In recent years, teachers have increasingly started to conduct pedagogical activitiesto promote different kinds of learning interactions supported by rich media. The deployment ofsuch activities is becoming common practice as teachers and students own technological meanssupporting them along such educational interactions. Such activities could be carried out inindoor settings while using regular computers. In addition, these activities could be alsoconducted from anywhere at any time while using smartphones and tablets. In this paper, wedescribe a multiphase pedagogical activity requiring students to author and later peer- assesseducational interactions incorporated to videos in YouTube. We describe the EDU.Tubeenvironment enabling them to create, share and consume such educational and rich mediaactivities across technological environments. We then detail a plan for the implementation of aneducational strategy taking place in 3 different classes dealing with diverse materials addressingcomputer science related topics. We also provide an evaluation presenting students' insights andfeedbacks resulting from the experienced activity. We discuss and elaborate on these outcomesin order to analyze them as concerns that could be applied to a further deployment of theEDU.Tube environment. Finally, we suggest that these set of concerns could be useful alsowhile designing and developing other technological environments offered for authoringeducational interactions supported by rich media aimed to empower teachers' pedagogicalpractice.