"Han er skolens mest populære lærer."

Translation: He is the school's most popular teacher.

[stromswold]

Why is "teacher" in the indefinite rather than in the definite form, i.e., "Han er skolens mest populære læreren"

[fveldig]

It's indefinite in the English sentence as well.

[PietrowM]

So if there is indefinite form, why is there "populaære" instead of "populær"?

[Athalwulfaz]

English only inserts the definite article when the word order is reversed: "He is the school's best teacher" or "he is the best teacher of the school." Either way, the only true definite here is 'school'.

[anothernobody]

Is there any difference in the pronunciation of e and et when they end a word?

[m.g.doyle]

Why populære when the noun is indefinite?

[Regney]

He is the teacher.
He is the [most popular] teacher.

I hope that helps. :0)