What does the proverb mean, an estimate is more expensive than wealth. Master class "gold placers"

It's not enough to have a good mind

the main thing is to use it well

R. Descartes

Solving problems on the topic "Strength".

The purpose of the lesson:

Summarize the knowledge gained in the study of the topic "Strength", teach students to apply theoretical knowledge when solving problems.

Lesson objectives:

Educational:

    To develop the skills and abilities of students in solving physical problems of non-standard formulation.

    To form a holistic system of knowledge on the topic studied.

Developing:

    To improve the intellectual abilities and mental skills of students, the communicative properties of speech.

    Develop the ability to apply theoretical knowledge to solve problems; draw conclusions.

    Continue to work on the development of skills to model the situation.

Educational:

    To continue work on the formation of a conscientious attitude towards educational work among students; communication skills, aesthetic perception of the world.

    Develop a culture of communication and a culture of answering questions; functions of communication in the classroom as a condition for ensuring mutual understanding, motivation for action.

    Fostering a sense of camaraderie.

Lesson type: lesson consolidation

Methods: problematic, critical thinking

During the classes

1. Organizing time+ motivation

Hello guys, I'm glad to see you. Today we have a problem solving lesson on the topic "Strength". And to start work, we must greet each other and we will do it like this

Exercise "Hello friend!"

A task: greet each other.

Hello my friend! - They greet each other by the hand.

How are you here! - They pat each other on the shoulder.

Where have you been? - They pull on each other's ears.

I missed! - Put your hands on your heart.

You came! - Raise your arms to the sides.

Good! - Embrace.

2. Updating knowledge

Reception "Fishbone" (fish skeleton)

The head is the question of the topic, the left bones are the basic concepts of the topic, the right bones are the essence of the concept, the tail is the answer to the question.

head is power

designation - F

definition - measure of the interaction of bodies

Unit of measurement -H

What is the name of the device for measuring force? - dynamometer

What forces do you know - gravity, elastic force, friction force

The division into groups according to the principle " geometric figures- square, triangle, circle)

III . Compiling a cluster

Group I - elastic force (square)

Group II - gravity (triangle)

Group III - friction force (circle)

What force is called the force of gravity, where is it directed - the force with which the Earth attracts bodies to itself, the force is directed - vertically down

When does the force of elasticity arise? Where is she headed? - The elastic force arises in the body as a result of its deformation and strives to return it to its original position

What is friction force? - The force arising from the contact of one body with another, preventing their relative movement

IV . Solving quality problems

Each group receives three sheets of paper illustrating the situation. Your task in the group is to identify the problem, analyze the search for ways out.

    Which is more profitable: rolling or sliding?

    answer: Which is better - sliding or rolling? Of course, rolling is more profitable than sliding. To keep rolling, you need to apply much less force than to keep sliding at the same speed. Therefore, it is clear that in the summer they ride in a cart, and not in a sleigh.

    But why do the wheels give way to skids in winter?

Answer: The thing is that wheels are more profitable than skids only when they roll. And in order for the wheels to roll, there must be a solid, smooth road under them, and also non-slip.

    What force keeps a chandelier suspended from the ceiling from falling to the floor?

Answer: elastic force

    Explain the proverb: "Mow, scythe, while the dew, down with the dew - and we are home"

Answer: dew is a lubricant and it reduces friction.

    What fairy tale, known since childhood, speaks of the addition of forces acting in one straight line?

Answer: a fairy tale about a turnip

    Why are the bows rubbed with rosin when playing the violin?

Answer: To increase friction

    What force causes the tides to ebb and flow in the seas and oceans on Earth?

Answer: the gravitational force acting from the side of the Moon and the Sun on the water of the seas and oceans.

    Baron Munchausen, the hero of the famous story by R.E. Raspe, "tying" the end of the rope to the moon, descended along it to the earth. What is the main physical absurdity of such movement?

Answer: the hero of the story could not slide along the rope to the Earth in any way, this would be prevented by the force of his attraction to the Moon.

    Why, when lowering a cart down a steep mountain, sometimes one wheel is tied with a rope so that it does not rotate?

Answer: to increase the force of friction

Physical break. (Motivation: To feel comfortable in this world, a person must love himself. But by "love yourself" - a reasonable person means: "take care of your health." I offer you some exercises to relieve fatigue. For people involved in mental activity, this set of exercises helps to increase efficiency, music sounds. Transition by hyperlink to the melody for the physical education minute).

