How to write a little knowledge about making desk calendars?

1. Grade three math problem: What are the steps to make an annual calendar?

Teaching objectives:

1, so that students can consolidate the knowledge of the year, month and day and use it mentally.

2. Cultivate students' observation ability and thinking order.

3. Cultivate students' practical ability.

Key points and difficulties:

The method of making an annual calendar.

According to class hours:

A complete calendar, a separate calendar, a desk calendar and a book calendar, cardboard and markers.

Teaching process (this article comes from Feifei. Lesson. One piece Garden, excellent educational resource network);

First, pre-school preparation

1, investigation

(1) Question: What kind of calendar have you seen?

(2) Common display calendars in life: whole book, loose leaf, desk calendar and book calendar.

(3) Thinking: How are these calendars made?

(4) Question: Do you want to make your own almanac?

2. Discussion:

What steps are needed to make a calendar?

(1) What steps are needed to determine an annual calendar?

(2)1* *12 months, 4 months for each line, 3 lines in total.

(3) Rest days, important festivals and anniversaries can be marked with colored pens.

Second, make an annual calendar.

1, group cooperation

2, teacher guidance

Third, show and communicate.

1, production method of each group of communication

2. A guide to discovering the advantages of each group in making calendars.

Fourth, use

Think about what else you can do with your calendar.

Reflection after class:

1, guide students to work together and learn to communicate.

In practice, students should not only learn how to solve problems, but also learn to cooperate and communicate. In the activities of making calendars in groups, teachers should pay attention to guiding each group and guide them to cooperate according to their own specialties, such as "Who designs lace", "Who writes the date of each month" and "Who marks important festivals" shown in the teaching materials. In addition, after the production activities, the production results were also displayed and exchanged. In the exhibition, students not only experienced the joy of success, but also appreciated and learned the advantages of others, and cultivated the consciousness of recognizing and learning from others.

2. Pay attention to let students realize the close connection between mathematics knowledge and real life.

In teaching, teachers guide students to experience the role of calendars in real life. Ask the teacher's question "What else can you do with your calendar" to arouse the students' discussion.

2. Mathematical math diary in Calendar

1. During the National Day holiday, my mother and I went to the supermarket to find kilograms and grams. Walking into the supermarket, we first came to the biscuit cabinet. Among so many dazzling cookies, I chose my favorite casual cookie. I looked at it carefully, and finally found "net content100g" in the corner, indicating that the weight of this packet of biscuits excluding the bag is 65438+. Then if there is 10 packet of biscuits, it is 1 kg. Then we went to the place where we bought rice. I found that a bag of rice costs 10 Jin. If our family eats 2 Jin a day, our family will eat 60 Jin a month, which is six bags of rice. Later, I saw the egg of 16, which was about 65438. Today, a watermelon weighs about 3 kilograms. I have gained a lot. I feel that the knowledge of kilograms and grams learned in mathematics is really important in life. Many people think that the number * * * was invented by * *, but I have always been skeptical about him. As I expected, today the math teacher introduced the real origin of the number * * *. It turns out that this is a misunderstanding! The real inventor of * * * numbers was Indians, because the navigation industry of * * * people was very developed at that time, and they spread the numbers from India to * * *. Europeans learned this simple counting method from books and thought it was invented by them, so they called it * * * number. Later, this misunderstanding spread to China. Finally, I really want to say to Indians: "Thank you for giving us human beings. Because of this, I like math very much. Not only is the digital kingdom magical, but I also have rich knowledge of the history of mathematics. 5.3 (4) He Chao found a math problem at home today. I found that a cup of cola is 800g, a cup of green tea is 500g, and a cup of iced black tea is unknown, so I added a message that iced black tea is 200g less than cola. So, I calculated according to the teacher's method: 800-200=600, then 600+500= 1 100, and finally1100+800 =1900, so I hope that children can observe more math problems around them. 6. Addition and subtraction are indispensable in our life. There are many things around us that need to be added and subtracted. For example, in school, I count scores and numbers-in life, my mother goes shopping to pay for food; The family also uses addition and subtraction to calculate the monthly expenses. All this is related to addition and subtraction, so addition and subtraction play a very important role in our life. Addition and subtraction are really wonderful! 7. Three (4) Zhuang Yi Now our math class is solving practical problems of two-step calculation. Today is Sunday, and our family went to Tianmu Lake to play. On the way to Tianmu Lake, I thought of such a problem. When the bus stopped at the first stop, I saw eight people get on, and three people got on at the second stop. If the number of people getting on the bus at the third stop is twice that at the first and second stops, what about the third stop? Son, will you solve this problem? Try it with what we have learned. 8.: The three (3)-leaf 24-hour timing method is really omnipotent. If you don't believe me, look at how I spend the weekend: first get up at 7:30, then wash my face at 7: 45-8: 00, have breakfast at 8: 00-8: 15, and at 8: 15-. Lunch10: 30-1:00, lunch11:00-15: 00, lunch15: 00-650. Dinner 17: 30- 18: 00, TV 18: 00-20: 00, computer 20: 00-2 1:00, sleep 2 1:00. If you have this idea, you must also keep a diary like this! 9. Every little makes a mickle this afternoon, my mother and I went shopping in the supermarket.

