How would you describe an effective classroom?  That's an example of an open-ended question - the type of question that all effective teachers must utilize.  This episode is all about the necessity of weaving an inquiry-based approach into your classroom.  Challenge them to explore, use information, and demonstrate skills by asking probing questions that require those things.  Ultimately, they will learn to become more motivated and resourceful.  More importantly, they will learn to ask their own questions.