It is our responsibility to save every drop of water and electricity in study and communication.
3. It can save every drop of water and electricity in daily life. 4. When you see the waste of water and electricity around you, point out and correct it in time.
Teaching process 1. Reveal the theme and arouse understanding 1. Students, think about it. What is the most indispensable thing in our daily life? In view of some phenomena existing in our life at present, we are going to learn (writing on the blackboard: save water and electricity, cherish resources) 2. Discussion deepens our understanding 1. Save water A. Show the real thing: a glass of water. B. discussion: what can a glass of water do? (name exchange) C. Take a quiz and vote by show of hands: Please raise your hand if you think that the earth is rich in water resources.
Show the pie chart of water with multimedia, so that students can understand the situation of water intuitively. Teacher: Water is so useful, but you know what? Three quarters of the earth's area is water, but most of it is seawater, and only 2% of it can be drunk.
E. Look at the pie chart and let the students talk about their feelings again. F. We live in the south, which is rich in water resources, and many cities in the north are short of water. Transition: Then students may ask, is our country short of electricity? 2. Save electricity and investigate feedback.
A. Communication: Every summer during the peak electricity consumption, your father or mother obviously wants to go to work, but says, "Let the electricity rest today." What is the reason? B. display electricity consumption data. Students exchanged last month's electricity bills.
D. Tell me about your electricity bill. How do you usually use electricity at home? Multimedia shows the knowledge of electricity. Third, the transition of connecting with reality and enhancing understanding: Yes, many countries now pay great attention to saving the earth's resources, and it is up to each of us to care for the earth.
1. From the study just now, we know that our life cannot be separated from water and electricity. Without water, we humans can't live. Our world would be dark without electricity. Do you want to live in that world? But in our life, many people are still wasting water and electricity: multimedia shows several pictures. 3. Do we or our relatives waste water and electricity? (student exchange) 4. This paper introduces the situation of water and electricity saving in developed countries.
Fourth, behavior training, materialized understanding transition: should students be pioneers in saving? So what should we do at school? Are you home? .
2. Kindergarten teaching plan "cherish water and electricity"
Design concept
The design of this course highlights the characteristics of activities and experiences. The purpose is to make students feel the extreme shortage of water and electricity, realize the important role of water and electricity in production and life, clarify the methods of saving, form the good habit of saving everywhere, and help students establish a sense of love and responsibility for others, society and all mankind through discussion and communication, scene simulation, behavior analysis and making agreements.
Teaching objectives
Emotion and attitude: arouse students' awareness of saving water and electricity, cherish and protect water resources, and stimulate students' feelings of cherishing water and electricity.
Behavior habit: cultivate the consciousness of saving water and electricity consciously, practice the good behavior method of saving water and electricity consciously, form the good habit of saving, and gradually enhance the awareness of environmental protection.
Knowledge and skills: Understand the current situation of hydropower resources around us, understand the use of hydropower in all aspects of production and life, understand the close relationship between hydropower and human beings, know that hydropower is a valuable resource, and learn how to save hydropower.
Process and method: investigation, interactive communication, discussion and analysis, understanding the preciousness of hydropower, forming a sense of conservation and correct values, and learning scientific conservation methods.
Teaching focus
Let students know that hydropower is a valuable resource, and learn how to save it.
Teaching difficulties
Let students know the importance of saving water and electricity and form a good habit of saving.
Teaching preparation
Teachers' preparation: make a questionnaire on household water and electricity consumption, assign investigation tasks, prepare to save convention samples and make teaching courseware.
Students' preparation: before class, learn about the use of water and electricity, investigate the daily water consumption of families and individuals, and do experiments on the water consumption for brushing teeth (whether the faucet is turned off, the flow rate and the proportion of water consumption). ), fill in the questionnaire. Inquire or check the water shortage on site, and record it in the form of words or pictures.
Class arrangement
2 class hours.
