Three teaching plans of water and oil, a scientific activity for large classes in kindergartens.

# Teaching Plan # Introduction Oil and water are common things in daily life. What happens when oil and water are mixed together? I have prepared the following lesson plans, hoping to help you!

Part I

Activity objectives:

1. Observe the phenomenon that water and oil are immiscible when they are mixed, and stimulate the interest in exploration.

2. Understand what can remove oil stains and broaden children's horizons.

Focus of activities:

Children begin to operate and come to the conclusion that water and oil are immiscible.

Activity difficulty:

Children can operate in the experiment, and find out what happens to oil and water in the cup, what happens, and draw conclusions.

Activity preparation:

1. Children have a preliminary understanding of washing products.

2. One set of beakers and stirring rods for each person; Four parts of oil, water, washing powder, detergent, fruit and vegetable net, hand sanitizer, soapy water, sprite and salt; Each person has a towel with oil stains; Connection tag card.

3. Making courseware: Chickens and Ducks Bathing

Activity process:

1. Beginning part

1. Asking questions:

1. Teacher: Children, what's in the cup on the table? (water and oil)

② Teacher: Then what are their uses?

2. Since oil and water have so many uses, let's have a fun experiment. Think about it, children. What will happen if you pour oil and water into the cup in front of you? (children guess and answer)

3. Children begin to operate and draw conclusions. (Teacher's guidance: You can pour water or oil first; You can use more oil, more water, or the same amount to see what happens to oil and water in the cup.)

4. Summary: Water and oil are immiscible with each other. No matter what method is used, oil is always on the top and water is on the bottom.

Second, the basic part

1. Give some common examples and play the courseware "Chickens and Ducks Bath" to introduce the phenomenon that oil and water are immiscible in life and deepen the impression of children. Question:

① What happened to the feathers of chickens and ducklings when they were in the water?

② why? Because the duckling's feathers have a protective oil layer, water can't invade it. As soon as their feathers shake, water slips off their feathers, so the duckling is dry when he takes a bath. However, there is no such protective oil layer on the chicken feathers. As soon as the chicken reaches the water, the feathers are soaked and become a drowned rat. )

2. Children can operate and perceive the items that can remove oil stains.

① Just now, children talked about many benefits of oil, but sometimes oil will bring us a lot of trouble. I accidentally spilled oil on my clothes when I was eating yesterday. Is there any way to get rid of the oil stain?

② Show the prepared objects and ask the children to talk about what can be dissolved in water and can remove oil stains.

③ Ask children to remove oil stains from towels, and come to the conclusion that washing powder, detergent and soapy water can remove oil stains, and they have the same name as washing products.

third, the end part

1. Question: What other washing products do children know? Every washing product has different functions. Do you know their respective functions?

2. Connect the tag card: Each child has a connection card under the chair, on which are washing powder, detergent, hand sanitizer and fruit and vegetable cleaner. Think about what they are used for, and then connect them with the fruits, clothes, bowls and hands below with a straight line.

Part II

Activity objectives

1. Feel the phenomenon of oil and water dumping and separation after stirring through operation, and be interested in scientific exploration activities.

2. Understand the related phenomena of oil and water separation in life and experience the application of scientific knowledge in life.

3. Cultivate children's curiosity about things and be willing to explore and experiment boldly.

4. I am willing to try boldly and share my experience with my peers.

5. Stimulate children to explore the fun of scientific experiments.

Activity preparation

1. Children each have a glass of water and a cup of oil, and children each have a blue and black pen.

2. Each person has a stirring tube, a background music,

3. Some painted pictures, various colors of paint water and so on.

activities are important and difficult

emphasis: preliminarily understand the incompatibility between water and oil.

difficulty: compatibility and incompatibility of different substances in water.

activity process

1. Introduction

Teacher: Today, the teacher brought you many little guests to play games with you. Do you want to know who they are?

(thinking) ok, let's go and see who is there. (The teacher introduces the experimental materials)

Second, let the children operate, pour the blue and black pen water into a glass of water, and observe the changes between them.

teacher: before doing the experiment, the teacher has requirements. Please listen carefully. Please pour blue and black pen water into a cup of water and observe carefully. What will happen to them?

1. Question: What did you find? (They melt together and turn into black water)

Teacher: Is that what you said? Let's verify it together. (The teacher verified the experimental results)

Summary: You observed it very carefully. Yes, blue and black pen water were poured into the water, and they melted together and became black water. Which means they can melt together. ) explain the meaning of "melting". When one object and another object are combined, they can be dissolved. If they can't be combined, they are separated. )

Third, let children think about what happens when oil and water are poured together.

teacher: guess and think about it. What secrets will you find when you pour the oil into the melted water? I don't know. Now please pour the oil into the melted water and observe carefully. What is the change between them?

Question: 1. Can oil and water melt together?

