The four original SVGs have title/description elements, and their matching A4 PDFs contain selectable embedded-font text. The sequence is never encoded by colour alone. For tactile use, print a raised-grid overlay or prepare labelled card/number strips; these standard PDF/SVG files are not themselves Braille or raised tactile sheets. A teacher can read the complete instructions below and record a learner's exact words through AAC/sign/scribe. Source numbers remain in the learner data.
Game-map scatterplot frame · SVG
Title “GAME-MAP SCATTERPLOT”. Subtitle: “Source G · nine fictional drafts · rooms against clue icons.” Blank graph. Horizontal axis Number of rooms (0–5) at integers 0,1,2,3,4,5. Vertical axis Clue icons (0–25) marked 0,5,10,15,20,25. Footer: “Two drafts may share the same x. Label each point and name the source.” No data points are plotted. Nonvisual: read each draft as (rooms, clue icons), arrange x-labelled stacks with y-number tiles; report direction, form and unusual value in text or speech.
Residual ruler · SVG
Title “RESIDUAL RULER”. Instruction: “Complete model and signed gap for each invented draft. Units: clue icons.” Columns: Draft; Rooms x; Listed y; M(x)=3x+2; y − M(x). The last two columns are blank. Rows: A 1/5, B 1/6, C 2/8, D 2/9, E 3/11, F 3/12, G 4/14, H 4/15, I 5/22. Footer: “A residual is a numerical difference, not an explanation of its cause.” Nonvisual: compare listed and model tiles in that order, then name the sign and icon unit.
Two-way grid · SVG
Title “TWO-WAY TABLE”. Instruction: “Source C · 50 fictional designs · fill the cells and margins.” Blank matrix rows Puzzle, Story, No theme assigned, All designs; columns Two-sided, One-sided, Total. Footer: “Check every margin twice: row totals → grand total and column totals → grand total.” Nonvisual: build four labelled row mats with two cell slots and total slot, then count down two columns. Keep “No theme assigned” in the full register.
Category claim audit · SVG
Title “CATEGORY CLAIM AUDIT”. Four large panels in reading order: CLAIM + SOURCE: “Who counted what? Which exact words overreach?” REFERENCE GROUP: “Numerator _ of denominator _ given ____.” EXCLUDED OR UNASSIGNED: “What still has a known second-variable value?” REPAIR + LIMIT: “Write a scoped replacement and a missing method detail.” Nonvisual: move four named cards in that order; require the group's name aloud with each fraction.
All source examples are invented. The public checks and teacher-targeted key are separate files but not access-controlled.