1, guide children to understand the reason why the windmill rotates, understand the reason why the airflow produces wind and then drives the windmill to rotate, and describe the principle of windmill rotation in complete and coherent language.
2. Learn simple ways to explore things, improve hands-on ability and brain ability, develop observation and thinking ability, and cultivate interest in scientific activities.
3. Experience the fun of being a windmill and cultivate children's running ability.
Activity preparation:
1, knowledge and experience preparation:
The children are playing with windmills.
② Learn how to fold diagonally in origami.
③ Have a certain understanding of "air".
2. Material preparation:
① All kinds of finished windmills.
② Disposable wooden chopsticks.
③ Some colored nails and crayons.
④ Waste of calendar paper.
Activity flow:
1. Show windmills and stimulate children's interest in playing windmills.
Children can play with windmills freely and try to make them turn in various ways.
3, life interaction, talk about feelings, play:
How do you make the windmill turn?
② How does the windmill turn fast?
③ Why does the windmill turn?
4. Do a small experiment to observe the formation of wind and the process of windmill rotation:
① Experiment 1: The windmill rotates:
The teacher lit the candle, and the children put the windmill on the candle, observed the phenomenon that the hot air rose to drive the windmill to rotate, and discussed it.
② Experiment 2: Air flow
Teachers light cigarettes, children put a proper amount of cigarettes in the glass cover, and then light candles, so that children can intuitively perceive the flow of air.
5. Children make windmills.
The teacher inspired the children to design, make boldly and make beautiful windmills. At the same time, give necessary help to children.
6. Children play with their own paper windmills to further feel the air flow.
End of activity:
Experience the joy of success.