As reported in “Suspending Preschoolers Doesn’t Work: How Adults Can Intervene“:
[E]xperts and advocates now argue that suspending a 3- or 4-year-old, no matter how bad the behavior, is a bad idea.
“Expelling preschoolers is not an intervention,” according to a policy statement issued earlier this year by the National Association for the Education of Young Children and endorsed by the American Academy of Pediatrics. “Rather, it disrupts the learning process, pushing a child out the door of one early care and education program, only for him or her to be enrolled somewhere else, continuing a negative cycle of revolving doors that increases inequality and hides the child and family from access to meaningful supports.”
Instead, use gentle redirection and teach them techniques for managing big feelings.
And, help the teachers and caregivers empathize with the children.