Track version history

Before I send this to the department head, make the history readable: put the most recent teacher edits first, show what changed on each slide in one line, and highlight edits that restored earlier wording so reviewers can see reversions at a glance.

Thursday afternoon I updated learning objectives on slide 3 and the math teacher rolled it back overnight without explaining. I need to know who reverted it, what the earlier and later texts were, and whether there was a restoration to a pre-Thursday version. Advise the likely reason and the best next step to resolve this with minimal escalation.

Across term, multiple teachers edit the same lesson deck and we end up teaching different versions. I want to stop that. Where are we consistently losing control—naming, editing in-class, or lack of check-ins—and what one habit change will keep a single authoritative lesson each week?