A Tennessee high school teacher who’d been awarded “teacher of the month” has been charged with statutory rape after allegedly having sex with one of her students.

Casey McGrath, a 28-year-old geometry teacher at Chattanooga Central High School, was suspended without pay in March after a months-long investigation into alleged “inappropriate physical contact with a student” WTVC reported.

She was indicted on Aug. 14 and charged with “unlawfully and knowingly engag[ing] in sexual penetration with a person of at least 13 years of age, but less than 18,” according to court documents obtained by Fox News.