Lindsey Trimble was arrested Thursday, the same day a district employee expressed concerns Trimble may have had an inappropriate relationship with a student.
Police say the student was 17 at the time and a junior at the school when he had sexual contact with the teacher off campus. Investigators say the crimes occurred between March and July of this year.
Trimble also coached the boy's tennis team during her two year employment at Clovis East.
Late Tuesday, Trimble hired Jeff Hammerschmidt to defend her against charges that include sex with a minor.
Action News tried to reach Trimble at her Auberry home. No one answered the door.
Investigators initially contacted the teacher at her house, then brought her to police headquarters. After an interview, she was arrested.
Officers believe there is only one victim. Trimble is scheduled to make her first court appearance on December 20th.