This turtle is perfectly floating its limbs. Approximate calculation of space
Lyceum / 2007. academic year Teacher Rudakova T.F. Saratov 2007
Quiz "I want to know everything" on the islands of the Pacific, the turtle giants live. They are such a magnitude that children can ride them on the shell. To decipher the name of the world's largest turtle, solve the proposed examples and place the answers in descending order. E): 67; E): 42; C) 18450: 246; X) 30240: 63; M) 38640: 48; P) 51750: 25; And) 7912: 86; L): 729; O) 24325: 35 e): 328 Dermohelis
At the board: x: 3 - 71 \u003d 32 x: 2 \u003d 32 + 71 x: 2 \u003d 103 x \u003d 103 * 2 x \u003d: 2-71 \u003d 32 32 \u003d 32 Reply: 206 Alone: \u200b\u200b(y + 6): 4 \u003d 100 y + 6 \u003d 100 * 4 y + 6 \u003d 400 y \u003d 400-6 y \u003d 394 (394 + 6): 4 \u003d \u003d 100 Answer: \u003d 600 Express the turtle mass in c., Grams: 600 kg \u003d 6c. , 600kg \u003d
The solution of the task of 207 from the cities of A and B, located at a distance of 185 km of Rug from each other, left two cars at the same time in opposite directions. One of them at a speed of 95km / h, another 90 km / h. At what distance from each other will these cars last 6 hours after the start of movement?
Task Analysis: Is it possible to immediately answer the task question? What car and why will the longer distance go? Solving the problem at the board expression. Task conversion. So what distance did it become between cars? (how many km were removed) on the mobile scheme, make a new condition. How long will there be cars longer?
To enjoy previewing the presentations, create an account ( account) Google and log in to it: https://accounts.google.com
Signatures for slides:
Mathematics teacher GBOU Lyceum №126 St. Petersburg Gudkov Olga Viktorovna Multiplication and division decimal fractions
Repetition What is the decimal record fractional numbers? Name the discharge of decimal fractions? Call the rules of addition (subtraction) decimal fractions. Call the rules for multiplying decimal fractions. Call the rules in the set of decimal fractions by 10, 100, ...; 0, 1; 0.01; ...
Oral calculations 3.08 + 0.2 2.54 + 0.06 8.2 - 2.2 6 - 0.02 4.7: 10 0.48: 4 0.9: 100 25.5: 25 0, 8: 16.
Find out who hides under such an unusual name to you will help the next task. 10 12.5 50 0.8 4000 1 0 100 0.1 0.008 0.5 0,008 40 1 0 1 h E R E P A X A 0 0.5 1 0.008 40 1,125 0.01 0.1 x R A E P e a h 100 ×? \u003d Dermohelis ̶ What is it?
Turtles dermathelis live up to 200 years on the Pacific Islands. They are such a magnitude that children can ride them on the shell. This turtle floats perfectly, its limbs turned into flippers. Decorations are made from the shell, and eggs and meat are eaten. How much is one such a turtle weigh? It turns out that if this is a number to increase in 0.024, and then from the product to subtract 3,227, then it turns out 11,173. I will solve this task. Let x kg - the mass of the turtle. 0,024х - 3,227 \u003d 11,173, 0.024х \u003d 14.4, x \u003d 600. Reply: 600kg.
Calculate the value of the expression: a) 5.6 2 - 3.2 2 \u003d b) (5,6 - 3.2) (5,6 + 3.2) \u003d 31.36 - 10.2 \u003d 21,12 2, 4 8.8 \u003d 21.12 What did you notice? Write down equality in alphabetic expression. a 2 - b 2 \u003d (a + b) (a - b) Find the sum of numbers: 0.1 + 0.2 + 0.3 + ... + 1.8 + 1,9 + 2
(5,8 + 20) m 5,8m p \u003d 2 × (a + b) p \u003d 2 × (27, 5 + 25, 8) \u003d 2 × 50.3 \u003d 106.6 (m) (7.5 + 20) M Task. Find the length of the fence surrounding the house of the rectangular shape, if the length of the house is 7.5 m, the width is 5.8m, and the fence is made at a distance of 10 meters from the house 7.5m
Independent work 1) Calculate: 2.7 12 + 9936: 1000: 4,6 - 25,22: 26 2) Solve equation: 21.87 - 323.91: X + 8.74 \u003d 12.9
Answers 33.59 x \u003d 18.3
On the topic: Methodical development, presentations and abstracts
Objectives: to summarize the studied material. Create knowledge, skills and skills of the addition and subtraction of decimal fractions during solving problems. Webize interprete relationships in the process of studying those ...
