If you have a topic, you can write it in the Olympiad Book.

Write your thoughts.

The following is for reference.

(1) What to write?

The key to writing a small paper is to choose a topic first. Everyone should start with what they are most familiar with and want to write.

Papers are classified by content, and there are probably the following:

① Be diligent in practice, apply what you have learned, establish a mathematical model for practical problems, and then use the model to analyze and predict the problems;

Probe into thermal expansion and cold contraction of bridges

(2) Put forward clever mathematical methods to solve common and annoying little things in life;

Such as: unexpected benefits created by drinking fountains

(3) Study the mathematical problem itself, explore the law, and get the general method to solve the problem.

For example, the study of kinship in the score "family"

Mathematics in paper airplane

④ Experience and reflection on a chapter or content of one's own mathematics study.

Such as "unconditional" reasoning

For example, a brief discussion on the "golden section"

For example, the wonderful positive five-pointed star

(2) How to write

(1) The topic should be small, focused and targeted;

② Views should be true, unique, emotional and innovative;

3 express what you want to express in your own language.

Two papers on mathematics

Mathematics on the basketball court

One Sunday morning, my friends and I went to play basketball.

After a while, we were tired of playing and went to the audience to have a rest. Suddenly I thought of a question and couldn't help but say it: "Xiaoming throws 8 balls a minute, Xiaohong throws 6 balls a minute. After they throw together for 8 minutes, Xiaohong improves the hit rate and throws 8 balls a minute. Xiao Ming only throws six balls a minute because of physical exhaustion. How many minutes later, Xiaohong and Xiaoming threw the same number? "

Probably because my friend is too tired to answer such a simple question. He thought for a while, but didn't come up with it. After a long time, he still didn't figure it out. As time went by, he really couldn't think of it, so he had to say shyly, "It can't be done without a draft." I know that even if he has a draft, he may not be able to do it.

I proudly said, "It turns out that Xiao Ming scored two more goals than Xiao Hong, and one scored eight minutes, which is 8×2= 16 (1). Later, Xiaohong scored four more goals than Xiaoming, so how many minutes does it take 16? " 16÷4=4 (minutes), it takes 4 minutes to catch up. "He said," You are amazing! " "I am a genius!" I joked. We all laughed.

Through this incident, I found that mathematics is everywhere in life, in life, study and work. Since then, I like math even more.

An easily overlooked answer

The world is full of wonders, and there are many interesting things in our mathematics kingdom. For example, in my ninth exercise book, there is a thinking question that reads: "A bus goes from Dongcheng to Xicheng at a speed of 45 kilometers per hour and stops after 2.5 hours. At this time, it is just 18 km away from the center of the east and west cities. How many kilometers is it between East and West? When Wang Xing and Xiaoying solve the above problems, their calculation methods and results are different. Wang Xing's mileage is less than Xiao Ying's, but xu teacher said that both of them were right. Why is this? Have you figured it out? You can also calculate the calculation results of both of them. " In fact, we can quickly work out a method for this problem, which is: 45× 2.5 = 1 12.5 (km),112.5+18 =130.5 (. In fact, we have neglected a very important condition here, that is, the word "Li" mentioned in the condition is "just 18 km from the center of the east and west cities", and it does not say whether it has not yet reached the midpoint or exceeded the midpoint. If the distance from the midpoint is less than 18km, the formula is the previous one; If it is greater than 18km, the formula should be 45× 2.5 = 1 12.5 (km), 1 12.5-65448. Therefore, the correct answer should be: 45 × 2.5 = 1 12.5 (km),12.5+18 =130.5 (km),/kloc-. Two answers, that is to say, Wang Xing's answer and Xiaoying's answer are comprehensive.

In daily study, there are often many math problems with multiple solutions, which are easily overlooked in practice or examination. This requires us to carefully examine the problem, awaken our own life experience, scrutinize it carefully, and fully and correctly understand the meaning of the problem. Otherwise, it is easy to ignore other answers and make a mistake of generalizing.

I hope I can help you. O(∩_∩)O haha ~