Niedzwiecki, 34, of Kaysville, pleaded not guilty to eight counts of first-degree forcible sodomy and one count of first-degree felony attempted rape, and two counts of second-degree forcible sexual abuse in June. His trial is set to run Feb. 4 through 7.
A 17-year-old girl reported that Niedzwiecki had begun a relationship with her when she was 15, at the end of her ninth-grade-year.
He had been a basketball coach and taught at Jefferson Academy in Kaysville, where the girl attended school and played on the basketball team.
At the time of his arrest, Niedzwiecki was teaching at Quest Academy and was an adjunct professor of anthropology at Weber State University. He is no longer teaching at either school.