STATEN ISLAND — The mother of a high school student pleaded not guilty to charges that she threatened to blow up her daughter's school over a failed exam, according to the Staten Island Advance.

The newspaper reports that Karen Shearon, 48, of New Sprinville, denied making the call at a court appearance Friday.

"If I was so dangerous and I said such a threat like that, wouldn't you evacuate the school?" Shearon is quoted as saying.

She was freed on $1,000 bail on the charge of second-degree misdemeanor aggravated harassment.

According to the Staten Island Advance, Shearon threatened a guidance counselor at Susan Wagner High School on Tuesday after she received a call that her daughter failed a Regents exam. Students in New York state have to pass the Regents exam to graduate from high school.

Brian Amaral may be reached at bamaral@njadvancemedia.com. Follow him on Twitter @bamaral44. Find NJ.com on Facebook.