Class hour on the topic "Price of a minute"

Target: Expanding students' horizons of the importance of time in life;

Formation of assessment and self-esteem of time,

Developing a sense of time and respect for time.

Board design:

• “Time is precious, time is plentiful and time is short”
• “Time is more valuable than money”

Progress of the lesson

Puzzles

It has no legs and no wings,
He flies fast, you won't catch him.

Answer: Time

* * *

What cannot be returned?

Answer: Time

* * *

Yesterday it was, today it is and tomorrow it will be.

Answer: Time

* * *

Without measuring, you won't know
But without knowing, you feel
And sometimes you kill.

Answer: Time

Leading (teacher). Today we will talk about time. We will learn what time is, why it is needed and how to use it correctly, and also talk about the history of the creation of watches, their types and operating principles.

• Make up a proverb:

• “Know the value of minutes, the count of seconds”
• “If you miss a minute, you lose an hour”
• “Time is more valuable than money”
• “If you fall behind by an hour, you won’t catch up in a day”

Presentation

• 1st student . Time is precious to man, and he determines time by the clock. At different times appearance hours was different. There are some expressions associated with the workings of clocks. For example, they say: “A lot of water has passed under the bridge since then,” and we understand that a lot of time has passed. And they say this because in ancient times there were water clocks. They were arranged in the form of two communicating vessels. Time was recognized by how much water flowed from one vessel to another.

• An hourglass was built like a water clock, where sand was poured from the upper vessel into the lower one. In Rus', these watches were called flasks, as they were made of glass. They were widely used on ancient ships. The sailor on duty at this clock struck the bell every half hour and announced the number of bells - “struck the bells.” Today there are hourglasses designed for 1, 3, 5... minutes.

• Later, mechanical watches appeared. They are different for us. Time is sometimes determined by the striking of the clock. This is where the expression “beaten hour” comes from. The word “broken” indicates that a whole hour has indeed passed, since the striking of the clock told us so.

• 2nd student. On October 2, 1918, the main clock of our country began to speak - the Kremlin chimes. Every hour the clock strikes solemnly and majestically. People all over the world listen to him. And there is no person who would not know the melodic and exciting chimes located on the Spasskaya Tower of the Kremlin.
• Listening to a recording of the chimes.

• 3rd student . The work of the clock does not stop for a second, time flows continuously. Place your palms on your chest. You feel your heart beating and working. It works all our lives without stopping, it works and drives the blood so that each of us is ready to do something useful every minute. Let's sit silently for a minute. See how long a minute is! What do they do in our country in a minute?

• 4th student.
• It looks like an ordinary box
• But he is a real wizard.
• The whole Universe lives in it,
• At least it's an ordinary thing.
• He will tell you a hundred stories,
• He will invite you to the circus for an hour,
• He will show you films -
• Each of you has. (TV.)
• In one minute, factories produce 13 televisions.
• 5th student.
• Admire, look!
• North Pole inside,
• Snow and ice sparkle there,
• Winter itself lives there.
• Forever this winter for us
• Brought from the store. (Fridge.)
• The refrigerator is a human assistant. It saves food, saves medicine, and therefore saves time. Every minute, 11 new refrigerators are produced in the country.
• 1st student.
• So that I can take you
• I don't need oats
• Feed me gasoline
• Give me some rubber for my hooves,
• And, raising a whirlwind of dust,
• Will run... (car)
• Our factories produce different vehicles - trucks, cars, large, small. Almost four new cars roll off the production lines every minute.
• 2nd student.
• Do you want to sail the oceans?
• Descend into the depths
• Visit many countries
• And rush to the moon,
• Be a brave explorer
• In the thickets of centuries -
• All edges are open to you
• On the pages of books.
• The book is printed so quickly that you have to count by seconds. Every second, 45 copies of books are published in our country, and 7-8 of them are intended for you guys. How many books do you publish per minute?
• Let's count: 7 x 60 = 420 (books just for you guys), and in total:
• 45 x 60 = 2700 (books).
• 2700 is a library!
• 3rd student. Every minute, 1,560 pairs of shoes leave the assembly lines of our country. What a moment!
• 4th student . What about hours? Happy alarm clocks, important ones wall clock, small hand ones and all others? Factories make 77 pieces every minute. In 1 minute, industrial products worth 1.4 million rubles are produced. The loss of one minute of working time is equal to the loss of the results of a day's work of 200 thousand people.
• And if suddenly all the plants and factories in the country stopped working for one minute, the state would lose 50 million rubles. That's how much a minute costs.
• 5th student . What can we do in a minute?
• There is a competition, such as reading (words per minute), solving examples (students write only answers), etc.

Guys, do you know what a minute is?

Student: this is 1/60 of an hour. What can you do in one minute? At first glance it seems nothing. But time is made up of these minutes. Let's take our class. There are 12 students in the class. If everyone takes one minute with their pranks, then there will be 28 minutes left to gain knowledge. Here's one minute for you.

Teacher: Guys, you need to develop a sense of time within yourself, learning to live clockwise. Is it worth working? Maybe you can live without a watch. Let's try to imagine. what would happen to each of us if all the clocks disappeared.

Student: We came to school. It's time for lessons to start, but not even half the students are in the class. There is no teacher either, he just left the apartment.

Student: I returned home after school. Oh, how hungry I am, and my mother has only just started cooking.

Student: we came to the cinema, and half of the film was already shown.

Teacher: This is what a mess it would be if people didn’t look at their watches and gradually develop a sense of time. Or you can have a watch and not value time.

Pupil:

With a watch, friendship is good, work, rest.
Do your homework slowly, and don’t forget your books.

Teacher: So that in the evening, when you go to bed, when the due date comes, you can confidently say - it was a good day!

Lesson summary.

What is the topic of our lesson?

What proverbs do you remember?

What needs to be done to have a sense of time?

Preview:

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Slide captions:

CLASS HOUR “The Price of a Minute” Varakosova L.P. 4th grade

OBJECTIVES: 1. Broadening the horizons of students. 2. Fostering respect for time.

HISTORY OF THE CLOCK. What watches do you know?

WATER CLOCK

HOURGLASS

HOURGLASS

HOURGLASSES – SEA GLASSES

MECHANICAL WATCHES

PRICE OF A MINUTE. It looks like an ordinary box, But it’s a real wizard, The whole Universe lives in it, Even though it’s an ordinary thing. He will tell you a hundred stories, he will invite you to the circus for an hour, he will show you movies - each of you has one.

TV. In one minute, factories produce 13 televisions.

SECOND RIDDLE Admire, look! The North Pole is inside, Snow and ice sparkle there, Winter itself lives there. Forever brought to us this winter from the store.

FRIDGE. Every minute, 11 new refrigerators are produced in the country.