V . Solving computational problems by levels of complexity

Solve these problems, after receiving the answer, insert the letter next to the task in this table. As a result of the correct solution of problems, you can read the name of an English scientist. (answer: Newton)

I group

    Two forces of 400 N and 600 N act on the body, directed along one straight line in opposite directions. Determine the resultant of forces. (answer: R = 200 N)

    What force of gravity acts on a hare if its mass is 6 kg.

    The force of gravity acting on the moped is 390 N. What is the mass of the moped?

    Rigidity of rubber band 7.2 10 4 N/m. How long will the rope stretch if a force of 10 kN acts on it?

    The mass of the machine together with the load is 7 tons, its engine develops a traction force of 35 kN. Find the coefficient of friction between the driving wheels of the car and the road (assume that the car is moving evenly).

    5 liters of kerosene are poured into a 1 kg can. What force must be applied to lift the can? (ρ gasoline \u003d 800 kg / m 3)

II Group

    Two forces of 300 N and 500 N act on the body, directed along one straight line in one direction. Determine the resultant of forces. (answer: R = 800 N)

    The mass of the cast-iron pole is 200 kg. Calculate the force of gravity acting on the column.

    Determine the stiffness of the dynamometer spring if, under the action of a force of 80 N, it lengthens by 5 cm.

    A hockey player with a mass of 65 kg moves uniformly on ice on skates. Friction coefficient 0.02. Determine the force of friction between the skates and the ice.

    With what force is the spring stretched, to which a brass bar measuring 10x8x5 cm is hung? (ρ brass = 8500 kg / m 3)

    Under the action of a force of 320 N, the shock absorber spring was compressed by 9 mm. How many millimeters will the spring compress under a load of 1.6 kN?

III group

    Three forces are directed in one straight line: to the left 16 N and 2 N, to the right 20 N. Find the modulus of the resultant of these forces and its direction.

    What is the maximum force that occurs when two cars collide if the buffer springs are compressed by 4 cm? Spring stiffness 8000 N/m.

    The force of gravity acting on the body is 10 kN. What is the body weight? (answer: 1 ton)

    With uniform movement on the table of a wooden board with a weight of 2 kg, the dynamometer shows a force of 9 N. Determine the coefficient of friction of the board on the table.

    A force of 12 N compresses a steel spring by 7.5 cm. What force must be applied to compress this spring by 2.5 cm? (Answer: 4 N)

    A thin spiral spring, for which Hooke's law is valid, suspended vertically on a fixed support, is stretched by a force of 160 N by 72 mm. An additional force of 120 N was applied to the spring. Determine the elongation of the spiral.

VI . cinquain is not an ordinary poem, but a poem written in accordance with

Line 1 - the name of the syncwine, expressed in the form of a noun.
Line 2 - two adjectives.
Line 3 - three verbs.
Line 4 - a phrase that carries a certain meaning on the topic of syncwine.
Line 5 - conclusion, one word, noun.(association with the first word).

I group (Strength of elasticity)

Strength

Elastic, deforming

Compresses, stretches, bends, twists

Occurs when the body is deformed

Hooke's law

II group (Gravity)

Strength

world famous

Attracts, acts, changes

The body is attracted to the earth

Newton's law

IIIgroup (Friction force)

Strength

sliding, rough

Moves, hinders, presses

arising from the contact of one body with another

dynamometer

VII . Evaluation

Evaluation paper

F.I.

Discussion

Activity

Performance

Answers on questions

A task I level (1 point)

A task II level (2 points)

A task III level (3 points)

Total points

Student grade

Teacher evaluation

Shading: from 11 - 5

7-10 – 4

3-6 – 3

0-2 – 2

Criteria: excellent - 3 points

good - 2 points

satisfactory - 1 point

unsatisfactory - 0 points

VIII . Homework assignment.

Write a test based on what you have learned

Game - goodbye

A task: say goodbye to each other, leave class with a positive attitude.

Instruction:

Participants of the training, standing in a circle, must pay for the first, second. The first numbers stand in the outer circle, the second - in the inner one and turn to face each other, performing the following actions:

Dear friend! - They greet each other by the hand.

It's nice to be with you! - They pat each other on the shoulder.

But we must go. - They pull on each other's ears.

I'll miss! - Put your hands on your heart.

