In my readings in the text I really became engaged in the concept of giving students choices.  I think that this avenue not only leads to more power sharing but in all more responsibility on the part of the students.  I think that the more we are able to let hte students choose different items the more positive reinforcement we are providing them.  In my own classroom I sometimes make assignments that allows the students to know to choose which assignment they complete and ones that may spark more interest for the students.  I believe that the more choices you are able to provide to the students the more involved and interested they become in the subject and the class.