In the first class, finish the contents of the textbook P2 1-P24, entitled "Precious water", "What's the use of water" and "The day when the water stopped ...".
In the second class, the contents of teaching materials P25-P29 are completed, and the topics are "Cherish every drop of water" and "Save every kilowatt hour".
teaching process
first kind
Activity 1: Know the shape of water and explore the secret.
1. Teacher: Students, do you like riddles? Today, the teacher gave a riddle here to see who can guess: "Nothing is abnormal, and no one can leave." The steel knife keeps cutting, and the iron hook can't bear it. "
2. Teacher: How did you guess? Yes! Water is indispensable to everyone in our life. Today we will talk about "precious water" in this class. -The title of the board is "Water".
3. Where have you seen water? (Teacher's camera demonstration courseware: pictures of water)
4. Summary: In addition to the liquid water just mentioned, there are solid water (such as ice) and gaseous water (such as steam), which constitute abundant water resources in nature.
Design intention: stimulate interest through speculation, trigger existing life experience, understand the water resources around you, and lay the foundation for the next comparison.
Activity 2: Comparative demonstration, experience is valuable.
1. Teacher: The earth is rich in water resources, and 70.8% of its surface area is covered by water, but can all the water be used directly?
2. (Demonstration courseware: Show that "seawater accounts for about 97%, fresh water accounts for about 3%, and available fresh water accounts for about 0.5%." Teacher's demonstration: if a basin of water is compared to the water resources on the earth, then the fresh water resources are only equivalent to this bowl of water, and the available fresh water resources are only one spoonful.
Teacher: Can we use a lot of water? Tell me what you think.
4. Teacher: Do you know the serious consequences of the lack of available fresh water?
5. (Demo courseware: Play videos and pictures of water shortage) Teacher: What did you see and hear? What are you going to say?
6. Summary: There seems to be a lot of water on the earth, but in fact there is too little available. Without water, animals and plants can't survive, and human production and living activities can't be carried out, with very serious consequences.
Design intention: To guide students to perceive the preciousness and scarcity of water resources through obvious disparity through tables, physical demonstrations, watching videos, field trips and other intuitive ways.
Activity 3: Practice and explore, and understand the purpose.
1. Teacher: After class, we investigated the use of water from different angles and summarized your investigation.
2. Students talk and communicate in groups, and teachers patrol.
3. Each group sends a representative to communicate with the whole class. (From life, industry, leisure and entertainment, plants, urban construction, and other aspects, communicate with pictures, handwritten newspapers and words. )
4. After listening to your classmates' introduction, what do you want to say most at this moment?
5. Summary: * * 65% is water, and we have lived in water since we were pregnant in our mother's belly. In our production and life, water is needed everywhere, and we can't live without water.
Design intention: Through the group report, we realize the important role of water in life and production.
3. Try to save water.
If you want to save water, you must first learn to be proud of saving water. Everyone should know the importance of saving water, turn off the tap in time after washing hands, and remind others when they see others playing with water. When taking a bath, the water sprayed from the shower head should be concentrated in the basin before heating. If you want to wipe soap, turn off the water first and then wipe it. When washing clothes or washing dishes, try not to use detergent to prevent water pollution. Check whether the faucet leaks every day, and find and maintain it in time.
If you want to save water, you must learn to recycle it. Dishwashing water and vegetable washing water can be used to flush the toilet, saving water and protecting the environment; Wash face water and foot water can be used to water flowers, which is both time-saving and hygienic. If there is extra water, it can also be used to mop the floor. If everyone does this, water resources will be greatly improved. ◆ Wash your face and hands. Control the tap switch to medium and small water, and turn off the water in time.
Advocate washing face and hands with washbasin.
◆ Brush your teeth. When brushing your teeth, water will come out continuously for 30 seconds, and the water consumption is about 6 liters of water.
When brushing your teeth, use cups to receive water, 3 cups, and use 0.6 liters of water. A family of three brushes their teeth twice a day, saving 486 liters of water every month.
