Pre-K/Kindergarten registration opens April 3. Signing Day is April 4. Arlington ISD Pre-K Full STEM ahead! Registration for the 2023-24 school year opens April 3, 2023 2022 - 2023 Pre-K Registration Enroll In Pre-K Full-day pre-K for 4-year olds Unique STEM learning opportunities Bilingual and special needs programs Click a button for more information My child will be 3 years old on or before September 1 My child will be 4 years old on or before September 1