Learning by Tagging - Supporting Constructive Learning in Video-Based Environments. - Lydia Harbarth; Svea Delsing; Florian Richtscheid; Volkan Yücepur; Florian Feldmann; Milad Akhavanfarm; Sven Manske; Julia Othlinghaus; Heinz Ulrich Hoppe (DeLFI, 2018)