A former Duncanville High School teacher is in jail for an alleged improper relationship with a student.
In a police affidavit, a student claims when he was 15 years old he and Elizabeth Ramsey had sex multiple times.
The school district says Ramsey taught at the school from 2009 to this past year, before leaving for another job.
Duncanville ISD says it did not know about the allegations while she was a teacher.
Ramsey's been charged for improper relationship and the sexual assault of a child.