Main features and functions of globes

1, which correctly represents the position, direction and area of all continents, oceans, islands and countries on the earth;

2. Understand the shape of the earth and the concepts of axis, pole, polar circle, tropic of cancer, equator, latitude and longitude;

3, explain the revolution and rotation of the earth, day and night and four seasons, local time and standard time;

4. Calculate the geographical coordinates of any place marked on the globe, the area of a certain area, or the distance between any two places;

5. Measure the hours of day and night and the time of sunrise and sunset anywhere in a certain latitude;

6. Calculate the date and date of polar painting and polar night at any latitude in the polar circle;

7. Calculate the number of days and start and end dates of white nights anywhere in temperate high latitudes;

8, determine the date of the twenty-four solar terms;

9. Explain the reasons for the formation of the International international date line when calculating the local time and standard of each longitude;

10, determine the approximate number of solar declination on any day of the year;

1 1, do other geography teaching demonstrations.

Function:

Understand the reasons for the alternation of day and night and seasonal changes; Analyze the influence of earth movement on climate. Length in the shape direction; Understand the function of latitude and longitude net. Understand the positional relationship between seven continents, four oceans and latitude zones; Know the location of the six plates; Understand the topographical features of major topographic regions and major continents; Find the location of the date line.

Extended data:

Globes are classified according to their uses. There are several types of globes:

1, latitude and longitude grid globe, its spherical surface only has latitude and longitude grid and degree annotation, also known as theodolite;

2. Administrative globe, a globe with smooth spherical surface, representing administrative divisions;

3. Terrain globe is a model of terrain, and the spherical surface is divided into two types: plane and three-dimensional uplift;

4, a globe, the sphere only shows the distribution of continental plates and oceans, and is often used for decorative supplies;

5, teaching globe, used for school and family geography teaching;

6, craft gift globe, often used for home and office pendant decoration;

7. Large-scale display globes are often used for large-scale exhibitions, teaching observation demonstrations, etc.

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