Useful job: Record motion and shape separately when one action has both kinds of result.
Target opportunity: AC9S1U03 / AC9S1I03 / AC9S1I04 / AC9S1I05 / AC9S1I06. Complete ordinary sources: C13/C14; their full original fictional bodies and separate worked/next accounts are in ORDINARY.md. Use the full curriculum/reference module for scope; code labels are not attained criteria.
Six teaching moves
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Read C13’s complete simultaneous movement/shape record. Invite two useful clue labels, not a forced choice of only motion or only shape.
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Ask where the piece began and ended, then what its edge looked like before/during/at rest. A stationary finish does not erase earlier movement.
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Model C14’s different piece/history contrast. Its different resting shape is observed in the fiction, but the source does not isolate history as the cause.
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Choose a two-window organiser, an announcer repair or an own ordinary record review. Use full supplied facts and retain an absent clue as unknown.
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Invite a concise explanation linking action to the actually supplied effects, then one further question. Adult writing/moving supports are attributed. No cause beyond the given action/change relation is demanded.
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If motion is reported as an exact whole path from endpoints, name the limit. If one feature is missing, leave its cell empty/unknown rather than borrow the other feature’s answer. Stop before adding unasked extra trials.
Three engagement choices
Route57.1 · Two clue windows. Use C13. Child places/directs or speaks one motion clue and one shape clue into two separate broad spaces. Each has its own source sentence; one label cannot manufacture the other.
Route57.2 · Fix the announcer. Read C13 and the new wrong line “It ended still, so it never moved.” Child repairs it using the start/action/end record. Silence, AAC or a helper’s exact scribing can carry the explanation.
Route57.3 · Review one ordinary try. Select an available wanted actual paper-game record or full C14. Child asks whether both motion and shape were recorded. Unrecorded feature stays unknown; do not perform a new action merely to fill every space.
Small check: Keeps motion and shape as distinct supported observations and preserves missing data or history limits.
Targeted next teaching: Use C13’s separate start/end and shape moments if a single label replaces both; use C20’s missing result when an empty record is filled by guess.
Finish invitation: “Would you keep this, change something, ask a question, or finish?”