THIRD RIDDLE For me to take you, I don’t need oats, Feed me gasoline, Give me rubber for my hooves, And, raising a whirlwind of dust, He will run...

AUTOMOBILE. Almost four new cars roll off the production lines every minute.

Do you want to sail across the oceans, Descend into the depths, Visit many countries And rush to the moon, Be a brave explorer In the thickets of centuries - All edges are open to you On the pages of books.

PRICE OF A MINUTE.

The book is printed so quickly that you have to count by seconds. Every second, 45 copies of books are published in our country, and 7–8 of them are intended for you guys. How many books do you publish per minute? Let's count: 7 × 60 = 420 (books just for you guys), and in total: 45 × 60 = 2700 (books). 2700 is a library!

PRICE OF A MINUTE. . Every minute, 1,560 pairs of shoes leave the assembly lines of our country. What a moment!

PRICE OF A MINUTE. The factories produce 77 pieces of funny alarm clocks, important wall clocks, small hand clocks and all others every minute.

PRICE OF A MINUTE. Solve the examples: 1) 2x4= 2) 3x15= 3) 21:3 = 4) (3+7)x1= 5) 5:1+8= 6) (7 - 6)x10= 7) 4x4 – 3x4= 8 ) 3x4 – 12= 9) 28:7x9=

The minute is rushing by. The minute is short. But in a minute you can find a star, a beetle, a solution to a problem... And a rare mineral that no one has yet discovered. In a minute the Rockets take off from the Earth. But so that they could fly into deep space - Scientists devoted dozens of years to work, And since childhood, astronauts Dreamed of flight. Even if the minute is short, Let it rush very quickly! A big, bold dream It can fit in! N. Yurkova

TIPS: 1. Organize your day. 2. Go to bed early and get up early. 3. Do exercises in the morning. 4. Don’t study your lessons immediately when you come home from school, but after an hour or two. 5. After school, take a rest, but it’s better to be active and fresh air. 6. Do your homework during the day. 7. Don’t study late in the evening, as your brain is already tired. 8. Do your homework first, whichever is more difficult. 9. Attend a section or circle. 10. Help your parents with housework.

Days come to us like friends in disguise, bringing priceless gifts from an unknown hand; but if we do not use their offerings, they silently leave and never return. Each subsequent morning brings us more and more new gifts, but if we have not been able to use those that were brought yesterday and the third day, we become less and less able to use them, until, finally, the ability to appreciate them and use them disappears completely.

Time is the raw material from which we can make whatever we want.

The very hours that you carelessly waste, in case beneficial use could ensure your success. What magnificent monuments would be created by young men in unfavorable conditions, in such wasted periods of time, which are completely unappreciated by many of us?!

Michael Faraday at first could engage in physical experiments only in the free hours he had left from his bookbinding craft. Humphry Davy gained fame by studying physics in his free moments in the attic of the apothecary shop where he worked. “There is no business or occupation,” says Uitenbach, “that would not allow a person to devote some time every day to the scientific studies of his youth.”

“The plea for lack of time to complete our education,” says Matthew Arnold, “will immediately prove unfounded as soon as we seriously begin to examine our allocation of time.” “As I have observed,” says Burke, “indolence fills a man’s time much more, and allows him less to be his master, than any other occupation.”

What kind of person is so busy that he does not have one hour every day to supplement his education? Meanwhile, what miracles would be performed in “one hour every day”!

One hour daily taken away from an empty pastime and used usefully, it would give a person even with mediocre abilities the opportunity to completely master any branch of science and would make an ignorant person educated after a few years. In one hour you can read twenty pages carefully, which will amount to over seven thousand pages or seventeen large volumes per year. "One hour a day":

in twelve years will more than equal the time devoted to study during a four-year course at the university;

can make all the difference between mere existence and a useful, happy life;

can and did make an unknown person famous, useful, a benefactor of humanity.

Now imagine the great opportunity that lies in the two, four, or even six hours a day wasted uselessly by young people of both sexes in the restless pursuit of amusement and amusement!

Many great men have built their fame by taking advantage of periods of time that most people waste completely aimlessly:

Harriet Beecher Stowe wrote my famous book"Uncle Tom's Cabin" in between numerous chores;

Longfellow translated "Hell" in bursts of ten minutes a day while his coffee was brewing, and continued to work like this for several years until the end of the work;

Hugo Miller, working diligently as a mason, he found time to read scientific books and write down the information he discovered on the stone blocks with which he had to deal;

Berne wrote many of his the best poems while working on a farm;

Lincoln studied law in his free hours, when he was engaged in land surveying, and passed the initial stages without any help while guarding a warehouse;

John Stuart Mill wrote a significant part of his most famous works while serving as a clerk for the East India Company;

Charles Frost a famous shoemaker from Vermont, decided to devote one hour a day to scientific studies and as a result became one of the most outstanding mathematicians in the United States, acquiring, in addition, an enviable reputation in other fields of knowledge.

Great people have always been very time-efficient:

Cicero said: “The time that others devote to spectacles and entertainment, or even to mental and physical peace, I devote to the study of philosophy”;

days Alexander Humboldt they were so busy with various things that he studied science at night or early in the morning, when others were still sleeping;

Gladstone He constantly carried a book in his pocket so that some unforeseen free moment would not be wasted in vain.

What a reproach this life is for so many young people of both sexes who waste whole months and even years in vain!

Time is money. Of course, we shouldn’t be too stingy with it, but we shouldn’t waste hours, just as we shouldn’t throw away money. It has been well said that lost wealth can be regained by activity and frugality, lost knowledge by study, lost health by abstinent living and reading; but lost time is gone forever. With the loss of an hour - no matter how bad it is in itself - the worst thing is not the loss of time itself, but the waste of vitality and character in a careless life. As a result of laziness, the nerves seem to “rust”.

Every day there is a small life, and our whole life is just a repeated day.

A series of conversations for the Senior Watch Museum preschoolers of preschool educational institutions. Notes

Alekseeva Elena Leonidovna, teacher of the highest qualification category, teacher additional education, Municipal budget preschool educational institution Kindergarten No. 5 “Alyonushka” in the city of Armyansk, Republic of Crimea

The material is intended for senior and preparatory teachers groups of preschool educational institutions, for teachers primary classes, as well as for parents who develop children independently

Target: the formation of ideas about time and various devices for measuring it.
Tasks:
introduce children to the concepts of “time”, “time orientation”;
expand children's knowledge about watches, their types, purpose;
develop mental capacity children;
enrich children's vocabulary;

cultivate interest in knowledge.

annotation

Dear colleagues and parents!
I present to your attention a series of conversations intended for my Watch Museum, which is under development.
The watch museum in question is an element of a developing subject-spatial environment in preparatory group, where I work as a teacher. The Museum of Clocks will collect different kinds watches, old watches, new watches, watches of bizarre shapes, sizes, some of the exhibits have already been made by hand, and constant replenishment of the collection is planned. After all, that’s what a museum is for – to collect, store and supplement. The opening of the Museum is expected at the beginning of the new academic year.
In conversations collected, adapted for senior preschool and junior school age main information about time and types of clocks. I tried not to load the material with abstruse terms; I structured the course of the conversation according to the principles of accessibility, systematicity, consistency and gradualism.
I would like to immediately protect myself from criticism in the sense that the notes of my conversations are framed as a monologue by a teacher. I did not insert physical education minutes into the text of the conversations. Colleagues, we are creators, so please use this material as the basis for your creativity and limitless unique imagination.
As visual material I used it for conversations various pictures from the Google search engine, which I designed as a separate folder for each conversation. A conversation without a picture (or any other visual aid, mechanism, for example) will not carry sufficient educational meaning.
Thank you for your attention!

