This text is an exercise in participatory action-research where the authors take their roles. The second author, uses a selected material collectively to achieve the objectives of the class; the first, performs an action of participant observation process support. Proceeds from this cooperated action is a text for engineering professors and teachers architecture through Reference Center for Advanced Education. This article aims to emphasize the possibility of exchanges, to promote a critical analysis of the materials used and arise changing teaching practices aimed at the ends of the Cuban university. For the assessment of educational impact of the experience that describes and analyzes is used, in general, the methodology of participatory action-research. The authors focus for analysis in four concepts that bear discussion for the formative act with engineers and architects is an ongoing critical exercise. Key Words: Educational paradigm, educational medium, Formation of engineers and architects in Cuba.