A teacher (also known as an educator) is a person who imparts skills and knowledge to other people, usually in predefined skills or fields, and is also responsible for providing education. Schools were common workplaces for teachers. Teachers in an university are also known as professors.
Teachers serving in the Lyran Starfleet often were members of the Educational Debtor Service Program; however, in the Lyran Star Empire, both civilian and military teachers at primary and high school levels only needed to earn a bachelor's degree to be authorized to practice. Also, a planet-wide teacher strike on Peladine paralyzed the planet's educational system. (Star Trek: The Stoneship Files: "Educational Armageddon")