Some of the sources I have used.
Tecnicas Participativas Para la Educacion Popular, Laura Vargas Vargas et al., Alforja. The best handbook of techniques for popular educators also presents an argument for popular education as a dialectical method integrating theory and practice in the context of social and political movements.
Games for Actors and Non-Actors, Augusto Boal, Routledge, New York 1992. Great material -- a collection of games that explore a wide range of physical, emotional, social, and political motions and relationships.