As a silent dedication of educators, often have to prepare lesson plans according to the teaching needs, through the preparation of lesson plans can be better according to the specific situation of the teaching process to make appropriate necessary adjustments. How should a lesson plan be written? The following is my compilation of large class science activities "blowing bubbles" lesson plans, only for reference, welcome to read.
The science activity "blowing bubbles" lesson plan 1
Activity objectives:
1, through exploration, know that materials with holes can blow bubbles, and find that different shapes of holes blow bubbles are round.
2. Through conjecture and verification, develop interest in scientific activities.
Activity Preparation:
1, children have played the game of blowing bubbles.
2, whiteboard courseware.
3, with holes blocks, straws, keys, leaves, toys, lead wire, bubble water, pots, rags and other materials.
Activity focus:
Through exploration, know that materials with holes can blow bubbles, and find that different shapes of holes blow bubbles are round.
Activity process:
First, talk about the introduction, stimulate children's interest.
1, teachers and children listen to the "blowing bubbles" song into the activity room.
2, the teacher blew a bubble.
Teacher: children, have you ever blown a bubble? How did you blow it?
Summary: Oh! Blowing bubbles is to be dipped in water, to the small mouth, gently blow a blow. However, bubble water is harmful to our skin, so be careful when blowing bubbles, don't touch the bubble water in your mouth, and don't blow at children.
Teacher: Today we will blow bubbles together, okay?
Two, experimental exploration, cultivate children's interest in scientific activities.
1, experiment 1: guess and verify, which things can blow bubbles.
(1) Guess the results of the experiment.
Show the class.
Teacher: Here are some materials, see what are some?
Show the record sheet.
Teacher: Wow! So many materials, guess what can blow bubbles?
(2) operation verification.
① Teacher: think blocks, straws and other materials can be blown out of the bubble, some children think it can be, some children say no, then we will try.
② requirements: remember! Try a record of one, can blow bubbles on the record sheet to play "√", can not blow bubbles to play "×". Good! Start.
③ Teacher: who said their own experimental results. Are you the same as them? This some say can blow bubbles, some say can not, let's try together.
Summary: It turns out that these things have holes, bubbles are out of the holes, put the holes completely into the bubble water, take it out and you can blow bubbles.
(3) Try to make a bubble blower.
Teacher: leaves and lead wire can not blow bubbles, because they do not have holes, so do you have any way to make them can also blow bubbles? Think about it, and then try with your way.
Teacher: your way to blow bubbles? What is your solution?
Summary: great! All brainstormed a way to bend the leaves or poke a hole in the lead wire bent around a hole into a bubble blowing toy.
2, Experiment 2: Conjecture and verify that any shape of hollow objects can blow round bubbles.
Show the pentagram, love, square and round bubble blowing toys, to provoke children to explore the different shapes of the bubble blowing are what shape.
(1) Guess the results of the experiment.
Teacher: Today the teacher also brought some different shapes of toys, see what shape? Guess what shape the bubbles blown from these different shaped toys will be? Draw the shapes on the record sheet.
Teacher: What is your answer?
(2) Operational verification.
The children carry out the experiment and the teacher observes.
Teacher: some children say that the toy is what shape, blow out the bubble is what shape, then we try, each material to try, write their results on the record sheet, try the same record, what shape is what shape to draw.
Teacher: What is the shape of the bubbles blown by different shapes of toys?
Summary: Oh! It turns out that any shape of toy can blow a round bubble.
Three activities to extend the knowledge.
Teacher: Today we played the game of blowing bubbles, happy? Then now we go to the sun to blow bubbles, see what changes in the color of bubbles, go!
Activity Objectives:
1. Explore the production of blowing bubbles and how to make bubbles blow big and change.
2, actively involved in the activities, try boldly, can use language to express the process of operation.
3. Feel the joy of success and be interested in science experiments.
Second, the activities of the preparation:
1, bucket, washing powder, detergent, soap powder, shampoo, water.
2, a variety of straws, rags. Sugar, vinegar one per group.
3, "Beekman's World" DVD three, the activities of the process:
(a) the beginning of the part of the 1. Teachers blowing bubbles to each group, arousing the interest of children.