This presentation is designed as accompanying material to the first lesson for studying the topic "Addition and subtraction of decimal fractions" in grade 5 ...
Turtles have earned respect to many factors. These reptiles are one of the four species that live on the planet Earth about 220 million years. They are able to do the thousandsometer ocean travel, I am satisfied with the lack of food. And its size? Fossil remains of Archelon (nautical turtle) were found in weight exceeding 2 thousand kg and with a powerful beak of 5 meters total length.
Now the turtles have become less, but their dimensions are still quite impressive. Among all species the biggest turtles - these are leathery who live in a quiet, Indian and Atlantic Oceans (Calibr of the shell - about 1.7-8 meters, the weight is about 400 kg). Lichens can grow on their shells, which is logical - as life is approximately 200 years.
Those reptiles that live in water will be larger - among freshwater reptiles you can find instances with a shell caliber of approximately 2 meters. However, this is not far from the limit: To your attention - the most large turtle in the world.
The biggest turtle in the world - leathery turtle
Thanks to science, an instance was investigated, which was caught on West Coast Wales, with pancier disk 2.5 meters, weighing 915 kg and the scope of the front booster approximately 5 meters. He was characterized by such characteristics:
- The formation of this animal was distinguished from his relatives. The shell of this reptile consists of small horny flaps (small osennesses). The largest formed into longitudinal ridges, and the shell itself consists of thoroughly bone records. This type of reptile has nowhere to pull his head, however, it is absolutely no need to hide from opponents. In the mouth located bone spikesWith which the animal grinds food, and when necessary, it is possible to completely eat a big stick.
- Body shape The skin turtle is best suited for swimming - it can reach speeds of 35 km per hour. There are still many different achievements to this reptile, one of them is the fastest water reptile. This turtle is a wonderful diver: its dive record is 1280 meters. In addition, it is able to be under water for 70 minutes.
- Her skins and muscles consist of a very strong layer of Sala. It is known that another 100 years ago, people used him in order to impregnate the seams of boats. In the museum savings from the stuffed animal, fat continues to stand out in constant, and this leads to large quantity Problems.
- With it, as well as due to the dense cover, the turtles are endowed with the ability to save the constant body temperature, but for this she needs to be continuously eating.
- The habitat is a leather turtle - tropics, but you can meet the reptile in northern and moderate latitudes. Data was registered when the turtle overcame the distance of 20 thousand km away - from the shore of the United States to the coast of Indonesia for 2 years.
Because of the possibility of a long time not to use water and food, sailors in the Middle Ages were used by the turtles in the role of "alive canned foods". Thus, some species inhabited on the islands were completely exterminated. Despite the fact that the curtain meat is edible for a person, intestinal infections were marked. Due to eating poisonous jellyfish, their toxins, cad for the turtle, become dangerous for people.
As for the offspring, his leathery reptile displays once every few years. During the breeding period, the female is able to withdraw about 700 eggs. To do this, with the help of its strong paws, it digs in Earth holes, which can be one and a half meters from their depth, fills them with testicles and bursts. Among the eggs can be both non-advocate, under the weight of the sand layer they crack, thus creating space for kids.
After the bugs appeared on the light, they crawl up, while spring sands sand So, as it happens when swimming. The path to the water is the most unsafe time for kids, because the crabs and birds and birds are already poured on the beaches, whoever, whoever suffer with young people. But despite the foregoing, coming to the water, their chances of survival are growing in geometric progression.
Please note that the male of this type of turtle is the only one who is a real danger to people. Cases were seen when during marriage period He perceived the swimmer for a female and for a long time did not let him down from the turtle embrace.
