End the meeting for everyone

The class is overrunning and I need to end the meeting for everyone now. Stop new joins, tell people the call is closing, then end the meeting so no one stays behind; do this at 3:05 PM so the next teacher can start on time.

Before I end the meeting for everyone, make the ending clean and non-awkward—surface who is still sharing their screen, list any unsaved whiteboard items, and flag if anyone is recording or if breakout rooms are active so I can resolve them first.

I just announced we need to finish and saw someone still sharing a tab. I am afraid that ending abruptly will lose their last slide or an active recording. I cannot tell if anyone is in a breakout room or if the recording is final. Should I stop the share and end the meeting immediately, pull participants back from breakout rooms first, or pause to ask the presenter to stop and save? Recommend the least disruptive sequence.

Across several classes I lose five minutes after the scheduled end because people are still sharing, recordings are active, or breakout rooms haven’t closed. Which habit should I change to avoid this—an earlier announcement, a checklist before the last slide, or a default setting change—and how to implement it so the next teacher can take over on time?