Mathematics tabloid pictures for sixth grade

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1. Mathematics Composition

Article 1: Mathematics

Mathematics is always so wonderful, so magical. It is like my good friend, which allows me to gain a lot from my studies. Lots of joy.

Tonight, my mother and I competed in oral arithmetic. After we finished, I calculated the time. It took me 11 minutes, but my mother only took 9 minutes. I asked my mother curiously: "How did you calculate like this?" "Fast?" My mother said, "I use multiplication and division to do simple calculations." After my mother taught me this method, I suddenly realized that some calculation problems are like changing faces in an opera, they always have normal faces. appears, but there is a mystery hidden inside. Let’s talk about this question! It should be used first, then used last in division. The dividend and divisor expand or contract the same cofactor at the same time, and the quotient remains unchanged. Taking advantage of this property, many such calculation problems can be simplified. I tried to get a few more questions right, and I was really happy that I couldn't tell.

As long as you understand the laws of mathematics and master its temperament, you will be able to solve problems with ease.

Part 2: Mathematics Diary

This week we learned about decimals. The teacher told us: Decimals are used in many places in life. Today I went to the store to buy things with my mother and discovered decimals.

Walking into the store, we came to the washing area, where there were all kinds of toothbrushes, some expensive and some cheap. I compared it carefully and found that the most expensive toothbrush was 16.5 yuan and the cheapest was only 2.5 yuan. I chose carefully. I chose a children's toothbrush that cost 4.8 yuan. It was pink and had the words " A little blue rabbit, I couldn't put it down holding it. We came to the vegetable area. My mother picked out a few rapeseeds, two cucumbers, two tomatoes, and a cabbage. I took the vegetables to find my aunt to weigh them. I saw her adjust the scale. She weighed the rapeseeds first, and then weighed them on the scale. A small ticket about 0.05 meters long and 0.03 meters wide came out of the bag. Auntie put the small ticket on the rapeseed bag. I took it and looked at it carefully. It said the peeled price per kilogram was 3.58 yuan, and the net content was printed on it. The total amount was 1.61 yuan. Auntie said the other dishes were the same. I looked at them carefully. Cabbage was 6.69 yuan, tomatoes were 1.68 yuan, and cucumbers were 0.90 yuan. We went to the frozen section again and bought Hippo cakes for NT$9.90 per bag and small dumplings for NT$9.90 per bag. This is when my mother asked me: "Do you want anything else?" I said: "Let me think about it." We were walking and thinking, and suddenly Fragrant Rice Crispy Chocolate and Quduoduo came into view. I couldn't wait to pick up two The bag contained a few pieces of chocolate and some Quduoduo. The saleswoman helped me weigh it. Quduoduo was RMB per kilogram, the total net content was RMB, and the chocolate was RMB per kilogram, and the net content was RMB in total. Finally, I happily pushed the cart to the cashier to check out, and my mother spent a *** yuan.

There are decimals everywhere in life. I must observe them carefully and study hard.

Chapter 3: Mathematics

I once heard a Mathematical Olympiad teacher say this: Learning mathematics is like a fish and a net; being able to solve a problem is like catching a fish. , mastering a problem-solving method is like having a net; therefore, the difference between "learning mathematics" and "learning mathematics well" lies in whether you own a fish or a net.

Mathematics is a course that requires very much thinking and is very logical, so it always creates misunderstandings.

Geometric figures in mathematics are very interesting. Each figure is interdependent, but each has its own merits. For example, a circle. The formula for calculating the area of ??a circle is because the radius is different, so we often make some mistakes. For example, "A pizza with a radius of 9 cm and a pizza with a radius of 6 cm is equal to a pizza with a radius of 15 cm." In terms of proposition, this question first confuses everyone and creates an illusion. It cleverly uses the area formula of a circle. , which creates a wrong balance.

