Barbara,
One thing instructors need to remember is that adult students are just taller children. Of course the content and the activities need to be age appropriate and professional but the rewards can be simple things such as candy, smiley faces, etc.. My students get very competitive when we are reviewing for quizzes and playing Jeopardy. They want to win the prize what ever it may be. This is a fun time that results in a lot of learning.
Gary
Gary Meers, Ed.D.