Kanter (2015) highlights the difference in interaction approaches based on the number of participants.
- Up to 10 students: These are characterised by a conversational tone, feeling of sitting around a table with everyone having air time. There is the opportunity to get to know each other and build social capital that can lead to sharing of personal stories and experiences in a trustworthy environment. Many face-to-face activities are adaptable to this size group. Here is where you can encourage people to ask their questions live – via their microphone versus the chat. But remember, encourage use of hand-raise so that students don’t speak over each other.
- Up to 25 students: There is limited air time for everyone to speak, but you can get input from everyone quickly using a chat or polling feature to stimulate and focus the discussion. If materials are shared ahead of time, with reading assignments or brief exercises, there is more interaction.
- Up to 50 students: The connection between participants is less intimate. Back channel facilitation, chat, polls, and other tools are critical for a high level of interaction and to keep people engaged. When the size of the group is over 25, it requires more focused Q&A. It is best to avoid live (where people unmute and ask their questions), but make use of the chat or polls. Prioritise questions so they align with content, and design content in 10 minute chunks with breaks for Q/A.
- Over 50 students: You need to use all the techniques for a medium webinar, but with more deliberative audience polls sprinkled through the session that helps focuses attention on the key content ideas. Be sure to capture and edit the group chat comments online as part of the takeaways.