The teaching plan of safety education in the third grade of primary school Volume I: Electric Tiger Darling Tiger

Teaching objectives:

1, know the danger of getting an electric shock sometimes in life, and know the standardized electricity consumption behavior in life to prevent injuries.

2. Know that electric shock will directly threaten people's lives and understand the importance of safe electricity use.

3, know some basic first aid measures after getting an electric shock.

4, through learning, improve students' awareness of self-protection, more aware of the value of life, cultivate students' awareness of cherishing life.

Teaching focus:

1 Know the importance of safe electricity use.

Knowing that electric shock will directly threaten people's lives.

Teaching difficulties:

Let students be willing to improve their awareness of self-protection and feel the value of life.

teaching process

1. Introduction: Campus safety education in primary and secondary schools has always attracted much attention. Due to many factors, there are about16,000 primary and secondary school students who die abnormally every year in China. On average, about 40 students die every day from food poisoning, drowning, traffic or safety accidents; At present, about 400,000 to 500,000 children are still injured by accidents such as poisoning, electric shock and homicide, and a considerable part of these accidents are related to our weak safety awareness.

Electricity is indispensable in our life. It brings us light and convenience. With the continuous improvement of living standards, more and more places use electricity in our lives, but if we don't pay attention to safety, electricity will also bring us danger and disaster.

II. Focus of the case

Focus of the case1:In the early morning of a certain day in 2006 10, a tragedy happened in a resident's home at No.580 Lane 12 Lizheng Road, Shanghai: a 20-year-old student was unfortunately electrocuted while using a computer.

The reporter rushed to the downstairs of the accident community 12, and learned from the insider that 20-year-old Xiao Wu is a technical school student. Yesterday morning, Xiao Wu rested at home during the summer vacation and was electrocuted while surfing the Internet at home. The police initially determined that due to the hot weather, Xiao Wu sweated a lot on his legs and feet, and his feet accidentally touched the power socket, which led to the accident.

After the incident, 120 emergency personnel rushed to the scene for emergency rescue. Because the current hurt their hearts, although they were saved, there was nothing they could do. (Source: News Lunch)

Case Focus 2: An accident occurred in Yuetang Middle School, Xiuyu District, Putian City: A junior high school boy accidentally touched the high-voltage line near the wall while crossing the school wall and died on the spot. The relatives of the student told the reporter that the student's surname is Guo, and he is 16 years old this year. He is in the third grade and is from the village of Yuetang Township. As far as they know, Xiao Guo wants to leave school because there was no class at the school sports meeting yesterday morning. However, the school implements closed management and the door is locked. So Xiao Guo wanted to climb over the fence and leave the school, but he touched the high-voltage line at * and died on the spot.

From the above examples, it can be clearly seen that if we don't pay attention to the safety of electricity use in our life, it will inevitably do harm to our health and even our lives. Let's take a look at the following phenomena and problems, and you can judge whether they are doing it right or not. What should you do in these situations?

Third, the phenomenon analysis:

One day, Xiao Ming, a student in a school, found a lot of dust on the electric fan in the classroom when he was cleaning the classroom, so he picked up a wet rag to wipe the dust on the electric fan.

2. I went to my classmate's house to do my homework after school, and I saw my classmate picking out the wire of the desk lamp with a pencil because it didn't work.

The wire in Xiaohua's house suddenly caught fire. Xiaohua quickly poured water on the wires to put out the fire.

Xiao Ming cleaned the school dormitory and wiped the power switch with a wet cloth. What should I do if I see it?

The fuse of the classroom power switch is broken. What do you do?

6. If the wire is broken in the classroom, can I touch it with my hands? Why?

7. A classmate got an electric shock in the classroom. What did you do? Why?

8. You find that the electrical appliances are smoking, sparking and burning. What do you do and why?

Fourth, how much do you know about electric shock prevention? (picture shows)

Arrange professional electrical maintenance personnel to regularly check and repair wires, switches and sockets.

Don't overload electrical appliances.

Buy electrical appliances with safety signs and meeting safety standards.

Electrical appliances should be equipped with leakage protection devices.

The wire is damaged and must be replaced.

Power socket or general socket with valve design shall be used.

Please turn off the power supply when you are not using electrical appliances.

Don't touch electrical appliances and sockets when your hands are wet.

Five, electric shock first aid method (picture display)

Electric shock is caused by electric current passing through the human body. After getting an electric shock, there will be burn marks at the current entrance and exit of the body.

Causes temporary tingling and muscle contraction, loss of consciousness, muscle spasm, and even respiratory and heartbeat stops.

