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Id
C-first
Title
Display ledge diagram
Source kind
Original supplied fiction; provider knowledge is separately attributed. No actual child/local trial or reader success supplied.
Complete neutral source
Complete original fictional display-ledge diagram account. Drawn labelled bases M and N use a printed centimetre scale from zero with equal1cm intervals. M spans0–3cm; N spans0–5cm. Those are supplied diagram readings, not dimensions of real rocks or the child’s own ruler measurements. The diagram records no prior prediction. Its display-reader job is to compare these two drawn bases accurately. A separate new plain-paper measuring plan could ask which chosen paper base is longer, use a familiar centimetre ruler with zero aligned and the same base direction, and keep an actual prediction before its own measurement. No new paper result is supplied.
Exact four prompts
- Compare the two supplied drawn base lengths with their unit and a real-object limit.
- Is a before-measurement prediction supplied here? Explain using the account.
- Make two matching record rows for M and N with supplied base length and source/unit.
- With guidance, propose one suitable ruler-reading step for the separate new paper plan and keep its result open.
About this resource
Reviewed source editionSource review is complete for this two-week edition. Local suitability and classroom use still need review. Earlier candidate or pending-review words are retained in the original files; full-year coverage, translations and audio are not claimed.
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Exact source: 089d6ac9ec4293ea4b949980b0e79e5cbf08fc82 · 2026-10-13. Source edition, roles and hashes
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