Conversation: What is time?

Target: introduce children to the concept of “time”, “time orientation”
Tasks:
expand children's knowledge about time;

develop intellectual skills;
develop the ability to identify the meaning of proverbs and sayings;
enrich children's vocabulary new vocabulary;
develop the ability to listen and understand each other.
Progress of the conversation:
IN explanatory dictionary Ozhegova has 10 descriptions of the word “Time”. What is it? Let’s take the following interpretation from the dictionary: “Time is duration, the duration of something, measured in seconds, minutes, hours.”
Today, every person, every day, every second, deals with time. Time is both past, present and future. Such a surprisingly broad concept. We can say that time is our perception of space. With its help, we can easily talk about events (or something else, for example, about our feelings or intentions) that have happened to us, are happening or will happen. With the help of time we navigate in space. For example, it’s easier to say “Tomorrow at 7 am I need to go to kindergarten” than “When the sun rises and is in the sky at that point (we show), I need to be in kindergarten.” What if we have to talk about what happened two weeks ago? What then? 14 times ago the sun went down and my mother bought me a doll? You can get confused.
We cannot touch, smell, see, hear time. It is abstract (immaterial, non-concrete, blurry).
Besides, time moves. And only forward. Some even say that time flows, flows away, runs away. Time cannot be stopped, it cannot be turned back. There is even a saying: “You can’t turn back time.” It moves from the past to the future. And the moment that is happening now, at this second, is the present. Therefore, people at all times tried to take care of time, valued it, and learned to distribute it correctly. They say: “The hours drag on, the days go by, the months pass, and the years fly by.” Remember how your moms and dads say: “It seems like our Vanya/our Katya was just born, but he’s already sooo big!”
Do you ever feel like time is dragging on like rubber? There are times when you don't want to sleep at nap time! You lie there and think: “Well, when will the teacher wake us up?” We can say that time drags on when you are bored or have nothing to do, when we are waiting for someone, right?! “The day until the evening is boring if there is nothing to do.”
And people also say: “ Happy Hours They’re not watching.” How to understand this? That's right, when we are busy doing what we love, when we go to the zoo with our parents, when we visit our grandmother in the village, time flies by.
It turns out that you and I have had this sense of time since birth. Let me explain: when you were born, you slowly got used to eating at a certain time, washing your face in the morning, swimming in the evenings, and so on. When you went to kindergarten, you got used to a new routine (and a daily routine is nothing more than properly organized or planned time). In the morning, exercise, then breakfast, then classes, then games, and so on. As you get older, you already see in advance what will happen next.
What helps us determine time? Let's list:
1. watch;
2. time of day;
3. days of the week;
4. seasons;
5. months of the year.

So, let's summarize the above. Please answer the following questions:
1. Can we touch time? Why?
2. Does time help us? Why is it even needed?
3. When we were little, did we navigate in time?
4. What is time?
5. Can time crawl? When does this happen?
6. What helps determine time?
7. Why do we often say that time is more valuable than gold?
8. Should we navigate in time?

Conversation: What is a clock?

Target: development of time concepts and acquaintance with the history of watches.
Tasks:
introduce children to the concept of “clock” and the history of its origin;
cultivate curiosity and respect for time;
broaden their horizons and enrich their vocabulary.
Progress of the conversation:
Last time we got to know each other over time. Let's remember what it is? That's right, time is duration, the duration of something, measured in seconds, minutes, hours.
Today we will get acquainted with the clock as such, with the attribute of time. With the object that most helps us navigate in space. We cannot imagine our life without watches. They hang on the wall, stand on a shelf, they are on mobile phone in adults, and in their arms too! What it is? A watch is a device for measuring time.
Why do we need a clock? It’s right not to be late, to know when to go to work, to the museum, when your favorite cartoon starts.
How did people live without watches before? How did you navigate in time? So you say that instead of an alarm clock, a rooster woke everyone up, and the day began with its singing. But what to do if there is no rooster? What should I do if I need to go somewhere not in the morning, but at lunchtime? It's worth coming up with something different.
Ancient people navigated in time by the Sun. They observed the world around them. The sun rises - morning, the Sun directly above your head - day, the Sun sets - evening. People even came up with sundials. We will get to know them later. Convenient, of course. But is there always sun in the sky? No. When it's raining, it is difficult to determine what part of the day it is. Remember, on cloudy days we often say: “It feels like it’s evening” (when in fact it’s still morning or afternoon). Besides, ancient man it was difficult to accurately determine time the way it is determined today. It turns out that navigating by the Sun is not very inconvenient either.
People began to think and wonder what to do, how to invent a device for measuring time. And they came up with a water clock and an hourglass. You've already seen sand ones, even some people have them. What is a water clock? Both are considered the oldest human inventions for more accurately determining time. This is really when you can say that time flies! Water was poured into a tall narrow vessel with a hole near the bottom. Special people attached to the clock, at sunrise they filled the vessel with water. When all the water was poured out, they notified the city residents about this with loud shouts and filled the vessel again. They did this several times a day. And the smaller the vessel, the more accurately time could be determined. Ancient people used these inventions for thousands of years. But there will always be an inventor who will come up with something new.
This is how they were invented:
fire clock (candle of a certain size with divisions marked on it). They were made from different materials(made of wax mixed with wood shavings and other burning components), they were covered with tar so that the “clock” would burn for a long time. They appeared in India and China.
oil clock (this is a clay bowl with a wick, filled with oil). This is a liquid watch. People lit the fuse, it burned, and the oil evaporated. There were numbers written on the side of the clay bowl. People looked at what the oil level was, which means so much time.
Neither of them were reliable. After all, they had to be watched so as not to go out. But what if strong wind or rain?
Craftsmen came up with the familiar mechanical watches. It is believed that they were invented in Byzantium. Why mechanical? Yes, because they consisted of countless nuts, bolts, cogs, springs, gears, a pendulum, chains, and so on. At first there was one hand, probably it only showed the hours. Accordingly, there were 24 divisions. They were improved and improved, because the mechanism also had to be monitored, parts had to be lubricated, and sometimes their time had to be checked using a sundial. And centuries later, in every city, a large mechanical clock hung on the main tower or cathedral. People made them both small and large. Mechanical watches have survived to this day.
In addition to mechanical ones, not so long ago (at the beginning of the last century) people invented electric and electronic watches. Physicists who worked with the electromagnetic field worked here. They were very accurate and the most reliable compared to mechanical ones, which could fail due to one broken spring or due to dust getting inside the complex mechanism.
But during the discovery of atomic energy, people invented the most accurate, very reliable clocks - atomic clocks. They run on atomic energy instead of batteries or the electricity of an electronic watch, instead of the mechanism of a mechanical watch. It is believed that atomic energy is inexhaustible. This means that this watch can serve humanity for many millions of years. Of course, we won’t have atomic clocks, because they are very bulky and only scientists monitor them. But mechanical and electronic watches are quite affordable and everyone has them.
So, what new did you learn today?
1. Why did people begin to think about inventing a mechanism for determining time?
2. Which watches are the most reliable?
3. How do water clocks work?
4. Why were people near the water and oil clocks?
5. Why don't any of us have atomic clocks?

