So Children's Home and Aid is bringing people together in an attempt to prevent it.
On Tuesday, the organization held a conference to explore alternatives to keep preschoolers from getting kicked out of the classroom.
More than 100 government officials and teachers worked together to find ways to improve children's success.
They examined issues such as mental health and behavioral challenges.
Staff members hope to implement ideas from Tuesday's work session in order to keep children from losing out on the benefit of early education.
"Three years old and four years old is way too young to be starting your educational career already been kicked out of a preschool program. One of the things we would certainly like to focus on is reducing that for all children regardless of the color of their skin or regardless of the language they speak at home," noted Walter Gilliam, an associate professor of children's psychiatry at Yale University.
Professor Gilliam says the current rate for preschool expulsion is three and half times more than that of k through twevle children.
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