But will we meet? - Raise your arms to the sides.

Good! - Embrace.

Bye! - They wave their hands to each other.




What is critical thinking? First, critical thinking is independent thinking. Is it always individual? First, critical thinking is independent thinking. Is it always individual? Secondly, the process of cognition, thanks to critical thinking, becomes meaningful, continuous and productive. Secondly, the process of cognition, thanks to critical thinking, becomes meaningful, continuous and productive. Third, critical thinking begins with asking a question and clarifying the problems to be solved. Third, critical thinking begins with asking a question and clarifying the problems to be solved. Fourth, critical thinking seeks persuasive reasoning. Fourth, critical thinking seeks persuasive reasoning. Fifth, critical thinking is social thinking. Fifth, critical thinking is social thinking.


Reception "writing syncwine". Translated from French, "cinquain" means a poem consisting of five lines, which is written according to certain rules. Translated from French, "cinquain" means a poem consisting of five lines, which is written according to certain rules.


The order of writing syncwine: 1 line - one keyword A that defines the topic. 1 line - one keyword that defines the topic. Line 2 - two adjectives that reveal the topic. Line 2 - two adjectives that reveal the topic. 3 line three verbs describing actions related to the topic. 3 line three verbs describing actions related to the topic. Line 4 - a whole phrase, a sentence consisting of several words, with the help of which the student expresses his attitude to the topic. Line 4 - a whole phrase, a sentence consisting of several words, with the help of which the student expresses his attitude to the topic. Line 5 is a word - a summary that expresses a personal attitude to the topic. Line 5 is a word - a summary that expresses a personal attitude to the topic.


Sinkwines on the topic "Forces in Nature", created by students of the 7th grade. Force of friction Force of friction Useful and harmful Useful and harmful Swinging, sliding and rubbing Swinging, sliding and rubbing Helps and harms in life Helps and harms in life Affects everything. Works on everything.





Sinkwine in physics lessons

Everyone shouldn't know this.

but it's so interesting!

The use of modern educational technologies is a necessary condition for achieving a new quality of education. State educational standard in physics involves the mastery of a number of research, design, information and communication skills by students, therefore, in the practice of my work, I actively use elements of technology for the development of critical thinking, information and design technologies.

In his pedagogical activity I am working on the formation of critical thinking in physics lessons in the context of the transition to the new Federal State Educational Standards LLC.

Critical thinking is an intellectually organized process aimed at vigorous activity on understanding, applying, analyzing, summarizing or evaluating information received or created through observation, experience, reflection, reasoning or communication as a guide to action or the formation of a belief” (National Council for the Development of Critical Thinking, USA).

Critical thinking is one of the innovative ways to unlock the spiritual potential of a person, as well as a special moral activity, which consists in spiritual introspection as a way of relating to life, in the fight against one’s own shortcomings and overcoming doubts about one’s own strengths and capabilities (D. Kluster “What is critical thinking ?"). The American scientist M. Scriven calls critical thinking as an educational value "along with the ability to read and write."

The theory of the development of critical thinking by S. A. Terno is based on an idealized object - a model of critical thinking. According to the system approach, the designed model reflects the properties, composition, function and genesis of critical thinking.

The development of critical thinking helps the student learn to learn, and not absorb ready-made knowledge. In physics lessons I use such methods of developing critical thinking as “I believe - I don’t believe”, clusters, syncwine.

Sincwine:

    this is a five-line poetic form that arose in the United States in the early 20th century under the influence of Japanese poetry;

    it is a technique for developing critical thinking through reading and writing.

Writing cinquain is a form free creativity, which requires the author to be able to find the most significant elements in the information material, draw conclusions and briefly formulate them. The relative simplicity of building a syncwine allows you to quickly get the result. This work requires thoughtful reflection based on a rich conceptual stock, as well as a developed figurative thinking. The method is effective both when working with lagging behind, and when working with gifted children. Every child has a real opportunity to become successful, to feel the joy of the learning process. And this is the most important thing in our work.

In the methodology, cinquain is a fast, effective tool for the analysis, synthesis and generalization of concepts and information. It teaches you to use concepts meaningfully and determine your attitude to the problem under consideration, using only five lines. The child, on the basis of large amounts of information, developing his ability to analyze, composes a relatively small text. The compilation of this text requires relatively little time, although it has a rigid framework in the form of presentation.

