Cindy Clifton, a former teacher at Crestview Middle School in Covington, Tenn., pleaded guilty to a range of criminal charges Thursday after investigators accused her of performing sex acts on 10 students in the classroom and at her home, WMC-TV reports.

According to the station, the investigation identified 11 victims in total -- seven of whom Clifton was accused of having sex with. The other charges involved Clifton giving alcohol to four other students. The students ranged in age from 14 to 17 years old.

WMC-TV reports Clifton will serve an 11-year sentence: three years in prison and eight years on probation.

Earlier this month, Kathryn Camille Murray, a 29-year-old former teacher from Houston, Texas, faced additional charges accusing her of having sex with a 15-year-old student in her classroom on more than one occasion.

KHOU-TV reports Murray was initially charged with having sex with the student in his home while his parents were away. Murray now faces two more counts of sexual abuse of a child and one count of improper relations with a student.

And in Forth Worth, Rachelle Heenan, a married 34-year-old mother of two and teacher at Boswell High School was accused of having sex with a student in hotel rooms multiple times.

According to CBS Dallas-Fort Worth, authorities were tipped off after rumors began to circulate amongst students at the school.