The PDF/SVG is an optional A4 page with six large boxes in order. Nothing depends on colour, an icon or a tiny mark. A teacher may use six numbered pieces of plain paper, six tactile cards, a text document with the headings below, or a speech/AAC sequence. Let the learner direct an adult's placement if needed; record who selected the factors and explanation. Do not require writing speed, hand strength, vision or spoken English to establish the multiplication and source reasoning targets.
- Chosen fictional option and exact source row. Write or say book swap, games meet, garden model, mini museum or a clearly labelled revision. State the Source A equal-group count and cards-per-group count.
- What the source says and cannot tell. Give one exact source fact, then one unknown such as actual visitor preference, real cost or long-term usefulness. The unsigned flyer is a claim to test, not evidence.
- Estimate first. Name both factors, a nearby easy pair, an approximate total and whether rounding was up or down. An estimate near the 900 limit prompts an exact calculation.
- Exact product. Show groups × cards per group = total cards. Explain a partition, grid, inverse fact or other inspectable efficient route. Keep place value visible.
- Compare with 900. Is the exact total ≤900? By how many cards? Add another possible viewpoint without inventing a survey or claiming actual access success.
- Recommendation, limit, next question and revision. Give a short bounded choice, then what remains unknown. Preserve the first version and label one later change. A proposed change in a factor makes a new plan, not a new answer to the original calculation.
For a tactile build, use six large numbered strips or tiles placed top to bottom. Put 900 as a separate large reference card. Use broad counters or equal group cards, not small loose pieces where they are unsafe. Read the exact original source text aloud if needed; record that this supports comprehension, not independent print reading. No device, printout or purchase is necessary.
The PDF is a conventional print layout and is not asserted to be a tagged accessible PDF. Use this complete plain-text alternative or the accessible SVG for digital reading. Original SubjectNest wording and design © NeuroForgeIO Pty Ltd 2026, CC BY 4.0; credit, link and note changes.