Classes begin at 8:15 a.m. and the day finishes at 3:15 p.m. Be on time, homework done. Attendance matters, studies and common sense show that students who have good attendance, tend to perform better academically all the way through college. Talk to your child about the importance of attending and being on time at school. For more information, please click on CPS Attendance Guide for Families. For the Spanish version, please click here.