◆ Cooking and water saving
Oil stains on cookware and tableware can be wiped off with paper before washing, which can save water.
◇ Control the flow of the faucet, and change the uninterrupted flushing into intermittent flushing.
◆ Shower and bath save water.
Intermittent showers. Turn off the water in time when scrubbing.
◇ Avoid taking a long shower.
The water after bathing can be used for washing clothes, washing cars, flushing toilets and mopping floors.
◆ Laundry water saving
Automatic washing machine adopts washing-dehydration-water injection-dehydration-water injection-dehydration.
The water consumption per time is about 1 10 liter, and 55 liters can be saved each time, and 220 liters can be saved by washing four times a month.
◇ clothes should be washed centrally to reduce the number of laundry.
Small items, summer grain clothes. Advocating hand washing can save a lot of water.
◇ Detergent should be put in moderation, too much will waste a lot of water.
◆ Toilet water saving
◇ Use water-saving sanitary ware.
◇ Using washing water and washing water to flush toilets can save water.
◆ Car washing and water saving
◇ Barreled water car wash needs 3 barrels of water, about 30 liters of water.
Wash the car with car wash water and car wash water.
◇ Adopt mechanical automatic car washing, and recycle the car washing water treatment.
It is amazing to put an end to wasting water. A faucet that can't be turned off tightly can drain 1-6 cubic meters a month; A leaky toilet will drain 3-25 cubic meters a month. If there are 600,000 faucets and 200,000 toilets leaking in the city, hundreds of millions of cubic meters of water will be lost a year.
4. Water saving tips
The waste of water is amazing: a faucet that is not closed tightly can discharge 1 to 6 cubic meters of water a month; A leaky toilet will drain 3 to 25 cubic meters a month; If 600,000 faucets are not tightly connected and 200,000 toilets leak, a city may lose hundreds of millions of cubic meters of water a year.
Therefore, it is necessary to master some water-saving common sense in daily life. First, brush waste: uninterrupted drainage.
Water saving: use a cup to receive water. Second, laundry waste: the washing machine continuously washes and drains water while filling water.
Water saving: centralized washing of clothes, reducing the number of laundry; Hand washing is advocated for small pieces and a small amount of clothes; Put in the right amount of detergent. Third, the waste of bathing: for a long time, water is constantly pouring out; Too much water overflows when taking a bath, or water is injected while opening the water plug.
Water saving: shower intermittently, turn off the water in time when scrubbing, and avoid taking a long shower. The water after bathing can be used for washing clothes, washing cars, flushing toilets and mopping floors.
Fourth, cooking waste: the faucet is wide open and washed for a long time; Boiling water for too long, a lot of water vapor evaporates; Wash watermelons and fruits with tap water. Water saving: first wipe off the oil stains on cookware and tableware with paper, and then wash them clean; Control the flow of the faucet, and change the uninterrupted flushing into intermittent flushing.
Five, car wash waste: wash with water pipes for a long time. Water saving: wash the car with water in a bucket; Wash the car with car wash water and car wash water; Rinse with water-saving spray gun; Use mechanical automatic car washing.
Car wash water is recycled. How to save water in the bathroom? Don't pour ash, leftovers, waste paper, etc. Flush the toilet with water.
Install a toilet with small water storage capacity. This can save 5-7 gallons of water per flush.
Install a water-saving faucet in the shower, choose a shorter shower, and the water pipe should not be too long. Always check the faucet and water pipe of the water pipe to see if it leaks.
Even if a drop of water leaks, it will lose 1500 gallons a month. How to save water in kitchen? Don't always turn on the tap when washing vegetables. Wash them in a clean water tank first, and then rinse them with clean water.
If you don't use the dishwasher to clean the dishes, don't use water directly. Put the dishes to be washed in one sink first, and then wash them quickly in another sink.