When we finished buying what we needed, we were about to leave. I saw sausages on the shelf, so I asked my mother to buy some sausages, and my mother 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? I hesitated. Suddenly, my mind turned and I understood. Just compare and see which one is cost-effective.

So I started to calculate: if I buy 10 pieces in retail, each piece costs 40 cents, which is equal to 4 yuan, and the whole package costs 4.30 yuan, which is 3 cents more, so I decided to buy it in bulk. I told my mother the process of my calculation, and my mother praised me for my love of brains.

Math Newspaper Today, we published the Math Newspaper for Primary School Students. This issue is really wonderful. The above is about how to keep books with you, how Mao Yisheng practices memory, the origin of numbers and so on. On the one hand, there are many math skills, such as how to find the rules and how to remember knowledge, and on the other hand, there are some math stories, from which I have gained a lot of content that I can't learn in class.

So I think I can master more knowledge every time I read the math newspaper, and I like it very much. The Mystery of Mathematics Zhang Na Mathematics is everywhere in our life.

For example, how much does it cost to go to the vegetable market to buy food? How much does it cost to buy things in the supermarket? .

Also, knowing the kilograms and grams, you can calculate the price of the weighed things yourself. So, is mathematics important? So, I want to remind you-you must learn math well! Mathematics is mysterious, it can let us know some unknowns.

So some children find math a bit difficult, and sometimes they have to ask for a tutor. But math is also very flexible.

Besides what I just mentioned, there are many kinds of mathematics in life! "Tintin Baby Back Formula" Li Haolan, Class 3 (2), Hutangqiao Central Primary School. On Sunday, Baby Tintin recited the formula, but when she recited it to March 8th, she stopped. At this time, my sister just came over. Tintin quickly asked, "Excuse me, March 8?" ..... "Sister said angrily," You are only' 38'! Learn to swear before you get old! "My mother, who was cooking in the kitchen, heard the sound and replied," March 8 Women's Day ".

I laughed secretly, but they all misunderstood: Tintin was not cursing, nor was he cursing.

Math diary has eight essays and two mathematical calendars.

(1) Mathematics impressed me deeply.

Math, Math I love you, just as mice love rice. Do you know why I like math? Because of the charm of mathematics, it attracted me deeply.

I learned a new knowledge today, which is a simple addition and subtraction algorithm. After learning the simple addition and subtraction algorithm, my calculation speed is much faster and it is easier to learn to calculate. Give an example! For example: 367+498=? I just have to think like this: add up 498 to make 500, and then use 367+500. I found that I added 2 more, so I subtracted 2 from the total to get 865. And 796+295? I think so: 796 can be added to 800, 295 can be added to 300, one plus 4 and one plus 5, then the formula becomes 800+300-4-5= 109 1. Look, how convenient it is!

After learning the simple algorithm of addition, learning the simple algorithm of subtraction will be much easier. Such as: 483-299, hehe, you can find the way by gently moving your head. I'll take 299 and subtract it from 300, because it's 1, so just add 1 to the result, which is 483-300+ 1= 184, and the calculation is much simpler. However, I can warn you: it's best not to think about the minuend when doing subtraction, or you'll be in trouble!

Now, I like math more and more, because it makes me learn to calculate the results quickly, and math really makes me remember deeply!

Preview is a golden key.

After math class today, the teacher arranged for us to preview division estimation.

What is a preview? Why does the teacher want us to preview? I came home with a surprise. Check the information and ask your parents. It turns out that preview is to read the contents of the book by yourself before learning a new lesson. Mark what you don't understand, and then listen carefully in class. ) In this way, you can have a preliminary understanding of new knowledge.

