Figure 2: Procedure on Fridays: The host is in the main session. The tutors are trained in the virtual room and familiarized with the software. After that the tutors are allocated to the break-out sessions (group rooms). One tutor teaches a group of approx. 6-7 participants. 10 minutes before starting the participants join the meeting. The host allocates them to their respective small groups. The tuition starts. Over the whole course of time the host stays in the main session and is available for tutors and participants. At the changeover, only the tutors leave the break-out sessions and return to the main session where the host allocates them to the next group. The participants remain in their break-out session. All in all, there are five switches on a Friday. (P = participant; MT = medical tutor)