Jonathan Eluterio Martinez Garcia, 16, was taken into custody Friday and hit with a slew of charges, including attempted murder, over the alleged attack, the Las Vegas Review-Journal reported.
Police said the teen had gone to the teacher’s classroom at Eldorado High School on Thursday and became violent.
“[He] began punching the victim and strangled her until she lost consciousness,” police said in a statement.
Garcia then fled, according to cops.
The injured teacher was discovered inside the classroom by a janitor and was rushed to a nearby hospital for treatment.
Garcia was arrested about a mile from the school and booked into the Clark County Detention Center for attempted murder, sexual assault, battery with intent to commit sexual assault, first-degree kidnapping and robbery.
He is being held on a $500,000 bail ahead of a scheduled court appearance on Tuesday.
The teen was ordered to have no contact with his teacher.