Presentation on the topic: "Some interesting facts in mathematics .... Did you know? Did you know that fish can count up to four? This interesting mathematical fact was confirmed.". Download for free and without registration. Video presentation "Do you know?"

  • 27.04.2020

Do you know? Did you know that fish can count to four? This interesting mathematical fact was confirmed by Italian scientists. Cristian Agrillo of the University of Padua, who participated in the experiment, said: "We have received evidence that fish are endowed with rudimentary mathematical abilities." Previously it was known that fish could tell the difference between large and small schools of fish, but this experience showed that fish can count how many fish are swimming around them. Monkeys, dolphins, and some people with disabilities have similar mathematical abilities. Did you know that fish can count to four? This interesting mathematical fact was confirmed by Italian scientists. Cristian Agrillo of the University of Padua, who participated in the experiment, said: "We have received evidence that fish are endowed with rudimentary mathematical abilities." Previously it was known that fish could tell the difference between large and small schools of fish, but this experience showed that fish can count how many fish are swimming around them. Monkeys, dolphins, and some people with disabilities have similar mathematical abilities.


Data Interesting Facts about mathematics are based on observations of female freshwater gambusia fish, which showed that when a male begins to hunt for a female, she tries to hide from him in the nearest largest school of fish. At the same time, choosing between groups of two, three or four fish, she is able to count the number of individuals and cling to the largest group. In addition, fish can visually distinguish larger numbers if their ratio is 2:1. The researchers obtained these data during the second series of experiments. So, for example, the female will see the difference between groups of 16 and 8 fish, but will not be able to distinguish between schools of 12 and 8 fish, since the ratio in this case is 3:2. These interesting facts about mathematics are based on observations of female freshwater gambusia fish, which showed that when a male begins to hunt for a female, she tries to hide from him in the nearest largest school of fish. At the same time, choosing between groups of two, three or four fish, she is able to count the number of individuals and cling to the largest group. In addition, fish can visually distinguish larger numbers if their ratio is 2:1. The researchers obtained these data during the second series of experiments. So, for example, the female will see the difference between groups of 16 and 8 fish, but will not be able to distinguish between schools of 12 and 8 fish, since the ratio in this case is 3:2.


This is interesting... What is the sign instead of a plus do students in Israeli schools use? What is the plus sign used by students in Israeli schools? Religious Jews try to avoid Christian symbols and generally signs that look like a cross. For example, students in some Israeli schools instead of the plus sign write a sign that repeats the inverted letter "t".


What mathematical law is revealed in the two policemen theorem? What mathematical law is revealed in the two policemen theorem? Some mathematical laws are named by analogy with situations in real life. For example, the theorem about the existence of a limit for a function that is “sandwiched” between two other functions that have the same limit is called the two policeman theorem. This is explained by the fact that if two policemen keep a criminal between themselves and at the same time go to the cell, then the prisoner is also forced to go there. Some mathematical laws are called by analogy with situations in real life. For example, the theorem about the existence of a limit for a function that is “sandwiched” between two other functions that have the same limit is called the two policeman theorem. This is explained by the fact that if two policemen keep a criminal between themselves and at the same time go to the cell, then the prisoner is also forced to go there.


When is Pi Day celebrated? When is Pi Day celebrated? Pi has two unofficial holidays. The first is March 14, because this day in America is written as Second July 22, which in European format is written 22/7, and the value of such a fraction is a fairly popular approximate value of pi. Pi has two unofficial holidays. The first is March 14, because this day in America is written as Second July 22, which in European format is written 22/7, and the value of such a fraction is a fairly popular approximate value of pi.


Which mathematician comprehended the basics of science from the wallpaper in the room? Which mathematician comprehended the basics of science from the wallpaper in the room? Sofya Kovalevskaya got acquainted with mathematics in her early childhood, when there was not enough wallpaper for her room, instead of which sheets with Ostrogradsky's lectures on differential and integral calculus were pasted. Sofya Kovalevskaya got acquainted with mathematics in her early childhood, when there was not enough wallpaper for her room, instead of which sheets with Ostrogradsky's lectures on differential and integral calculus were pasted.


What insects are able to talk, count and perform simple arithmetic operations? What insects are able to talk, count and perform simple arithmetic operations? Ants are able to explain to each other the way to food, they can count and perform simple arithmetic operations. For example, when a scout ant finds food in a specially designed maze, it returns and explains how to get to it to other ants. If at this time the labyrinth is replaced with a similar one, that is, the pheromone trail is removed, the scout's relatives will still find food. In another experiment, the scout searches in a maze of many identical branches, and after his explanations, other insects immediately run to the designated branch. And if you first accustom the scout to the fact that food is more likely to be in 10, 20, and so on branches, the ants take them as basic and begin to navigate by adding or subtracting the desired number from them, that is, they use a system similar to Roman numerals.


