The continual testing and quarantining of healthy students and staff is what keeps schools from being able to reliably stay open.

Rapid test will test negative when someone is already contagious.

It won’t be an effective means of stopping spread. Instead give out surgical masks or n95 to all kids. Cloth masks allow 90%+ of the virus to enter/leave. Add hepa filters. Add space heaters and leave the windows open. Maybe teach outside in parklet if possible.

That’ll be more effective at preventing spread.