I previewed the division estimation curiously. Through preview, I know that when estimating 538÷62, 538 can be regarded as 540 and 62 as 60, so 538÷62≈9. It turns out that preview can help me clear away the obstacles in math learning and have a preliminary understanding of estimation. Can quickly accept new knowledge in class. Even if there is doubt, it can be easily solved.

Therefore, it is very important to preview before class, so we must develop the good habit of preview, because successful preview can make the lecture quality higher and the learning efficiency higher, so it is the golden key to open the door to knowledge.

(3) A special math contest

The annual math contest began. The forest is very lively. This year's contestants are: cotton seed, turtle, tiger and lion.

The game has already started. Teacher Swan first gave each of these candidates a test paper, and then said to them, "Whoever can calculate correctly and quickly in a certain period of time will win the Wisdom Cup Award."

As soon as Mr. Swan finished. These candidates began to write. Rabbits run fast and do fast. I saw that she was very clever and soon finished more than half of it. Come on, let's have a look at its test paper. "dizzy! ! ! "You see: 80-70= 150, 20 ÷ 4 = 80 ... What a mess! I didn't even see the operation symbols clearly.

Look at lions and tigers. Hey! Why don't you see lions and tigers? I only saw a lot of manuscripts. Before I left, I saw lions and tigers busy! It turns out that every time a lion does something, he has to take out the manuscript paper to calculate. The more manuscripts are piled up, the more lion heads are hidden. Really simple-minded, developed limbs. Tigers are more exaggerated. Every time I finish a question, I will take out my manuscript and check it. No wonder you are sweating.

Finally, let's look at the tortoise!

The tortoise is usually slow-tempered, but this time its thinking is not slow at all. See how wonderful this question is: 3456-999 = 3456-1000+1= 2457. The tortoise uses a simple algorithm to finish the test paper quickly, and it is right and fast!

Finally, the tortoise won the wisdom prize.

(4) The importance is 0.

0 is a mysterious number, as elusive as the mystery in the universe. 0 is also an important number. If you accidentally add an extra 0 or a less 0, the consequences are really unimaginable.

This math exam really made me realize the importance of 0. It was 99 points when the test paper was handed out! I made a mistake at once. The result made me dumbfounded. The result is 4500÷90. "How could I make a mistake with such a simple question?" I muttered to myself. I remember that when I dictated the 45,000-90 question, I easily wrote down 50, and I was still very confident. But in the end, I got 500, which was a 0. How wrong it is! What should not be wrong is also wrong. How important 0 must be!

If I become the financial general manager of the company in the future and someone else comes to withdraw money, I would have taken 10000 yuan, but I added 0- 100000 yuan more, and I still put 10000 yuan on the bill. Then who should I ask for this 90 thousand yuan? I will bear all the consequences!

4. What is the making method of desk calendar?

During the Spring Festival, many mothers have to prepare small gifts for their children. With the popularity of photos, children's desk calendars have become the first choice for mothers. Give friends and relatives a children's desk calendar, which is beautiful and exquisite. The most important thing is that the parents of the elderly like it.

Next, I will teach you to make a children's desk calendar. Design imposition: first of all, you need to know a little design knowledge. What is the software I choose here? Photoshop？ CS3 .

? Adobe? Company PS? Software? It is the favorite of Guangfa graphic designers. Although the operation is complicated, it can effectively improve the work efficiency when applied. First of all, what is our design size? 2 10* 145? Resolution 300? What is color mode? I won't say much about the design of RGB here. Design by size? Requirements: There is a bleeding of about 10MM at the top of the document. Don't put anything on it after the preparation work is completed because it is necessary to drill holes and fix rings? Now print the desk calendar. Pay attention to square alignment in printing process. Does the front of January correspond to the back of February? The front of February corresponds to the back of March, and so on. Choose a paper desk calendar, cut it, punch it after cutting, and set buttonholes for all desk calendars? You can clearly see that the pressing ring of the hollow part is completed. Finally, let's take a look at the production method of our desk calendar. The design of desk calendar is actually very difficult to operate in the simple production process. For example, the cutting may not be accurate, so the desk calendar will be uneven. Don't use too much force when fixing the desk calendar circle. If it is too hard, the desk calendar circle will not be so round. Must be evenly stressed, select the printing order and modify the printer. There are many professional tips.

5. math diary's experience and feeling of making an activity calendar in grade three.

