1. Wearing masks, not gathering and playing, and washing hands frequently can effectively prevent the epidemic. This is also the focus of primary school education.

2. Wearing a mask can prevent the COVID-19 epidemic caused by droplet infection. For primary school students, there is a certain limit to patience. We should guide them to wear masks.

3. Gathering and playing can easily lead to the spread of the virus. Pupils prefer to play in groups, so they should be told not to play together during the epidemic.

4. Pupils' health awareness is not as good as that of adults, so they should pay more attention to their health education and wash their hands frequently to prevent viral diseases from entering the mouth.