Conversation: Sundial

Target: introducing children to sundials, their history, purpose
Tasks:

activate children's vocabulary and fill it with new vocabulary;

cultivate respect for time;

Progress of the conversation:
We have already become acquainted with time and instruments for measuring it. What kind of devices are these? That's right, the clock. Today we will talk to you about sundials: who invented them, when, for what purpose, whether they have survived to this day, whether they are large or small, whether it is convenient to use them to determine the time.
A sundial is an ancient device for measuring time by the sun. They are built on the knowledge of our ancestors about cosmic bodies, in in this case about the star solar system. The birthplace of sundials is considered to be Ancient Egypt, where they worshiped various gods, built temples for them, and served them. One of the main ancient Egyptian gods was the sun god - the god Ra. It was believed that he ruled all parts of the world: the firmament, the earth, the underworld. Ra was associated with a falcon or hawk, on whose head there was a bright solar disk. The Egyptians believed that all forms of life were created by his hands, because the Sun is a source of light and heat, without which no living creature can grow and exist. Many bright temples were erected to God Ra, in which his priests served.
One fine day the priests watched how Once again the god Ra "travels in his boat across the sky." They suddenly noticed how the columns of the temple cast a shadow first in one direction, then in the other, smoothly, as if in a circle. The priests came up with the idea of ​​​​creating a sundial, by which they could determine the time when the beloved god Ra sailed on a boat in one or another part of the sky.
Let's see what they came up with: the priests installed a large peg in front of the temple and called it “gnomon”. It was a sacred peg, which was decorated with carved patterns and inscriptions. When the sun (the god Ra) appeared in the sky, the shadow from the gnomon moved along a pre-marked circle (something similar to today’s dial). Evenly applied marks measured equal periods of time. The circle was also decorated with patterns, often with images of the Sun, stars and Moon in different phases. People liked this idea, because it became possible to determine exact time. Sundials began to be installed in public places - in squares, baths, on the estates of emperors, and so on.
Sundials came in different designs:
Horizontal (located directly on the ground, they can be built on sand, or indeed on any horizontal surface);

Vertical (these clocks, respectively, are located on a vertical surface, and their gnomon seems to stick out to the side. Most often they are installed on the walls of towers, tall buildings and structures).

If you say that such a watch cannot be taken with you. I will answer - guys, you can! Craftsmen immediately reacted and came up with a smaller copy of a sundial - miniature wrist watches. Travelers and monks had special staffs with marks, and by placing them at a certain angle to the Sun, they could tell the time.

But it is worth noting that installing a sundial required certain knowledge of astronomy and geography. For each location, it was necessary to correctly calculate where to place the gnomon and where to place the dial. Without these calculations, sundials would no longer be accurate. This can now be checked using ordinary mechanical or electronic watches to see if the sundial shows the time correctly, but previously people did not have this opportunity.
In addition, the biggest disadvantage of sundials is that they can only work in sunny, clear weather! However, sundials have served people for thousands of years. And people were very pleased with them.
Let's summarize our conversation:
1. Where did the first sundial appear?
2. Who is the god Ra?
3. How did you come up with the idea of ​​creating a sundial?
4. What is a sundial made of?
5. Is it easy to make them yourself?
6. What types of sundials are there?
7. Where was the sundial installed?
8. What are the disadvantages of sundials?

Conversation: Hourglass

Target: introduce children to the hourglass, its history, purpose
Tasks:
develop cognitive activity And logical thinking;

consolidate knowledge about time and clocks;
cultivate respect for time;
develop the ability to analyze, synthesize, compare, generalize;
develop the ability to listen to each other.
Progress of the conversation:
We continue to get acquainted with the types of watches. Today we will learn what an hourglass is.
An hourglass, like any other clock, is, first of all, a device for measuring time. They consist of two transparent glass vessels connected to each other. One vessel contains fine sand, which is poured into another vessel through the neck, thereby measuring a certain period of time. It can range from a few seconds to several hours.
It depends on the size of the vessels: small vessels - a short period of time, large vessels - a long period of time, since they can hold a lot of sand. In addition, the size of the neck (the narrowest part of the watch) also matters: a wider neck means the sand runs faster from one vessel to another, less time is wasted. A narrower neck means the sand seeps out slowly, so more time is wasted.
It is believed that the first hourglasses appeared in India and China. They quickly spread throughout the world because they were easy to use, reliable, they could measure time at any moment of the day or night, since they did not depend on sunlight, neither from the weather nor from the wind. But there are also disadvantages - an hourglass only measures a short period of time; it cannot measure a day. Can you imagine what the vessels should be like and how much sand will be needed so that it flows from one vessel to another during the entire 24 hours. In addition, an hourglass ceases to be accurate over time: the grains of sand wear down, turn into dust, and spill out faster.
Sand for the hourglass was made the best masters. After all, the accuracy of time depended on him. Craftsmen took sea or river sand, sifted it using a sieve, making it homogeneous, washed and dried in the sun. Another sand was made from crushed eggshells. This sand had a beautiful creamy hue. Sand was also made from charcoal (a burnt piece of wood), the coal was pounded just like eggshells. What color is the sand? That's right, black.
The craftsmen made vessels, or flasks, from glass. In those days they could already make glass. And glass, as you know, is also made from sand. The inside of the vessels must be perfectly smooth so that the sand does not linger or get stuck.
Nowadays, hourglasses are rarely used. They are mainly placed for decoration. But they can be found, for example, in sanatoriums, when a nurse counts down the time of a procedure. Where have you seen an hourglass?
It's time to summarize what we learned today:
1. What watches did we talk about today?
2. What is an hourglass made of?
3. How was the sand made?
4. Why should the vessels be smooth?
5. What are the advantages of an hourglass?
6. What are their disadvantages?
7. Where can you find an hourglass now?

