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.
Goal: identify one planned change and multiple steady conditions in a fair comparison. Proposed codes: AC9SFU02, AC9SFI01, AC9SFI05. Prepare:setup map, M first paragraph, broad fixed labels, Card 92.
Recall · 3 min. Revisit yesterday's question and label it M or actual plan, never an actual result.
Read · 4 min. Read “same carton, tray, start line, tilt, no-push release”; name face placement as the planned change.
Model · 5 min. Teacher deliberately moves a paper START label, then says that would be another change and spoil a clean comparison.
Child try · 7 min. Card 92 routes place/say one-change and three-steady labels; teacher asks which changed condition must be corrected before a new trial.
Check · 4 min. Ask if two different cartons plus two different tilts could isolate face placement. Child says why not, without needing technical vocabulary.
Exit · 2 min. Retain child-made same/change plan as planning evidence only.
