Where does the water come from?

Question 1: what is the goal of the middle class's social activities?

1. Understand the close relationship between water and human life, and understand the preciousness of water.

2. Be able to actively conceive ways to protect water resources and be willing to participate in actions to protect water resources.

3. By designing signs, the consciousness of saving water is germinated.

Activity preparation:

Some round white paper, some Gou Xianbi, some pictures, videos and music.

Activity flow:

(A) to understand the close relationship between water and people's lives.

1. Play the sound of water.

Teacher: Listen, what's that noise? (water) 2. Teacher: Do you know the purpose of water? The teacher concluded: (Use of water) We all need water for drinking, bathing, washing hands, washing clothes and vegetables, raising livestock, irrigating farmland, water transportation, hydroelectric power generation, etc. Because of the water, we can see the beautiful fountain and go out to play by boat.

Animals should also drink water and bathe in water.

Plants also need water to grow.

Teacher: We can't live without water. Animals and plants also need water.

3. Appreciate the pictures of refrigerator and steamer, and understand the solid and gaseous state of water.

Teacher: The water we just said is liquid. Is there any other appearance of water?

Look at the picture of the refrigerator. Teacher: Is there any water in the refrigerator? Where is it? What is the use of ice?

Looking at the steaming pot, I asked: Is there any water in this picture? Where is it? In fact, the hot air on the pot is actually water, called steam. Ice is the solid state of water, and water vapor is the gaseous state of water. Although it is not the same as water, it is all water.

Teacher: What will happen if there is no water in the world?

The teacher concluded: people will die of thirst, animals and plants can't live without water ... people can't live without water, bathing without water is dirty, washing vegetables without water is dirty, and food is dirty. Animals can't live without water. Plants can't grow without water, and finally. Without water, we will never see the beautiful sea and spectacular fountains again.

(2) Understand the current situation of water resources and inspire children to actively conceive ways to protect water resources.

1. Teacher: Now a lot of water is too dirty to use. Let's take a look at the harm that dirty water brings to our earth. (watching video) 2. Teacher: Our water keeps getting dirty and polluted. How can we protect it? (Don't throw garbage into the river, don't discharge industrial wastewater into the river, and strengthen water resources management ...) Teacher: Water is our good friend. Is it inexhaustible?

Teacher: Since water is limited, we should save water. How to save water? Kindergarten (around kindergarten and family):

Turn off the tap; Turn down the water when washing your hands; Don't waste water when drinking water; Don't play with water; Family:

1. Water the flowers with Taomi water; Mop the floor with washing water; Flush the toilet or water the flowers by washing vegetables and washing hands; When it rains, use pots and buckets to catch water, and save it for mopping the floor and washing the car later.

2. Brush your teeth: use a cup to receive water, and the rest of the water is used for washing clothes.

3. Laundry: 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.

4. Bathing: Take a bath with water intermittently, and turn off the water in time when scrubbing to avoid taking a bath for a long time. The water after bathing can be used for washing clothes, washing cars, flushing toilets and mopping floors.

5. Cooking: first wipe off the oil stains on cookware and tableware with paper, and then wash them; Control the flow of the faucet, and change the uninterrupted flushing into intermittent flushing.

6. Car washing: Wash the car with the water in the 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.

7. Toilet tank: You can put a 500ml water bottle filled with water in the toilet tank, and each flush can reduce the amount of water.

8. Multi-purpose of one water: firstly, wash rice with clear water, then wash vegetables with the water for washing rice, then wash the mop with the water for washing vegetables, and then wash the toilet with the water for washing the mop.

(3) Design water-saving signs to contribute to water conservation.

1. Teacher: We have learned many good ways to save water together. Have you learned these methods? Our country also attaches great importance to saving water, so we designed a water-saving sign. Let's have a look.

2. Teacher: Next, please ask the children to design a water-saving sign for the bathroom in our class to remind the children in the class to save water. How would you design it? (Individual children express their opinions) 3. Teacher: Then we will design around the theme of turning off the tap ... >>

Question 2: How did the tap water of the kindergarten science lesson plan come from?

1, by observing the phenomenon of water vaporization, we can understand the change of water and know where the water comes from.

2, understand the importance of water, establish the consciousness of saving water and protecting water resources.

3. Have the desire to explore and experience the fun of discovery.

Activities to be prepared

1, alcohol lamp, beaker, bracket.

2. There is a set of card operators. (Water → Steam → Clouds → Raindrops → Water)

3. Water cycle courseware, video of domestic water source and treatment process. I visited the river near the kindergarten in advance.

Activity process

Do experiments first, say discovery, and feel the phenomenon of water vaporization.

1, small experiment: the water is gone. Under the children's attention, carefully observe the phenomenon that the water in the beaker becomes less and less after boiling, and finally disappears.

Teacher: Where did the water go? Where will the water vapor in the sky go?

Second, listen to stories and watch courseware to understand the process of water cycle.

1, the teacher operates the courseware and tells the story "change, change, change".

(1) Teacher: What about the water vapor in the sky? What will it become when it meets cold air?

(2) Teacher: Where will the rain fall? Where will the water flow?

