Pictures of Mathematics Handwritten Papers for the Second Volume of Fourth Grade

Mathematics can be seen everywhere in people’s lives and is closely related. If we can use mathematics well, it can make our lives faster. Making math manuscripts is also a way to learn mathematics. What I bring to you below is a picture of the fourth grade mathematics manuscript in the second volume. I hope you like it. Pictures of Mathematics Handwritten Papers in the Second Volume of the Fourth Grade

Pictures of Mathematics Handwritten Papers (1)

Mathematics Handwritten Papers Pictures of handwritten newspapers (2)

Pictures of handwritten papers of mathematics (3)

Pictures of handwritten papers of mathematics (4 )

Mathematics handwritten newspaper pictures (5)

Mathematics handwritten newspaper pictures (6)

Mathematics manuscript materials: Mathematics riddles

1. Gearing up

Answer: Congruent angles

2. Who rushes to Lin? Cangzhou (Type two mathematical terms)

Answer: Two solutions and difference (question and answer method. The answer is: Two solutions and difference, separated)

3. One (Type two) One idiom)

Answer: There are many people there

4. Ten hundred thousand (one idiom)

Answer: Foolproof (do not interpret it as there is no "one" and "ten thousand")

5. One, two, three, four, five, six, seven, ninety (one word)

Answer: Kou (the riddle means "only" less than "eight")

The content of the handwritten newspaper on mathematics: interesting mathematical stories

Story 1

The problem of a chicken and a rabbit in the same cage is one of the famous interesting problems in ancient my country . About 1,500 years ago, "Sun Zi Suan Jing" recorded this interesting question. The book narrates this: Today there are chickens and rabbits in the same cage. There are thirty-five heads on top and ninety-four legs on the bottom. How many are the chickens and rabbits?

The meaning of these four sentences is: There are Several chickens and rabbits are in the same cage. Counting from the top, there are 35 heads; counting from the bottom, there are 94 legs. How many chickens and rabbits are there in the cage? Can you answer this question? Do you want to know how this question is answered in "Sun Zi Suan Jing"?

The solution is as follows: If you chop Remove half of the feet of each chicken and each rabbit, and each chicken becomes a "one-horned chicken" and each rabbit becomes a "two-legged rabbit." In this way, (1) the total number of chicken and rabbit feet changes from 94 to 47; (2) if there is a rabbit in the cage, the total number of feet is 1 more than the total number of heads.

Therefore, the difference between the total number of legs, 47, and the total number of heads, 35, is the number of rabbits, that is, 47-35=12 (rabbits). Obviously, the number of chickens is 35-12=23 (birds).

This idea is novel and unique, and its "foot-cutting method" has also amazed mathematicians at home and abroad in ancient and modern times. This way of thinking is called reduction. The reduction method means that when solving a problem, we do not directly analyze the problem first, but deform and transform the conditions or problems in the problem until it is finally classified as a solved problem.

Story 2

Today, I read a story called "The Swallow Tested the Frog". The story goes like this: One day, the swallow said to the frog: "Let's compare whose math is better. The frog agreed. The frog asked a question: I ate one pest last Monday, and three pests on Tuesday. From now on, we will compete every day. I ate two more pests the day before. How many pests did I eat in a week? The swallow said: "1 3=44 5=99 7=1616 9=2525 11=3636 13=47, you ate it in one go 49 pests.

The frog said: "Test me.

The swallow said: "I ate two pests last Monday, and 4 on Tuesday. From then on, I ate 2 more pests every day than the previous day. Ask me in a week..." "I ate 56 pests." The swallow did not say Finally, the frog has already told the answer. The swallow said: "It's so fast! Teach me the trick of quick calculation." The frog asked the swallow to draw 7 circles, and then click on the first circle to put a pest, and the subsequent circles are smaller than the previous one. There are two more circles, their order is 1, 3, 5, 7, 9, 11, 13, the total is 49. The frog puts a pest outside each circle, and then uses 49 7=56. So smart.

Mathematics manuscripts: Mathematics famous quotes

1. Give me five coefficients and I will draw an elephant; give me six coefficients and I will draw a big elephant. The elephant will wag its tail. —— Cauchy

2. God created the integers, and all other numbers are man-made. ——L. Kronecker

3. Discover every new group that is mathematical in form, because we can have no other guide. 4. Pure mathematics is the magician's true wand.

5. Mathematics is an infinite science - Hermann Weyl

6. Mathematics makes an important contribution to the observation of nature. It explains the simple primitives in the regular structure. Elements, and celestial bodies are built from these primitive elements - Kepler

7. Some beautiful theorems in mathematics have this characteristic: they are easy to be summarized from facts, but the proof is difficult. Hidden extremely deeply. ——Gauss

8. The incomparable permanence and omnipotence of mathematics and its independence of time and cultural background are direct consequences of its essence.——Ebo

9. Questions are the heart of mathematics. ——P.R. Halmos

10. God created integers, and all other numbers are man-made. ——Kronek;