I have been using a curriculum guide for years that addresses one of the WA State CBA categories. The curriculum unit was created by Densho and released in 2007 (it can be found at http://www.densho.org/learning/civilliberties/densho1-t.doc).
Using this framework, I created FIVE powerpoints that aid with introduction and discussion of the Constitutional Issues topics related to the state CBA. They are all very specific and meant to be used in conjunction with this particular curricular unit.
Provided that the handouts in the unit (not included here - see link) and readings are done the night before each class, these Powerpoint presentations help guide discussions and lead to deeper discussions/understanding.
Each powerpoint can be done within a 60 minute period depending on level of class participation, discussion, or interest.