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.
Mathematics comes from life, and there is mathematics everywhere in life. When teaching, we should be good at digging up the mathematical materials in life, making mathematics close to life, making students feel the practicality of mathematics and having a sense of intimacy with mathematics.
Application of extended mathematics in data life;
1. Find the area: For example, lay a carpet on the surface of a staircase with a height of 4 m and a length of 6 m, and find the area of the carpet.
Many students have carpets on the stairs at home, so it is necessary to calculate the length of the carpet. As can be seen from the picture, it is simple and convenient to answer with the knowledge of translation. Moving the horizontal line downward in the stair step can form AC, and moving the vertical line to the left can form BC, so that the carpet length is 4+6= 10 m and the area is 2× 10=20 square meters.
2. Finding Probability: Probability is a subject closely related to real life, but most people have a very common understanding of this subject: when throwing a coin, the probability of 0.5 is heads up, and the probability of 0.5 is tails up. This is probability.
Step 3 count your fingers
Ten fingers of human beings are natural "counters". Primitive people did not wear shoes and socks, and with ten toes, the range of counting was wider. Up to now, some ethnic groups still use "hands" to represent "five" and "people" to represent "twenty". It is speculated that "decimal" is widely used, which is probably related to finger counting.
References:
Baidu encyclopedia-application questions
References:
Baidu encyclopedia-mathematics