It is also surprised that the skinny turtle is the largest in the world, to deal with shark for her by virtue, and herself dies from opponents, ten times less than it. On land, this is, for example, rats, goats, as well as pigs that previously simply did not live in places of masonry eggs. Most recently there was a case when one subspecies was translated from a number of disappearing in vulnerable, however sultious danger Still remains. Another enemy of the turtles, from which they have no salvation in sea water - It is plastic. The colorless reptile material perceives the jellyfish, after which they swallow and die in torment.
What do the leathery turtles eat?
What is included in the menu of the greatest turtle of the world? These are invertebrate inhabitants of the sea. For example, jellyfish is considered adorable data towers. Strange that the most huge turtles feed Basically not the most nutritious food. They have to absorb the tremendous number of jellyfish to extract all the necessary nutrients to maintain their own weight.
To eat jellyfish was comfortable, in the turtles in the throat there are a lot of sharp spikes aimed in the opposite direction, by which animals can hold the body of jellyfishthat resembles jelly, in its own mouth.
How many leathery turtles live?
Approved data on the average and maximum age of turtles, not yet exist. It is clear that the turtles live for a very long time, but the exact answer to the question regarding the turtle of this species remains a mystery. Maybe this turtle is the most long-lived reptile in the world.
The best diver
The most huge turtles in the world commit the most deep dive into the waterwhich make up 1280 meters. And have every chance to stay under water for 70 minutes. Experts cannot be explained for which they dive so deeply, as their power zone of jellyfish is located at a depth of about 300 meters. Evolution declares that the animals adapt to the new habitat conditions, as well as feeding conditions. In the case, everything happens differently. The turtles are deeply descending into the water in the place where water lacks, and where the conditions for living even worse than on the surface.
The greatest habitat of representatives of one species
Thanks to its own unique structure, this type of turtles is located on the greatest locality. They live in the quiet, Indian and Atlantic Oceans. Because of its own large body weight, the great number of fat and a special circulatory system they can store body heat greater than water temperature habitats. The data of the turtle is serenely migrate to the places where the moisture can be cooled. Living of leathery turtles from the satellite was registered from the shores North America And right up to the southern point of Africa - Cape of Good Hope.
The biggest migration
Pacific leathery reptiles are involved in the greatest, extreme and large migration path. Turtles for strength to overcome the distance of 10,000 - 20,000 thousand km. According to them, it takes them up to 12 months. It is also striking the fact that they pass is the distance to return exactly the same beach where they were born.
Additional interesting information
The turtle of this breed is considered to be a mesotermic animal, not being genuinely cold-blooded or truly warm. It is worth paying attention to the fact that the mesotermic animals still include such:
- Extinct dinosaurs;
- Large white shark;
- Echidna;
- Tuna.
During the danger of the turtle is vigorously protected, blowing strengths, as well as put on the course of your acute jaws. Being wounded, Reptile traditionally publishes a sound cry, outlined as Ryv, moan or washed.
Summarizing lesson
on this topic
"Integers"
in grade 5.
Mathematic teacher
MBOU Gokering School
Republic of Buryatia
Tooky Valentina Baldanovna
Objectives lesson : Repeat and systematize the knowledge of students on the material passed, the development of logical thinking and cognitive interest in the subject.
Lesson plan:
1. Actualization of reference knowledge.
A) oral work.
B) Answers at the board.
C) individual work.
2. Task
3. Conduct work on pairs.
4. Certificate of lesson. Communication No. 736.
Org.Moment
Far and far away where even aircraft are flying is the country of mathematics. In this unusual country there is an amazing city-city of numbers. In this wonderful city there is one unusual street with the title "Natural numbers." And today we will go through this street today, let's see all of its attractions, and the walk will take this plan (the teacher introduces the lesson plan).
Reiteration.
The most important thing is on this street equation. Therefore, 3 people. Go to the board work on cards.
Card№1
a) Tell the Rule How to find an unknown term and solve equation.
B) Tell the Rule How to find an unknown multiplier and solve equation.
Card number 2.
a) tell us the rule how to find an unknown subtractable and solve equation.
