Christina Butler, 33, a ninth-grade teacher at Middleton High School, was arrested after she admitted having a sexual relationship with her 16-year-old student.
Tuesday night officers were conducting surveillance at a local apartment complex when they saw a group of teenagers driving erratically in a Jeep Grand Cherokee belong to Butter on 24th Street.
The 16-year-old driver, who did not have a license, told police that his friend Butler let him use the vehicle. Another boy told an officer that the driver was involved in a relationship with the teacher.
Butler was called to the scene and questioned by officers who said she eventually admitted having sex with the student, whom she taught in one of her classes.
Charged with lewd or lascivious battery, Butler is now out of jail after posting $7,500 bail.