A teacher at a private Christian school has been arrested and charged with sexually assaulting a 14-year-old student a number of times since she was 11, police said today.

Steven Fulton, 26, was arrested Tuesday after the victim confided to an another adult at the Timothy Academy and police were notified, officials said.

Capt. John Darby of the Special Victim's Unit said Fulton was a teacher at the Christian school on the 300 block of West Lehigh Avenue in the Fairhill section.

He said the assaults took place at the school and in Fulton's car.

"They activity escalated over a period of time," Darby said.

Fulton, of the 5000 Block of Osage Avenue, West Philadelphia, has been charged with 11 offenses, including rape, sexual assault and indecent assault of a child younger than 13.

Court records indicate he was released today after posting 10 percent of $25,000 bail.

A preliminary hearing is set for April 12.