A-first neutral own job · staff judgement
Actual source reading may familiarise the paper scene neutrally. Record actual instruction/support and teach before using a component. Later is a new offer after a real teaching interval; no universal familiarity or progress is claimed.
Whole neutral source
Fictional paper scene: First bookmark-table scene. There are 3 columns A to C, 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: C2. The name-card is at A1; the spare-card is at C4. All cells inside the grid are open. Proposed instruction: 2 cells right, then 2 cells up. A supplied helper says: “This instruction records only four positions, including its start.” 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.
A-first-Q1
Name or mark the supplied start and target positions on this scene.
Criterion
Identifies start A4 and target C2 in the declared row/column convention.
After-own staff possibility
Start A4; target C2.
Teach this relationship, check actual opportunity and receive own words before staff models. Later requires a real teaching interval, not a day label.
A-first-Q2
Follow the complete proposed instruction. Where does its final marker position land?
Criterion
Follows the full instruction in its stated order and identifies endpoint C2; no new feature or coordinate is invented.
After-own staff possibility
A4, B4, C4, C3, C2; final C2.
Teach this relationship, check actual opportunity and receive own words before staff models. Later requires a real teaching interval, not a day label.
A-first-Q3
Give a complete legal route from the supplied start to the supplied target. A different route is welcome.
Criterion
A complete orthogonal path begins at A4, stays inside the grid and reaches C2; every amount/direction is stated, not just the destination.
After-own staff possibility
2 cells right, then 2 cells up; A4, B4, C4, C3, C2.
Teach this relationship, check actual opportunity and receive own words before staff models. Later requires a real teaching interval, not a day label.
A-first-Q4
Is the supplied helper claim supported? Use positions or one-cell moves from this exact scene to explain.
Criterion
Rejects the four-position claim: four one-cell moves create five recorded positions including the start.
After-own staff possibility
Positions A4, B4, C4, C3, C2: five positions, four moves.
Teach this relationship, check actual opportunity and receive own words before staff models. Later requires a real teaching interval, not a day label.
Answers/criteria/fullNEXT/adult models remain staff-only. Complete source facts/labels and supplied helper claim are neutral input, not prefilled child responses.
