Secondary education and schools 2024, September

What is a proper fraction? Proper and improper fraction: rules

Even a primary school student can easily understand what a proper fraction is and how to perform mathematical operations with it. All you need is to master multiplication, division and consider a few life examples

Action with common fractions. Joint actions with ordinary and decimal fractions

In mathematics in grades 5-6, students get acquainted with fractions. This topic is often used in the future - both in mathematics and in other subjects. At the same time, a number of actions with ordinary fractions are easier to perform than with decimal ones, but the latter have their advantages

Sine, cosine, tangent: what is it? How to find sine, cosine and tangent?

Among the branches of mathematics, trigonometry usually causes the most questions for middle and high school students. Indeed, it is not easy to understand what sine, cosine, tangent are, never encountering them in everyday life. However, anyone can master this subject - you just have to start

The hardest mineral in nature

The hardest mineral in nature is unique due to the structure of the crystal lattice. And although the first mention of a diamond is jewelry, most of these stones are used in industry. Where are they used, and how is the demand for this mineral met?

Arshin is a measure of length. One arshin - how much is it?

Arshin is a measure of length used in Russia in the old days. An object for measuring length was also called an arshine. With this word, there are many stable expressions and sayings that have developed among the people. In order to understand them, as well as to imagine what dimensions are discussed in historical sources and literature, it is better to understand this issue in detail, consider from the standpoint of the system of measures adopted in the modern world

Eastern Siberia: climate, nature

Eastern Siberia is part of the Asian territory of the Russian Federation. It is located from the borders of the Pacific Ocean to the Yenisei River. This zone is characterized by an extremely harsh climate and poor fauna and flora

Ancient Russia is a state of Eastern Slavs

Rus is an ancient state of the Slavs. The article describes the creation and development of the Russian state. Prominent rulers and events are indicated

The people of Eurasia: their diversity and languages

The peoples of Eurasia make up almost three-quarters of the world's population. A large number of different ethnic groups live on the mainland, which differ in appearance, mentality, culture and language

Ancient world: where was China?

Ancient China is one of the great ancient civilizations. Where was China? Where are the roots of this power? What are its features? This is discussed in the article

Himalayas. Where is Nepal located?

Where is Nepal? What are the geographic features of Nepal? Which city is the capital of the state? The answers to these questions can be found in the text of the article

South America: geography, cities, features of the population of Peru

Peru is a land of legends and mysteries. What are the features of this country? What are the characteristics of the population of Peru? What is the name of the capital of this country? These issues are covered in the text of the article

The way to the Black Sea: which rivers flow

What rivers flow into the Black Sea? Which countries are Black Sea? These issues are covered in the article

In what natural area does the polar bear live and on what continents?

Polar bears are funny, cute animals, and at the same time dangerous predators. In what natural area does the polar bear live? What land does he live in? These issues are covered in the article

Foreign Asia: countries and capitals. List

What states does foreign Asia include. The countries and capitals of the largest part of the world will be listed in the article

Vitebsk, population: national composition and population

The population of Vitebsk is about 377,595 people, which allows the city to take the fourth place in terms of population in Belarus. The population census conducted in the Vitebsk region revealed a pattern that the number of indigenous people is thinning, but the number of foreign citizens who move to the city for permanent residence is increasing

Watershed is Types of watersheds. The Volga river basin is the largest in Europe

Watershed is a concept that is actively studied by the science of hydrology. What is the essence and significance of this concept for science? What types of watersheds are distinguished by scientists? The answers to these questions are in our article

The rainforest of India: features of the animal and plant world

On our planet there is a huge amount of various natural resources. This article will touch on the topic of the tropical forests of India. Why are they so remarkable and special, what flora and fauna fills them?

Andes: absolute height and coordinates of the highest point. Detailed information about the mountains

The absolute height and coordinates of the highest point are indicated to the nearest meter and minute: the peak lies at 6962 meters above sea level and is located at 32°39′ S. sh. 70°00′ W d

Oceans and continents, their names, location on the map

The surface of the Earth has an extremely uneven relief. Deep depressions are filled with water, the rest of the planet is represented by land. All this together - oceans and continents. They differ in size, climate, shape, geographic location

Should we be afraid of the wrath of a patient person?

What other emotion can be compared to anger? It captures the whole being and it takes a fraction of a second for emotions to splash out. And if a person is patient and knows how to hide his feelings well?

Mediterranean salinity in ppm and percentage

Sea water, billions of years ago, having dissolved a lot of chemical compounds, transformed into a solution containing many unique microcomponents. One of the main characteristics of sea water is its salinity. The Mediterranean Sea is the s altiest on the planet after the Red Sea

Cities of Australia: large industrial, cultural and resort centers

In this article I would like to take a closer look at the cities of Australia - major centers of industry, culture, sports and, of course, resort areas. This is Sydney, Perth, Adelaide, Melbourne, Canberra

Australia (country). Discovery of Australia. Australia map. Australia symbol

Australia is a country that we read about with rapture in childhood, and when we grow up, we try to find any possible - both conceivable and completely unbelievable - ways to visit this land at least once in a lifetime. Only here you can meet unprecedented animals, stand by funny trees, swim in the sea, watching the bustle of rainbow coral fish

