# Paper sign station ## Id N08 ## Original component B-first-Q4 ## Target criterion Rejects endpoint-only proof: the proposed path attempts C2, which is expressly closed. An endpoint match does not establish the legality of its preceding path. ## New job title Paper sign station ## Source Fictional paper scene: Paper sign station. There are 5 columns A to E, left to right, and 4 rows 1 to 4, top to bottom. All cells have the same size. Up/down mean towards the top/bottom of this page; left/right across this page. One move reaches one neighbouring cell, never a diagonal. Start: A4. Target: E2. The name-card is at A1; the spare-card is at E4. Closed cells: B4. Do not enter or pass through them. Proposed instruction: 4 cells right, then 2 cells up. A supplied helper says: “Reaching the target proves every preceding step is legal.” This is a supplied scene. Read its whole legend before the questions; it is not a real place, a measured route or an observed journey. ## Mathematical data ### Source Fictional paper scene: Paper sign station. There are 5 columns A to E, left to right, and 4 rows 1 to 4, top to bottom. All cells have the same size. Up/down mean towards the top/bottom of this page; left/right across this page. One move reaches one neighbouring cell, never a diagonal. Start: A4. Target: E2. The name-card is at A1; the spare-card is at E4. Closed cells: B4. Do not enter or pass through them. Proposed instruction: 4 cells right, then 2 cells up. A supplied helper says: “Reaching the target proves every preceding step is legal.” This is a supplied scene. Read its whole legend before the questions; it is not a real place, a measured route or an observed journey. ### Columns 5 ### Rows 4 ### Start A4 ### Target E2 ### Moves - right - 4 - up - 2 ### Closed - B4 ### Visited - A4 - B4 - C4 - D4 - E4 - E3 - E2 ### Endpoint E2 ### First closed B4 ### Claim Reaching the target proves every preceding step is legal. ### Features #### Start A4 #### Target E2 #### Name card A1 #### Spare card E4 ## Invitation Check the endpoint-only helper claim using the closure rule and all proposed positions. ## Teacher moves Read the exact supplied helper statement on Paper sign station. Show why a geometric endpoint does not authorise a closed preceding cell: mark the first attempted closed location and the rule. Receive a checking explanation before showing the staff possibility. ## Worked possible response Endpoint-only proof fails: first attempted closed cell B4 violates the whole-path rule. ## Guided source Fictional paper scene: Paper sign station—new guided scene. There are 4 columns A to D, left to right, and 4 rows 1 to 4, top to bottom. All cells have the same size. Up/down mean towards the top/bottom of this page; left/right across this page. One move reaches one neighbouring cell, never a diagonal. Start: A4. Target: D2. The name-card is at A1; the spare-card is at D4. Closed cells: B4. Do not enter or pass through them. Proposed instruction: 3 cells right, then 2 cells up. A supplied helper says: “The proposed endpoint makes the whole route legal.” This is a supplied scene. Read its whole legend before the questions; it is not a real place, a measured route or an observed journey. ## Guided data ### Source Fictional paper scene: Paper sign station—new guided scene. There are 4 columns A to D, left to right, and 4 rows 1 to 4, top to bottom. All cells have the same size. Up/down mean towards the top/bottom of this page; left/right across this page. One move reaches one neighbouring cell, never a diagonal. Start: A4. Target: D2. The name-card is at A1; the spare-card is at D4. Closed cells: B4. Do not enter or pass through them. Proposed instruction: 3 cells right, then 2 cells up. A supplied helper says: “The proposed endpoint makes the whole route legal.” This is a supplied scene. Read its whole legend before the questions; it is not a real place, a measured route or an observed journey. ### Columns 4 ### Rows 4 ### Start A4 ### Target D2 ### Moves - right - 3 - up - 2 ### Closed - B4 ### Visited - A4 - B4 - C4 - D4 - D3 - D2 ### Endpoint D2 ### First closed B4 ### Claim The proposed endpoint makes the whole route legal. ### Features #### Start A4 #### Target D2 #### Name card A1 #### Spare card D4 ## Guided invitation Check the endpoint-only helper claim using the closure rule and all proposed positions. ## Guided staff possible response Endpoint-only proof fails: first attempted closed cell B4 violates the whole-path rule. ## Receive own steps - Read/hear the whole new source and name the actual requested job. - Receive the learner’s own idea in their usual communication before the staff response. - Teach the precise relationship using the separate complete model; name mathematical hints. - Deliver the complete different guided source and invitation. Receive a fresh response before its staff possibility. ## Review criterion Rejects endpoint-only proof with the actual closed-cell evidence. ## Observe and next Record the exact relationship available in the response and the help, leaving absent evidence open. If it is missing, repeat that same relationship on a smaller complete source. If secure, change the scene/quantity or representation explicitly; do not infer annual mastery. ## Access Point, speak, sign, AAC, tactile labels, large marks or exact child-directed scribing/moving. No speed, handwriting, robot, printing or public sharing criterion. ## Transfer limit Different supplied complete new and guided contexts; no remembered original held source or real learner improvement is claimed. ## Grant Original © NeuroForgeIO Pty Ltd 2026, SubjectNest, CC BY4.0.