What do you think about teaching fewer topics in greater depth?

What Do You Think
http://highered.mheducation.com/sites/0078024455/student_view0/part3/chapter7/what_do_you_think_.html
After you complete the exercise, record your reflections regarding what surprised you and what you learned here.

Watch the video clip (https://www.viddler.com/embed/4ba57d99/?f=1&player=arpeggio&secret=17384580) clip to observe students in an American Civics class learning about the law by role-playing different legal cases.
How do you feel about “learning by doing?”
What do you think about teaching fewer topics in greater depth?