(3) Teacher: What has water become in the hot sun?

2. Teacher: Can you record it and tell everyone?

3. Children operate on the table and arrange the water circulation process.

4. Everyone exchanges their own operations and tells the changing process of water droplets.

5. Teacher's summary: Water turns into steam when heated. When it rises lightly into the air, it will turn into small water drops when it meets cold air. When water droplets get together, they will form clouds, and the clouds will get thicker and thicker. Coupled with cold air, it will become small water droplets. This is rain. Rainwater flows into streams and rivers, and after being irradiated by sunlight, it will become steam and rise into the air. This is how water keeps circulating.

Question 3: How to operate the activity goal of interesting water in the teaching plan of science open class in middle class;

1. Understand the traditional folk paper-cutting technology in China, feel the characteristics and aesthetic feeling of paper-cutting art, and sprout the love for China traditional culture.

2, like paper-cutting activities, boldly cut out all kinds of origami paper-cutting works for decorative activities, and try to create fun in paper-cutting activities.

Activity preparation:

1, tried to practice various simple paper-cutting activities with scissors.

Question 4: The lesson plan for the middle class 1 Who is the good friend of water? Writing teaching cases is a way for teachers to constantly reflect and improve their own teaching, which can make teachers more deeply aware of the key and difficult points in their work. This process is the process of teachers' self-education and growth.

2. The process of teachers writing teaching cases is the process of mutual transformation between external education theory and internal teaching theory, which can provide rich practical situations for new teachers and in-service teachers, help to integrate theory with practice in teaching and cultivate the ability to analyze and solve problems.

3. Teaching cases are a true and typical record of teachers' teaching behavior, a true embodiment of teachers' teaching ideas and concepts, a valuable resource for education and teaching research, and an important medium for communication between teachers.

Question 5: Where does the water vapor from kindergarten picture books come from?

1, understand the story, the dialogue between the sea, the pond, the children and the water droplets, and generate the consciousness of protecting water resources.

2, understand the harm of sewage to the environment, a simple understanding of the method of protecting water resources.

Activity preparation:

Story courseware of "Little Water Drops Find Home", pictures of water pollution, little water drops.

Question 6: The teaching plan design intention of nave's story of finding water and drinking water;

In our daily life, water has brought us endless fun and convenience, and it is an indispensable friend of human beings. Water is the source of life and the most basic condition for human beings, animals, plants and even microorganisms to survive. Many countries and regions in the world are facing the danger of water shortage, and many cities in China are also facing the problem of water shortage. For us children who are located in the south of the Yangtze River, they think that water is inexhaustible, and they simply don't understand what water shortage is. They think that water will come naturally as soon as the tap is turned on. In daily activities, we will also find some children's waste: for example, when drinking water, we fill a cup and pour it out directly if we can't finish it; When washing your hands, the faucet is turned on very loudly, and it won't turn off when you see the faucet dripping ... The outline points out that social learning has subtle characteristics, and children's learning is mainly through accumulating relevant experiences and experiences in real life and activities. To this end, this activity makes children understand the importance of water and the difficulties after water shortage through the ways of recalling, watching, experiencing, exploring and thinking, so as to save water and protect water resources.

Activity objectives:

1. Perceive the close relationship between water and human beings and understand the preciousness of water.

2. Experience the hardships of transporting water and understand the methods of saving water.

3, can actively imagine ways to protect water resources, willing to participate in protecting water resources.

Activity preparation:

1, the day before the activity, children experienced the inconvenience of life after water was cut off at home.

2. Movable slides: pictures related to water shortage and water transportation, videos related to water waste, and experience music.

3. Water transport experience materials: buckets, basins, balance beams, chairs, etc.

4. Look for pictures, books and computers that waste water.

5, brushing your teeth, washing your face, cooking and other related pictures and related brushing cups, washbasins, pots, etc.

Activity flow:

1, share the experience of "a day without water" and understand that people's lives cannot be separated from water.

Teacher: Kid, when the teacher got up this morning, he found that there was no water supply at home. Have you ever stopped the water supply at home? What will happen after the water is stopped? What will happen?

Child 1: There is no water to brush your teeth and wash your face in the morning, and your face is dirty.

Child 2: After the game, my mouth was dry and there was no water to drink.

Child 3: Sweat, smelly, want to take a bath without water.

Teacher: How do you feel after the water stop? Why?

(Comment: After children have the experience of water cut off, they feel the importance of water in our life. Its multiple functions are closely related to our human life. )

2. Experience the hardships of "10m water transport" and draw the conclusion that "water is the source of life" through comparison.

(1) Watch related pictures of water-deficient areas. (Slide 1)

Teacher: Sometimes it's inconvenient to stop water for a day at home. In some areas of our country, there is a serious shortage of water. The teacher brought some photos taken during the drought in southwest China to see what the lack of water made there look like.

Teacher: What do you see?

Child 1: I saw the soil cracked, because there was no water, it became pieces.

Child 2: All the grass died when I saw it.

Child 3: All the fish are dead.

Teacher: Why do fish die?

Child 3: Water is dry. Fish can't live without water.