1. Prepare A4 size white paper or colored cardboard. Cardboard is thicker than ordinary white paper, and calendars made of cardboard are more durable.

2. Draw a 7-vertical and 5-horizontal table with a ruler. Draw a form on 12 card, each piece of paper represents one month. [ 1]

Make sure that each cell has the same width and height, and don't bend any lines.

Draw a picture with a pencil first. When you adjust the size of each cell and draw the line straight, you can trace it again with a permanent marker.

3. Write down the month. Write the month on the top of each card-January, February, March, April, May, June, July, August, September, October, November and December. Write a bigger month with a watercolor pen, colored pencil or colored marker.

Please make sure that the month is written correctly.

4. Mark the day of the week. Write Monday to Friday on the first line of the form.

5 fill in the date. The date should be written in the upper right corner of each cell. First find out last year's calendar and see when the first day started. For example, if the last day of June 65438+February last year was Wednesday, then the first day of this year's 1 month is Thursday.

Make sure the number of days in each month is accurate, because there are different months in a year.

In order to make it easier for you to remember the number of days in each month, you can remember this formula: April, June, September and November have 3 1 day, except February, the remaining 30 days, 28 days in a normal year and 29 days in a leap year. [2]

6 Decorate the calendar. Every page of the calendar can be decorated according to your own wishes. Watercolor pens, colored pens, markers and crayons all go into battle; Stickers, sequins and glitter glue are not bad; Most importantly, use your imagination!

Mark important days. Mark all the important days on the calendar, such as birthday, Christmas, school day and so on. A more creative way is to find a picture related to this day and post it on the corresponding date.

8 calendars. Cut two holes at the top of each piece of cardboard, paying attention to the smooth edges of the holes. Find a long rope, twine or cotton thread, and put both ends into the hole so that you can hang it.

Hang the calendar on a hook or nail, whether you want to hang it in the bedroom, kitchen or classroom.

6. Little knowledge of mathematics

Look at Yang Hui Triangle!

Yang Hui Triangle is a triangular numerical table arranged by numbers, and its general form is as follows:

1

1 1

1 2 1

1 3 3 1

1 4 6 4 1

1 5 10 10 5 1

1 6 15 20 15 6 1

1 7 2 1 35 35 2 1 7 1

… … … … …

The most essential feature of Yang Hui Triangle is that its two hypotenuses are all composed of the number 1, and the other numbers are equal to the sum of the two numbers on its shoulders. In fact, ancient mathematicians in China were far ahead in many important mathematical fields. The history of ancient mathematics in China once had its own glorious chapter, and the discovery of Yang Hui's triangle was a wonderful one. Yang Hui was born in Hangzhou in the Northern Song Dynasty. In his book "Detailed Explanation of Algorithms in Nine Chapters" written by 126 1, he compiled a triangle table as shown above, which is called an "open root" diagram. And such triangles are often used in our Olympic Games. The simplest thing is to ask you to find a way. Now we are required to output such a table through programming.

References:

/olpcyanghui

7. Little knowledge of mathematics

1, as early as more than 2000 years ago, our ancestors used magnets to make an instrument to indicate the direction. This instrument is Sina.

2. German mathematician kravis was the first to use points as decimal points.

"Tangram" is a jigsaw puzzle in ancient China. It consists of seven thin plates, which can be put together into a big square. The patterns spelled out are varied, and later spread abroad, called Tang Tu.

It is said that as early as 4500 years ago, our ancestors used notch to measure time.

6. China is the first country to use the rounding method.

7. Euclid's most famous work, The Elements of Geometry, is the foundation of European mathematics. It put forward five postulates and developed them into Euclidean geometry, which is widely regarded as the most successful textbook in history.

8. Zu Chongzhi, a mathematician, astronomer and physicist in the Southern Dynasties, ranked the value of pi in the seventh place.

9. Rudolph, a Dutch mathematician, calculated the 35th place of pi.

10 Archimedes, known as the "father of mechanics", has many mathematical works handed down from generation to generation. Archimedes once said: Give me a fulcrum and I can move the earth. This sentence tells us that we should have the courage to find this fulcrum and use it to find the truth.

Extended data

Mathematics (Mathematics or maths, from the Greek word "Má thē ma"; Often abbreviated as "mathematics"), it is a discipline that studies concepts such as quantity, structure, change, space and information, and belongs to a formal science from a certain point of view.

In the development of human history and social life, mathematics also plays an irreplaceable role, and it is also an indispensable basic tool for studying and studying modern science and technology.