A former Jacksonville high school teacher has been sentenced to 18 months in prison after pleading guilty to one count of unlawful sex with a minor, News4Jax learned Wednesday.

JACKSONVILLE, Fla. – An ex-First Coast High School teacher Christine Dennard was back in court Wednesday for a hearing on a motion to increase bond filed by the prosecution. Dennard, 32, is accused of having a sexual relationship with a former student of the school. She also appeared in court Monday, where her attorney entered a not-gulty plea on five counts of unlawful sexual activity with a minor. Dennard posted $1,500 bond on the first five charges, and $150,000 on an additional charge alleged by a second person. According to Duval County Public Schools, Dennard resigned her teaching job the day she was arrested.