Teacher: What role do you think water plays in life when children see these pictures?

The teacher concluded that water is very important to our life. Not only do people need water, but animals and plants also need water. They can't live without water. Water is the source of life.

(Comment: Children in water towns in the south of the Yangtze River simply don't know what water shortage is. In real photos, children see what water shortage is, give them an intuitive experience, know that animals and plants can't survive without water, and understand the value of water. )

(2) Look at pictures of people carrying water. (Slide 2)

Teacher: In order to make a living, people in some places can wait for the waterwheel to carry water, while people in some places can only walk a long way to carry water every day to see what the road is like. What do you think of walking with your back to the water? Let's try it together.

(3) Experience the hardships of carrying water.

Experience process: bypass big stones, walk through narrow mountain roads and cross deep ditches. (See site layout)

Teacher: What do you think of the water delivery just now? How does it compare with them?

The teacher concluded: our children felt it after walking this short distance of more than ten meters.

Very tired, people here have to walk thousands of meters and tens of thousands of meters every day, and ... >>

Question 7: The design background of the activity of "Water Mood" in the middle class science lesson plan.

Many children like to play with water, especially after it rains, they like to face the water.

Stepping on it, the spray excited them. In order to satisfy the children's desire to explore, I designed this activity on the basis of their existing experience.

moving target

1. In trying activities, I feel that water is colorless, odorless, transparent and flowing.

2. Understand the melting phenomenon of sugar, salt and other substances.

3. Cultivate children's spirit of loving science and being willing to try.

Teaching emphases and difficulties

Teaching emphasis: 1. Perceive that water is colorless, odorless and transparent.

2. Understand the melting phenomenon of sugar, salt and other substances.

Teaching difficulties: 1. Understand the melting phenomenon of sugar, salt and other substances.

Activities to be prepared

1, a glass of water, a glass of milk, snowflakes.

2. Sprinklers, baskets and perforated plastic bags.

3, disposable transparent cups, spoons, sugar, salt, iron, plastic, towels and others.

4. photos of water babies

Activity process

First, the teacher lead-in theme:

Teacher: A little guest came to our class today. Look who it is, children. (Show pictures of water babies)

Teacher: Do you like water babies? Sleeping treasure has many secrets. Do you want to know? Then let's explore the secret of water together.

Second, the exploration activities (a)

1, smell and taste.

The teacher shows a glass of water and a glass of milk. Children can feel the characteristics of water by looking, smelling and tasting (water has no color and no taste, while milk has color and taste).

Step 2 guess

Teachers put colored snowflakes in glasses filled with water and milk respectively. Let the children guess what is in the water. What's in milk? how do you know Teacher: Just now we discovered a secret of water. It turns out that water is colorless, odorless and transparent. Now let's play with the water again and see what you will find.

Exploration activities (2)

1, water sports

Please use watering cans, baskets and perforated plastic bags to hold water.

Teacher: Today, the teacher prepared a lot of things for children to play with water, including flowerpots, baskets and plastic bags with holes for watering flowers. Now please use them to hold water and see if you can hold it. Why? (Guide the child to tell the result, and the water will flow)

Teacher: Then let's see if the water will run. (Teacher's operation) Fill water with a watering can, a basket and a perforated plastic bag.

The teacher concluded: It turns out that water is really flowing. The children are great, so what's the secret of water?

2. Dissolution experiment

(1) Please put the sugar, salt, iron and plastic products on the table in your own cups, and then tell everyone what you put.

(2) Let the children stir in the cup with a small spoon and have a look. What will you find?

(3) Children try to operate, and teachers tour to guide children to carefully observe the changes of objects in the water and exchange experimental results with each other.

(4) Let the children tell the experimental results.

Teacher: Now the teacher asks some children to come to the front and tell everyone how much you can see in your cup. Where are some other things? (Guide the children to say that several things are dissolved by water)

Teacher: Then let's see if these things will be dissolved in water. (Teacher's operation) Put sugar, salt, iron and plastic into the glass respectively.

The teacher concluded that sugar and salt are indeed dissolved by water.

3. Diffusion thinking: Have you ever seen anything dissolved by water in your life?

Three. abstract

Teacher: Today, we discovered many secrets of water. It is colorless, odorless, transparent and mobile, and some things will be dissolved by water.

Fourth, activity extension.

Ask the children to talk about how to use water and protect its cleanliness.

Teaching reflection

People can't live without water, and children are very interested in water. Children's enthusiasm in this activity is very high, and they can boldly try to use various operating materials to operate. In the activity, I first let children observe, discover and think, satisfy their curiosity, desire to explore and desire to try, emphasize the principle of taking children as the main body, and let children learn while playing.

At the beginning of the activity, I first showed my little guest, the water baby. Let children explore the treasures in the water ... >>

Question 8: Where does the water vapor from kindergarten picture books come from?

1, knowing 1 and multi-perception can be divided into 1 1,1and multi-perception.

2. Encourage children to participate in activities and tell stories boldly.

Activity preparation:

1. Set the scene in advance: radish field, toy city, bear house.

2. A big tree with as many leaves as a child.