What is the typical role of a teacher; to impart education, provide training, or to prepare to take the examination?

I believe that a role of a teacher should always remain to 'Teach', a teaching which should have 100 answers for a single question following simpler way without any irritation. Else than that are secondary. For example if a student is not interested in studies how we'll gonna impart, educate or provide training. The answer is to firstly develop the students interest into studies. The student should stick to the class, that impact should be created. Sir there are many students in the world who sits in a majority in the same class but every individual has its own way of thinking, imagining, processing & exploring things. In others words some do have brains working on a speed like a I 7 processor but some do have like a Celeron.  So in my opinion the name of the subject Maths should be changed into Mind Games. where it will be very easy to impart & providing education along with examination in a interesting way.

To impart, education, providing training.