Registration for Rockdale County Public Schools 2012-13 Kindergarten and Pre-Kindergarten classes is now underway for students who will turn 5 years old by Sept. 1. Visit www.rockdale.k12.ga.us for information and then visit Student Registration at 1143 West Avenue from 7:30 a.m. - 3:30 p.m. Monday - Friday to submit your application. The registration period is open until March 30.