Mathematics and Life essay activity, the requirement is a research report, suitable for word documen

Learning mathematics is to be able to apply it in real life, mathematics is used by people to solve practical problems, in fact, mathematical problems arise in life. For example, when you go to the street to buy things, you naturally need to use addition and subtraction, and you always have to draw drawings to build a house. There are countless problems like this, and these knowledge are generated from life, and finally people are summarized into mathematical knowledge, which solves more practical problems.

I once saw a report in which a professor asked a group of foreign students, "How many times do the minute and hour hands coincide between 12 and 1 o'clock?"

The students all took their watches off their wrists and began to dial the hands; When the professor told the Chinese students about the same problem, the students would apply mathematical formulas to calculate it. According to the commentary, it can be seen that Chinese students' mathematical knowledge is transferred from books to their brains, and they cannot use it flexibly, and they rarely think of learning and mastering mathematical knowledge in real life.

Since then, I have consciously connected mathematics to everyday life. Once, my mother made cakes, and I could put two cakes in the pot. I thought, isn't this a math problem?

It takes two minutes to bake a cake, one minute each for the front and back sides, and a maximum of two cakes in the pot at the same time, so how many minutes does it take to bake three cakes at most? I thought about it and came to the conclusion: it will take 3 minutes:

Let's put the first one. 1. Put the second cake into the pot at the same time, after 1 minute, take out the second cake, put in the third cake, and turn the first cake over; Bake for another 1 minute, so that the first piece of cake is good, take it out. Then put the reverse side of the second cake and turn the third cake over at the same time, so that it is all done in 3 minutes.

I told my mom about the idea, and she said that it wouldn't be that coincidental, there had to be some error, but the algorithm was correct. It seems that we must apply what we have learned in order to make mathematics better serve our lives.

Mathematics should be learned in life. Some people say that the knowledge in books has little to do with reality. This shows that their ability to transfer knowledge has not been fully exercised.

It is precisely because of the inability to understand and apply it in daily life that many people do not pay attention to mathematics. I hope that students will learn mathematics in life, use mathematics in life, mathematics is inseparable from life, learn deeply, learn thoroughly, and naturally find that mathematics is actually very useful.

Regarding "0" and 0, it can be said that it is the earliest number that human beings have come into contact with. Our ancestors began to only know that there is no and there is, and that there is no in it is 0, so is 0 not? I remember my teacher in elementary school saying that "any number minus itself is equal to 0, and 0 means that there is no quantity."

"Clearly" is clearly incorrect. We all know that 0 degrees Celsius on a thermometer represents the freezing point of water (i.e., the temperature of the ice-water mixture at a standard atmosphere), where 0 is the point at which water is solid and liquid. And in Chinese characters, 0 as a zero means more, such as:

1) Fragmentation; Small amounts. 2) The quantity ...... is not enough for a certain unitAt this point, we know that "no quantity is 0, but 0 not only means no quantity, but also indicates the point of distinction between solid and liquid water, and so on." ”

Any number divided by 0 is meaningless. This is a "definitive conclusion" about 0 that teachers still talk about from elementary school to middle school, and division (in elementary school) at that time was to divide a part into several parts and find how many copies there are. A whole cannot be divided into 0 parts, i.e. "meaningless".

Later, I learned that the 0 in a 0 can represent a variable with zero as the limit (the absolute value of a variable in the process of change is always less than the definite positive number of any small loss) and should be equal to infinity (the absolute value of a variable in the process of change is always greater than the definite positive number of any large number in the process of change). From this, another theorem about 0 is obtained: "A variable with zero as the limit is called infinitesimal". Unprecedented.

room, 2003", although there are 0 appears, the rough "look" is almost the same; But they have different meanings from each other The vacancy of the 0 index in the year cannot be deleted. The 0 in room 203 is the one separating "building (2)" from "door number (3)" (i.e., room 8 on the second floor), which can be deleted. 0 also means ......

Albert Einstein once said, "To ask for the meaning and purpose of the existence of a person or all living beings, from a macro point of view, I have always thought it is absurd." "I want to study all the numbers that "exist", so it is better to understand the number of 0 that "does not exist", so as not to become the "absurd" person that Einstein said.

As a middle school student, my ability is limited after all, and my understanding of 0 is not thorough enough, and I hope to discover "my new continent" in the "ocean of knowledge" in the future (including action).