1. Have a preliminary understanding of "three no foods" and expired foods, and understand the health hazards of these foods. The teacher introduced and guided the children to know what "three no foods" are. Children will feel uncomfortable after eating them and understand its meaning.

2, you can refer to the production date and safety signs to buy safe and healthy food. Learn how to buy food and know about expired food, and how to observe packaging.

3. Enhance the awareness of food safety in life and improve the potential of self-protection. Check the results of verification and selection with each other, and correct any errors in time.

4. Cultivate children's keen observation ability.

5. Explore and discover the diversity and characteristics in life.