The world around us is everything that surrounds us.

This article presents material for class 3 students, the surrounding world for which is provided in the form of simplified models of the ecosystem. Also considered is the concept of a society of people, its structure and significance in the life of each person. On simple examples, there is a process of explaining the world around us. This is the main task of this material.

The notion of ecosystems

In order for a 3rd grade pupil to understand better what the planet Earth is, it is necessary to visually demonstrate the model of the globe. Our planet has an outer shell, which is called the atmosphere. All living organisms on Earth breathe atmospheric air. The atmosphere protects the Earth from overheating, from cosmic rays.

The earth has a water shell - it's a hydrosphere. The hydrosphere is formed by the underwater waters, rivers, seas, oceans of the globe.

The lithosphere forms the hard shell of the Earth. Land, mountains, and earth are referred to the lithosphere.

All living organisms living on Earth live in the biosphere. The biosphere is on the border of all the other three spheres.

All living organisms on Earth live in air, water and terrestrial environments. In order for the circulation of substances in nature not to cease, all living organisms can not do without each other. All organisms by function (or still can compare the functions of organisms with professions) are divided into producers, consumers and destroyers. Manufacturers are plants and trees, consumers are basically all animals, but bacteria, mushrooms and worms are considered destructive. Manufacturers, consumers and destroyers can not live on Earth without air, water, soil and rocks. Consequently, all of the above listed elements can be divided into two large groups: a living and inanimate nature. Thus, one can imagine the surrounding world - this is a living and inanimate nature.

Concept of society. Its structure

For a pupil of the third grade, to define the concept of society, one should cite as an example his own family, which (in the bulk) consists of members: father, mother, grandmother, grandfather, brothers, sisters. The family (a group of people) is the elementary or basic unit of society. All members of society interact with each other. Thus, also the society is the surrounding world. The whole society rests on four components. These components are the parliament, hospital, church, prison. The surrounding world is a certain structure that was formed back in ancient times, and its foundation is preserved to this day.

The concept of economics

Let us distinguish those things that are necessary for man for life. Such things are called needs. What can we relate to the needs of man? This is the need for food, rest, clothing, work, health, transport, security. This list can be continued for a long time. The needs of mankind are different in purpose and meaning.

Needs can be cognitive (theater, books, television), physiological (hunger, sleep), material (apartment, computer, car, dacha). Much gives us nature - it's the heat of the sun, air, water, the harvest of the land. And love, communication, friendship - this is all we get, communicating with each other. And all material goods - this is something that can not be in nature (at home, cars, clothes) - gives us an economy. In translation from the Greek language - "housekeeping". In this simple explanation for class 3 students, the world around us will look simple and understandable.

Conclusion

In conclusion, I would like to say that despite the scale and complexity, the surrounding world is a rather fragile structure, to appreciate, and most importantly, to protect it for future generations is the main task of adults in front of children. But at the same time at the stage of education the younger generation needs to form an appropriate system of values.