Formal:
* "Salve, magister/magistra!" - This is the most direct translation, meaning "Greetings, teacher!" It is a very formal and respectful way to address a teacher.
* "Bonum mane, magister/magistra!" - This translates to "Good morning, teacher!" and is a bit more casual than "Salve."
Informal:
* "Mane bonus, magister/magistra!" - This is a more informal way to say "Good morning, teacher!"
Tips:
* "Magister" is used for a male teacher and "magistra" is used for a female teacher.
* You can add a name after "magister/magistra" for a more personal greeting, like "Salve, magister Marcus!"
Ultimately, the best way to greet your teacher in Latin depends on your relationship with them and the situation.