B) tell us the rule how to find an unknown reduced and solve equation.
Card№3.
a) tell us the rule how to find an unknown delimitable and solve equation.
B) Tell us the rule how to find an unknown divider and solve equation.
At this time, an oral account number 634.After the oral account herass the answers at the board.
Then the generalization of the teacher on the table.
The solution of the problem.
On islands Pacific Ocean Live turtles giants. They are such a magnitude that children can ride, sitting on them on the shell. This turtle floats perfectly, its limbs turned into flippers. From the turtle shell make decorations, and eggs and meat goes to food.
Decide equation: 8x-3683 \u003d 1117 and you will learn the mass of this turtle in kg.
Answer: 600kg.
Independent work in pairs.
№1. The largest ground animal african elephant. Find out:
A) height in see, solving an example: 125 * 4- (125 + 25) \u003d cm.
B) body length in see, solving an example: 65 * 5 + 65 + 60 \u003d cm.
C) Mass in kg: 6500-2000 + 1500 \u003d kg.
№2 . On the globe dwells the birds - unmistakable compilers of weather forecast for the summer. The name of these birds is encrypted by tasks. After completing them and replacing responses with letters, you will read the name of the birds meteorologists.
37003-8397=
722257+81673=
450:18=
21*15=
X + 605 \u003d 700
* 22 \u003d 1342
8A + 3A-2A \u003d
30U-2U \u003d
28U | 803930 | 28606 |
№3. "True, children, I'm good, looks like a big bag.
By the seas in the older years I overtook the steamers. Who am I?".
In order to guess the riddle to the tasks and replace the responses of the letters.
1)375843-286927=
2)161236+18765=
3) 20c-6c-3c \u003d
4) 5x + x \u003d
5)490:14=
6) 474 + p \u003d 500
7) 8x + 7x \u003d 105
180001 | 88916 | 11с |
№4. Modifications in English County Cumberland broke out a thunderstorm, a strong wind pulled the trees with roots, forming a funnel. In one of such funnel, the inhabitants discovered some black substance. The name of this substance is encrypted in tasks:
1)83005-59628=
2) 701960+85971=
3)3428:8=
4)43*24=
5) y-708 \u003d 194
6) 9x + 9x-4x \u003d
14x | 23377 | 1032 | 787931 |
Check independent work.
After checking, the teacher tells. Slices of shepherd graphite began to mark sheep, and the merchants did inscriptions on baskets and drawers. It happened in 1565. The first pencils had two disadvantages: they were dirty fingers and quickly broke. Slices of graphite have become turned with a tape, a cloth, and for strength mixed with gray, resin, antimony. Later began to add clay and the mixture, burned in the furnace. Such a pencil, which we write today, appeared at the end of the 18th century.
The outcome of the lesson.
So our walk is coming to the end. I hope you liked you, and the results are as follows: ....
Homework: №736.
The most popular home reptiles in our country are turtles. Many owners of such animals are confident that the contents of the turtles are less burdensome than for example, lizards or iguan. This is the main reason for the purchase of such a pet for children or simply as a beautiful living "toys" to satisfy the aesthetic taste. However, the unpretentiousness of the turtles is a myth, and the crying of such a pet is important to know everything about the peculiarities of his life.
The turtles are certainly beautiful and interesting in their behavior animals of rejection. The main feature that distinguishes this type of reptile from other animals is the presence of a shell. This strong and "practical" armor consists of a lower part - a plaster and top - Carapaks. The shape, size, number of flaps and the drawing of the shell are important species signs of the turtles.
It was the shell, despite his severity, helped to continue this reptile for a long 175 million years. All modern turtles have retained the shell, although the shape and color differs from different species and depends on the habitat and method of animal existence. For example, U. sea turtles There is no significant part of the shell, due to which these animals have learned how to move quickly. The soft-flue turtles have a round, like a panese fryingkin, which makes it easily ripped into il.