    1 line- the theme of syncwine, contains one word (usually a noun or pronoun), which denotes the object or subject that will be discussed.

    2 line-two words (most often adjectives or participles), they give a description of the signs and properties of the object or object selected in the syncwine.

    3 line- formed by three verbs or gerunds describing the characteristic properties of the object.

    4 line- a four-word phrase expressing the personal attitude of the author of the syncwine to the described object or object.

    line 5- one word-summary characterizing the essence of the subject or object.

From the point of view of pedagogy, the procedure for compiling a syncwine allows you to harmoniously combine the elements of all three main educational campaigns: informational, activity-oriented and student-oriented.

How do I use it in my practice?

Firstly, you can compose a text both at school, in the classroom, and at home, as homework. Children can perform it as an individual task or as an addition to the main one.

Physics.

Necessary, interesting.

Explores, develops, helps to think.

Physics is the science of nature.

Chikinov Ilya, 7A

Temperature.

measurable, dependent.

It goes up, it goes down, it changes.

The degree of body heat.

Value.

Kozlov Alexander, 8A

Lens

convex, concave

Collects, disperses, refracts

Used in optical instruments

Daria Abramova, 11th grade

Secondly, you can work on compiling a syncwine both independently and in pairs and even in a group. Having considered any theoretical material in the lesson, I propose, as a reflection, to compose a syncwine together. If students with different abilities are in a pair (and this usually happens), then a stronger student, using the feasible support of the second, analyzes what has been learned. More difficult is group work. Here except intellectual abilities The child must also show communicative skills.

Molecule.

Small, mobile.

Moves, attracts, repels.

A molecule is what a substance is made of.

Izotova Rimma, Semenov Ilya, 8B

Thirdly, this technique can be used both for analysis narrow concept(for example, when considering the concept of "Manometer"), and when studying a sufficiently voluminous material. Having studied such difficult topic as the laws of conservation and transformation of energy, I give such a task as a creative one.

Pressure gauge.

Liquid, metal.

Measures and clarifies.

Manometer - for measuring pressure.

Tikhonova Anna, 7B

The law of conservation and transformation of energy.

Necessary, useful.

Transformed, preserved, not changed.

Energy is transformed from one form to another.

One of the basic laws of nature.

Izotova Rimma, 8V

Fourthly, you can come up with a huge number of ways to work with a finished syncwine. For example, you can compose short story on a given topic, using a cinquain prepared at home as a hint. It is possible, using all your knowledge on the topic, to make a correction and improve the text created by a friend, or the text with deliberately planned mistakes made. Finally, you can learn to determine the theme of syncwine with a missing part, for example, without the first line.

(Internal combustion engine).

Widespread, thermal.

Lets in, compresses, works, releases.

Converts internal energy into mechanical energy.

(thermal motion).

Messy, changeable.

They oscillate, they move, they accelerate.

The temperature depends on the speed.

The movement of molecules.

(Voltage).

Variable, constant.

Changes, measures, characterizes.

Charge transfer work.

Potential difference.

I actively use the writing of syncwines already in the 5th grade (I teach the course "Introduction to natural science subjects"). During the study of the topic “Pressure of solids, liquids and gases”, students at each lesson received a cinquain on the topic of the lesson as their homework.

Pressure.

High, low.

Change, measure, calculate.

The action of a force on a support.

Physical quantity.

Strativnaya Alena, 5B

Pascal's law.

Necessary, important.

Explains, shows, works.

The pressure is the same in all directions.

Hydraulic Press.

Parshina Anastasia, 5A

After studying the topic, they performed creative project: “Sinkwines on the topic“ Pressure ”to arrange in the form of a book - baby.


Within the framework of the city seminar, I conducted together with the teacher of the Russian language Rubtsova L.G. master class "Sinquain at physics lessons".

I use cinquain not only in the classroom, but also in extracurricular activities. For example, the lesson "Learning to write syncwine" in the 6th grade, where I am the class teacher:

Energetic, kind.

Learn, play, participate.

The team of people.

Ilyinsky Nikita

Daddy.

Smart, hardworking.

Loves, cares, swears.

Dad can do anything.

Family man.

Martynova Sofia

Stone, wooden.

It stands, protects, protects.

The house is a comfortable home.

Byzova Ekaterina

Classroom hour on the topic "Who am I? What am I? ”, As a result of which 6th grade students wrote syncwines about themselves:

Nikita

Kind, active.

