This study investigated help-seeking activities in a computer-based environment teaching argumentative skills by videos of argumentative dialogues of teachers who discussed controversy issues in the context of a workshop. Learners, all of them students of educational sciences, solved learning tasks on the presented argumentative dialogues and…

We investigated whether and how prior knowledge activation improves learning outcomes for high school (less experienced learners) and university students (experienced learners) in a hypertext environment. Map coherence was defined as the extent to which relationships between the concepts in the map were made explicit. Therefore, we classified the…