Only one paper-gate pair · separate next teaching
Complete unrelated fiction: Original unrelated fiction. A paper gate and cloth gate with the same broad outline are lifted once each on a mat. Their resting bends differ. Force and exact heights are unmeasured; no player has used them.
Own invitation: What does this pair leave open?
Teaching: Read the one-each limit and lack of player use. Invite one absent outcome or universal-claim limit. Let the learner keep a bounded comparison without demanding a false conclusion that nothing can be said.
Observable meaning: Difference in these resting bends can be described; every force/material, later attempt and player experience remain open.
This account is separate from held C-later-3. Offer only the wanted actual next learning opportunity, record the help/actor/exposure, and do not invent an observed response or later improvement.