The vocabulary around daily standups and the agile ceremonies, roles, and artifacts that surround them.
A chart showing remaining work in the sprint over time — ideally trending down to zero by the last day.
Like a burndown chart but tracking completed work trending up — and it also shows if scope itself increased mid-sprint.
How much work the team can realistically take on this specific sprint, accounting for holidays, on-call, meetings, and people being out.
Work quietly getting added to a sprint after it's already started, without anyone officially replanning.
How many story points a team typically finishes per sprint, averaged over recent sprints.