Classroom development. Topic: “Mobile phones: benefits and harm.”
Classroom development.
Subject:
"Mobile phones: benefits and harm."
Goals:
familiarize students with some facts from the history of the development of mobile phone production; identify the advantages and disadvantages of mobile phones; develop rules for the use of mobile phones; develop students’ ability to work in a team; develop the ability to defend your point of view; work on team unity.
Equipment:
multimedia projector, laptop, screen, assistant table, diagnostic table, “palms”, hourglass, cards with phone numbers and words.
Progress of the class hour:
— Good morning, guys and dear guests! I am very glad to welcome you all today. I wish you a good mood for the whole day. Before we start class, let's play a game that may be familiar to you, “Atoms and Molecules.” Imagine that you are all atoms. Atoms are constantly moving and from time to time they combine into molecules. The number of atoms in a molecule can be different, it is determined by what number I name. You will now begin to move, and from time to time I will call a number. And then the atoms must unite into molecules. Let's start moving. Next, the children begin to move, and the teacher calls out the numbers at certain intervals:
3, 5, 15
.
Children unite into molecules.
This is how friendly the molecule turned out to be. I am sure that you have the same friendly team.
Please take one piece of paper at a time and sit at the table that corresponds to the number on the piece of paper. The children are seated .
You all probably know what “puzzles” are. Collect a picture from these pieces of paper. If you do everything correctly, you will find out the topic of today's class hour. Whichever group is ready, raise your hands together. Children collect pictures.
- So, what are we going to talk about during class? The children answer.
—
That's right, about cell phones and the role they play in our lives.
- Let's start with a little game called “Do you believe?” Your palms are on the tables. If you believe what I’m going to say, then show your red palm, if not, show your black palm.
A) - Do you believe that there are disposable paper phones in the world?
- Yes it's true. Such phones first appeared in 2001 in America and China. They were intended for tourists, but were not popular.
B) - Do you believe that the weight of the first cell phone was 30 kg?
- Yes this is true. At the beginning, all the equipment was very bulky and heavy, and in order to work it was necessary to constantly connect it to the mains. It was impossible to listen and talk on this phone at the same time .
exactly.
Q) - Do you believe that the flip cell phone was originally intended only for women?
- In fact, this is exactly so. In 2001, Samsung released such phones for the first time.
D) - Do you believe that for the first time a cellular base station was installed on the roof of a 50-story building?
— This event took place in the spring of 1973 in New York. The weight of the device was 1 kg 15 g. You could talk on it for about half an hour, and charging it required 10 hours.
D) - Do you believe that the cell phone appeared in Russia earlier than in America?
- No. In Russia, cell phones appeared 18 years later than in America. This happened in 1991. In St. Petersburg, a cellular network began operating, which later grew into. At that time, only rich people could use cellular communications, since a cell phone in Russia cost $2,000, and connecting to the network also cost $2,000. A minute of conversation cost one dollar.
— Mobile communications have a long history. It took almost a hundred years to move from simple developments to the more modern and advanced phones that we now use. The phones of our time have many different advantages, which we will talk about now.
— We are starting to work in groups. Discuss everything together in a group, what advantages you know, write them down on a sheet with a picture of a cell phone. Someone alone in the group writes down the answer options. Choose one speaker from each group. You have three minutes for this.
- Let's hear your answers. Let's start with group No. 1. Students' answers are heard at the board.
— Do other groups have additions? Name something that hasn't been talked about yet. Group No. 2, Group No. 3?
The leaves are hung on the board.
— Look how many advantages of modern mobile phones you have listed.
— What do you think, can a cell phone negatively affect our lives? Student answers. Post a piece of paper with the words: “Are there any shortcomings?”
Next, each group is given cards with the words:
1) road, transport, driver, pedestrian
2) school, lessons, teacher, students
3) street
,
passers-by, call, darkness
- You will receive information about what harm a cell phone can cause if you complete the following task. On the cards you are offered a number of words that you must connect into a single chain and formulate the disadvantage of a cell phone that these words indicate. Determine in groups who will answer. Let's start the task. You have two minutes.
Before answering, students read the words on the cards. Next, the students’ answers are heard (starting with group No. 2). The teacher makes the necessary additions as the students speak.
— In studies conducted in England, the USA, and Australia, it was proven that when using a cell phone while driving, the risk of getting into an accident increases by 50%. Up to 30% of accidents on the roads occur due to the fault of drivers talking on the phone while driving or reading SMS messages on the road.
— Cell phones are a source of problematic situations in schools, the cause of conflicts between students and teachers. Children are not shy about using phones in class, listening to music and exchanging SMS messages. This distracts students from classes and disrupts the learning process.
At the same time, the following expressions are posted on the board:
- danger on the road
- inattention in class
- risk of attracting attention
- “boiled brain” effect
- risk of serious illness
— There is a term “boiled brain effect.” When communicating on a cell phone for too long, the temperature rises sharply, and damage to the blood vessels of the brain occurs at ear level.
“There is also a risk of serious illness.” In order to clarify this problem, scientists have been studying the effects of electromagnetic radiation emanating from cell phones for more than 6 years. They concluded that there is a connection between cell phone use and the risk of certain forms of malignant tumors, i.e. cancer.
