Celina Isd Calendar - August 7 teachers return to school. Web celina isd student handbook page 7 of 98 preface parents and students: Welcome to the new school year! July 4 4th of july holiday. August 21 first day of school. Oct 21, 2021 updated oct 21, 2021.
Web celina isd student handbook page 7 of 98 preface parents and students: July 4 4th of july holiday. Welcome to the new school year! August 7 teachers return to school. Oct 21, 2021 updated oct 21, 2021. August 21 first day of school.