"Mathematics comes from life and also serves life." The following are some of my personal experiences, all of which prove that this is a truth.

Once, my mother and I went shopping in the supermarket. My mother said, "We have to use up these shopping vouchers in a planned way, so every time we buy something, we have to calculate how much we spend." 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 began to count: If I buy 65,438+00 retail pieces, each piece costs 4 cents, and * * * is 4 yuan, while the whole package costs 4.30 yuan, which is 3 cents more, so I decided to buy bulk. I told my mother about my calculation process, and my mother praised me for using my brain, so I became my mother's "little accountant".

There are many plane graphics and three-dimensional graphics in our life. My desktop is square, the surface of the clock is square, the surface of my bed is rectangular, and the surface of the door is rectangular. The triangle we use is a triangle ... the refrigerator is a cuboid, the toothpaste box is a cuboid, and the outer box of my computer is a cube ... Now I have learned to calculate the area of various plane figures, and I have also learned to calculate the surface area and volume of cuboids and cubes. I can also use it flexibly to solve our lives.

For example, last week, my mother took us to a swimming pool in Zhengzhou. My mother said, "Xiaoyu, you are in the fifth grade now. Look at the swimming pool in front of us. Do you know the area of the tiles in this pool and how much water can you hold? " I proudly said, "Of course there is no problem. In fact, to calculate its surface area and volume, we need to know their length, width and height. First of all, let me solve the first problem, that is, to find its surface area. We should pay special attention to one problem: this swimming pool has no roof, that is, the total area of five faces is required, that is, length × width+(length × height+width × height) ×2, which is the surface area of this swimming pool, and finally the area unit is used; The second problem is to find its volume by its length × width × height, but pay attention to the unit of the final volume. " I spoke with relish, as if it were a bit like our teacher's taste, and I was even more proud when I thought about it. My parents standing by praised me for speaking well, not to mention how happy I was.

Students, mathematics is mysterious and flexible. Besides what I just mentioned, there are many kinds of mathematics in life! So learning mathematics should be applied in real life. Mathematics is used by people to solve practical problems. In fact, there will be math problems in life. 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.

So, is mathematics important? So, I want to remind you that you must learn math well!