An argument between the pair happened when the suspect discovered his pencil box was missing from his desk. The item was found in the victim's possession.
Detectives have charged the suspect with assault with a deadly weapon inflicting serious injury. He is in the custody of his parents at this time. School officials will handle disciplinary action against him. Juvenile Detectives are continuing the investigation and charges are pending at this time.
Meanwhile, the victim did not require emergency medial assistance for her wound. She returned to school Thursday.