Twenty-six-year-old Courtney Ruth Martin of Aynor was arrested earlier this week and has been placed on administrative leave while the case is investigated.
Martin is charged with contributing to the delinquency of a minor. It was not clear if she has a lawyer.
Conway Police Lt. Selena Small said an investigation determined that Martin was involved in inappropriate behavior with a student between August 2012 and Oct 29 of this year.
Martin is an English teacher and was placed on leave Oct. 29.
She is also accused of sending improper photos to the student.
The student told police he was involved in a relationship with the teacher.