1. The date of Mid-Autumn Festival is calculated according to the lunar calendar, usually on August 15th. At this time, the moon is called "full moon", which is an important moment for the phase change of the moon. The cycle of moon phase change is about 29 days. During this period, the moon will experience a series of different phases, from the new moon (phase 0) to the first quarter moon (phase 90), to the full moon (phase 180), and finally back to the new moon phase 360.
2. Pi is a mathematical constant, which is used to describe the proportional relationship between the circumference and diameter of a circle or sphere. In the process of making moon cakes, you need to use a circular mold, and the size and shape of the mold need to use pi. Pi can be calculated and is widely used in making moon cakes and similar food processing.
When enjoying the moon in Mid-Autumn Festival, people usually notice the beautiful and symmetrical shape of the moon. The full moon is a nearly perfect circle, which has the characteristics of left-right symmetry and up-down symmetry. In the cultural tradition of Mid-Autumn Festival, there are some customs related to symmetry. For example, people traditionally think that square moon cakes are more symmetrical than rectangular moon cakes, because square moon cakes can better reflect symmetry visually.
Proportion is a way to express the relationship between two or more quantities in mathematics. In the Mid-Autumn Festival, the concept of proportion has also been well reflected. For example, when making moon cakes, the proportional relationship between the crust and the filling will affect the taste and taste of moon cakes. Through reasonable proportion distribution, the taste of moon cakes can be more delicious and rich.
5. Estimation is a rough calculation or estimation without complete accuracy. In Mid-Autumn Festival, estimation technology is also widely used. For example, when we make moon cakes, we usually estimate the amount of flour, sugar, oil and other materials needed in advance, so as to arrange the proportion and amount of materials reasonably in the production process. Through estimation, we can better grasp the rhythm of production process and the quality of finished products, and avoid wasting materials or making products that do not meet expectations.
Application of Mathematical Knowledge in Life
1, measurement and unit are the basic units of measurement in mathematics, and they are also common knowledge in daily life and work. Length, weight, time and temperature are all commonly used measures and units in our lives. In daily life, we often need to deal with all kinds of data. Knowledge of geometry and space helps us to understand and solve problems related to shape, size and position in daily life.
2. Algebraic knowledge mainly involves mathematical concepts such as variables, equations and inequalities, and logic is a way of reasoning. Algebra knowledge is very useful in solving some problems involving variables, such as solving some economic problems and physical problems. Logic can help us clear our minds, make accurate judgments and make correct decisions.