In fact, a pizza with a radius of 9 cm and a radius of 6 cm is not equal to a pizza with a radius of 15 cm, because the area of ??a pizza with a radius of 9 cm and a radius of 6 cm is while the radius The area of ??a pizza with a radius of 15 cm is So, a pizza with a radius of 9 cm and a pizza with a radius of 6 cm are not equal to a pizza with a radius of 15 cm.

Mathematics is like a peak, reaching straight into the sky. When we first started climbing, it felt very easy, but the higher we climbed, the steeper the mountain became, making people feel scared. At this time, only Only those who truly love mathematics will have the courage to continue climbing. Therefore, those who stand at the top of mathematics all love mathematics from the bottom of their hearts.

Remember, people standing at the foot of the peak cannot see the top.

Chapter 4: Mathematics

Mathematics is very interesting and closely related to our lives. As long as you observe carefully, these mathematics in life will come out. So, on a sunny weekend, I took my second-grade cousin to the street to "look for mathematics."

As soon as we came to the street, the first thing that caught our eyes was the wide road. Clean and tidy sidewalks, two rows of street lights and rich green belts. By the way, didn’t the teacher teach us about planting trees? If we think of street lights as trees, then there are 2 rows of street lights on the street, with 25 seats in each row. The distance between each seat is about 10 meters. Putting these conditions together, isn't it just a matter of planting trees? I suddenly felt thirsty while walking, so I went to a convenience store and bought two bottles of water for 4 yuan. I asked the waiter 5 yuan, and she gave me back 1 yuan, because it was another math problem. My brother found that "liter" was written under the bottle. "Liter" is a unit of weight and a kind of mathematics. Ha, I didn't expect to buy water. So much math too! Unknowingly, we arrived at the square. There were many triangles, cubes, and cuboid objects hanging above the flower beds in the square. At this time, my cousin asked me: "Sister, what are these shapes collectively called?" I told him that these are geometric figures and a type of mathematics...

It turns out that there are so many mathematics, dear friends, you should come and have a look.

Chapter 5: Mathematics in Life

In the afternoon, my father came back from Shunde. After dinner, my father said: "Feifei, let me test your mathematics, okay?" I patted my chest and said, "No problem!" Dad said, "My salary has been raised this month. My salary is higher than your mother's. Our combined monthly salary is 3,500 yuan. The monthly salary difference is 300 yuan. What do you think?" How much salary do I get per month?" After listening to my father's words, I drew a line diagram on the paper to help me understand.

I quickly calculated the answer and told my father. First, consider mother's salary to be the same as father's, then the monthly salary of father and mother is one yuan), and then divide the monthly salary sum into two equal parts, and the calculated one is father's monthly salary. It’s yuan).

Dad listened and nodded with satisfaction. At this time, my mother who was cooking said to me: "Do you have any other methods?" I calmed down and observed and thought again. I found that the key to this question was to find out who should be used as the standard. The standards are different, and the methods are also different. Just different.

So, I came up with a second method: "Using mother's salary as the standard. Assuming that father and mother have the same salary, then the sum of their monthly wages is yuan. Then divide the sum of monthly wages into two equal parts to find One share is mom's monthly salary plus dad's 300 yuan more than mom, which is dad's monthly salary, which is yuan), right?" Dad listened and nodded with satisfaction, "It seems that there is no Mathematical Olympiad class. It’s all for nothing! Haha!” Dad even praised me, it’s all because of mathematics!

2. Mathematics Stories

1. The ancient Greek scholar Archimedes died at the hands of Roman enemy soldiers attacking Sicily (before his death, he still said: "Don't do it"). "Broken my circle."), in order to commemorate him, people engraved the figure of a ball inscribed in a cylinder on his tombstone to commemorate his discovery that the volume and surface area of ??a ball are both one-third of the volume and surface area of ??a cylinder circumscribed two.

