How do you write You are a great teacher in french?

There are a few ways to say "You are a great teacher" in French, depending on the formality and the specific meaning you want to convey:

Formal:

* Vous êtes un excellent professeur. (This is the most direct and formal translation.)

* Vous êtes un très bon professeur. (This is slightly less formal but still polite.)

* Votre enseignement est excellent. (This focuses on the quality of their teaching.)

Informal:

* Tu es un super prof! (This is very casual and friendly.)

* Tu es un bon prof! (This is more casual but still polite.)

* T'es un bon prof! (This is very informal and likely used among friends.)

More specific compliments:

* Vous avez une manière d'enseigner très claire et efficace. (You have a very clear and effective way of teaching.)

* J'apprécie beaucoup votre passion pour l'enseignement. (I really appreciate your passion for teaching.)

* Vous savez vraiment motiver vos élèves. (You really know how to motivate your students.)

Remember to choose the appropriate level of formality based on your relationship with the teacher.