A traditional teaching laboratory is generally made up of an instructor with a team of demonstrators roaming the room, one for every 10-20 students or so depending on the demands of the coursework. Awareness of the ANU COVID-19 protocol for in-person teaching highlighted the extent to which the demonstrators relied on "hands-on" aspects, through the need to see the student's screen and occasionally taking over the mouse and keyboard in frustration. Remote learning obviously circumvents this problem but highlights the difficulty of working with a student with little "contact". This is also a frequently raised objection by students to remote instruction that solely relies on video. Some form of interaction is needed. For one-on-one tuition meeting calls such as with Zoom, WebEx, Skype, Teams with screensharing capability may be sufficient but when one-to-many are involved then there needs to be strategies for classroom management.