Conversation: Water clock

Target: introduce children to different types clocks, namely, with water clocks, their history, purpose
Tasks:
develop cognitive activity and logical thinking;
contribute to the activation and expansion vocabulary children;
consolidate knowledge about time and clocks;
cultivate respect for time;

develop the ability to listen to each other.
Progress of the conversation:
Guys, let's remember what types of watches we already know. Well done! We know what solar is. Remember, we said in passing that there are also water, sand, oil, mechanical, electronic and atomic clocks. Which of them do you think we will talk about today? About the water clock.
The name of this watch speaks for itself. How do they calculate time? That's right, water, liquid. We know that ancient people, like you, are very observant. They did not have all the modern devices that we have now. They relied on their own intuition, some knowledge about nature and its forces, on their experience and were not afraid to make mistakes.
So, someone says that in Egypt, and someone claims that in ancient Babylon One of the temple servants had a leaky clay vessel. The crack was very small, and water began to flow out of it drop by drop. The water dripped slowly. And since the minister had nothing to do that night, he began to observe this process. Finally, morning came and he was called to breakfast. The next night, the servant took the same leaky vessel, filled it with water, placed it on a stool, and placed another vessel on the floor so that the water from the holey one would not flow out onto the floor. And you know what! This man noticed that the water measured a period of time equal to his night service in the temple. This is how the first water clock, a device for measuring time, appeared.
And then the experiments began: the water clock consisted of two vessels described above, and one large bowl with a hole in the bottom, which was suspended, and water flowed out of it drop by drop, also measuring time. And the Chinese actually came up with something - they put the same round bowl with a hole in the bottom in a pool filled with water. A bowl with holes, floating in the pool, filled with water through the hole and sank. Not very practical for measuring time, right?!
But the most interesting and most beloved water clock was the clepsydra.

Clepsydra, translated from ancient Greek, means “water stealer.” The first clepsydra was a simple cylindrical vessel with holes at the bottom and lined with lines indicating the time period. It turned out that at the beginning (when the vessel was filled to the top) more water flowed out in the same period of time than at the end. You probably also could have noticed this when, for example, you filled a bag with water: at first the water starts flowing so quickly, and when there is a little water left in the bag, it barely flows. This happens due to water pressure. Then people thought and thought, and decided to make a clepsydra in the shape of a cone narrowed downward. Then the water clock stopped “lying.” Ancient craftsmen made very beautiful clepsydras. From wood, from clay, even from marble. Decorated them carvings, flowers, birds of paradise were planted on them. Of course, noble people had such water clocks. Special people ensured that new water was poured into the clepsydra on time. This is where the expressions came from: “Time is up” and “Time is fleeting like water.”
Centuries passed, and people were no longer satisfied with water clocks. Why, you ask. Yes, because no matter how beautiful and correctly measured the clepsydra was, there was still an error in measuring time, and it grew with each year of its use. The water clock simply “lied.” People needed new instruments to measure time. People wanted accuracy. And what devices were subsequently invented - we will find out from the following conversations.
So, it's time to share your impressions of what you learned today:
1. What hours were we talking about today?
2. How did the first water clock appear?
3. What does “clepsydra” mean?
4. Which form of clepsydra was the most accurate?
5. Why did people have to make a cone-shaped clepsydra? Why weren't they happy with the cylindrical one?
6. How to understand the expression “Time is up”?
7. Why didn’t people like the clepsydra?

Conversation: Fire and oil clocks

Target: introduce children to different types of clocks, namely, fire and oil clocks, their history, purpose
Tasks:

develop cognitive activity and logical thinking;
promote the activation and expansion of children's vocabulary;
consolidate knowledge about watches;
cultivate respect for time;
develop the ability to analyze, synthesize information, compare, generalize;
develop the ability to listen to each other.
Progress of the conversation:
Guys, guess the riddle:
My head is on fire,
The body melts and burns.
I want to be useful:
There is no lamp - I'll shine it. (Candle)
That's right, it's a candle. What does a candle have to do with it when we are talking about a watch? Now you will find out everything.
On Ancient East, namely in China, fire, or fire clocks, appeared three thousand years ago. The Chinese love everything related to the fire element. They came up with a surprisingly simple design: they took a long bowl with sides, put a candle in it, made uniform cuts on the sides to indicate a period of time, pulled threads through the cuts, on the edges of which there were balls (usually metal or ivory). They lit a candle, the candle slowly burned out, the thread melted, broke, the ball fell onto a metal plate under the bowl and made a noise, thereby signaling that some time had passed. And so on until the candle burns out. Then the spark plug was changed. And ad infinitum.

They could add incense and aromatic oils to this bowl, and they could decorate it with all sorts of figurines and figures. Well, a very beautiful and fragrant invention. And most importantly, it was useful, because ancient people could clearly build their daily routine and navigate time using it.
Fire watches were of different designs. Here, for example, is a cylindrical candle clock: this is a stand (a kind of candlestick) with a metal vertical pin with identical divisions along its entire length. A candle was placed next to the pin (vertically), lit, it burned and indicated the elapsed time. Do you think it's a comfortable design? Yes, it’s convenient, but, in my opinion, the candle burns out quickly. Then people began to invent candles of different compositions, with different wicks, so that the candle would burn as long as possible, because the wax melts very quickly.

This is how the wick clock appeared. A very interesting design: they made a wick (they made it from materials that burn or smolder for a long time, for example, from a mixture of sawdust and tar), twisted it into a spiral in the form of a cone, tied a thread with a familiar ball to each turn of the spiral, hung the spiral on a pin or a hook (like a lantern), under the spiral there was a metal stand. They lit the wick, it smoldered, the thread broke, fell on a metal stand, and made a sound. Same principle as a candle clock. Do you think it's convenient? Quite convenient.
But the craftsmen did not stop. And here, as in the saying: “If you pour oil on the fire, you just add more fire.” Oil clocks were invented. They can just as easily be called fire. And the third name is lamp clock. They took a clay pot and filled it vegetable oil, inserted a wick, set it on fire. There were marks on the pot, the oil burned, burned out, its level showed how much time had passed. Miners took these watches with them - people who worked underground, extracting minerals, ore, for example. Oil clocks consisted not only of an oil vessel, they were also made of glass. Practical. By the way, this is a prototype of the kerosene burners that your great-grandmothers or even grandmothers used not so long ago. Only a kerosene burner was not used to measure time, but was used for lighting when there was no electricity.
All fire and oil hours were good. But they are just unreliable. They were dependent on the wind. Why? That's right, if a strong wind blew (for example, a draft), they went out. It was necessary to constantly monitor the candle or wick. In addition, they “lied” - if there was fresh dry air in the room, the candle burned brightly, the flame played, the clock quickly “burned out”, and if it was damp or there was not enough oxygen, then the candle barely smoldered. Another drawback is that candles, wicks and oil had to be purchased somewhere. It was necessary to buy them in a timely manner. And many people couldn’t afford them. You guys see how inventive the ancient people were!
Let's summarize:
1. Where was the fire clock invented?
2. How did they work?
3. What other fire watch designs do you know?
4. Did the firing clock work quickly or slowly?
5. What did people do to make their fire watches last as long as possible?
6. What is an oil clock?
7. Who used them?
8. Why are fire watches convenient?
9. What are the disadvantages of fire and oil clocks?

