2. Have a preliminary understanding of the relationship between breathing and physical health, and be curious about the changes of physical phenomena.
Activity preparation: a small piece of paper, a mannequin, a big record sheet, etc.
Activity process: First, the role of breathing-people can not do without breathing.
1, games: note movement (explaining rules, children's perception)
Question: What happened to the note? Why do notes move?
2. What does it feel like if people don't breathe? (Number of teachers and time, children's live experience)
Question: How do you feel when you hold your breath?
3, summary: people can not do without breathing, breathing helps us maintain life.
Second, the process of breathing-the lungs are human respiratory organs.
1, how do people breathe? (Show the mannequin and learn about the lungs)
2. Find the position of the lung in your body, and the balloon experiment senses the changes of the lung when breathing.
3. Summary: It turns out that people rely on the lungs and many other organs to work together to help us breathe.
Third, the change of breathing-people breathe differently in different States.
1. Show the record sheet and recall your feelings after running.
2. The children self-test the number of quiet breaths in one minute and complete the record.
Question: What do you find from the table?
3. Children imitate, debate and listen to other different breathing sounds to reproduce the breathing experience in life.