Ayesha! First of all congratulations for the new job! My mother was also a teacher. 🙂
I don't have amswers to all of your questions but I will like to give Mujhay point of view on the the first question!
Q- who is an effective teacher?
Answer- I am doctor by profession but still I consider myself a student so I think that effective teacher is who which have ability to develop relationships with their students. Students can share anything with the teacher whether it's related to studies or any thing!
I will ask my mother the other two questions, and will update you soon!