Mathematics and life. And it's elementary school math. Start with addition, subtraction, multiplication and division. How did the earliest addition and subtraction come from? There are many examples of ancient people tying a buckle, a buckle, a buckle and two buckles with ropes. Calculation is so helpful to life. When we go shopping, we have to use addition, subtraction and conversion. There are also conversions in primary school mathematics. Sometimes multiplication and division are also used. There are many things that are applied to life in elementary school application problems, such as pursuit. There are many problems such as lines, which are used to calculate time in life, and the original geometric triangle square is more helpful to draw the problems in life.

For example, after learning the calculation of rectangular and square areas and the calculation of combined graphics, you can use what you have learned to solve practical problems in life. For example, XXX has a two-bedroom apartment, as shown in the figure. Can you calculate the living area of these two-bedroom and one-bedroom rooms? To calculate the size of the area, which area should we measure first? Calculate after giving certain data; Students go home to measure the actual living area of their homes. In this practical calculation process, not only the interest is improved, but also the ability of practical measurement and calculation is cultivated, so that students can learn and use it in their lives.

Do you know many interesting proportions in our human body in The Meaning and Basic Nature of Proportion? The ratio of the length of the fist to the length of the sole is about 1: 1, and the ratio of the length of the sole to the height is about 1: 7 ... It is very useful to know these interesting ratios. If you buy socks in the store, just wrap them around your fist for a week and you will know whether they are suitable for you. If you are a detective, as long as you find the footprints of the criminal, you can estimate the height of the criminal ... these are all interesting proportions made up of body proportions.

Life is the center of education, and the theory of "life is education" has opened up a vast Yuan Ye for the reform of mathematics teaching in primary schools.