GERING, Neb. (AP) — Sentencing has been scheduled April 23 for a 16-year-old student who attempted to sexually assault a teacher at a western Nebraska high school.

The boy admitted to a charge of attempted sexual assault after prosecutors dropped two related charges.

The boy was arrested the morning of Nov. 20, a few blocks from Gering High School in Gering. Court records say the boy used a pocket knife to menace the teacher before her class began, telling her to take off her clothes. She shoved him and ran to another classroom. The boy chased her and groped her and then ran from the school. The teacher was not injured.

The Associated Press generally doesn’t name juveniles accused of crimes.