Bounds
All described events are original supplied fiction. No local experiment, child success, measurement, reader hearing ability or annual attainment is supplied.
Child invitation
Count records without counting an unknown as silence.
Different child try
Child chooses an unrelated everyday job and writes/draws one source/action clue plus one unknown. Do not copy the ordinary worked sentence; keep any actual event distinct.
Materials
Full printed/readable source, blank paper guide and optional exact scribing/AAC; no required device/audio/material purchase.
Next teaching
If missing means zero, use an unrelated seed-packet story: two packets have counted seeds, third is unopened. Ask whether unopened means empty, then return to the missing sound report.
Observe
Listen/read/point for the exact source-qualified distinction named in the invitation; record authorship, support and actual/supplied/model mode. A selected label without its meaning does not prove the whole understanding.
Role
ordinary teaching/worked model; never independent held assessment evidence
Teacher moves
Make one token mean one event row, including the not-recorded report row.
Whole original context source and possible worked
C09 fictional makers-fair log: tray/tap—“short soft”, paper/rub—“scratchy”, lid/tap—no sound report supplied. Possible table has three rows and an unknown label on the third; two described reports and one unrecorded report, not “two sounding objects and one silent object”.