Conversation: Mechanical watches

Target: introduce children to different types of watches, namely, mechanical watches, their history, purpose
Tasks:
Form an idea of ​​​​defining time;
develop cognitive activity and logical thinking;
promote the activation and expansion of children's vocabulary;
consolidate knowledge about watches;
cultivate respect for time;
develop the ability to analyze, synthesize information, compare, generalize;
develop the ability to listen to each other.
Progress of the conversation:
Mechanical watches. What is it? A watch, of course, is a device for measuring time. What about mechanical ones? That's right, from the word “mechanism” - a device, the internal structure of something. Who invented the first mechanical watch is a mystery. Some claim that these are the inventive Chinese, others say that they are the French. Let's not guess. Why do you think mechanical watches were invented? After all, people have already invented so many watches. Right! At all times, people wanted accuracy. And so that these same clocks do not depend on external forces - from the Sun, from fire, from oil or a candle.
If any of you with your parents or grandparents took apart the watch, you probably saw that there was a lot of...what inside? Gear wheels. One wheel clings to another, another to a third, and even two or three wheels can cling to one wheel at once. And they, in turn, move the hands of the clock. Amazing, isn't it?!
The design of the first mechanical watches was simple.

The rope was wound around a shaft (can be compared to a reel and threads), and a weight was tied. The weight on the rope was lowered and moved the arrows using gears. The number of teeth on the wheels was calculated so that a full circle of the hour wheel measured one hour of time. When the rope unwound, the weight had to be lifted upward. Let me also add that the first mechanical watches did not have a minute hand (and especially a second hand). And such clocks were installed on towers, in town halls, and chapels. They were huge.
Then people invented the pendulum - an oscillating system. The pendulum moves back and forth and its movement is constant. It was introduced into the clock mechanism. And this helped people measure time even more accurately. After all, the movements of the pendulum are the same, unlike the rope, which could become thinner from constant friction.
Mechanical watches were refined over five centuries until they reached us in the form in which we are accustomed to seeing them. Spirals, a dial, a cuckoo, and a chime were added to them. And some clocks showed a whole performance when they struck a certain hour, for example 8 pm.
For convenience, people also came up with small mechanical pocket watches so that they could take them with them everywhere. Then resourceful masters attach to them leather straps. This is how they appeared wrist watch, allowing you to instantly see what time it is. Mechanical watches were decorated with various figures, painted with patterns, and made of precious metal. They have become a luxury item, a desired gift, especially for men.
But the most important thing is their function. Mechanical watches made it possible to determine time very accurately, with virtually no errors; they did not depend on natural factors. This is why they were valued for so long. And they still appreciate it.
It's time to sum up:
1. What is a “mechanism”?
2. Let's remember the design of the first watch? (Tale from the picture)
3. Who invented the first mechanical watch?
4. What is a pendulum?
5. What is the advantage of mechanical watches?

Conversation: Electric and electronic clocks

Target: introduce children to different types of watches, namely, electric and electronic watches, their history, purpose
Tasks:
Form an idea of ​​​​defining time;
develop cognitive activity and logical thinking;
promote the activation and expansion of children's vocabulary;
consolidate knowledge about watches;
cultivate respect for time;
develop the ability to analyze, synthesize information, compare, generalize;
develop the ability to listen to each other.
Progress of the conversation:
Today we will talk about electric and electronic watches, which are considered one of the most accurate and most reliable. At the end of the last century, they almost completely replaced mechanical watches from our lives.
It all started a hundred years ago, when electricity appeared, and when this same electricity began to be used for various purposes and needs. The Englishman conducted experiments with pendulums, electromagnets and ordinary mechanical watches. The pendulum swung, coming into contact with special electromagnets, a current was formed, which provided energy for the movement of the hands. These watches did not require constant winding like mechanical ones. And the most important thing is that there was no error in time (well, or quite insignificant, the clock “lied” by only 1 second per year). Electric clocks were very popular and respected by professors and scientists.

But in the middle of the last century in France they came up with the kind of watch that we all use - electronic. The pendulum and electromagnet of an electric clock were replaced by an electrical power element - an accumulator or battery. And the familiar dial was replaced by an electronic display, on which electronic numbers glowed. In addition, engineers began to invent electronic watches with a calculator, an alarm clock (now, of course, this does not surprise us, but before it was an unheard-of miracle of technology), and even a built-in minicomputer. Gradually, electronic clocks and electronic alarm clocks began to be built into various household appliances and devices, which made it possible to control them when a certain time came. Electronic watches have become an indispensable element of such devices as a TV, VCR, computer, cell phone, etc., etc. Today we are accustomed to electronic watches and do not even remember that there is something else for determining time.
Let's summarize:
1. Are electronic and electric watches the same thing?
2. What was the most important thing about an electric clock?
3. What is important in electronics?
4. Where do we find electronic watches?
5. How did they conquer us?

