Medical case discussion

Using an X-ray as a clickable image, ask participants to identify the affected area of the body after a case study.
Upload your own diagnostic images, and ask the group to tap problem areas on their mobile device screens.
This is a great way to check understanding during the course of instruction. It takes less than a minute to assess the entire class, and then either move on or explain further depending on the results.
More types of activities

Sprint retrospective
Gather feedback on the last sprint cycle to improve efficiency and productivity during the next sprint.

Weekly check-in
Make it a routine to ask your team about challenges they may be facing. Building check-ins into processes is critical during times of crisis.

Audience demographics
Put subsequent question responses in context by gathering some quick demographic data from the audience.