Verification, sources, and calibrated confidence
Check important statements against the source.
Reviewed: 2026-10-03
Source-based teaching example · Fictional data
Narration: Microsoft Mark · locally synthesized

00:00:00.000 — What you will learn

Check important statements against the source.

Visual description:
Check important statements against the source.

00:00:05.625 — The idea

A statement can sound right and still change what the source means. Check the wording, date and approval separately. A correct date does not make the rest of a sentence correct.

Visual description:
A statement can sound right and still change what the source means. Check the wording, date and approval separately. A correct date does not make the rest of a sentence correct.

00:00:19.542 — One useful term

Claim. A statement that you can check against evidence.

Visual description:
A statement that you can check against evidence.

00:00:26.125 — A worked example · 1

The source says teams may seek approval for a draft-only trial. Publication review is scheduled for 20 October. A draft changes this to “All teams must publish by 20 October.”

Visual description:
The source says teams may seek approval for a draft-only trial. Publication review is scheduled for 20 October. A draft changes this to “All teams must publish by 20 October.”

00:00:41.792 — A worked example · 2

That changes both the rule and the date’s meaning.

Visual description:
That changes both the rule and the date’s meaning.

00:00:47.292 — Your turn to think

Is a review date the same as a publication deadline? Pause and decide before continuing.

Visual description:
Is a review date the same as a publication deadline?
Pause the video if you need more time.

00:01:03.958 — Why this answer works

No. Keep the review date, but remove the invented deadline and requirement. The sources also do not show completed approval.

Visual description:
No. Keep the review date, but remove the invented deadline and requirement. The sources also do not show completed approval.

00:01:15.583 — Check 1

Match each important claim to a source passage.

Visual description:
Match each important claim to a source passage.

00:01:21.417 — Check 2

Keep permission different from obligation.

Visual description:
Keep permission different from obligation.

00:01:26.792 — Check 3

Remove invented results and quotations.

Visual description:
Remove invented results and quotations.

00:01:32.417 — Now try a different case

Open the lesson and try its different practice case. Use every check in the full task. Watching alone does not mark the lesson complete.

Visual description:
Open the lesson
Try the new case
Check and revise
The full task and its requirements are in the linked lesson.