Hilary Dattilo, 30, was charged on Tuesday after she had engaged in a number of sexual encounters with the girl, according to police reports.
The trysts allegedly took place away from Hamilton High School between August 3 and December 8, last year.
Parents of students reportedly tipped off police about rumours involving the Ohio volleyball coach and the pupil.
HAMILTON HIGH SCHOOL
The female teachers who ROMPED with pupils

The School later confirmed Datillo had been placed on administrative leave after the educator handed herself in to police.
Datillo now faces charges of sexual battery and contributing to the delinquency of a minor.
She will appear in court on February 8.
Yesterday, Daily Star Online reported another 30-year-old teacher was arrested following allegations she had sex with a student.
FACEBOOK/ VALERIA ASHLEY COSTADONI
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Florida educator Valeria Ashley Costadoni was apprehended on Monday after a 17-year-old boy told cops he was in a “consensual” relationship with her.
The Miami Arts Charter School teacher was charged with lewd and lascivious battery on a child under 16.
Officers said the English teacher started the alleged relationship with the pupil when he was 15 years old.