I learn, I develop, I walk.

I like myself.

Elmail

Kind, friendly.

Friends, worries, jumps.

Wants to know a lot.

Smart, beautiful.

Study, sing, dance.

Anya is the class leader.

Girlfriend.

Event, dedicated to the Day mothers:

Mother.

Beautiful, kind.

Feeds, clothes, loves.

Mother's hands are warm.

Ozhiganova Anna

Mother.

Kind, cheerful.

Protects, helps, cares.

Mom is my favorite.

Parent.

Obotnin Vasily

Mother.

Smart, kind.

Cooking, cleaning, helping.

Mom is the best adviser.

Yumatova Marina

Parent meeting on the topic "My family":

A family.

Happy, responsible.

We play, we play, we live.

It's fun to walk together.

Kondratieva Svetlana Yurievna

A family.

Friendly, strong.

Support, help, inspire.

I, you, he, she - together Friendly family.

Novikova Natalya Vladimirovna

A family.

Friendly, athletic.

We have fun, we help, we rejoice.

Together we can do everything.

Obotnin Alexey Anatolievich

Sections: Primary School

Lesson of Russian literature in the 2nd grade

1. Introduce one of the types of fairy tales - a household fairy tale.

2. Instill an interest in reading.

3. Work on the expressiveness of reading.

4. Develop speech, replenish vocabulary.

Type of lesson: a lesson of primary study and consolidation of new knowledge.

During the classes:

I. Organizational moment.

II. Working on reading skills:

  • independent reading;
  • reading tongue twister;
  • expressive reading to a neighbor.

1. - What topic are we studying?(Folklore)

Name the genres of oral folk art (folk songs, fun, riddles,

proverbs, fairy tales, tongue twisters, ditties, jokes)

Give examples.

dramatization(2 students participate)

- Grandma, tell me a story.

What fairy tale do you want, granddaughter?

Grandma, are fairy tales different?

And how would you answer this question? (On the board - a diagram-support)

I'm sure you all love fairy tales. What is it about them that attracts you?

“A fairy tale is a lie and a hint in it - a lesson for good fellows!” (On the desk)

What can a fairy tale teach?

(A fairy tale teaches goodness and justice. It teaches you to understand someone else's misfortune, always come to the rescue)

2. Let's check how you know fairy tales.

  1. What is the name of the apparatus on which Baba Yaga flies?
  2. Who fished with his tail?
  3. Who said these words: “The fox carries me beyond the dark forests, beyond high mountains, to the far reaches”?
  4. It did not lie on the window, rolled along the path.
  5. The red girl is sad

She doesn't like spring
It's hard for her in the sun
Tears shed, poor thing.

(The teacher writes the answers of the students on the blackboard)

There is another word hidden here. Find it.

What does the word AX mean? (Cutting tool…)

3. Primary reading.

Name the main characters in the story?

4. Independent reading.

Point out words you don't understand as you read.

POBYVKA - short vacation

ROAD MAN - a person who is on the road.

SERVANT - soldier, soldier

BUY - sorry

NOTICED - paid attention

AMAZING - surprised

Why are there so many obsolete words in the fairy tale?

Let's find words that characterize the characters.

What are these traits. Prove (Selective reading)

Who do you like more? Why?

What is this fairy tale? Justify your answer.

Students are asked to make a conclusion about what is ridiculed in everyday fairy tales and what is glorified.

(!)In everyday fairy tales, laziness, greed are ridiculed, the mind and ingenuity of ordinary people are glorified.

What lesson did you learn from reading this story?

What proverb can you choose for a fairy tale?

1. Guess is not worse than reason.

2. Basting more valuable than wealth.

3. A stupid one turns sour, but a smart one will provide for everything.

(Work on the content of the proverb)

Generalization:

What are fairy tales?

Name the features of a household fairy tale.

Homework: (optionally)

  • expressive reading;
  • retelling;
  • try to write a fairy tale.

Reading program for elementary school it is envisaged that children in the 4th grade get acquainted with the work of Leo Tolstoy, reflect on the human actions of the heroes of the fable "Two Comrades" and look for an answer to the question of what is the main idea fable "How a man removed a stone." These works are small in volume, but deep in content, they teach children to think about how to do the right thing.

