The story of using mathematical knowledge in life Quality and quantity

The story of using mathematical knowledge in life Quality and quantity

1. Measure the width of the river with Pythagorean theorem
2. Measure the height of the building with shadow length, X: X
3. Calculate the distance, time and speed of the car with distance = time x speed
4. Measure how far the light source is from you with the speed of light and time
5. It's necessary to settle the account when you go shopping, otherwise you will charge more
6. Give RT triangle two sides, find the third side

What is the common sense of mathematics in life

Many, such as: the room has length, width, height, square, rectangle, surface area, three-dimensional graphics, spherical; clocks (degrees, time); useful money (add, subtract, multiply, divide); and so on, mathematics is most widely used in life, all the time. More careful observation, you will find that life is very beautiful, knowledge is too rich, as long as you observe

In winter vacation, observe life and find some life things related to mathematics knowledge (please give 3-5 examples)

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