Conversation: Atomic clocks

Target: introduce children to different types of clocks, namely, atomic clocks, their history, purpose
Tasks:
Form an idea of ​​​​defining time;
develop cognitive activity and logical thinking;
promote the activation and expansion of children's vocabulary;
consolidate knowledge about watches;
cultivate respect for time;
develop the ability to analyze, synthesize information, compare, generalize;
develop the ability to listen to each other.
Progress of the conversation:
We have already talked about almost the most accurate watches - electronic ones. But why are they “almost” accurate? Yes, because there is, well, the most accurate clock - this is an atomic clock. An atom is the smallest particle that exists on earth. Everything in the world consists of it. People recently learned to use the energy of the atom. Just imagine that we are playing the game “Bear in the Forest”, you are running away from the bear, what is happening? Everyone is running without looking back! How much Energy do you have? A lot of! In the same way, nuclear energy is powerful energy. And inexhaustible. It can serve humanity for millions of years. But provided that it is used correctly and peacefully.
So, let's get back to our watch. I can’t tell you what an atomic clock is made of, it’s very complicated. Only nuclear physicists can tell us this secret. If any of you become a nuclear physicist in the future, please come to kindergarten and tell the children about the most accurate clock in the world!
The first atomic clocks were too bulky and were not widely used. But the scientists did not sleep; with the help of experiments, they created a clock based on cesium atoms. It's such chemical element. Immediately after the creation of the atomic clock, people all over the Earth decided to switch to the atomic time standard.
The time has come to discover the great secrets of humanity. I’ll tell you a secret that there is a Laboratory of Time Keepers in the world. What do you think they do in it? Do they keep time? Right. Why store it? Is it going to go somewhere? One more secret will have to be revealed: our planet Earth, as you know, rotates around its axis and around the Sun. The Earth's rotation is slowing down and the magnitude of this slowdown is not constant. The Earth currently rotates at a rate of about 2 milliseconds per 100 years. This greatly complicates the work of astronomers and time keepers, who make some special calculations known only to them, and these calculations may turn out to be incorrect even due to a slight error in time.
Today, with the help of atomic clocks, Coordinated Universal Time is used as a time scale. It is formed by the International Bureau of Weights and Measures by combining data from time storage laboratories of various countries, as well as data from the International Earth Rotation Service.
So we say that atomic time is so precise. Why don’t we still use it in everyday life? This is because atomic energy has not yet been used for domestic purposes; the technology for obtaining it is very complex. And it costs a lot. Plus, as I said, atomic clocks are huge.

While scientists from different countries there is something to work on. And I think that in the near future we will be able to use atomic clocks in the same way as any mechanical and electronic ones.
So, let's see how easily you remembered the information from our conversation:
1. What does an atom give?
2. What are they – the first atomic clocks?
3. Who invented the atomic clock?
4. Is the atomic clock mechanism complicated?
5. Does anyone keep track of Time in the world?
6. Why do you need to keep track of time?
7. Why don’t you and I still have atomic clocks at home?

(I used images from the Google search engine)

Class hour "Price of a minute"

Goals:

1. Expanding the horizons of students.

2. Fostering respect for time.

Presenter (teacher). Hello, dear guys. Today we will talk about time. We will learn what time is, why it is needed and how to use it, and also talk about the history of the creation of watches, their types and operating principles

Who knows how to live by the clock?

And appreciates every hour,

This is not necessary in the morning

Wake up 10 times

And he won't talk

Why is he too lazy to get up?

Do exercises, wash hands

And make the bed.

Will he have time to get dressed on time?

Wash and eat

And before the bell rings

Sit at a desk at school.

The watch is not for show.

The clock dictates time to us.

Dictate like this:

Tick ​​tock, tick tock.

1stSTUDENT.

Time is precious to man, and he determines time by the clock. At different times, the appearance of the watch was different. There are some expressions associated with the workings of clocks. For example, they say: “A lot of water has passed under the bridge since then,” and we understand that a lot of time has passed. And they say this because in ancient times there were water clocks. They were arranged in the form of two communicating vessels. Time was recognized by how much water flowed from one vessel to another. The sand clock is also constructed similarly to a water clock, where sand was poured from the upper vessel into the lower vessel. In Rus', such watches were called flasks, because were made of glass.

Later, mechanical watches appeared. They are different for us. Time is sometimes determined by the striking of the clock. This is where the expression “beaten hour” comes from.

Teacher.

On October 2, 1918, the main clock of our country began to speak - the Kremlin chimes. Every hour the clock strikes solemnly and majestically. And there is no person who would not know the melodic and exciting chimes located on the Spasskaya Tower of the Kremlin.

(listening to a recording of the chimes)

The clock speaks about time, and you cannot stop time, just as you cannot kill it, i.e. carry out without benefit. Our task: to develop a sense of time, the ability to use every hour, every minute wisely, for business. A working minute is a small period of time, but minutes add up to hours, days, years.

2nd student.

The work of the clock does not stop for a second, time flows continuously. Place your palms on your chest. You feel your heart beating and working. It works all our lives, without stopping, it works and drives blood so that each of us is ready to do something useful every minute. Let's sit silently for a minute. See how long a minute is. What do they do in our country in a minute?

3rd student.

It looks like an ordinary box

But - a real wizard,

The whole Universe lives in it,

At least it's an ordinary thing.

He will tell you a hundred stories,

He will invite you to the circus for an hour

Movies will show you -

Each of you has

(TV)

Factories produce 13 TVs in one minute

4th student

Admire, look!

North Pole inside,

Snow and ice sparkle there,

Winter itself lives there.

Forever this winter for us

Brought from the store.

(fridge)

The refrigerator is a human assistant. Every minute 11 new refrigerators are produced in the country

5th student.

So that I can take you

I don't need oats

Feed me gasoline

Give me some rubber for my hooves,

And, raising a whirlwind of dust,

Runs... (car)

Our factories produce different cars - trucks, cars, large, small. Almost four new cars roll off the production lines every minute.

1st student.

Do you want to sail the oceans?

Descend into the depths

Visit many countries

And rush to the moon,

Be a brave explorer

In the thickets of centuries -

All edges are open to you

On the pages of books.

The book is printed so quickly that you have to count by seconds. Every second, 45 copies of books are published in our country, and 7-8 of them are intended for you guys. How many books do you publish per minute?

Let's count: 7*60=420 books (just for you guys), and in total:

45*60=2700(books)

2700 is a library!

2nd student.

Every minute, 1,560 pairs of shoes leave the assembly lines of our country. What a moment!

3rd student.

What about hours? Fun alarm clocks, important wall clocks, small hand clocks and everything in between! Factories make 77 pieces every minute

And if suddenly all the plants and factories in the country stopped working for one minute, the state would lose 50 million rubles. That's how much a minute costs.

What can we do in a minute?

A competition is held, for example, reading (words per minute), solving examples (write only answers

2nd student.

The clock is counting the seconds

They are counting the minutes.

The watch won't let you down

Who saves time?

Hour after hour, year after year -

The clock is always moving forward.

Everything must be done on time

Then you will be satisfied yourself.

Friendship with a clock is good,

Work, rest,

Do your homework slowly

And don't forget the books!

So that in the evening, when you go to bed,

When the time comes,

You could confidently say:

It was a good day! (S. Baruzdin)

3rd student.

The minute is rushing by.

The minute is short

But in a minute you can

Find a star, a beetle,

The solution of the problem….

And a rare mineral

which is still

Nobody opened it.

Open in a minute

Rockets from Earth.

But to go into deep space

They could fly

Scientists gave

Dozens of years of work

And since childhood, astronauts

We dreamed of flying.

Even if the minute is short,

Let it run very fast!

Big, bold dream

It can fit in it!

4th student

We know: time is extensible.

It depends on

What kind of content

You fill it up.

