Build a source register and resolve conflicting versions
Choose the source that actually applies, not just the newest-looking page.
Reviewed: 2026-10-03
Source-based teaching example · Fictional data
Narration: Microsoft Mark · locally synthesized

00:00:00.000 — What you will learn

Choose the source that actually applies, not just the newest-looking page.

Visual description:
Choose the source that actually applies, not just the newest-looking page.

00:00:07.375 — The idea

Record who issued a source and which period and people it covers. Publication date is different from effective date. Keep conflicting records and explain which applies.

Visual description:
Record who issued a source and which period and people it covers. Publication date is different from effective date. Keep conflicting records and explain which applies.

00:00:20.875 — One useful term

Source register. A list of sources with their dates, scope and the passages used.

Visual description:
A list of sources with their dates, scope and the passages used.

00:00:29.750 — A worked example

The applicable program notice says applications close on 30 June for local residents. An archived flyer has an older deadline. A recent blog expands eligibility without original evidence.

Visual description:
The applicable program notice says applications close on 30 June for local residents. An archived flyer has an older deadline. A recent blog expands eligibility without original evidence.

00:00:45.833 — Your turn to think

Does the newest blog automatically override the notice? Pause and decide before continuing.

Visual description:
Does the newest blog automatically override the notice?
Pause the video if you need more time.

00:01:02.750 — Why this answer works

No. Authority and applicability matter too. Keep the blog’s expanded eligibility unsupported.

Visual description:
No. Authority and applicability matter too. Keep the blog’s expanded eligibility unsupported.

00:01:12.792 — Check 1

Check scope and effective period.

Visual description:
Check scope and effective period.

00:01:17.792 — Check 2

Preserve contradictory records.

Visual description:
Preserve contradictory records.

00:01:23.000 — Check 3

Explain which passage controls the answer.

Visual description:
Explain which passage controls the answer.

00:01:28.583 — 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.