Learning mathematics should be used in real life. Mathematics is used by people to solve practical problems. In fact, there will be math problems in life. For example, when you go shopping, you will naturally use addition and subtraction, and you always have to draw pictures when you build a house. There are countless problems like this, and this knowledge comes from life and is finally summed up as mathematical knowledge, which solves more practical problems.

I once saw a report that a professor asked a group of foreign students, "How many times will the minute hand and the hour hand overlap between 12 and 1?" Those students all took off their watches from their wrists and began to set hands; When the professor tells the same question to the students in China, the students will use mathematical formulas to make calculations. The commentary said that it can be seen that China students' mathematical knowledge is transferred from books to their brains, so they can't use it flexibly. They seldom think of learning and mastering mathematics knowledge in real life.

From then on, I began to consciously connect mathematics with daily life. Once, my mother baked a cake, and two cakes could be put in the pot. I thought, isn't this a math problem? It takes two minutes to bake a cake, one minute in front and one minute in the back. At most, two cakes are put in the pot at the same time. How many minutes does it take to bake three cakes at most? I thought about it and came to the conclusion that it takes 3 minutes: first, put the first cake and the second cake into the pot at the same time, 1 minute later, take out the second cake, put the third cake and turn the first cake over; Bake again 1 min, so that the first cake is ready. Take it out. Then put the reverse side of the second cake on it, and turn the third cake upside down at the same time, so it will be all done in 3 minutes.

I told my mother about this idea, and she said, actually, it won't be so coincidental. There must be an error, but the algorithm is correct. It seems that we must apply what we have learned in order to make mathematics serve our lives better.

Mathematics should be studied in life. Some people say that the knowledge in books has little to do with reality now. This shows that their knowledge transfer ability has not been fully exercised. It is precisely because they can't understand it well and apply it to daily life that many people don't attach importance to mathematics. I hope that students can learn mathematics in their lives and use mathematics in their lives. Mathematics is inseparable from life. If they study thoroughly, they will naturally find that mathematics is actually very useful.

The second article

Mathematics is a very useful subject. As early as ancient times, primitive people have been "dabbling in counting" and "knotting notes" Nowadays, mathematical knowledge and ideas are widely used in industrial and agricultural production and people's daily life. For example, after shopping, people should keep an account for year-end statistical inquiry; Go to the bank to handle savings business; Check the water and electricity costs of each household, which makes use of the knowledge of arithmetic and statistics. In addition, the "push-pull automatic telescopic door" at the entrance of the community and government compound; Smooth connection between straight runway and curve in sports field; Calculation of the height of the building whose bottom cannot be closed: determination of the starting point of two-way operation of the tunnel; The design of folding fan and golden section is the property of straight line in plane geometry, and it is about the application of solving Rt triangle knowledge. So our research topic is the application of mathematics in life. I hope that through this little study, I can improve my math ability and consciously use math knowledge in my life.

Combine junior high school knowledge: function, inequality, sequence and so on. The knowledge of functions in algebra is closely related to production practice and life practice, and functions are widely used in our daily life. When people engage in business, especially social consumption activities, such as shopping, renting a car and staying in hotels, operators will provide us with two or more payment schemes or preferential measures for publicity, promotion or other purposes. At this time, we should think twice, dig deep into the mathematical knowledge in our heads and make wise choices. As the saying goes: "From Nanjing to Beijing, it is better to buy than to sell." Never follow blindly, lest you fall into the small trap set by the merchants and suffer immediate losses. Shopping with my family these days, merchants take various preferential measures. I use my own mathematical function to understand and calculate carefully. I went shopping in the "Good Day" supermarket, and an eye-catching brand attracted me. It says that you can get a discount on buying teapots and teacups, which seems to be rare. What is even more strange is that there are actually two preferential ways: (1) sell one for one (that is, buy a teapot and get a cup); (2) Get a 10% discount (that is, pay 90% of the total purchase price). There is also a prerequisite: buy more than three teapots (teapot 20 yuan/one, teacup 5 yuan/one). From this, I can't help thinking: Is there a difference between these two preferential measures? Which is cheaper? I naturally thought of the functional relationship, and I decided to apply the functional knowledge I learned to solve this problem, that is, to exercise my mathematical mind, distract my thinking, save money and put an end to waste. I really kill two birds with one stone! Another example is the problem of "forest greening". In forest greening, trees must be planted at equal distance on the hillside, and the distance between two trees on the hillside should be consistent with the distance between trees on the flat ground when projected on the flat ground. Therefore, foresters should calculate the distance between two trees on the hillside before planting trees. This requires knowledge of mathematics. "

As middle school students, we should not only learn mathematics knowledge, but also use it to analyze and solve problems in life, so as to better adapt to the development and needs of society. However, there are some shortcomings in this study. First of all, it is not convenient for everyone to contact during the winter vacation, and it is difficult to get help from the tutor. We believe that the mathematics knowledge learned in junior high school is limited after all. If we can learn some applied knowledge of mathematics studied in universities under the guidance of mathematics teachers, we can better broaden our knowledge and deepen our understanding. Secondly, our life has little to do with financial management. If we can combine the economic problems in the use of school meal cards with statistical knowledge, investigate students' consumption level and some measures and means to save consumption, then mathematical knowledge will really be of great help.