For a long millennium, these beautiful animals have not changed a lot, but the number of some species over the past centuries has reached a critical mark. That is why it is important not only to carefully follow the health of your pet, regularly showing it a veterinary doctor-herpetologist, but also to make serious attention to the content of the turtle, its diet, maintaining temperature in terrarium, bathing. It is impossible to start a turtle, after without having prepared for it a specially designated place and without having studied all the features of the inverting life.
Mountain and freshwater turtles are the most common "home-made" reptiles. The crying of such animals needs to be aware that most of the land - vegetative, and freshwater - predators and omnivores. Therefore, the first should not be seen in the foods of animal origin (meat, eggs, cottage cheese, etc.). Their diet should consist of vegetables, fruits, berries, herbs-dandelion, clover, plantain. And on the contrary, the diet of freshwater should consist mainly of the "feed of the animal origin" of snails, fish, squid, shrimp of the moth, etc. For freshwater turtles, unlike land, produces a number of good dry feed (sulfur, tetra, etc.)
Freshwater turtles
The habitat of freshwater turtles are reservoirs, rivers, lakes and swamps. Such animals have more time to spend in water, only sometimes crawling out to the land to warm up in the sun. Most popular kinds of turtles as pets, it is: a reddish turtle (trachemys scripta); European marsh turtle (Emys Orbicularis); Chinese Trionix or Far Eastern Turtle (Pelodiscus Sinensis). By purchasing such reptiles, you need to know their features and differences from each other.
The bluff turtle most often can be found in water terrariums. It is very beautiful reptile with bright red, yellow and orange spots that are located on the head on both sides, reminding the ears, for which the turtle and deserve their name. Young individuals up to six months have the brightest coloring than more adult relatives. The upper part of their shell has a color from yellow-salad to emerald green. Over the years, it becomes olive or yellow-brown. In addition, there are drawings of bright yellow stripes and circles of green in the shell.
This is a rather mobile turtle, not only in water, but also on land. The pain of that beautiful is very strong and sharp nails, which she often uses for self-defense. Having taken out the turtle from the terrarium, it is worthwhile to fear her hind legs, they will try to push away from the hands. And at all, it is not necessary to bring it to the face and open areas of the body.
This is a water turtle preferring shallow water. She swims well, turning around the paws quickly, and hides at the bottom, under the stones, drowning in Il. Like most water turtles, the European Bolotnaya is a predator.
This turtle is oval smooth shells of dark olive color covered with yellow stripes and specks. The head, legs and neck are also littered with large points of yellow, the shell is painted, as a rule, in a dark brown, less often in yellow. The turtle has a long tail, which is approximately half the length of the shell, it serves as an additional "steering" when swimming, the main tool for this is the hind limbs, rather long and sharp claws on the fingers.
This turtle swims perfectly and dives, it can stay under water for a long time. However, through every 15-20 minutes, she needs to be sealed to the surface to be in air. On land, European marsh turtles are not so active, but they are still faster than land. On land, they warmly basses in the light, but with the slightest dangers are hidden in water.
This turtle has a greenish-brown shell with a glossy surface. In growth, it reaches 25-30 cm, tops covered with soft skin without horny flaps. The young individuals "spin" are covered with tubercles, which, with age, gradually disappear, and the shell acquires an almost flat view. The neck of the trionix is \u200b\u200bvery mobile and long, and the muzzle is elongated in the trot, at the end of which there are well-visible nostrils. Powerful jaws of this predator have sharp cutting edges that the turtle can cause serious injuries, which makes it quite dangerous. Wounds after such "bites" are badly healing, so with this pet it is necessary to be very careful in circulation. In addition, sharp claws are located on the three fingers of the paws, also pose a threat. An unusual feature of the trionix is \u200b\u200ban extra skin breathing, along with the pulmonary.
According to lovers, Chinese Trionix is \u200b\u200ba very suitable candidate for maintenance in the terrarium, since the ratio of water and land should be 5: 1, and watch the behavior of the turtle is very convenient. However, it must be kept separately, since the trionics may pose a threat not only for its owners, but also for other soft turtles.
Land turtles
Ground turtles live in steppes, forests and deserts. In enough high temperatures These animals are actively moving, as the processes in their body occur normally, and closer to winter fall into anabyosis, that is, in a hibernation.
