A female teacher at a Maryland high school was charged Tuesday with exchanging sexually explicit photos with a student, authorities said.

Erin Thorne, 28, was charged with one count of displaying obscene matter to a minor and one count of solicitation of child pornography. She turned herself into police Tuesday afternoon, according to the Anne Arundel County Police Department.

Thorne was an English teacher, girls' basketball coach and student government association adviser at Broadneck High School in Annapolis, said Anne Arundel County Public Schools spokesman Bob Mosier. She has not been at Broadneck since November, when the school system was first notified of a possible inappropriate relationship and placed Thorne on paid administrative leave.

According to a charging document, a student who had graduated from Broadneck in 2011 said Thorne began pursuing an inappropriate relationship with him during the fall of his senior year.

Thorne asked the victim to send her naked pictures of himself, and he did so. In return, Thorne sent him sexually provocative, naked photos of herself. The photos were exchanged through text messages, the court document stated.

Additionally, the student told authorities that he and Thorne also had engaged in sexual activity, but that it began after he turned 18, according to the document.

Anne Arundel Superintendent Kevin Maxwell said Tuesday he will recommend to the Board of Education that Thorne be suspended pending termination.

"The kind of behavior that Erin Thorne is charged with engaging in cannot be tolerated at any school in our county, or in our nation for that matter," Maxwell said in a statement. "Preying on children in any way should not be excused for a single moment."

Last week, a science teacher at McKinley Technology High School in Northeast D.C. was arrested on a child pornography charge after he allegedly convinced a male student to take sexually explicit photos of himself. According to court documents filed this week, the teacher, John Solano, admitted to engaging in sexually explicit conversations with as many as 10 students during his teaching career.