The main role played by the teacher or the instructor while imparting knowledge to a group of students is firstly, to create a safe learning environment for the students to learn and interact openly (Langford et al, 2015). The main role played by the teacher or the instructor while imparting knowledge to a group of students is firstly, to create a safe learning environment for the students to learn and interact openly (Langford et al, 2015). The paper below discusses and analyzes the principles with respect to the valid,