Fig. 1.

Prototypical sequence of an online histology course day. After joining the main session from the waiting room, the courses usually started with an overview about the course day and two or three multiple-choice questions about the content of previous sessions. Afterwards one sequences of theoretical introduction, demonstration of the slides in the virtual microscopy with live-time annotations and an instructed breakout room session with a certain task was performed, followed by a 10-minute break. The second half of the course day started with the same sequence as described above. During the breakout rooms the lecturer had the opportunity to jump through different rooms. One lecturer with host privileges remained in the main session in order to help students with technical issues and general questions. Towards the end more virtual microscopy and breakout room sessions were planned. At the end of the course day, an outlook of the next course day was given. Students got suggested assignments related to the topic. During some course days open questions in the main lobby were allowed (not shown).