Activity objectives:
1, a preliminary understanding that proper sun exposure is good for human health.
Learn to protect yourself from ultraviolet rays in direct sunlight.
3. Stimulate children's interest in boldly expressing and communicating in front of the group.
4. Cultivate children's optimistic and cheerful personality.
Activity preparation:
1, photo of skin damaged by sunlight.
2, hats, sunscreen, sunglasses, umbrellas, etc.
Activity flow:
1, take the children to bask in the sun and talk about the feeling of sunbathing on the body.
2. Go back to the room and discuss: "What are the benefits of sunbathing? Who have you seen basking in the sun? "
Guide children to remember that the elderly, children and patients all need sunbathing, and some people will sunbathe on the beach (sunbathing can make people energetic, reduce the occurrence of depression and osteoporosis, help the body synthesize vitamin D, and sunbathing regularly can prevent calcium deficiency and enhance the function of the immune system. )
3. Show photos of skin damaged by the sun: "What's wrong with such people's skin?" Guide children to guess why this happens.
4. Explain to children that they should pay attention to protection in strong sunlight, because ultraviolet rays in sunlight are harmful to human body (ultraviolet rays will dilate blood vessels and cause erythema, excessive irradiation will cause diffuse erythema, forming blisters and edema, and long-term irradiation will make the skin dry, lose elasticity and age. Ultraviolet radiation can cause keratitis.
5. Let the children find out the effective items that can shade the sun: hats, sunscreen, sunglasses, umbrellas, etc. , and talk about their respective uses.
Activity expansion:
In daily life, let children help teachers and mothers dry clothes and quilts, and feel that the sun has a bactericidal effect.
Teaching reflection:
In this activity, I used courseware and videos. Stimulate children's interest, children have strong interest, can actively answer teachers' questions, and can discuss the sun with teachers. Children can talk about their feelings about the sun.