1. Feel the method of blowing bubbles and try to blow bubbles with different tools. It is found in practice that everything with holes and gaps can blow bubbles.

2. Be able to actively try, boldly imagine and explore self-made tools for blowing bubbles. 3. Cultivate children's learning autonomy and experience the fun of discovery in the process of exploration.

Activity preparation:

Bubble liquid, straws, plates, towels; A fly swatter, a colander, a comb and a brush; There are some wires and leaves.

Activity flow:

1. Introduce and introduce topics in the form of dialogue.

Do you like blowing bubbles, children? Do you want to blow many bubbles here today? Do you want to? ! How to blow bubbles? The teacher prepared materials for the children to blow bubbles. Let's see which teachers demonstrate the action of blowing bubbles. Please try it yourself! See who can successfully blow out bubbles first! Children should make a request before blowing bubbles: when blowing, they should leave the straw from the plate and let the bubbles fly. The child's operation is the teacher's patrol to remind the child to blow out the air when blowing bubbles. Don't suck bubble liquid into your stomach, or you will have a stomachache. When blowing bubbles, don't blow them into other people's faces, and don't blow them into your own face. If you accidentally blow it on your face, wipe it with a towel.

2. Create a space for free exploration and master the basic skills of blowing bubbles.

Did the bubbles blow out? Successful children think about how to make bubbles blow bigger and bigger. Did you enlarge them? Think about how hard you have to work. Do you blow hard or gently? Did everyone blow bubbles? Children who blow bubbles, please put the straw in the blue basin in front of you.

Summarize the experience of blowing bubbles with children. Now I ask the children to talk about how they succeeded just now. Teachers and children demonstrate and summarize the experience of blowing bubbles together. Dip it in the bubble liquid, and then breathe gently ... with a little force and a little longer blowing time, you can blow out bubbles. That's what you all do, right You did a good job.

3. Encourage children to try boldly and feel the characteristics of bubble blowing tools.

So is there anything other than a straw that can blow out bubbles? Did you use anything else to blow bubbles? I brought something. Have you seen it?

Show me the fly swatter. "What's this?" (Fly swatter), what is it used for? Show me the colander. What is it used for? (It's for jiaozi and Tangyuan). Show me your shoe brush and comb. Do you think these four things can blow bubbles? Let's prove it with facts and see if it's as different as you think. Put it in the basket if you can, and put it in the bag if you can't. We must try these four things. Where did you successfully put them? Where did you put the unsuccessful?

Teachers individually observe children's free exploration and give appropriate help and tips. "Give it a try if you think so. If it succeeds, remember to put it in the basket in front. Try something else in the bag. You can try it several times. It doesn't matter if you can't blow it out. You can stay in the bag. " Help children sum up experience: as long as there are holes and gaps, things can blow bubbles.

Ok, is everyone blowing bubbles now? Now, do children say that fly swatter and colander will blow out bubbles? Why can they blow bubbles? Where does the bubble come from? It turns out that both the fly swatter and the colander have holes that can blow out bubbles. Anything with holes can blow bubbles. "The bag is full of tools that can't blow bubbles, right?" Let's share what can't blow bubbles in the bag. What's left in his bag? (Brush) Well, he thinks that the brush can't blow bubbles after the experiment. Did you disagree with his children? Then try it and tell him if he can blow bubbles. Just try it with his brush and guide the child to blow from the front of the shoe brush: Have you observed where he dipped in bubble liquid and blew it? Let's try it from the place where there are many gaps in the front of the shoe. Did the bubble succeed? Now, children with brushes in their schoolbags, do you think we should put the brushes in our schoolbags or in the success basin? Do you want to try again? When the child operates, prompt the child to demonstrate. Doing experiments is like this. Maybe not once. We need to try again and again, maybe we will succeed!

Is there anything different in the bag except the brush? Take out the comb. He thinks that combs can't blow bubbles. Who has a different opinion? Just try it. Do you feel successful? Where does the bubble come from? Oh, combs and brushes can blow bubbles out of the cracks. The child with a comb in his bag tries again. If they succeed, put them in the blue basin (if the child blows bubbles from all the tools: just ask). Can a shoe brush and comb blow out bubbles? Where does the bubble come from? (in the eyes), are all these four things bubbling now? That is to say, as long as our tools have holes or gaps, we should be able to blow out bubbles, right?