The moral of this story is

Why study fables? What it is? Dictionary S.I. Ozhegova defines a fable as "a short allegorical moralizing story". Getting acquainted with this genre, children learn to understand its features, the main of which is the presence of morality. What is it and what is meant by this word?

The fable not only ridicules shortcomings and vices, but also makes one draw some instructive conclusion about how one should (or should not) act. A story about some rules of behavior or communication, author's instructions constitute morality. For example, children in the 4th grade, in search of morality, should answer the question of what is the essence of L. Tolstoy's fable “How a man removed a stone” or “Two comrades”.

Features of the fable genre

A fable can be recognized not only by the presence of morality, it has others distinctive features. It is always a short story that is entertaining. interesting story. The author succeeds in easy short form deliver a deep and instructive story. For example, the events themselves and the main idea of ​​Tolstoy's fable "How the peasant removed the stone" are expressed in only eight sentences. A small volume makes the work accessible to children, they read, analyze and retell it. Tolstoy uses the genre form of the fable to express his thoughts, morality is expressed not by specific teachings, but allegorically. The reader must draw the conclusion for himself.

The fables have few descriptions and many dialogues. It is in this way that the "vitality" of the stated situation is achieved. The main idea of ​​\u200b\u200bthe fable “How the man removed the stone” lies in three sayings different people on the same issue. Each of the characters gave the answer that he considered necessary, and the conclusion was suggested to the reader by the author in the last sentence.

In a fable, there are usually several heroes, each of which carries some kind of semantic load. In one of the fables studied by the fourth-graders, these are two comrades, in the other - two scientific engineers and one simple peasant. The behavior or statement of one of the characters usually expresses the main idea. Tolstoy's fables "How a man removed a stone" and "Two comrades" are a vivid example of this.

The main idea of ​​one of the fables was expressed by a comrade abandoned in trouble to his “friend”, who at a difficult moment preferred to flee, leaving his partner in danger. The main idea of ​​the fable "How a man removed a stone" was expressed by the author, but the carrier original idea to get rid of the stone is a simple man who, by the way, embodies this idea, for which he receives a well-deserved reward.

The difference between the fables of Krylov and Tolstoy

In his works, Ivan Andreevich Krylov often makes heroes of animals, fish, birds, ridiculing human vices through their behavior. Of course, there are human characters in his fables. Leo Tolstoy expounds his teachings through the mouths of people; his fables are like little stories taken from life.

For his fables, Ivan Andreevich Krylov chose poetic form, Leo Tolstoy's main idea of ​​the fable "How the peasant removed the stone" and the fable "Two Comrades" is expressed in prose. Krylov's fables present to our attention comical situations, humorous characters fall into because of their shortcomings.

Leo Tolstoy, without deviating from the natural tone of the narrator of an everyday situation, creates for readers a terrible picture of a comrade left to be eaten by a bear or a city street, in the middle of which lies a stone, which only a savvy peasant can remove.

Are fables needed today?

The fables were written by Leo Tolstoy long ago, many years ago. Are they needed today modern people who use cranes, navigators, computers and mobile phones? Does their main thought teach something? The fables “How a man removed a stone” and “Two comrades” make you think and be smart, be kind and value friendship, not leave a comrade in trouble. And in our century there are many human vices, that's why cautionary tales- fables - as relevant as ever, a person needs them for self-development, in order to become better, get rid of bad qualities. A fable is an opportunity to see yourself from the outside and work on your shortcomings.

Everything ingenious is simple

Tolstoy's fables are like folk tales, they are close to folk wisdom, expressed in brief sayings, proverbs. You can pick up sayings in Russian folklore that explain what the main idea of ​​\u200b\u200bthe fable “How the peasant removed the stone” is. For example, "Where the ax does not take, the ingenuity will take it."

Leo Tolstoy, with the help of a short story, conveys to the reader the idea that in any business you need to be smart, then the most difficult task will become easy to do.

Reading the fable of Leo Tolstoy "How a man removed a stone", a person understands that in any case several solutions need to be considered. These methods can be costly and unsafe. For example, one of the engineers suggested a rational way to blow up a stone, but city buildings could have been damaged.

A simple man turned out to be smarter than scientific engineers, proposing a simple way - to dig a hole in the square. Contrasting people's ingenuity and worldly experience with rational scientific methods, Tolstoy shows that sometimes it is not worth making the task too complicated and it is worth paying attention to finding the shortest and simplest way to solve the problem.