What mathematical sequence describes the arrangement of leaves on plant branches? What mathematical sequence describes the arrangement of leaves on plant branches? Leaves on a plant branch are always located in strict order, separated from each other by a certain angle clockwise or counterclockwise. The value of the angle is different for different plants, but it can always be described by a fraction, in the numerator and denominator of which there are numbers from the Fibonacci series. For example, for beech, this angle is 1/3, or 120 °, for oak and apricot 2/5, for pear and poplar 3/8, for willow and almond 5/13, etc. This arrangement allows the leaves to most effectively receive moisture and sunlight.


What classic computer science problem can bees solve more efficiently than supercomputers? What classic computer science problem can bees solve more efficiently than supercomputers? Laboratory research showed that bees are able to choose the best route. After localizing the flowers placed in different places, the bee makes a flight and returns in such a way that the final path is the shortest. Thus, these insects effectively cope with the classic “traveling salesman problem” from computer science, which powerful supercomputers can spend more than one day solving.


What circumstances led mathematician Alexander Volkov to become a writer? What circumstances led mathematician Alexander Volkov to become a writer? The fairy tale "The Wise Man of Oz" by the American writer Frank Baum was not published in Russian until 1991. In the late 30s, Alexander Volkov, who was a mathematician by training and taught this science at one of the Moscow institutes, began to study English language and for practice I decided to translate this book in order to retell it to my children. Those liked it very much, they began to demand continuation, and Volkov, in addition to translating, began to invent something from himself. This was the beginning of his literary path, which resulted in The Wizard of the Emerald City and many other fairy tales about the Magic Land.


How are chess, rice and ruin related? How are chess, rice and ruin related? There are many parables about how one person offers another to pay him for some service as follows: he will put one grain of rice on the first cell of the chessboard, two on the second, and so on: each next cell is twice as much as the previous one. As a result, he who pays in this way is bound to be ruined. This is not surprising: it is estimated that total weight rice will be more than 460 billion tons.

"Anthropogenic impact on the biosphere" - Contents. Completed by: Sergey Gubchenko, a student of grade 11a, Secondary School No. 31, Novocherkassk. Three shells of the biosphere. Results of impact on the hydrosphere. The results of the impact on the atmosphere. Anthropogenic pollution of the biosphere and protection environment. Anthropogenic impact on humans. Anthropogenic impact on the biosphere.

"Human impact on the biosphere" - Municipal educational institution"Gymnasium" in Borovichi, Novgorod region. By the end of the second millennium, humanity entered the world of the most complex interdependencies, which, in terms of scale and degree of danger, have no analogues in history. TOPIC: "Influence of human activity on the biosphere".

"Influence of ecology on a person" - Conducting experiments. Develop a route for a trip to reservoirs, ponds, meadows of the OPH "Lenin's spark. At the preparatory stage, you can use the proposed literature. Problematic questions: Why do you need to know the impact of weather conditions on a person's well-being? In the course of work, a booklet, a presentation can be used as illustrative examples.

"Land and People" - Indicate the positive and negative consequences of development Agriculture and industry in the table. Causes of ozone destruction. Solving environmental problems. Recently, something similar to glass is happening on our Earth. How a person fought pests using the knowledge of science. Anthropogenic source caused by the burning of forests, factories.

“Human environment” - Completed by: 10th grade student of the Studenovskaya secondary school Skorokhod Denis. Environment. Protection of Nature. Protection of Nature - the most important task humanity. Environmental pollution. Content. Ecology…

"Fundamentals of rational nature management" - Ecological. Plan for studying the topic. Wind, tides, flowing water. Measures for the protection of the environment and careful use natural resources Russia. General (does not require special permission). ABC folk wisdom. It is carried out on the basis of the permission of authorized government agencies. Types of nature management.

Total in the topic 23 presentations

natalia grigorova
Video presentation "Do you know?" - interesting facts about pets. Older preschool age

As is known, animals inhabit the entire planet Earth: directly land, as well as water areas. Many animals live far from humanity or invisible to us because of their size. Some, on the contrary, are constantly encountered by us, for example, insects, birds, animals.

Modern man is very often deprived of the possibility of any communication with wildlife, however, he is surrounded by the descendants of the once tamed animals. between people and pets there is a beneficial exchange - our animals receive shelter, food and care, and in return they bring some benefit.

Dogs have a phenomenal sense of smell - thanks to a wet nose, they quickly determine the direction of the smell.

The pattern on the surface of a cat's nose is as unique as a human fingerprint.

A cow can go up stairs, but cannot go down them. That's why.

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"Do you know that…. Or some interesting language moments. Tashchilina Larisa Mikhailovna teacher of Russian language and literature, MBOU secondary school No. 25, Voronezh

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The longest words ... In Massachusetts (USA) there is a small lake, the name of which is not easy to pronounce without stopping, because it consists of 42 letters, and in English transcription it is even longer (44 letters). Judge for yourself: Chargoggagoggmanchauggagoggchaubunagungamaugg. Translated from the local Indian language, this abracadabra means: "I will fish on this side, you will fish on the other side, and in the middle no one catches anything." Thus, the name of the lake recorded an agreement between two Indian tribes that once lived on its shores.

