I found this great article about staying safe in early childhood programs. These procedures and drills are a good way to let young children know how we can stay safe.
https://eclkc.ohs.acf.hhs.gov/sites/default/files/pdf/03202-stay-safe-procedures-eng.pdf
With the increase in school incidents, this article is a great read for school staff and parents to understand what needs to happen to keep the children and themselves safe.