What is the earliest age a child can be out of sound supervision for short periods of time according to NAEYC?

preschool and kindergarten age children

Step-by-step explanation:

Preschool and kindergarten children must be supervised by teachers with the naked eye. However, given the age and autonomy of these children at this age, they can be supervised for short intervals of time through sound supervision, provided that the staff is properly trained in this regard.