Telling of water droplets

First, the content of curriculum standards

According to Article 7 of Curriculum Standards, "Live responsibly and lovingly" and "Talk about water droplets" cherish public property and other people's labor achievements, and save resources such as water, electricity and paper. Article 9 Try your best to protect the surrounding environment and have a preliminary ecological awareness. Article 1 in "Live creatively and creatively": curious and like to ask questions; Article 2 Interested in exploring natural phenomena or problems in life; Article 4 can put forward their own views or suggestions to solve problems; Article 1 1 can summarize and improve the acquired experience and information with the help of teachers.

Second, teaching material analysis

The ninth lesson "Telling about Water Drops" follows the perspective of the relationship between man and nature in the second volume of Grade One, and pays attention to the water that is always indispensable in daily life, which is completely different from the practice of just treating water as an available resource. On the contrary, it regards water as an important part of life and the existence of * * *. Encourage students to cherish water resources by singing "water drops" and telling stories about misfortune.

Third, the analysis of learning situation.

Because of their young age and little life experience, the second-grade children only know that the water they usually use is tap water, but they don't understand that the water resources on the earth are limited and the water on the earth is very precious. We also pay little attention to the pollution status of water resources. We need to cultivate students' daily habits of saving water and legal awareness of protecting water resources. Let students brainstorm the specific methods of personal water saving in life, guide students to discover the creative water saving practices of the country and society in real life, and infiltrate the scientific concept of water use from an early age.

Fourthly, the difficulties in teaching.

Key points: let students realize the preciousness and hard-won of water; Master the specific methods of saving water in life, cultivate students' awareness of saving water in real life and put it into action.

Difficulties: Perceiving the lack of water resources; Understand creative ways to save water.

Five, teaching preparation

Teacher: Courseware, square paper, sponge, water cup, plastic plate, tap water, polluted water.

Student: Water bill, watercolor pen.

Sixth, the teaching process.

first kind

Course objectives:

1. Understand the relationship between water and people's lives and perceive the importance of water resources.

2, a preliminary understanding of the current water crisis, understanding the preciousness of water resources.

Introduction: sensitive little ears

Teacher: Students, today, the teacher brought a friend who lives with us every day. Close your eyes and listen carefully. Who is here?

Health: water drops

Teacher: I'll tell you when the water droplets are full! Let's listen together.

Activity 1: I am precious.

1. I'm too important.

Teacher: When do you use water in your life?

Student 1: Eat and drink.

……

Teacher: It seems that we can't live without small drops of water in our daily life! The role of water droplets can be great, let's listen to its self-introduction!

Teacher: Why does the water drop compare itself to "the blood of the earth, the source of life"? The secret is hidden in textbooks P34 and P35. Find out what you found.

Health 1: crops turn green where there are small drops of water;

Health 2: Where there are small drops of water, trees grow green;

……

Teacher: After careful observation, you not only found the secret of water droplets, but also found the difference between places with and without water droplets through comparison.

Design intention: To understand the relationship between water and people's lives.

2. I am too scarce

Teacher: Xiaohong lives in the city, but why does her family say that there is not enough water and she needs regular water supply?

Teacher: Xiaoming's home is on an island, which is surrounded by water. Why should we cherish every drop of water?

Health: because of lack of water;

Health: Don't drink seawater. ...

Teacher: Isn't the earth a big water polo? Three parts of land and seven parts of ocean, how can there be water shortage?

Health: ...

Let's draw a picture together. There are 100 small squares on this paper, which represent the total amount of water on the earth, 97 of which are seawater, but it is difficult for human beings to live directly with these saltwater. Only three squares are fresh water, please use a light blue pen to color the fresh water! However, the fresh water in these three compartments cannot be used directly, because some of them are hidden in solid glaciers, some are hidden underground, and only a small part can be used directly. To what extent? We need to divide these three squares of fresh water into 1000 squares, and then find out three squares and draw them. Please try to draw it. If you can't draw it, let's use a point to represent it! This is about the amount of fresh water that can be used directly on the earth. Do you think it is more or less?

Design intention: let students know the scarcity of fresh water resources on the earth.

Teacher: Since there is so little fresh water on the earth, people may not feel its scarcity in their lives.

Where do we usually use water?

(Water pipe-water plant-reservoir)

Teacher: It takes a long way for the water in the reservoir to reach the waterworks, and then it is purified through many strict procedures before it can be turned into tap water and enter thousands of households. Do you think it is easy to get water?