Such turtles of vegetable food - by any edible fruits and berries, cabbage, cucumbers, tomatoes, carrots (grated or thin sliced), salad, dandelions, clover, some plants of family of cruciferous (leaves, flowers), young leaves of trees, but sometimes eaten and Insects - rainworms, snails. Externally, land turtles are all similar, their differences are coloring, the shape of the shell, the amount and type of shields and claws. The most popular as pets are:
Central Asian or Steppe Turtles (Agronemys Horsfieldii), Mediterranean Turtles (Testudo Graca), Balkan Turtle (Testudo Hermanni), Egyptian Turtle (Testudo Kleimanni).
As a pet, this is the most affordable animal of all reptiles, it can most often meet in terrariums. The size of such a turtle reaches 18-30 cm, its shell is relatively wide and round, painted with gray and green and yellow shades, the tail is thin and bone, the males are much longer than the females. On the forehead limbs of such animals four fingers, and the fingers of the back paws are fought. Such turtles are quite slow and very hardy to adverse conditions. ambientProbably, it makes them the most popular.
Central Asian turtles drink water rarely, because in nature they practically do not have access to it. With an excess of moisture, they are routine, but when it can do it and not allocate urine. In this case, the wet environment can provoke the development of pathogenic bacteria in such animals, so such a turtle is sometimes quite bathing. Central Asian loves to dig holes, therefore it is best for them to tempt the ground from a large pebble layer of at least 6-7 cm. Also, these turtles have large "claims" to light and ultraviolet, which must be taken into account by creating their place of residence.
The shell of such a turtle is convex and high, it has round-oval, along the edges, usually a bit served. In size can reach 30 cm. Carapaks has dark spots on a light olive or yellowish-brown background, which increase with age. Sometimes stains merge, and the whole turtle acquires a dark, almost black color. On the back of the shell there is one horny hill. On the front paws of such turtles of five fingers with claws. Tail short and stupid. The head is covered with large symmetric shields. Interesting difference These turtles are "spurs" on the reapers of the thighs.
The mediterranean turtles live in dry steppes, semi-deserts and slopes of mountains covered with shrub, this must be taken into account and add terrarium to the interior, for example, sprouted cereals, which, besides, are happy to eat such a turtle in food. This animal is less "digging" compared to the Central Asian, so the soil layer may be thinner, approximately 4-5 cm. Such turtles are active only in the morning and in the evening, at night and in the middle of the day are hiding and even buried.
There are two subspecies - Western and oriental, they differ in size, the eastern Balkan turtle is much larger. The main difference of these animals from conifers is the spike of a conical shape at the tip of the tail, which is also slightly longer than that of other turtles. The high shell of such reptile is usually 14-16 cm, but in rare cases it also reaches 20 cm. In young representatives of this breed, the upper part of the shell is painted by brownish-yellow, in adults it darkens, and only bright yellow border remains around the edge. Adult males smoke females, but their tails are longer and thicker.
In nature, the Balkan Turtle dwells in dry steppes and shrubs, which should be considered, creating her living conditions in captivity. A very important factor in comfortable existence is the humidity of air and soil in the terrarium, it is impossible to allow soil moisturizing drinking water. Such turtles are very active, in spring, summer and autumn in the morning and evenings, they move around their territory in search of a stranger. Balkan turtles originate together, they even climb each other, forming a pyramid, while males love to "find out the relationship", entering into a fight.
Egyptian or turtle chopmann - the smallest of them all land turtles. Its size is a maximum of 14 cm, while the length of the shelter itself is a length of 9-10 cm. Males slightly fewer females. The shell is a very convex yellow-green shade with a black stripe along the edges of the segments. On abdominal panels there are black spots, in such turtles on the front paws of five fingers with claws.
Original Egyptian turtle and his way of life. Unlike most turtles, it is active in winter, and in the summer it goes into the hibernation. This is due to the fact that in the summer of the homeland of Egyptian turtles, the strong heat they carry badly. These animals prefer a daily lifestyle, they can be kept several pieces in the terrarium. Such reptiles live an average of 30 years.