(Teachers blow bubbles to their own way to arouse the interest of young children, young children were immediately infected with emotion, are trying to catch bubbles.) 2. Teacher: You also want to blow bubbles? Then, let's do a good job together?
(In this session, the desire of the children to make their own bubble blowing liquid is stimulated.) 3. Teacher: What do you need to make bubble blowing liquid?
Teachers: the original laundry detergent, soap, shampoo, body wash, detergent, hand sanitizer and water can be made into blowing liquid.
Second, the children experiment (a) try to make blowing liquid 1. Teacher: Teacher prepared soap powder, soap, shampoo, body wash, hand sanitizer (said while showing) you can choose any one to make blowing liquid. See which children do it clean and fast, and used up things can be put back to the original, do successful immediately after the return to the seat, okay?
(In the production of bubble blowing liquid material selection, I a lot of children in the life of the things that can be accessed. Through the operation to obtain the relevant scientific knowledge experience, is that these things can make bubble blowing liquid. At the same time penetrate the operation routine, help to cultivate children's good operating habits.) 2. Young children experiment.
(In the process of making, the children choose the materials for making according to their own needs, and through their own experiments, they learned how to make bubble blowing liquid.) 3. Teacher: Let's see which children have already made it?
(1) What materials did you use to make the bubble blowing liquid? How did you do it?
(2) Who are the children who used XX to make it like him? Who used a different material than him and succeeded? What did they use?
(3) Is there anyone who didn't succeed? Then let's help him! We will look at the bubble blowing liquid with the children to find out why it doesn't work and come up with a solution.
Teachers ask the unsuccessful children to bring up the bubble blowing liquid to observe, and ask other successful children to make the reason. What did you use to make it?
Teacher: How do you make it successfully?
Teacher: Well, you can try again later! Who else didn't make it? Let's take a look at his bubble blower! What did you use to make it?
Teacher: Who's going to help him figure it out?
Teacher: Then you try again! Who else didn't make it! What material did you use to make it ...? Let me try to blow, okay? (The teacher blew bubbles in the process of trying to blow.) Teacher: What's going on here?
Teacher: How should I blow it?
Teacher: OK, try again the way they taught you!
Teachers: Well, try it again the way they taught you.
(2) Try to blow bubbles with different tubes and find out the problem.
1. teacher: this time we blow bubbles with three tubes on the table to try to blow bubbles. Guess the three tubes will blow the same bubbles? (Ask the children to guess) Teacher: Well, then try it! Just blowing bubbles liquid did not make successful children think about what they are, quickly the time to come back to try to blow, okay?
2. Children try to blow.
Teacher: Why does the thick tube blow the biggest bubbles? Why do the two thin tubes blow different bubbles?
(3) Try to add sugar or vinegar to the bubble blowing solution and find out the problem.
1. Teacher: This time, you have to add one thing to the bubble blowing liquid, and try to blow it to see what changes?
2. Teacher shows the sugar and white vinegar which are often seen in life.
Teacher: You add one of them to the bubble solution and see what happens. Remember, you can't add vinegar if you add sugar; you can't add sugar if you add vinegar!
3. children experiment 4. teacher: you all tried?
(1) Who put what in? (Sugar) What did you find?
(2) Who put vinegar? What did you find out?
3. End:
Arousing children's interest in exploring again.
1. Teacher: After blowing bubbles for so many times, what shapes are the bubbles blown out? Generally bubbles are round, but the bubbles in Beekman's world blow different shapes of bubbles, let's take a look!
2. Children watch Beekman's World. (Contents: Bubbles blow different shapes of bubbles, square and arch.) 3. Teacher: Bubbles can also be blown square and arched. Is it fun to blow bubbles? But what happens when bubbles are blown out? There is a little brother, he has a good way not to let the bubble burst, let's take a look! （Let's see it again! (Watch the video) (Content: Little brother wears a woolen glove to play with the bubbles blown out, neither breaks nor shoots.) 4. Teacher: I'll try it too! (Teacher throws a bubble with her sweater-clad arm.) Why does the bubble not break and dance? Please go back and try, and then tell us!
(Through the means of computerized education, to stimulate the children's interest in new. Usually, bubbles are round, but sometimes they are not always round. Under certain conditions, bubbles can be blown into other shapes.)