4. Try to blow bubbles with leaves and make bubble blowing tools.

Show me the leaves. Can leaves blow bubbles? Then what can you do to make the leaves blow bubbles? Please think about it and have a try!

What must be the tool that can blow bubbles? (There are holes, holes and gaps) Remind children that they can pinch with their fingers, poke holes with straws and ask questions. Your hole is different in shape. Are the bubbles blown out the same? What shape is it?

Ask children to sum up their experience and introduce the method of blowing bubbles with leaves. Are your leaves bubbling now?

"As long as you dig a hole or gap in the leaf, you can blow bubbles." 5. Guide children to change the shape of filaments to blow bubbles and feel the relationship between different materials and bubbles. "I have another treasure here. What is it? " 1) Can you turn magic into a tool for blowing bubbles with thin wires?

You can make tools by twisting, winding, twisting and folding. Who wants to be brave?

2) Did you succeed? What is the bubble blown out? (Learn from other people's experience, choose a favorite way to change the shape of the wire and play the bubble blowing game) Guide children to observe: After you successfully blow out bubbles, change the shape of the wire to see if the bubbles blown out have changed. What shape is it? It turns out that no matter what shape we are, the bubbles blown out are round.

Activity objectives:

1. Observing the characteristics of induced bubbles, we know that the bubbles blown out by bubble devices with different shapes are all round.

2. I will record my guesses and experimental results by recording.

3. I am willing to share with you the preparations for the event:

Children's materials: blowing bubble water and small cups (with small handles) 16, black watercolor pen16; Several different shapes of bubble blowing machines; 16 child record form; 16 cloth bag, 16 sketchpad or brick slate; Teacher's material: magnetic blackboard; A square, a semicircle, a triangle and a star bubbler; Record the activity process of 1 piece and a marker:

1. Blow bubbles to arouse children's interest.

Introduction: "What is the bubble I just blew? What kind of bubbler do I use? "

2. Set the problem situation to arouse children's thinking 1. Show the bubble device and guide the children to observe. "The teacher also brought three kinds of bubble devices. Let's see what it looks like. "

2. Make a guess when you know it. Question: "What kind of bubbles may be blown out by square, semi-circular and triangular bubble devices?"

3. Introduction forms, children's records.

1. Displays the record form. Question: "What kind of bubbles will be blown out by semicircular, triangular and □ shaped bubblers?" (The teacher puts the corresponding bubbler on the record sheet) "What does that little question mark mean?" "The little question mark indicates our guess, and the children record the appearance of the guessed bubble behind the little question mark."

2. Children record their guesses.

Children express their guesses, and teachers record them on a big record sheet.

4. Children's operation experiment.

1. Teachers and students discuss the requirements of recording and operation. Description: "Try all three kinds of bubblers, remember to make an experiment record once, and send the bubblers home after each experiment. How do we need to use bubblers and foaming liquids? " (Guide the children to discuss) 2. Children experiment, the teacher observes and reminds children to record the results.

Verb (abbreviation for verb) communicate, discuss and expand.

1. Classified display record table.

Children introduce their findings and talk about whether the conjecture is consistent with the experiment. Q: "Is your discovery the same as your guess?" Teachers record collectively on large record sheets. The teacher concluded: "It turns out that our guess will be different from reality. We found that the bubbles blown out by square, semi-circular and triangular bubble blowers are all round. "

3. Show bubbles of other shapes and guide children to guess and experiment.

(1) Show the bubbler and guess. Explanation: "Teacher, here are some bubble devices. Guess what shape the bubbles they blow out will be? "

(2) Children's experiments show that the bubbles blown out by the bubbler are all round. Description: "It turns out that bubble makers of any shape blow out round bubbles. I also have a bubbler here (show me a star bubbler). What shape bubbles will be blown out? "