us to play in the ravine, so that everyone can breathe fresh air and have fun. Along the way, he talked and laughed with everyone, joked with us from time to time, and told some anecdotes about his experience and what we like to hear. It seems that he is not our teacher, but an experienced elder and wise man.

I can't forget his training and education for me; We can't forget his efforts for our class. I can't forget his energetic figure when playing with other teachers; I can't forget my classmate's anxious expression when he lost money and things; I can't forget his cheerful smile during the spring outing. ...

At this moment, I will never forget every minute with my teacher. I was moved to tears and showed a knowing smile. He is like a good friend, giving me starlight encouragement when I am lost; When I was down, I was comforted like a breeze.

Ah! I really want to say, "Teacher Zhang, you are my eternal pride!" "

My math teacher, Miss Zhu, is 1. About 65 meters, about 30 years old, with shiny black hair and ponytail. There are two big clairvoyance eyes and a pair of ears on the round smiling face, so that you can't make any small moves in class, but she is a very interesting teacher.

Teacher Zhu is very interesting, because she can improve our learning taste at any time in class and let us study easily and happily.

One day, there was no water at school, and the students had no water to drink, so they all looked listless in math class. Teacher Zhu came up with a clever plan to make a classmate tell a joke and make us laugh. We were refreshed at once, the learning atmosphere in the classroom became active, and the number of students who raised their hands to answer questions increased significantly.

In order to improve our interest in learning, Mr. Zhu also adopted the method of star award.

Once, Mr. Zhu saw that our math homework was sloppy and not very serious. Just smiled and said: Now as long as you get an A+ or a five-pointed star in class or homework, you will be a red star. As long as five red stars are collected, Mr. Zhu can win a candy. Although a candy is rare, it is a little hope for teachers. In the next homework, more and more students got A+ and a five-pointed star. In a blink of an eye, we entered the final review stage. Teacher Zhu found that in the test, our grades were not very satisfactory. Teacher Zhu came up with a new idea and said to us: Now a lollipop won 98 points and two prizes won 100 points. Now, our enthusiasm for learning is high and our grades are improving rapidly. Encouraged by this measure, I got a lot of lollipops and my grades improved a lot. I got excellent results in the final exam.

Although I know that learning is not to get the teacher's candy, our achievements in fun learning are sweeter than eating lollipops. I like such an interesting teacher!

After class this morning, Mr. Wu said to us, "In the second class this afternoon, a teacher from another school came to give the students a math class." This exciting remark turned the classroom into a sea of excitement. After studying for six years, no foreign teacher gave us an open class. All the students' faces are filled with excited smiles.

Before the first class in the afternoon, the so-called "teachers from other schools" appeared before our eyes. He, with bright eyes, a pair of black-rimmed glasses and a long black trench coat, looks particularly energetic. He always has a smile on his face, which makes me feel that he is very, very kind. This teacher, surnamed Gao, is a senior teacher at Chengmian Road Primary School. We are anxiously and patiently waiting for the second class in the classroom.

Finally, after a burst of "soft" music, the students filed into the stepped classroom with books, notebooks and pens. I looked around. "Wow!" It doesn't look good, but when I look at it, I am shocked to find that there are many teachers around. I tried to calm my nervous mood and kept telling myself: don't be nervous, don't be nervous, it's just that there are a little more people, it's no big deal ... When I turned around, I saw Miss Gao coming to the podium with a smile on her face.

This lesson "Mathematics in Life-Discount" begins. I was a little uncomfortable at first, but I saw Mr. Gao "dancing" on the podium, instructing us to look at the pictures on the big screen and gesturing at the same time, for fear that we would not understand. The students' fierce speeches made me devote myself wholeheartedly and raise my hand actively. I don't know if it was my luck or a gift from God. I was drawn as soon as I raised my hand. I was shocked, staring at the teacher and pointing at me in disbelief. Seeing the teacher nod, the blood in the blood vessels boiled. I recalled the teacher's question just now: "What else should I pay attention to when going to the mall?" Immediately replied excitedly: "Also pay attention to how much discount." After I answered the question, I saw a kind smile in Miss Gao's eyes and motioned me to sit down. I feel very fulfilled. After a while, I don't know whether the teacher's kind smile encouraged me or I encouraged myself. I have been actively speaking. Later, Miss Gao asked us, "What do you mean by discount?" We raised our hands one by one. Unexpectedly, Miss Gao didn't slap us, but slapped Qin Ziyi, who was "motionless" in the first row. Qin Ziyi hesitated and stood up. I can clearly see that she is extremely nervous, and she must have butterflies in her stomach! She just stood there with her head down, and no one knew what she was thinking. The audience was filled with embarrassment. I'm afraid I'll be criticized. This is a disgrace to our class! Miss Gao went over and said, "Never mind, you haven't decided yet!" " ! Sit down and think! "A word eased the atmosphere. I saw Mr. Gao's kind eyes again, and my heart was warm.