Electric shock first aid:

Electric shock can cause personal injury or death. If electric shock is found, measures should be taken to quickly disconnect the power supply of the electric shock victim.

(1) cut off the power supply;

(2) tripping the power switch by short circuit;

(3) The ambulance personnel should wear insulating shoes and gloves, and isolate the person who gets an electric shock from the power supply with insulating rods;

(4) When cutting off the power supply, prevent the person who gets an electric shock from falling down again;

(5) Don't touch the body of the person who gets an electric shock directly with your bare hands before cutting off the power supply.

Medical rescue methods for electric shock:

1. When the electric shock victim is unconscious, he should be placed in a well-ventilated and warm place to rest quietly and call a doctor at the same time.

2. When the electric shock victim has lost consciousness, but his breathing and pulse have not stopped, he should be placed in a flat and ventilated place, unbuttoned his underwear, so that his breathing is unimpeded, and at the same time, he should rub his whole body with a towel to make him warm, and call a doctor quickly.

3. If the person who gets an electric shock loses consciousness and has difficulty breathing, artificial respiration should be carried out immediately, and a doctor should be called for emergency treatment quickly. Never give an electric shock a cardiotonic or throw cold water on him.

4. When the breathing and heartbeat of the electrocuted person have stopped, it may be suspended animation. Ambulancemen should adhere to the principle of first rescue and then move, and should immediately give artificial respiration or squeeze the heart to rescue them until the doctor diagnosed them as dead.

5. Mouth-to-mouth blowing is effective in artificial respiration. When giving first aid, the head of the electric shock victim leans back as far as possible, and the nostril faces the sky, so that the base of the tongue does not block the airflow, which is convenient for blowing first aid.

Sixth, summary: How to prevent electric shock?

1, learn the common sense of electricity, don't touch the power supply with hard objects, and don't touch the power supply with a certain part of the human body to prevent electric shock.

2. Don't plug in or connect the power without permission, especially don't plug in the power with wet hands.

3. Pay more attention to observe whether all kinds of electrical appliances, plugs, sockets, wires and lights at home are damaged or aging. If so, immediately tell parents to handle it correctly.

We primary and middle school students should not play with electricity privately, especially when there is no one at home.

5. All metal products are conductive. Never use these tools to really connect the power supply.

6, don't use a wet towel to wipe the electrical appliances, to prevent water from falling into the shell and causing short circuit, so as to avoid electric shock.

7. On the way to and from school, pay special attention to whether the wires on the roadside have fallen off, and you must avoid them when you see them.

8, thunderstorm weather, never stand under the tree to avoid rain, so as not to be struck by lightning.

9. The storm blew down the wires, and some people were unfortunately electrocuted. Never stretch out your hand to pull the electrocuted person. The correct way is to connect the wires with dry wooden sticks and other insulating items, and inform adults and relevant departments.

Seven, our school students' guide to safe use of electricity on campus.

1, consciously abide by the rules and regulations for safe electricity use, and do not disassemble the power cord, socket, plug, etc. Casual; If you need to install and repair electrical appliances such as electrical equipment and lamps, it should be carried out by an electrician.

2. Know the location of the main power switch (such as the main power switch in the classroom) and learn to turn off the main power in an emergency.

3. Don't touch and test the inside of the power socket with your hands or conductive objects (such as wire, nails, pins and other metal products). Don't touch electrical appliances with wet hands, and don't wipe them with wet cloth.

4, electrical appliances should be closed after use; Don't pull the wire when plugging and unplugging the power plug to prevent the insulation of the wire from being damaged and causing electric shock; For example, the power supply of the water dispenser in our school class must be unplugged by the students on duty after school to prevent accidents. )

5, found someone get an electric shock to try to turn off the power in time. Use a dry wooden stick and other things to separate the person who gets an electric shock from the live appliances, and don't save people directly by hand. In this case, students should ask adults for help, not handle it themselves, in order to prevent electric shock. If the electric shock person's breathing and heartbeat have stopped, give artificial respiration immediately after leaving the power supply, and at the same time give chest compressions, and call a doctor for emergency treatment as soon as possible.

6. Don't climb the pole or shake the pole stay.

7. When the grounding wire is found, don't pick it up by hand at a distance of 10 meter. At the same time, try to take good care of the ground wire and ask an electrician to deal with it to prevent others from getting near to get an electric shock.

8. If the wire is on fire, first cut off the power supply; If there is no power failure, cover the fire with soil and sand, and never use water to prevent electric shock.

Nine, summary:

In daily life, if you encounter an accidental electric shock, don't panic. If we operate properly, we will be able to save the day, and we must be calm!