Activity objectives:
1. Make your own windmill, feel the change of the wind, and like to explore the secrets of the wind.
2. Simply understand the relationship between wind and people's life.
3, through practical operation, cultivate children's hands-on operation ability.
4. Willing to explore, communicate and share.
Activity preparation:
1, kites, plastic bags, materials for children to make their own windmills (colored paper, thumbtacks, sorghum stalks, small scissors).
2. Pictures about the wind (the function and harm of the wind).
3. Large class children's book 2, page 10.
Activity flow:
1, let's see:
Dialogue: Today, the teacher brought a present to the children. Take a look. Do you know that?/You know what? (Show the children kites and encourage them to speak enthusiastically) The teacher brought this gift, but also brought a question: How to make it fly into the sky?
2. Think about it and have a look:
(1) What's the difference between the winds in four seasons? The wind is soft and warm in spring, hot in summer, cool in autumn and cold in winter.
(2) Do you know what people do with the wind? Encourage children to think boldly and speak boldly, and the teacher can hint appropriately. )
Show the children pictures. Teacher's summary: People use wind to generate electricity. Wind can dry our wet clothes, crops can spread pollen, children can fly kites and wind can blow wind chimes. ...
Teacher: The wind brings a lot of convenience to people's lives, but sometimes it also brings great harm.
(3) Look at the pictures to let the children know the dangers of typhoons and hurricanes: causing tsunamis, blowing down trees and houses, overturning, etc. This is a natural disaster, but human beings are confident that they can overcome it one day.
3. Give it a try and then do it:
Wind energy helps people do many things. The wind is around us. Do children want to play games with it?
Instruct children to make windmills with prepared materials (remind children to pay attention to safety when using scissors)
4. Play and find:
Let children play with windmills and feel the influence of wind speed and direction changes on windmills.
(1) Let the children stand in the same place, observe the windmill and talk about its speed.
(2) Let the children try to walk slowly and observe the changes of the windmill.
(3) Run and let the children observe the changes of the windmill again. When the child is running, remind the child to pay attention to safety and don't let the windmill point at the child.
The teacher concluded that the speed of windmill rotation is related to wind speed and direction. The greater the wind speed, the faster the windmill rotates and the faster it rotates against the wind.
5. Listening and learning:
Autumn wind rises, leaves fall slowly, and sometimes it flies around the yard. Who made it fly? (Wind) Let's observe, children. Apart from the leaves being blown up by the wind, what else will make the wind blow up? (plastic bags, paper)
If we let these rubbish disappear, the environment around us will become more beautiful! Cultivate children's good habit of not littering and picking up scraps of paper when they see them.
6. Classroom expansion:
Children make a wind chime, try it, and hang it in the room where it makes the loudest sound. Activity design captures children's curiosity and makes use of existing life experience to let children learn by constantly solving problems. The activity follows the educational concept of "play in school, play in middle school", so that children can learn knowledge in a relaxed and pleasant atmosphere. On the basis of knowing that kites need wind in the sky, we know that the wind helps people do many things well, and we also know the harm of too much wind, but then we remind children not to be afraid of the wind. The wind is still our friend. Guide children to do and play, and let them feel the "fun" of the wind. At the same time, let them explore the secrets of the wind in their attempts.
Activity reflection:
Lead children to explore in depth again, leaving room for children to explore and extend. The whole activity gives the children a relaxed atmosphere, and the teacher only acts as a supporter, encourager, collaborator and guide in the activity, listening attentively to the children's expressions and sorting out and summarizing them in time. Children will always be the main body, and new knowledge and experience will be sorted out through observation, hands-on and exploration, so that children can grow their talents in practice. Of course, in children's scientific activities, we should strengthen the cultivation of children's thinking ability, enhance children's independence and exploration, let children complete their learning tasks in a complete link, truly master scientific knowledge, enter science, and let the light of science illuminate their growth path.