Activity objectives:
1, get a preliminary understanding of the structure and function of the ear.
2. Know how to distinguish noise and protect your ears.
Activity preparation: courseware: the role of ears
Activity flow:
First, introduce and show courseware to guide children to understand the structure of ears.
Second, expand
1. Discuss the function of ears in groups.
2. Protect your ears and use ear hygiene methods.
(1) Protect your hearing, and try to go to noisy places as little as possible.
(2) Use headphones, Mp3, etc. , and choose good quality.
(3) Don't listen too loudly, as long as you can hear clearly, and don't exceed one hour every day.
(4) If you find that you have to turn up the volume recently to hear clearly and watch TV, you should stop using headphones and go to the otology clinic immediately.
(5) Stay away from noise: The limit that human hearing can bear is 90 decibels. If it exceeds this limit, it is considered as noise.
(6) The hearing damage caused by noise is gradual, ranging from occasional tinnitus to frequent tinnitus, causing hearing weakness, ear fatigue and even deafness.
So don't be in a noisy environment often, and pay attention to relieving ear pressure.
(7) Use drugs carefully:
Some anti-infective drugs, such as streptomycin, gentamicin and kanamycin, can damage people's inner ear and cochlea and cause deafness.
Therefore, before taking medicine, you should read the drug instructions carefully or ask a doctor to strictly control the indications.
(8) be careful to dig your ears:
Digging the ear is easy to damage the skin of the external auditory canal and bring bacteria into the ear canal. Improper exertion will also cause injury and infection of the external auditory canal, leading to inflammation and ulceration of the external auditory canal, and even affecting mouth opening and eating. If the ear is itchy and uncomfortable, you can gently rub it on the outside of the ear with your hand or gently wipe it with a cotton swab.
(9) Adjust diet:
Eating more foods rich in zinc, iron and calcium is helpful to dilate capillaries, improve blood supply to the inner ear and prevent hearing loss; Avoid eating high-salt, high-fat and low-fiber foods for a long time, and don't overeat.
Avoid contact with water:
Don't let water into your ears when swimming or bathing. If you accidentally flow in, you can control the water sideways or gently dry it with a dry cotton swab. People who like swimming had better wear earplugs.
Remember that March 3rd every year is National Ear Love Day.
Third, end the search for beautiful sounds and harsh noises around.
Teaching reflection:
The event ended successfully! Before the activity, I created a relaxed and free atmosphere for my children to exercise and improve easily in the relaxed and free atmosphere. In the process of activities, children's initiative can answer the teacher's questions in complete language and actively communicate with their peers.