What are the main ways to save water at home? First, families who use water to flush toilets can put 1-2 bricks in the water tank to reduce the displacement and achieve the purpose of saving water. Second, use less washing machine, because washing clothes with washing machine consumes twice as much water as washing clothes by hand.
In order to save water, except for quilts, sheets and other big pieces, other small clothes are best washed by hand. Third, comprehensive utilization, multi-use of one water, saving water.
For example, rice washing water can be used to water flowers; Face wash water can be used to wash clothes or feet. What matters should be paid attention to in household water saving? Turn off the dripping faucet in time.
Install a water-saving device in the toilet water storage tank. Don't water the flowers at noon, because the sun is strong at noon and the water is easy to evaporate.
Installing a running water controller on the faucet can save a lot of water. Tell the whole family not to turn on the tap when washing fruits and vegetables, washing handkerchiefs and shaving.
Write "Please pay attention to saving water" on your tap. Please tighten the faucet when you go out after the power and water are cut off.
How many ways can a family use more water? Answer: There are basically four methods. (1) You can wash your feet with face wash water and then flush the toilet. (2) A vat for collecting waste water should be prepared at home, which can completely guarantee the water needed for flushing the toilet.
(3) Rice washing water and noodle cooking water are used to wash dishes and chopsticks, which not only removes oil but also saves water. (4) Raising fish and watering flowers can promote the growth of flowers and trees.
5. Save water courseware
For a long time, people generally believe that water is "inexhaustible". If you don't know how to cherish it, you will waste it.
In fact, water resources are increasingly scarce, and the urban water supply work in our city is struggling on the edge of serious water shortage, and tap water is hard to come by. People can't live without water for a day. Water is the source of life. Cherishing water means cherishing your own life! Here are some water-saving common sense in daily life: waste of brushing teeth: continuous drainage for 30 seconds, and water consumption is about 6 liters.
Water saving: cups are connected with water, 3 cups use 0.6 liters of water. A family of three can save 486 liters of water twice a day.
Laundry waste: the washing machine continuously washes and drains water while filling water, which requires about 165 liter of water each time. Water saving: the washing machine adopts the washing-dehydration-water injection-dehydration-water injection-dehydration mode, and the water consumption is 1 10 liter each time, which can save 55 liters and 220 liters each time.
In addition, centralized laundry can reduce the number of laundry; Hand washing is advocated for small pieces and a small amount of clothes, which can save a lot of water; Too much detergent will waste a lot of water. Bathing waste: a long uninterrupted water shower will waste a lot of water.
Too much bath water, or even overflow, or open the water plug and inject water at the same time, the waste will be amazing. Water saving: intermittent water shower (such as pedaling, induction, etc.). ).
Turn off the water in time when scrubbing. Avoid taking a long shower.
The water after bathing can be used for washing clothes, washing cars, flushing toilets and mopping floors. Kitchen waste: the tap was turned on and washed for a long time.
Boiling water for too long, a lot of water vapor evaporates. Rinse vegetables and fruits with tap water.
Water saving: oil stains on cookware and tableware can be wiped off with paper before washing, which can save water. Control the flow of the faucet, and change the uninterrupted flushing into intermittent flushing.
Waste of car washing: rinse with water pipe for 20 minutes and use about 240 liters of water. Water saving: 3 barrels of water are needed for car washing, and the water consumption is about 30 liters.
Wash the car with car wash water and car wash water. Rinse with a water-saving spray gun.
Use mechanical automatic car washing, car washing water treatment recycling. Small way to save water: save water, benefit the present and benefit the future. These are some small ways to save water in life. 1. Washing vegetables with rice-washing water and then with clear water not only saves water, but also effectively removes pesticide residues on vegetables; Second, wash the mop, sweep the floor, and then flush the toilet.