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In London, the capital of Great Britain, you can buy the world's longest train ticket (15 cm long and 4 wide) to a small station in Wales called Llanfairpisiliogogogok (54, and in English transcription - even 58 letters). The name of the station, for ease of oral pronunciation, was shortened to Llanfire. As for the content of the name itself, it is translated from Welsh as "a church in a lowland overgrown with white hazel, near a river with a whirlpool near the cave of St. Tisilio." It is said that some inventive prankster came up with the tricky name in the past to glorify his small, unremarkable village, which has since attracted the attention of tourists and made it possible for locals to earn money.

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And yet, probably the longest among the Gulliver names is the name of the capital, located in Southeast Asia of the Republic of Thailand, Bangkok. In translation, it sounds like this: "Place of the wild plum"; the full name has as many as 147 (!) Letters and means: “The great city of angels, the highest receptacle of divine treasures, the great land that cannot be conquered, the great and prosperous kingdom, the magnificent and wonderful capital of the nine precious stones, the place where the greatest rulers live and is located the great palace is the home of the gods, capable of reincarnating as spirits. It is this geographical name that is registered in the Guinness Book of Records as the longest in the world.

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« Simple words”in a difficult book ... In the Guinness Book of Records Book B, approximately in 2003 2003 Guinness Records was recorded in approximately a year, a record that the longest word is the longest word, the word present present in the long Russian language, language, consists of 35 35 letters of Russian letters - I highly contemplate - highly contemplating shchy. At the moment you can find shchi. words are much much longer. longer. In the first place of the word is the name of the name of a chemical chemical compound, a compound consisting of 44 44 letters of letters - consisting of mmnilacrylic, as it is already clear, understandable, nilacrylic acid. There is still an adjective, an adjective, an acid. in which there is a hyphen hyphen out of 38 38 characters of characters in which agricultural–– agricultural machine building. In stock also available and machine-building. without hyphen hyphen (38 (38 letters) letters) –– withoutetoxypropylbutan. There is a literary literary word, a word consisting of an. out of 25 25 letters of letters - Napoleonic hatred. - Napoleonic hatred. from

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The German language turned out to be richer in long words. It has a word consisting of 79 letters, and this is donaudampfschiffahrtselektrizitäte ngesellschaft, which, translated into our language, means: "Society of junior employees of the construction supervision authority under the head office of the electrical service of the Danube Shipping Company."

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Well, the English language broke all records, in which it turned out to be the longest word in the world, consisting of 1916 letters: And no one doubts that this is another name for a chemical compound. Here it is in all its glory - C1289H2051N343O375S8. Such is the simple name of the protein.

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There is also the village of O in France, however, this is how it is read, although it is written not with one, but with four letters: Haux. Yu townships are located in France and Sweden. The name A is simultaneously given to rivers in the Netherlands, Germany, places on the Lofot Islands of Norway, as well as in France, Denmark and Sweden. There are also two small towns with the name I - one is located in the north of France, and the other on the west coast of Finland. NamesLilliputians.

Slide 9

E - this is the name of a town in Belgium and one of the ports of Burma. On the Caroline Islands in the Pacific Ocean, you can visit a town called U. A similar name is given to the left tributary of the great river of Southeast Asia, the Mekong, in the Republic of Laos and the city South Korea

Slide 10

Village "Å", Norway. Å is a village in the municipality of Moskenes, Lofoten, Norway. It is traditionally a fishing village specializing in dried fish, but is now also a tourist destination. The city has the Lofoten Stock Fish Museum and the Norwegian Village Fishing Museum.

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River "D", USA. River D is a river in Lincoln, Oregon, USA. The once unnamed river, known as "the world's shortest river", has been listed in the Guinness Book of World Records as the world's shortest river at 440 feet (130 m). This title was lost in 1989 when the Guinness Book of Records named the Row River in Montana as the world's shortest.

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River "E", UK. River E - river in highlands Scotland. It starts in the northwest of Monadh Liath southeast of Loch Ness. This river runs in a northwesterly direction for about 10 km (6 miles) and then flows into Lake Mhòr. River E has the shortest river name in and outside of Scotland.

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Unusual occurrence of names of geographical objects. In 1571, the Spaniard Fernande de Cordoba set off from the Cuban port of Havana to the shores of Honduras in order to capture more slaves for his plantations. However, a severe storm, which lasted several days, knocked the ship off course, and when the sea calmed down, the Spaniards found themselves near an unknown flowering land. When asked what it's called locals answered something like "Yucatan" or "Tektekan", which, as it turned out later, meant "I do not understand you." The Spaniards took these words for the name of the country. Since then, on the map of Central America, one of the peninsulas has been called Yucatan.