Arlington ISD Community-Based Pre-K 3 is a half-day pre-K program for three-year-olds located in child care centers with a full day of child care. By enrolling in pre-K at the child care center, students receive seamless, convenient daycare both before and after the pre-K school day without ever having to leave and go to another care location. Plus, the pre-K program is taught by an Arlington ISD teacher with the same outstanding play-based curriculum, materials and technology used at Arlington ISD campuses.