The second washing water for washing clothes cleans doors and windows, furniture, shoes and socks, etc. Third, flush the toilet after urinating, try not to open the big water pipe for flushing, and make full use of the used "dirty water"; 4. Sprinkle water on the indoor and outdoor ground in summer to cool down, try not to use clear water, and use washing water after washing; 5. When cleaning bicycles and family cars, don't wash them with water, but wipe them with a wet cloth. If it is too dirty, wash it with the water left over from washing clothes. 6. Flushing the toilet: If you use water-saving equipment, you can save 4-5 kilograms of water each time; Seven, family watering flowers, appropriate use Taomi water, tea, laundry water, etc. ; Eight, household washing towels, small objects, fruits and other small amounts of water. It is advisable to use a basin to hold water instead of turning on the tap to flush it; 9. Washing the floor: scrubbing with a mop can save more than 200 kilograms of water than washing each household with a faucet; Ten, faucet used for a long time leaks. You can cut the rubber cover of the small penicillin bottle open to ensure no water leakage; 1 1. Adjust the floating ball in the toilet water tank down by 2 cm, saving nearly 3 kg of water each time; If you use it four times a day at home, you can save 4380kg of medicine a year.
Twelve, washing vegetables: a pot of a pot, do not run the faucet, a meal can save 50kg；; 13. Shower: If you turn off the tap to wipe soap, you can save 60kg of water by taking a shower; 14. Hand-washing clothes: If you use the washbasin to wash clothes, you will save 200kg of water each time compared with turning on the tap; 15. Washing clothes with a washing machine: I suggest you fill a bucket before washing. If washed twice separately, it will consume120kg; More water. Sixteen, car washing: scrubbing with a rag can save at least 400kg. Compared with washing with a faucet, the water consumption is much less each time; +I QQ.
6. Try to save water.
1. Water-saving toilets should be used, and general toilets should be equipped with class 2 flushing fittings.
2. Remove the floating cake under the water tank to form a stepless control water outlet. 3. The flushing time of the urinal automatic flusher is shortened.
4. Water the flowers, wash the car and scrub the floor with clean water such as rice washing water, laundry water, dish washing water and bath water. 5. The carpet cleaning method is changed from wet or steam to dry powder.
6. Recycle the water collected by dehumidifier and the wastewater from water purification equipment such as pure water machine and distilled water machine. After six water-saving secrets, have you thought of a better water-saving method than me? Are you saving water? I think you should save water! Now I'm talking about the waste of brushing your teeth: water comes out continuously for 30 seconds, and the water consumption is about 6 liters.
Water saving: cups are connected with water, 3 cups use 0.6 liters of water. A family of three can save 486 liters of water twice a day.
Laundry waste: the washing machine continuously washes and drains water while filling water, which requires about 165 liter of water each time. Water saving: the washing machine adopts the washing-dehydration-water injection-dehydration-water injection-dehydration mode, and the water consumption is 1 10 liter each time, which can save 55 liters and 220 liters each time.
In addition, centralized laundry can reduce the number of laundry; Hand washing is advocated for small pieces and a small amount of clothes, which can save a lot of water; Too much detergent will waste a lot of water. Bathing waste: a long uninterrupted water shower will waste a lot of water.
Too much bath water, or even overflow, or open the water plug and inject water at the same time, the waste will be amazing. Water saving: intermittent water shower (such as pedaling, induction, etc.). ).
Turn off the water in time when scrubbing. Avoid taking a long shower.
The water after bathing can be used for washing clothes, washing cars, flushing toilets and mopping floors. Kitchen waste: the tap was turned on and washed for a long time.
Boiling water for too long, a lot of water vapor evaporates. Rinse vegetables and fruits with tap water.
Water saving: oil stains on cookware and tableware can be wiped off with paper before washing, which can save water. Control the flow of the faucet, and change the uninterrupted flushing into intermittent flushing.
Waste of car washing: rinse with water pipe for 20 minutes and use about 240 liters of water. Water saving: 3 barrels of water are needed for car washing, and the water consumption is about 30 liters.
Wash the car with car wash water and car wash water. Rinse with a water-saving spray gun.
