A former Tunnel Hill teacher must serve at least 90 days in jail, then be on probation for 10 years in connection with sex with an underage student.
Raquel Eleana Spencer must also pay a $1,000 fine and perform 300 hours of community service.
She pleaded guilty to sexual assault by a person with supervisory of disciplinary authority.
Authorities said the relationship lasted over a year.
Ms. Spencer, who was arrested last April, taught English at Northwest Whitfield High School in Tunnel Hill. She also was an assistant cheerleading and girl's track and field coach.