Teacher: China is one of the countries with serious water shortage in the world, and many cities in China are seriously short of water. In order to solve the problem of people's draught in water-deficient areas, the state has built the "South-to-North Water Transfer Project" to divert water from the south to the north. Because there is more water in the south and less water in the north. Anyang is also a city seriously short of water, and now most of our areas eat water from the South-to-North Water Diversion Project. But it takes a long way for water to flow from Danjiangkou Reservoir in Hubei Province to us. How far is it? Who has been to Beijing? It is farther than the distance from Anyang to Beijing.

Teacher: Knowing that every drop of water is hard to come by, what should we pay attention to when using water in our life?

Design intention: let students know that water in life is hard to come by.

Teacher: What's this? Who knows what it does? Take out the water bill you collected and see how many tons of water you used at home that month. How much did you pay for water? Look at the water bills of other students in the group and think about the relationship between water consumption and water charges. What should I do if I want to pay less for water?

Design intention: let students know that water is precious, and saving water can reduce living expenses.

Teacher: It is difficult to find tap water in our city. What will it be like to live in the countryside or mountains? Please read the picture book Grandpa's Face Wash by yourself.

Teacher: What details about water shortage did you find in the story? Have you ever been short of water? Tell me how you feel.

Teacher: There are still some places in China that are seriously short of water. How do people live there? Please look at the next set of pictures.

Teacher: Seeing these situations, the teacher is very sad. What are you thinking at this moment?

Design intention: Let students know that water is precious. At present, people in some areas live in a water-deficient environment, thus stimulating students' awareness of water conservation.

Activity 2: I suffered misfortune.

1. Water is so precious, but some people don't cherish it, which makes colorless, odorless and transparent clean water like this. Why? Please be a detective, read P36 in the book, and find out what misfortune happened to the little water drop.

2. What other misfortunes have you encountered when you saw the water drops in your life?

Health: Dumping garbage into the river ...

3. What is the wastewater in life? What will happen if they are discharged into rivers and pollute the water quality?

This is a photo of industrial wastewater discharge, which maybe we don't often see in our life. However, these wastewater are more destructive to water resources because they contain toxic components. In polluted rivers, plants can't grow and fish can't survive. Faced with such a situation, what do you think should be done to help the little water drop?

5. In case of fire, you can call 1 19; in case of disease, you can call 120; which phone can you call to report water damage?

Design intention: let students know the present situation of water pollution and infiltrate legal consciousness.

6. This lesson heard the story of a small water drop. What do you want to say to it?

Seven, blackboard design:

Second lesson

Course objectives:

1, to understand people's creative use of water in green city life;

2. Creatively discover ways to cherish and save water in daily life, and form a corresponding lifestyle.

Activity 1: Come and help me.

1. Through the study in the last class, we know that the fresh water that can be directly used on the earth is scarce, and the water we usually use is hard-won and precious. What should I do as a small water-saving guard? Please look at the picture below. You are a small drop of water now. When you see the right way, please smile and give a compliment. When you see the wrong way, show it with a crying expression and mark it with an X.

2. Are there any other phenomena of wasting water around you?

3. Clever, do you have any good ways to solve the problem of wasting water?

Health: induction faucet ...

Water brings life and benefits human beings, but sometimes it also brings disaster. This is the "July 19 flood" in Anyang in 20 16. Who can tell us what we saw at that time?

There are many places like us all over the country. In order to avoid this kind of disaster, we can make better use of rainwater. Now, China is innovating urban transformation, creatively saving water and making life better through scientific water use. Do you know any methods? What is a "sponge city"? I asked two little assistants to help me do an experiment:

Experiment 1: Take a smooth board and pour water on it, and the water will flow into the cup.

This board is like our concrete floor. When water flows on it, it will run away.

Experiment 2: Pour water on the sponge. After the sponge absorbs water, if water is needed, the treated water can be reused. If only the city could be like a sponge, which could store rainwater and release it when needed. China is building such a city. Let us know exactly what it is like.

Anyang is also building a "sponge city". What changes have you seen around us?

Activity 2: Strive to be a small water-saving guardian.

1. Understanding the "sponge city" lets us know how the city creatively uses water resources. Can we create a "sponge family" and save water creatively at home? Do you have any methods?

2. Show students a short video about saving water at home.

3. Make a family water saving plan.

We have come up with so many ways to save water. The key is to take action in our daily life and form a good habit of saving water. I also hope that everyone can remind your family and friends to act together and be a little guardian of saving water. After class, I will make a family water-saving plan with my parents and keep a diary. After two weeks, everyone got their own water-saving achievements.

Seven, blackboard design:

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