Use mechanical automatic car washing, car washing water treatment recycling. Small way to save water: save water, benefit the present and benefit the future. These are some small ways to save water in life. 1. Washing vegetables with rice-washing water and then with clear water not only saves water, but also effectively removes pesticide residues on vegetables; Second, wash the mop, sweep the floor, and then flush the toilet.
The second washing water for washing clothes cleans doors and windows, furniture, shoes and socks, etc. Third, flush the toilet after urinating, try not to open the big water pipe for flushing, and make full use of the used "dirty water"; 4. Sprinkle water on the indoor and outdoor ground in summer to cool down, try not to use clear water, and use washing water after washing; 5. When cleaning bicycles and family cars, don't wash them with water, but wipe them with a wet cloth. If it is too dirty, wash it with the water left over from washing clothes. 6. Flushing the toilet: If you use water-saving equipment, you can save 4-5 kilograms of water each time; Seven, family watering flowers, appropriate use Taomi water, tea, laundry water, etc. ; Eight, household washing towels, small objects, fruits and other small amounts of water. It is advisable to use a basin to hold water instead of turning on the tap to flush it; 9. Washing the floor: scrubbing with a mop can save more than 200 kilograms of water than washing each household with a faucet; Ten, faucet used for a long time leaks. You can cut the rubber cover of the small penicillin bottle open to ensure no water leakage; 1 1. Adjust the floating ball in the toilet water tank down by 2 cm, saving nearly 3 kg of water each time; If you use it four times a day at home, you can save 4380kg of medicine a year.
Twelve, washing vegetables: a pot of a pot, do not run the faucet, a meal can save 50kg；; 13. Shower: If you turn off the tap to wipe soap, you can save 60kg of water by taking a shower; 14. Hand-washing clothes: If you use the washbasin to wash clothes, you will save 200kg of water each time compared with turning on the tap; 15. Washing clothes with a washing machine: I suggest you fill a bucket before washing. If washed twice separately, it will consume120kg; More water. Sixteen, car washing: scrubbing with a rag, each time can save at least 400kg of water than washing with a faucet.
7. Little common sense about water
1. Washing vegetables with rice-washing water and then with clear water not only saves water, but also effectively removes pesticide residues on vegetables; Second, wash the mop, sweep the floor, and then flush the toilet.
The second washing water for washing clothes cleans doors and windows, furniture, shoes and socks, etc. Third, flush the toilet after urinating, try not to open the big water pipe for flushing, and make full use of the used "dirty water"; 4. Sprinkle water on the indoor and outdoor ground in summer to cool down, try not to use clear water, and use washing water after washing; 5. When cleaning bicycles and family cars, don't wash them with water, but wipe them with a wet cloth. If it is too dirty, wash it with the water left over from washing clothes. 6. Flushing the toilet: If you use water-saving equipment, you can save 4-5 kilograms of water each time; Seven, family watering flowers, appropriate use Taomi water, tea, laundry water, etc. ; Eight, household washing towels, small objects, fruits and other small amounts of water. It is advisable to use a basin to hold water instead of turning on the tap to flush it; 9. Washing the floor: scrubbing with a mop can save more than 200 kilograms of water than washing each household with a faucet; Ten, faucet used for a long time leaks. You can cut the rubber cover of the small penicillin bottle open to ensure no water leakage; 1 1. Adjust the floating ball in the toilet water tank down by 2 cm, saving nearly 3 kg of water each time; If you use it four times a day at home, you can save 4380kg of medicine a year.
Twelve, washing vegetables: a pot of a pot, do not run the faucet, a meal can save 50kg；; 13. Shower: If you turn off the tap to wipe soap, you can save 60kg of water by taking a shower; 14. Hand-washing clothes: If you use the washbasin to wash clothes, you will save 200kg of water each time compared with turning on the tap; 15. Washing clothes with a washing machine: I suggest you fill a bucket before washing. If you wash it twice separately, you will consume 120kg more water.