There are times when he has stagnation,

And sometimes it flows

Unloaded, empty,

Counting hours and days in vain.

Let the intervals be uniform,

What separates our days,

And putting them on the scales,

We find long moments

And very short hours.

Let's remember folk proverbs and sayings about time

(Studentscalled their)

You must be able to value your time and the time of others. A good rule to remember is:

When starting any business, learn to calculate the time: how much of it will be spent on lessons, how much on activities in clubs, on helping parents, on walks, etc.

Organize your day

Go to bed early and get up early

Do exercises in the morning

Don’t learn your lessons right away when you get home from school, but after an hour or two

After school, relax in the fresh air

Do your homework during the day

Don't study late in the evening, because... the brain is already tired

Make your homework harder first

Attend a section, circle

Help your parents with housework.

Target.

1. Reinforce pre-studied mathematics material.
2. Expand children's knowledge about time, cultivate a caring attitude towards time.

Tasks:

1. Strengthening computational skills, knowledge of multiplication tables, the ability to solve problems using the action of multiplication.
2. Formation of ideas about time, units of its measurement, systematization of individual relationships between measures of time.
3. Development of attention, thinking, general culture.

Equipment:

• computer,
• multimedia projector,
• presentations by teacher and students in Microsoft PowerPoint,
• booklet – presentation “Daily Routine” in Microsoft Publisher,
• tasks on cards for working in pairs and groups,
• watch model,
• hourglass.

During the classes

Now we will conduct a mathematical dictation. Presentation . Slides 8 – 14

1. Write the number that is between the numbers 879 and 881.
2. To 8 hundreds add 4 units.
3. Write a number that consists of 6 tens and 3 ones.
4. Increase the number 140 by 7.
5. Dividend 72, divisor 8, find the quotient.
6. The first term is 780, the second term is 2. What is the sum of these numbers?
7. What is the dividend equal to if the divisor is 7 and the quotient is 8?

Let's check the completed task: 880. 804, 63, 147, 9, 782, 56. Presentation. Slide 15.

Now arrange these numbers in ascending order. Presentation . Slide 16.

Let's check what is written: 9. 56, 63, 147, 782, 804, 880. Presentation. Slide 17.

Work on the topic of the lesson.

Now listen to the riddle:

1. It has no legs or wings, Slide 18.
   He flies fast, you won't catch him. (Time) Slide 19.

Let's return to the proverbs. Name the units of time that are mentioned in them.

(Minute, hour, century, day.)

Guys, what other units of measurement do you know? (Children list familiar units of measurement.)

Raise your hand, who can put them in order of increasing size?

Then let's work together.

(I invite 7 people to the board and hand out cards with the names of units of measurement: minute, month, second, day, year, week, hour).

Your task: position yourself so that the units of time written on your cards are arranged in increasing order.

Guys, do you agree? Say all the units of measurement in unison.

Second, Minute, Hour, Day, Week, Month, Year. Second. Presentation . Slide 20.

Let's focus on the units of time – days. Presentation . Slide 21.

What do you remember about this unit of measurement? (A day is 24 hours.)

Many children, and sometimes adults, make mistakes when they use the word day with any number.

Do you know how to pronounce them correctly? Then I suggest working in pairs .

On your desks you have pieces of paper with the numbers 1, 2, 5, 30. Next to the numbers, write the word “day” the way you think it should be pronounced.

Let's check (presentation. Slide 22):

• One day.
• Two days
• Five days
• Thirty days

A game.

- Now let's check how you have mastered the multiplication table. Before you are sheets and a table of Pythagoras. In the examples, the key to solving the mystery is encrypted in the form of a picture. You must find the factors in the table, calculate the product, enter it in the cell and color it. At the end of the game you will see a secret image. Be careful: the 1st multiplier is always in the left column, and the second in the top cell. Slide 23.

9 * 5		5 * 1		8 * 7		3 * 9
7 * 9		2 * 7		8 * 3		5 * 5
7 * 1		1 * 5		5 * 9		3 * 1		3 * 5
2 * 5		2 * 3		5 * 4		4 * 5		5 * 3

Let's check what pattern you got: Presentation. Slide 24.

Name five days in a row, without using the names of the numbers of the month and without naming the days of the week. Presentation . Slide 25.

Let's check: The day before yesterday, yesterday, today, tomorrow, the day after tomorrow. Presentation . Slide 26.

Physical education minute. Presentation . Slide 27.

Tick ​​- tock! Tick ​​- tock!
The clock goes like this!
To the left - step! To the right - step!
Tick ​​tock! Tick ​​- tock!

Task 2. Slide 28.

(16 hours)

Task 3.

Place comparison signs instead of asterisks so that you get true equalities. Presentation . Slide 29.

The solution of the problem. Presentation . Slide 30.

A second grader read 8 pages every day. How many pages did he read in 5 days?

Geometric material.

1) What shapes do you see in this picture? Presentation . Slide 31.

How many are there?

2) Draw a square with a side of 4 cm. Draw a line to get a quadrilateral and a triangle. Presentation . Slide 32.

Let's check: Presentation. Slide 33.

Reinforcing the material covered.

1. Which line contains only time units? Presentation . Slide 34.

a) cm, km, kg, m.
b) km, m, dm, mm.
c) hour, day, minute, month

2. Complete the phrases: Slide 35.

• In a year... months.
• In a year... days.
• In the year...winter months:...,...,....
• In the year... spring months:...,...,....
• In the year ... summer months: ..., ..., ... .
• In the year ... autumn months: ..., ..., ....
• ... the year ends, and ... begins.
• In a month... weeks.
• In a week... days.
• The shortest month of the year is….

3. A story about a watch.

1) Guessing the riddle: Slide 36.

No legs, but I walk, no mouth, but I’ll say,
When to sleep, when to get up,
When to start work. (Watch)

2) Task: Slide 37.

How many hours are shown here? (16 hours)

3) Familiarization with the types of clocks: sand, water, solar. Slide 38.

4) View the presentation “The History of Watches”, made by student Egor Kruglov.

5) Information about the watch.

6) View the presentation “My daily routine”, made by Ilyina Angela.

7) Conversation about careful attitude In time.

Guys, follow a daily routine, learn to live by the hour.

8) Distributing “Daily Routine” booklets to students.

Lesson summary.

1) Conversation.

Which task did you like the most?

What new did you learn in the lesson? What new things have you learned?

2) Guess the riddles:

1. What cannot be returned? (Time) Presentation . Slide 45

What can at the same time:
stand and walk;
hang and stand
walk and lie down?
(Watch)

Two sisters next to each other
They run lap after lap:
Shorty - just once
The one above is every hour.
(Clock hands) Presentation . Slide 46

Twelve young men came out,
Fifty-two falcons carried out
365 swans were released.
(months, weeks, days) Presentation . Slide 47.