The best way going forward is to use a system that helps the school to retain its formal structure, its branding, its employees and provide the same kind of education even when the students are not physically present in the school.
The most important contribution which every school can make is to let the students learn how to wash their hands properly.
The schools have to get proper guidance and knowledge from those who really know:
1. Schools, working together with local health departments, have an important role in slowing the spread of diseases and protecting vulnerable students and staff, to help ensure students have safe and healthy learning environments.
2. Guidance for childcare programs and schools is organized into three categories based on the level of community transmission: 1) when there is no community transmission (preparedness phase), 2) when there is minimal to moderate community transmission, and 3) when there is substantial community transmission.
3. Guidance is also provided for when a confirmed case has entered a school, regardless of the level of community transmission.
4. All decisions about implementing school-based strategies (e.g., dismissals, event cancellations, other social distancing measures) should be made locally, in collaboration with local health officials who can help determine the level of transmission in the community. Information about level of transmission is available in CDC’s framework for mitigation.
Here is the PDF version of the instructions issued by the Center of Disease Control in USA: