Stephen Stahl is charged with corrupting a minor.
He is accused of having sex with a 16 year old Coughlin student in 2004.
The alleged victim, who is now 26 testified today that she and Stahl had a sexual relationship for more than a year.
She says it happened inside his classrooms at Coughlin High school, local hotels, and even at Stahl's home.
Stahl denies the allegations.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.