— What should you do to avoid various unpleasant situations when using a cell phone? Student answers.
- Let's draw up rules for using a cell phone. I suggest working using tables. The table has three columns:
-What don’t you do? (prescribe what not to do when using a cell phone)
-When? Where? (you write down what time?, in what place? You can’t use a cell phone)
-Why? (for what reason can you not use a cell phone)
— You have four minutes to complete this task.
Next, work is carried out in groups.
After which the children read the rules (we start with group No. 3), the teacher hangs the tables on the board and supplements them with the following rules:
- do not use the phone during lessons
- do not put your phone in the inner pockets of your clothes, close to your body
- turn off your cell phone in public places
— All the rules, without exception, are necessary, useful, and maybe even familiar to you. Do we accept these rules? If you agree, vote using your palms: red - yes, black - no. Unanimously. Thanks to all!
- Which of you guys adheres to these rules? Children raise their hands.
- And who now, after today’s conversation, will try to follow these rules? Children raise their hands.
Conclusions:
— The cell phone has become an integral part of our lives, without it we are like without hands. Experts' opinions about their benefits and harms differ: they say that it is dangerous, then there is nothing wrong with it. We are convinced that a cell phone with all its advantages is a useful and necessary thing, and, given its shortcomings, it can be argued that the phone is harmful to humans. And whether he becomes a friend or an enemy depends entirely on ourselves.
— And in conclusion, I want to give you these small booklets (show)
. They contain all the information that we talked about today. You can show them to your friends and relatives to draw their attention to the problem of proper use of a cell phone.
- Thank you very much everyone! You are very good and friendly guys! Thank you for your help with today's class! And to find out your opinion about our meeting today and the conversation that we had with you, I will ask you to answer the question (read it out).
Please fill out the sign by gluing your palms there. Each of you can have your own opinion. Answer as you see fit. If you want, you can glue the palm in several places.
A mobile phone is a person’s friend or foe Research by Nikita Vashkevich. - presentation
A mobile phone is a person’s friend or foe Research by Nikita Vashkevich
Goal: Learn about the benefits and harms of a mobile phone. Objectives: Objectives: 1. Study the history of the telephone, find out the types of telephone communications1. Study the history of the telephone, find out the types of telephone communications 2. Find out the benefits and harms of a mobile phone. 2. Find out the benefits and harms of a mobile phone. 3. Conduct research - a mobile phone in the lives of students in our class. 3. Conduct research - a mobile phone in the lives of students in our class. 4. Learn the rules of telephone etiquette. 4. Learn the rules of telephone etiquette.
TELEPHONE A telephone is a mechanism that transmits speech over a long distance. The circuit of the simplest telephone is a thread with a box as a microphone. A telephone is a mechanism that transmits speech over a long distance. The circuit of the simplest telephone is a thread with a box as a microphone. The first telephone was created by inventor Alexander Bell in 1876. For the first conversation on the telephone, the inventor did not have to dial a number, since at that time there were two telephones in the world. The first telephone was created by the inventor Alexander Bell in 1876. For the first conversation on the phone, the inventor did not have to dial a number, since at that time there were two telephones in the world. The first mobile telephone service was tested in 1950, and the first mobile phone was released by Motorola in 1974. The first mobile telephone service was tested in 1950, and the first mobile phone was released by Motorola in 1974.
Types of telephone communication Telephone communication can be divided into two types: by wire - wired communication; by wire - wired communication; using a radio signal - mobile communications; using a radio signal - mobile communications;
What are mobile communications accused of?
British researchers claim that electromagnetic waves emanating from a mobile phone destroy the immune system.
Swedish scientists have concluded that those who use a mobile phone very often suffer from headaches and a constant feeling of drowsiness.
According to the World Health Organization, using cell phones for more than an hour a day significantly impairs vision and hearing.
What to save yourself with?
Avoid constantly placing the phone near your ear. Buy yourself some headphones.
When purchasing a brand new mobile phone, be sure to check whether it has security verification documents.
You should not talk on a cell phone in a car: when reflected from the metal body of the car, cell phone radiation increases several times.
Do not hold the receiver to your ear while waiting for the caller to answer. Look at the screen and bring the phone to your ear when the connection is made.
Talk time
Research - a mobile phone in the lives of students in our class.
How often do guys use the phone?
Girls talk for a longer time.
Who do survey participants communicate with most often?
How is the phone used, other than making calls?
Conclusions of the study The telephone is an integral part of the life of students in our class. But at the same time, the fact that students talk on the phone for long periods of time throughout the day is alarming.
Phone etiquette rules.
There is no need to talk on a mobile phone in libraries, museums, theaters and cinemas.
Using a mobile phone while driving is unsafe and may result in an accident.
You would be polite if you do not choose loud and annoying music for your ringtone.
Respect the rules. When you are asked to refrain from using cell phones in a facility or on an airplane, do not pretend that you did not hear anything.
There's no point in shouting into the phone. Especially if there are people nearby. Speak quietly and softly.
In the end, I would like to say remember everything that has been said and do not let your phone interfere with your life, because it is designed to help it! In the end, I would like to say remember everything that has been said and do not let your phone interfere with your life, because it is designed to help it!
