Abstract
We are searching for meanings and mechanisms of learning activities through expression and communication, such as in workshops. For the purpose of this research, we developed the observation tool DDAA (Dynamic Diagram Activity Analizer). DDAA records learning activities and uses images, text and dynamic diagrams for observations during reviews after the activities. Particular attention is paid to the emotions of the observed persons, and it was attempted to visualize those feelings in dynamic diagrams which integrate the changes in the relationships.