In the current time of globalization, collaboration among people in virtual environments is becoming an important precondition of success. This trend is reflected also in the educational domain where students collaborate in various short-term groups created repetitively but changing in each round (e.g. in MOOCs). Students in these kind of dynamic…

Digital video and accompanying editing software are increasingly becoming more accessible for researchers in terms of ease of use and cost. The rich, visually appealing and seductive nature of video-based data can convey a strong sense of direct experience with the phenomena studied (Pea, 1999). However, the ease of selection and editing of…