[Alfonso]

But in the quote I selected from twalker there is nothing about new technologies. Only about teaching, teachers, students and important things for this last ones.

Twalker had already said that motivation is important for the student:

... for students, interesting and motivation are very important.

So, since I realised motivation is important for a student, I asked what's important for a teacher. I'm even copying the propositional regime from Twalker phrase (to be important for somebody).

Anyway, my doubt is why I failed in communication, as I cannot see any grammar mistake nor an ambiguous meaning.