I encourage students to ask questions and participate in class discussions. There is no such thing as a stupid question. I will do my best to answer all questions related to the class material. If I do not know the answer, I will get the answer. When someone stumps me, I know I have their attention.
Teachers learn from their students, just as students learn from their teachers.
I believe true learning is born out of inquisitiveness. If you memorize facts and pass the final exam, you are not contributing to your own learning. Each discussion is a learning experience. Discussions provide a means to test your ideas. Not only does the individual benefit from participating in discussion, but the whole class.