2. Archimedes was born in Syracuse, Sicily, at the southern tip of the Italian Peninsula in 287 BC. His father is a mathematician and astronomer. Archimedes had a good family upbringing since he was a child. At the age of 11, he was sent to Alexandria, the cultural center of Greece at that time, to study. In this famous city known as the "City of Wisdom", Archimedes read widely and absorbed a lot of knowledge. He also became a disciple of Euclid's students Eratoses and Canon, and studied "Elements of Geometry" .

3. Salles was born in 624 BC and was the first world-famous mathematician in ancient Greece. He was originally a very shrewd businessman. After accumulating considerable wealth by selling olive oil, Salles concentrated on scientific research and travel. He is diligent and eager to learn, but at the same time he is not superstitious about the ancients. He has the courage to explore, create and think actively about problems. His hometown is not too far from Egypt, so he often travels to Egypt. There, Salles became acquainted with the vast mathematical knowledge that the ancient Egyptians had accumulated over thousands of years. When he traveled to Egypt, he used an ingenious method to calculate the height of the pyramid, which made the ancient Egyptian King Amesses envious.

4. Zu Chongzhi’s outstanding achievement in mathematics was the calculation of pi. Before the Qin and Han Dynasties, people used "three days per day" as the pi rate, which was the "ancient rate". Later, it was discovered that the error of the ancient rate was too large. The pi should be "one diameter of a circle and three days more than three days." However, there are different opinions on how much there is. It was not until the Three Kingdoms period that Liu Hui proposed a scientific method for calculating pi - "circle cutting", which uses the circumference of a regular polygon inscribed in a circle to approximate the circumference of a circle. Liu Hui calculated that the circle is inscribed in 96 polygons and obtained π=3.14. He also pointed out that the more sides the inscribed regular polygon has, the more accurate the π value obtained. Based on the achievements of his predecessors, Zu Chongzhi worked hard and calculated repeatedly, and found that π is between 3.1415926 and 3.1415927. And the approximate value of π in the form of a fraction is obtained, which is taken as the approximate ratio and the density. Taking six decimal places is 3.141929, which is the fraction closest to the value of π within 1000 in the numerator and denominator. It is currently impossible to investigate exactly what method Zu Chongzhi used to arrive at this result. If he were to calculate according to Liu Hui's "circle cutting" method, he would have to calculate that the circle is inscribed with 16,384 polygons. How much time and tremendous labor this would take! This shows that his tenacious perseverance and intelligence in scholarship are admirable. It was more than a thousand years later that foreign mathematicians obtained the same density calculated by Zu Chongzhi. In order to commemorate Zu Chongzhi's outstanding contribution, some foreign mathematics historians suggested calling π= "Zu rate".

3. Mathematical Jokes

1. Professional Characteristics

Three scientists went from London to Scotland to attend a conference. Shortly after crossing the border, they discovered a black sheep. .

"How interesting," the astronomer said, "that the sheep in Scotland are all black."

"This inference is not reliable," the physicist responded, " We can only conclude that there are some sheep in Scotland that are black."

The logician immediately went on to say: "All we really know is that there is at least one place in Scotland that has at least one black sheep. A black sheep.

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2. Number of lives and deaths

The British poet Jason wrote a poem, a few lines of which read: "Every minute someone dies, every minute someone is born..."

A mathematician wrote a letter to question after reading it. The letter said: "Dear Sir, it is a pleasure to read this masterpiece, but there are a few lines that are illogical and it is difficult to agree with it. According to your algorithm, the number of lives and deaths every minute balances out, and the number of people on the earth is eternal. But you also know that the population of the earth is actually constantly growing. To be precise, 1.6749 people are born every minute, which is quite different from the number you provided in your poem. In order to be realistic, if you have no objection, I suggest you use the fraction 7/6, that is, change the verse to: "Every minute one person dies, every minute one and one-sixth person is born... ”

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3. Mathematicians talk In love

The mathematician was walking in the park with his girlfriend. His girlfriend asked him: "Do you really mind if I have freckles on my face?"

The mathematician replied gently: "Absolutely not! I love working with decimal points the most."