Hi Ruth:
You're right, as a student one ting they'll dislike is a class that's disorganized, unplanned, with a teacher who is not able to present the material in a logical, sequential manner.
Students expect (and deserve) a teacher who is confident and competent, able to field questions right along in the flow of the class, with resources ready at hand, and able to deliver the content as a subject matter expert.
This takes time, enregy and effort, thought, planning, and a eagerness to to provide the best class they can every time.
Regards, Barry