ORLANDO, Fla. -- A high school chemistry teacher was arrested after students claimed he taught his class how to make a bomb, the sheriff's office said.

David Pieski, 42, used an overhead projector in class to give instructions in making explosives to students at Freedom High School, including advising them to use an electric detonator to stay clear from the blast, an Orange County sheriff's arrest report said.

In Pieski's classroom, authorities said they found the chemical breakdown for an explosive used by Middle East suicide bombers. It was not clear if the information found in a book labeled "Demo" was shared with students, the arrest report said.

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Police: Teacher Instructed Students On Bomb-Making

One student said he set off an explosive device at a golf course on Jan. 6 and videotaped it, an arrest warrant showed. The videotape shows an explosion, and the voice of a young man can be heard shouting.

Local 6 News aired the videotape Wednesday.

"You can see by the nature of the explosion the significant boom with a significant fire ball," Orange County Sheriff's Office spokesman Jim Solomons said. "So, had someone been in close proximity to that device and it exploded prematurely, they could have been seriously hurt."

Pieski was charged with possessing or discharging a destructive device and culpable negligence. Pieski, who was booked into the Orange County Jail on Monday, declined comment. He was later released on $1,000 bail.

School district area Superintendent Judy Cunningham said Pieski was reassigned to a desk job in her office after he was interviewed by authorities. He is still earning his salary.

Pieski told investigators he detonated chemicals in a coffee can by a ball field four times for his students, the sheriff's office said. He said he did this as a chemistry project to show a reaction rate, the arrest report said.

"Pieski admitted to me that he observed (the student's) video and approved of his successful results," the arrest warrant said. "Pieski disagreed with the project being an explosion."

Pieski guided investigators to an unlocked metal cabinet in the back of a classroom, where there was "a can of black powder stored next to other chemicals," the sheriff's office said.

School officials told investigators that Pieski previously had been told he was not allowed to have any form of explosive on campus.