The sixth grade math composition is 300 words

No matter in school or in society, many people have written compositions. According to the characteristics of writing proposition, composition can be divided into propositional composition and non-propositional composition. Still at a loss for composition? The following are five 300-word sixth-grade math compositions I collected for reference only. Welcome to reading.

The sixth grade math composition is 300 words 1 Whenever I have math class, I can always see his active figure. He is Zhou Ruiyuan, a little expert in mathematics in our class.

Zhou Ruiyuan wears a pair of glasses, which makes him more knowledgeable. I remember once, Teacher Dai asked a very difficult question. It's rare for us to scratch our heads and figure it out. At this time, we were all dumbfounded, and the young master raised his hand and thought, this has stumped 55 people in the class. Can you answer that? I want to see his jokes with schadenfreude, and at the same time, I am full of admiration, because his math scores have always been excellent. He pushed his glasses and said slowly, "We can draw a picture to show the burned part …" Looking at Mr. Dai's face, he showed a pleased expression. Sure enough, he didn't answer wrong.

When he finished answering, we were all shocked by his way of thinking. We suddenly realized and said, "Oh, oh! It turns out that this is the solution. " Awesome, you really deserve to be a little expert in mathematics.

There are three good students on his award certificate, a little expert in calculation ... and he is also a little expert in sports. He won honors for his class in the school sports meeting many times. Really both civil and military!

He has a flexible mind and is not rigid in doing problems. Let's say last time, when I was doing my homework, I saw that the teacher didn't talk about the topic in class. I hurried to ask Zhou Ruiyuan. He frowned at first, and then said to me, "You just need to adjust the radius." I was understood by him. I nodded and said thank you.

How's it going? Math experts live up to their reputation!

In a math exam in a cram school, I didn't do well in the exam and made a few mistakes.

On the way home, I clutched the test paper tightly in my hand and felt uneasy. Looking at the scores of the test paper, I seem to hear my mother's criticism and my own sobs. When I got home, I silently put the test paper on the table and stood by myself. My mother looked at me and behaved strangely. She came over and saw my anger rising. One hand rested on her hips and one finger pointed at me and shouted, "Look, you just got this test in a test. What are you going to do in the future? " My eyes are red and tears are swirling in them.

"How many points did Lei Wen get?" Mom held her breath and said.

"9 9 96." I stammered.

"What ninety-six? You only got seventy-five, and you missed twenty-one points! " Mother is pointing at the test paper again. No food tonight. I dare not look at my mother's eyes, only dare to sneak a few glances.

Then grandma came over and touched my head and said, "Try harder next time."

Mom, don't worry about her. You only got so little in the exam. It's no use. "Mother said to grandma.

You go out. "Grandma growled. Mom can't contradict grandma, so she has to go.

Grandma said to me earnestly, "be careful next time, don't be careless, or I will be angry with grandma." Well, go back to your room first. " I nodded and walked silently to my room.

I will do well in the exam next time, so as not to disappoint grandma and mom.

Today, we met our "old friend" again. Let's review the percentage of "old friends" first, because "review old friends and learn new friends"! In the past, we mainly studied two percentage applications. The first is to find out the percentage of one number to another. Answer: What percentage is one number divided by another? The second is to find out how much one number is more (less) than another. Today, we are going to learn how much one number is more than another.

We slowly explored the mystery with the amiable teacher Zhang, but found nothing. Teacher Zhang met us, taught us some little truths, and also used teacher Zhang's old method to "analyze the topic". We analyzed the topic, for example, "There is 45 cubic centimeters of water in the box. After it forms ice, the volume of ice is about 50 cubic centimeters. How much is the volume of ice higher than that of water? " According to Mr. Zhang's method, we frame the "volume of ice", "volume of raw water" and "percentage" in the question with rectangles, draw a triangle under "ratio" and "about increase", write 50 cubic centimeters under "volume of ice" and write the unit "65433" on "45 cubic centimeters of water" in the title. In this way, we groped slowly, and we knew the solution to this problem. The solution to this problem is to find the phase difference first, and then divide it by the unit "1".

In daily life, many things are inseparable from mathematics, which shows how close mathematics is to our lives!

Once, my father and I went to buy carpets and came to the store. My father chose a color. This kind of carpet has two shapes: round and square. The waiter told us that the perimeters of these two carpets are the same, both of which are 12. 56 Deutsche Mark. Dad said, "They are all the same size anyway. You choose! " I quickly shouted, "I'll do the math!" "After that, I asked the waiter for a pen and paper, and calculated the area of the circle with rapt attention according to the method taught by the teacher.

To calculate the area of a circle, first find the radius of the circle: 12. 56÷3。 14=2dm, area: 3. 14×2×2= 12。 56 Deutsche Mark. Square length: 12. 56÷4=3。 14dm, area: 3. 14×3。 14=9。 8596 Deutsche Mark. "Even if the circumference of a circle and a square are equal, their areas are not necessarily equal. It is more cost-effective to buy a round carpet than a square carpet. " I talked with my father endlessly, and my father was dumbfounded. The waiter on the side also praised me for being smart. I don't want to mention how happy I am.

Mathematics is to use it flexibly and connect with the reality of life. Only by mastering the knowledge of mathematics can mathematics serve our lives better. So we should learn math well and make math a good helper in our life.

How thick will a piece of paper be when it is folded in half dozens or hundreds of times? Dozens of meters? Hundreds of meters? How many folds can be as high as mountains?

As we know, the thickness of a piece of paper is generally less than 0.08 mm, assuming that the thickness of paper is 0.05 mm, folding 1 time is 0. 1 mm, folding twice is 0.2 mm ... and so on, folding 10 times is 5. 12 cm. ...

It suddenly occurred to me that I had read a story before. A person puts 2 grains of rice in the first grid, 4 grains of rice in the second grid and 8 grains of rice in the third grid ... the rice in each grid is twice as much as that in the previous grid ... and so on, rice can finally be piled up into a hill.

Isn't origami the same as this meter? I started counting again. Fold 1 times 0. 1 mm, fold 2 times 0.2 mm, fold 3 times 0.4 mm, fold 4 times 0.8 mm … fold 12 times 2 decimeter … fold 22 times 20 9 m … fold 28 times 1342 1. It is more than 4500 meters higher than Mount Everest, which is really an amazing number!