Activity objectives:
1, educate children to understand the importance of breathing to people, and know the main organs related to human breathing and their names. 2. Let children know how to protect human respiratory organs through activities.
3. Cultivate children's ability to protect themselves.
Activity preparation:
1, The Human Breath (1), (2), (3), (4) and (5).
2, a number of plastic bags.
Activity flow:
1, inspire children to do experiments with plastic bags.
(1) Children blow into plastic bags with their mouths.
"Who knows why plastic bags swell? (There is air in the bag)
(2) Where does the gas in the plastic bag come from? Why is there gas in the body?
The teacher instructs the child to breathe in and out, let the child talk about his feelings, let the child close his mouth, take a deep breath through his nose, then breathe out his feelings and talk about them.
2. Enlighten children to talk about the impact of breathing on people.
(1) Ask the children to take out their books and turn to the diagram 1 to guide the children to observe the respiratory organ diagram. The teacher will introduce the diagram to the children.
The human body needs oxygen. By inhalation, air passes through the nose, throat, trachea and bronchus to reach the lungs, where it is absorbed. The waste gas in the body is also replaced here and discharged from the body through the respiratory organs. Exhaled gas is the waste gas in the human body.
(2) Let the child hold his nose and close his mouth, and feel uncomfortable when he can't breathe, and then talk about his feelings.
(3) Inspire children to discuss how people feel and what is uncomfortable when the respiratory organs are sick. Guide the child to say: when you have a cold, you will have a stuffy nose, cough and sore throat. When you get pneumonia, you will have a fever, shortness of breath, wheezing, and it is very uncomfortable.
3. How to protect our respiratory organs?
Respiratory organ is an important organ of human body, so we should take good care of it. Guide children to observe and discuss the contents of books (2), (3), (4) and (5), and let children know how to protect respiratory organs.
Activity expansion:
1, while leading children to participate in sports activities, let children feel that people will be short of breath because of increased exercise, and people need more oxygen when exercising.
2. Teach children to take a deep breath outdoors and experience the process of exhaling and inhaling.