In the fast changing world,public teaching is also changing.As part of the changes the teachers role and authority in the classroom .
In the past teachers used to be the major source of knowledge ,the leader and educator of their students ,they used to be the authority in the class, but nowadays teachers need to teach their learners how to gain the information and how to select and use them,but the main problem is that the role of the teacher is changing day by day ,and teachers face many proble