A trial has begun for a former Saskatchewan teacher accused of having a sexual relationship with one of her students.

Erin Osmond, 29, faces two counts of sexual exploitation involving a student she taught at Watrous High School.

The charges stem from alleged incidents that happened between February and April 2013.

During the first day of the trial Monday, the court was shown an RCMP interview with the alleged victim that included graphic descriptions of multiple sex encounters.

The Crown said it plans to call three witnesses, including the alleged victim, during the trial at Court of Queen's Bench in Saskatoon.