1, take "safety first, prevention first" as the guiding principle, and create a safe, civilized and healthy educational environment.
2. By teaching students to enhance safety awareness and master some simple safety common sense, they can cope with emergencies in daily life and learn to protect themselves.
3, let students start from the usual dribs and drabs, develop good eating habits, hygiene habits, etc. , will prevent the occurrence of various common infectious diseases.
Second, the teaching content:
1, ensuring food safety and preventing food poisoning and lead poisoning.
2, rational drug use, away from bad habits.
Third, the teaching process:
Introduction: The students have learned a lot of health knowledge. Today, teachers and students study food hygiene together.
(1) Teaching food hygiene.
1, students perform short pieces (music)
Did they give a wonderful performance just now? Think about it, why did that classmate have a stomachache just now?
Take out the plastic bear and demonstrate what overeating means. If the gastrointestinal burden is too large, it is easy to cause indigestion.
2. Explain the importance of "three meals a day"
Let the students speak freely.
Step 3 Ask and answer questions
Time is tight in the morning. Can we skip breakfast?
4. summary.
Only by developing good hygiene habits can we have a healthy body.
(two) to ensure food safety, put an end to lead poisoning.
How to prevent lead poisoning?
Prevention of lead poisoning should start with diet and living habits.
First of all, printed materials such as newspapers should not be used as food packaging in the diet. When food is packed in food bags, direct contact with food, especially acidic food, should be avoided. Wash vegetables and fruits before eating, and peel them as much as possible to prevent pesticide residues of lead.
In terms of living, try not to use lead-containing paint to decorate the walls, floors and furniture at home, otherwise once the paint crumbs peel off, the lead in the paint will easily cause lead pollution in the living room. Try to use lead-free cosmetics, hair dyes, etc.
In addition, don't walk near roads with many cars, because automobile exhaust and soil around roads contain a lot of lead.
Diet should contain enough high-quality protein, such as eggs, lean meat, poultry, fish and shrimp, soybeans, bean products, etc., accounting for more than 1/2. Foods rich in vitamins, especially vitamin C, should be selected in dietary distribution. Appropriate vitamin C supplementation can not only make up for the consumption of vitamin C by lead, but also slow down the symptoms of lead poisoning. Vitamin C can also combine with lead in the intestine to form lead ascorbate with low solubility, which reduces the absorption of lead. At the same time, vitamin C also directly or indirectly participates in the detoxification process and promotes the discharge of lead.
Eat some lead-free food properly. Many natural foods have certain functions of preventing and expelling lead. Protein contained in milk can combine with lead to form insoluble matter, and calcium contained in milk can prevent the absorption of lead. Tannic acid in tea can form a soluble complex with lead, which is excreted with urine. Iodine and alginic acid in kelp can promote the discharge of lead. Sulfide in garlic and onion can dissolve the toxic effect of lead. Seabuckthorn and kiwifruit are rich in vitamin C, which can prevent the absorption of lead and reduce lead toxicity. Food contains some inorganic anions or acid radicals, such as iodine ions, phosphate ions and molybdate ions. , can combine with lead to promote its excretion from the stool.