The group discussion began. There are four of us-Zhong Dan, Jiang Haixin, Luo Haiyan and me. In a short time, the four of us filled out the form, and the first one handed it to Miss Gao. Miss Gao asked us to go to the podium and talk about how we should calculate. We walked to the podium and saw so many teachers looking at us, and my cheeks suddenly turned red. I turned my head and said to Jiang Haixin gently, "Is it glorious?" Jiang Haixin smiled and whispered, "I think so too!" In a short time, the students all filled it out. We elected Jiang Haixin to speak. Jiang Haixin gracefully stepped onto the platform. At first glance, her loud voice and dignified appearance really look like a teacher.

The teacher's humorous language and kind words echoed with students' bursts of laughter in the classroom. In this way, this class was spent in laughter, and we happily learned interesting mathematics knowledge in life.

The happy time passed quickly. A class is over. This class is so special, especially the humorous and kind teacher, which left a deep impression on me.

The sixth grade math composition 10 unconsciously, two weeks passed. As a graduating student, I can't help feeling deeply. Everyone is persistent in doing one thing-keep writing a weekly diary! This is good for everyone. It can not only help you consolidate what you have learned, but also exercise your writing ability. Looking back on my study and life a few days ago, I can't help but benefit a lot. After a week's study, we learned the knowledge of finding the lateral area, surface area, volume and volume of a cylinder. Let's recall what we have learned again! First think about the name of the cylinder: the upper and lower surfaces of the cylinder are called the bottom surface of the cylinder, and the surface surrounded by the cylinder has a curved surface called the side surface of the cylinder. The distance between the two bottom surfaces of a cylinder is called the height of the cylinder. By expanding the side of the cylinder, a rectangle can be obtained. The length of the rectangle is equal to the circumference of the bottom of the cylinder, and the width of the rectangle is equal to the height of the cylinder. In this way, we can easily see that the lateral area of a cylinder is equal to the perimeter of the bottom multiplied by the height.

How to find the surface area of a cylinder? Spread all the surface of the cylinder, then we can see that it is like a division symbol, and the surface area of the cylinder is equal to the lateral area of the cylinder plus two bottom areas. Next, I have to do the problem again, and I need a very troublesome cylindrical area. Alas, it is not easy to find the surface area. We need to find the bottom area and the side area, and then add them up. If we are not careful, we will make mistakes. Is there any good way to put it all together? I was thinking. Look at the bottom area and lateral area's formula!

S-base =πr2, which has two bases, namely 2πr2. Let's look at lateral area's formula: S-side =2πrh, add them together, extract the similar term: 2πr, and form a new formula: S-table =2πr(r+h) by using the law of multiplicative association. A new formula was born. With this formula, only phase is needed.

Eat it once and you'll be fine!

I used a formula to find the area of a ring: s ring =π(R2-r2). Come to think of it, this is actually a combination of formulas! Subtract two circles, extract π and * * *, and get a new formula.

The birth of these new formulas is attributed to flexibility and laziness! If it was not too much trouble, there would be no such formula. In fact, it is also important to use the formula flexibly. Sometimes, the questioner steals a lazy person and misses a condition, so we can ask for more. However, we need to be lazy in some places, and we can't be lazy.

There is a problem: there is an inscribed circle in a big square, and the area of the big square is 20 square centimeters. Find the area of a circle.

According to common sense, we should first find the side length of a big square, which is D, then R, and finally the area. However, in this problem, how can we find R&D? Unless a prescription is prescribed, it will be troublesome and will certainly be inexhaustible. What should I do? At this time, it is necessary to use the formula flexibly. Since the area formula of a circle is πr2, it is ok to find r2 instead of R! At this time, we can regard it as a whole a, that is, we only need to find aπ. How to ask? The area of a square should be (2r)2, which is 4r2 after simplification, that is, 4a. So we can use 20÷4=5(cm2) to find a, and then use 5×π≈ 15.7(cm2). The area of the circle is about 15.7cm2, so the area of the circle aπ can be solved without roots. Many formulas can be combined with each other to form a simple and practical new formula. As long as we innovate, we are actually kneading the steamed bread eaten by the giants into a ball and making new rolls. Is this not good?