Some times the teachers may be required to refer some books also to answer the questions of the students. That is why a teacher should be always updating his/her knowledge from time to time. The level of the subject what they studied during their studies may be different from the present day's level.
Whether it is classroom teaching or online teaching, the role of the teacher is very important. The level of the teacher in his subject will be definitely high and an experienced teacher can manage wisely any type of situation without any problem. They might have seen very intelligent students and they might have managed. The question may appear difficult to the student or his parents but not to the teacher and he knows how he can make the student understand the subject.
The amusing part of this thread is the point about parents inducing their wards to ask tricky questions to the teacher. Now, would that be teaching the students a good lesson or do such parents require to be given some lessons? I don't want to go into the details but I think the title 'teach yourself before teaching others' suits more to such situations.
“The door to wisdom is knowing yourself." Anonymous
No life without Sun
I was giving tuitions since I was in class nine. One day one of the tuition students asked some practical question regarding electrical installations. That time my house was not electrified. So I could not answer to that specific question. I told him that and assured him to answer the next day. Then I approached a well wisher who was more knowledgeable and learned more from him on this matter. Next day I could clear the student's doubt.
Lead the leader
Keep your Face to the SunShine