Teacher copy: This page may include teaching prompts or answer keys. Answer keys in this public library can be viewed by anyone. Give learners a clean prompt, use checks as formative evidence, and change a case locally when prior access matters.
Target/codes: preserve V V S V, revise only place 2 to S, and compare V S S V; AC9AMUFD01, AC9AMUFC01. Prepare:E revision board, Practice F.
Welcome · 3 min. Keep both versions visible; same source, pitch, event duration and four positions.
Model · 4 min. Replace only second-row place 2 V with S. The first V→S lift moves from 2→3 to 1→2; the final S→V release stays at 3→4.
Try together · 5 min. Child overlays rows, finds the one changed card, and checks that the other three stayed identical.
Child choice · 7 min. Child chooses which timing fits a fictional parcel opening, a boat nearing a dock, or a plain score; they can propose a different one-card revision and say why.
Notice · 4 min. Save both versions, the single changed place and intention. Do not claim the revision sounded different to a listener without a trial.
Close · 2 min. Tomorrow the child owns the whole dynamic path.