2. Why?

teacher: is that true? Then let's verify whether you found this. (The teacher verifies the experimental results again)

Summary: Because the specific gravity of oil and water is different. No matter whether you pour water or oil first, the oil floats on top of the water and the water is below the oil. It shows that oil and water can't be together, they are separated < P >.

fourth, extend, ask children to play with the painting of "oil-water separation" and imagine why the paint water will not be mixed with the oil pastel.

Conclusion: Your performance is excellent. What other objects are compatible in our life? Which ones are miscible? Let's look outside together!

Part III

Activity objectives

1. We know that oil is insoluble in water through experiments.

2. Cultivate and stimulate children's hands-on operation and interest in scientific activities.

3. Learning, knowing and understanding vocabulary: integration and separation.

4. Explore the characteristics of various painting materials (gouache pigments, oil painting pigments, crayons, etc.).

5. Stimulate children to explore the fun of scientific experiments.

Activity preparation

Teaching AIDS:

1. A small cup of water, milk, red water, blue water and oil.

2. A picture, a basin of clear water and an empty basin

School tools:

(1) Desktop: a small bowl of oil, red water, red water and blue water with half cups each

(2) Bottom of the table: a basin of clear water and an empty basin

(3) Two transparent cups for each child.

3. In the preparation of cotton swabs and white paper teaching AIDS, the concentration of colored pigment water should be well controlled so that its color can be better reflected in clean water. Choose dark pictures, so that children can clearly observe the images displayed through water and cups.

The preparation of school tools needs to prepare a set of experimental tools for each child, so that each child can operate by himself and experience the fun. Clear water and empty pots can be provided at one table for everyone to use. It is advisable to choose a cup with a stable bottom for a transparent cup, so as to prevent children from spilling water after encountering it in operation.

Activity process

1. Consolidate existing knowledge and experience

1. Show water and ask: What color is water?

through the glass and through the water, you can clearly see the contents of the picture. In order to help children understand that water is transparent.

Please make a summary by yourself and tell the characteristics of water, knowing that water is colorless, transparent and mobile.

Show me the milk again. Question: Just now, the color of water was colorless. Please tell me what color the milk is.

children's induction.

design intent: children have gradually come into contact with and know about water since small classes. Therefore, this series of operations is carried out by teachers and summarized by children, which not only exercises their observation ability, but also further deepens their skills of summarizing the results produced by scientific experiments in language.

second, practice the method of holding and pouring water. Teacher: Ask the children to put the small cup near the big bowl, and then gently put the water from the big bowl into the small cup with the spoon on the table. Let's see who can prevent small drops from sneaking out of the basin.

design intent: it is the nature of most children to play with water. When children see the spoon and cup on the table, they can't resist the urge to reach out and try. In order to let children focus on the next scientific experiment, let them try the little fun of holding and pouring water from the beginning. While helping children understand the characteristics that water can flow, they should also prepare for some operational needs in the following activities.

third, the integration of small experiments.

1. Teacher: Kid, what color will it become if red water is added to clean water? Children make guesses.

children operate and get the correct result: after adding red water to clear water, it becomes red water.

in the same way, understand the changes after clear water and * are mixed together.

learn a new vocabulary: "integration"

2. Children do it by hand. Please show it to individual children.

Please use the new word "fusion" for children to summarize and conclude the operation just now.

design intent: through the mixing of water and colored water, children can understand the meaning of mutual integration. At the same time, it paves the way for another new word "separation" below.

fourth, the oil-water separation experiment shows peanut oil teacher: please tell the children what color peanut oil is on the teacher's hand?

Through observation, we know that peanut oil is transparent.

teacher: what will happen if you put it with water?

children make predictions and explorations.

teacher: in order to prove whether the children's ideas are correct, please do a small experiment now. Put half a glass of water in the glass, and then put a spoonful of oil in the glass, and see what happens.

children operate and stir by hand.

summarize by children. Teachers guide children to say: oil and water are separated, water is below and oil is above.

learn a new vocabulary: "separation"

teacher's summary: oil is insoluble in water because it is lighter than water.

design intent: the experiment of oil-water separation is the focus of the activity design in this section, so it takes a long time in the activity. First, children observe the characteristics of oil, then guess the changes after mixing, and then operate again to get the correct result. Finally, children sum up and the teacher tells the secret that oil and water can't be combined. All the processes are carried out by children, which conforms to the age characteristics of large class children and fully demonstrates their ability to use their brains and hands.

V. Activity Extension

Teacher: Today we are going to draw an interesting picture. The tools are cotton swabs and oil. Please draw a picture you like with a cotton swab dipped in oil on white paper. After blow-drying, brush it on the white paper with the red and red pigments that we just merged together, and see how wonderful the finished work will be.

Design intention: Using the method of oil-water separation, through the display of painting works, we can more directly experience the fun of different styles of painting.

VI. Explore activities to find out some tools about oil and water in our daily life, and bring convenience to our lives.