Maybe Atlanta is not part of the Fulton County School system. Have no idea since Atlanta is in Fulton County.
My kids are off as are all Fulton County schools. I will link to the Fulton County School calendar showing March 11 as a Teacher Work Day.
http://www.fultonschools.org/addapage.asp?page=media-bin/html/2004-2005Calendars.asp
Separate school districts. Atlanta is a typical urban district. Fulton has some decent schools.
Add to my previous response to you about Atlanta. Atlanta also extends into part of DeKalb county.