How do "good"college teacherspresent information?

According to Meiland, a good college teacher presents information in the following way.
They present some information, in the sense of "what is currently believed." In fact, a large part college work consists of discussing and examining the basis of current beliefs. However, the author says that a certain important distinction is the distinction between a descriptive statement and a normative statement. He says that a good teacher should present statements that are partly descriptive and partly normative. I agree with his opinion, because we should have a curiosity and try to think deeply by myself, and I think that these activities would develop our potential.