A 200-word mathematical model essay
One day, the weather was particularly sunny, and I helped my mother do housework. Hang the curtains first. I'll hold my mother in case she falls. Then, we cleaned the glass again, and my mother stood on the fork ladder. I also went to help, standing on the fork ladder to help my mother clean the glass. My mother said, the fork ladder can't stand it, come down quickly! ? I said:? I can bear it. You weigh 60 kg, and I weigh 4 1 kg, making a total of 10 1 kg. The load of the fork ladder150kg,10/kg is less than150kg, I can go up. ? Mom said approvingly, it seems that you are really good at math! ? My heart is as sweet as honey after listening to my mother's words. I continued to clean the glass, and soon it was clean. It looked like nothing. People feel really comfortable!
I must study math well, because math is really useful!
A 200-word mathematical model essay
In life, mathematics is everywhere. For example: buy food! Buy stationery! Measuring cloth, etc. , all need to use mathematics.
This semester, the teacher taught a new knowledge, that is, the multiplication and division of decimals. This knowledge helps me a lot! Last night, my mother went to buy oranges together. A kilo of oranges 1.8 yuan. My mother bought 4.5 kg and should pay 8. 1 yuan. But the clerk was careless and didn't know how to calculate it, so it became 9 yuan money. Fortunately, this semester, I used the knowledge of Protestantism, and after doing a calculation in my mind, I immediately corrected the salesman's mistake.
Not only did my aunt, the shop assistant, praise me for my cleverness and my ability to multiply and divide decimals in such a small city, but my mother also praised me for saving her 0.9 yuan on the way home, and the knowledge I learned can be applied in my life.
Yes! If you don't learn this math well, it's not only 0.9 yuan that will lose, but also hundreds, thousands or even hundreds of millions!
200-word mathematical model essay
When I'm free at night, I always read math extracurricular books after I finish my homework. I read a problem in the book today: the number of apple trees in the orchard is three times that of pear trees. Master Lao Wang fertilizes 50 apple trees and 20 pear trees every day. A few days later, all the pear trees were fertilized, but 80 apple trees were still unfertilized. Excuse me: How many apple trees and pear trees are there in the orchard?
I am not intimidated by this question, but it can stimulate my interest. I think the apple tree is three times as big as the pear tree. If you want to fertilize two kinds of trees on the same day, does Master Lao Wang have to fertilize them every day? 20? 3? Fertilize 20 apple trees and 20 pear trees. In fact, he only fertilizes 50 apple trees every day, which is 10, and the last 80 trees. Therefore, Master Lao Wang has been fertilizing for 8 days. 20 pear trees a day, 8 days is 160 pear trees. According to the first condition, there are 480 apple trees. This is to solve the problem with the idea of hypothesis, so I think the hypothesis method is really a good way to solve the problem.
A 200-word mathematical model essay
I am a lively and cheerful boy. I like abstruse mathematics. Mathematics has an attraction for me. As long as I see a math problem, I will concentrate on it without making a sound, as if I have come to this profound math kingdom. Some students say that mathematics is profound. I think it's because there are olympiad numbers in mathematics. Indeed, if you don't know anything about the Olympiad, you will be confused and think that mathematics is not fun at all; Of course, if you are interested in olympiad, you will have a belief that you must do it well and finish it in the process of calculation. That's how I overcame one Olympic math problem after another, and I got a sense of intimacy in mathematics.
I still remember that I participated in the Olympic Mathematical Contest in Grade One and Grade Two. In the competition, in the face of those Olympic math problems that I didn't do, although I was sweating, I still devoted myself to them as always. With my efforts, I won the third place every time, and my heart was as sweet as honey. But I still hope that one day I can win the first place in the competition.
I can't live without the Olympics. It is like my partner, and I will be in close contact with it for a period of time every day. Up to now, I have done all kinds of Olympic math problems, my ideas are getting wider and wider, and my interest in mathematics is getting stronger and stronger.
I want to be a mathematician when I grow up. This is the boy who loves math deeply.