Readable is enjoyable to read

It is impossible to constantly perceive information in video or sound format. Contemporaries still express most of their thoughts in the text, describing in detail their own experiences or objective facts. Therefore, it is important that the material remains readable. What is the essence of the characteristic? Read the article

The initial is the first letter

Do you often work with papers or certify documents with a personal signature? Then you know about the initials. But how many more meanings are hidden in such a public, everyday concept? Read the article to learn more about the usefulness of capital letters in historical texts

"Sitny friend" - what does it mean? Versions of the origin of phraseology

Often in colloquial speech and in literature you can find the expression "friend of the earth." What does it mean? Not everyone understands the meaning of this phrase. This is due to the adjective included in it. On the one hand, it has several shades of interpretation, and on the other hand, in the phraseological unit under consideration, it is used in a figurative sense. What it means - "friend of the sieve" will be discussed in the article

What does "fatal" mean? The meaning of the word, synonyms, phraseological units

What does fatal mean? This word is associated with rock, but not with the musical genre, but with the fact that in a poetic sense it means fate, usually evil, unhappy. Details about what fatal means will be discussed in the article

History of the origin of the name Andreev

Considering the question of the history of the origin of the surname Andreev, it should be noted that it is one of the most common in our country. In the list of all-Russian generic names, it occupies the thirtieth place among the hundred most common ones. This is most likely due to the fact that it comes from a well-known Christian name. More details about the meaning, origin of the surname Andreev and its spelling will be described in the article

Is grace always a virtue?

This term means not only the ability to attract, attract, enchant the beauty visible to the eye. A truly beautiful person does not need a body close to the canonical Apollo or Venus. The triumph of external harmony, impossible without internal harmony - that's what grace is. This is a quality that manifests itself as sophistication, grace and beauty. It is inherent in someone who (or something) is refined, proportionate, not devoid of artistic taste

Uninhibited is that? Word interpretation

What does the word "uninhibited" mean? In this article, we will answer this question. We will also give examples of the use of the word "uninhibited" in sentences. We indicate the synonyms that are suitable in meaning. Additionally, here are some tips to help you become relaxed and self-confident people

Rainy - what is it? Interpretation, selection of a test word

Don't you know what the word "rainy" means and how it should be spelled? In this case, it is recommended to read this article. It details what interpretation it is endowed with, what kind of test word to choose for "rainy" - a complex adjective that is often written incorrectly

Pockmarked is heterogeneous, motley

The tale of an amazing bird that laid golden eggs is known to many Russian-speaking citizens. And it was a hen-ryaba. But what exactly does capacious characteristic mean? In what cases can you call an interlocutor or even a natural object pockmarked? Read the article

Who is an Ethiopian? Ethiopian population

Who is an Ethiopian? The answer to this question will be as follows. It's about an Ethiopian. However, this word has several meanings, one of which refers to the times of ancient Greece. Who the Ethiopian is will be described in more detail in the proposed essay

Riddles with double meanings? Two doubles please

There are certain words and whole phrases that have more than one meaning. The first one comes to mind immediately. But in order to discover the hidden one, you need to read carefully, listen and, as they say, "brain out". Some clever questions are built on this, they are called: riddles with double meaning

How to draw up an act of visiting a student's family? Completed Sample

It is important not only for teachers, but also for parents to understand how an act of visiting a student's family is drawn up. The completed sample will be presented in the article, as well as comments on how and under what circumstances a home examination is carried out, by whom it is certified and what rights the legal representatives of a minor have

What is lunch? Lexical meaning of the word

What is lunch? Most likely, everyone is familiar with this word. Why might it be interesting to consider? The fact is that this lexeme, with all the similarities associated with eating, has several shades of interpretation. About what lunch is in various interpretations, as well as about the synonyms and etymology of this word, will be discussed in the article

Brain free? This is sophistication! Considering the meaning of the word "refined"

The brain is soaked (water must be cold). Then it is cleaned from the protective film. Now the convolutions are boiled with spices and vinegar. Further, having drained, s alt and pepper. After rolling in flour and frying, a culinary delight is obtained - brain fries! Do you feel like your own have already boiled? Then you should be a little distracted and take up mental food. For example, to study what a sophistication is. At least so that the brains are not completely free

"Kill" is to torment, torment

There are more and more people on the planet, the level of socialization is growing every second. It is impossible to hide anywhere from relatives, friends and colleagues: with the help of the Internet and smartphones, spam messages, pictures, links to videos can reach a person everywhere. Oddly enough, for such a situation, the Russian people have long come up with a capacious definition of "finish"

Related words to the word "snow", selection of synonyms

What related words can be found for the word "snow"? How do related words differ from cognate words? What are the synonyms for the word "snow"? In the article you will find answers to all these questions. We will indicate cognates, as well as synonyms for the noun "snow"

Curtina - what is it? The meaning of the word and its origin

Curtina is a French word, the meaning of which is not clear to everyone. Moreover, it has not one, but several interpretations and is used in various areas of life. For example, in architecture, gardening and forestry. For more information about what it is - a curtain, read this article