I've found (and I'm sure you can relate to this) that with the online instruction mode the mix of student demographics creates a problem when presenting materials and discussion. My "solution" is to break the online "chat" demonstration/lecture into "chunks" (segments), where I will cater to each age group so that it keeps them from becoming easily bored. I also host a weekly "workshop" where students can attend if they have any specific issues that need handling, and in each case I can then gear the discussion to the appropriate level. This seems to work well, although certainly not perfect, it has improved attendance to the chats. Has anyone had similar issues and experiences?