# Year 9 · integrated inquiry · Term 1, Weeks 3–4

**Ten distinct 35-minute sessions, Days 11–20.** A fictional Paper Screen team makes an exact-halving claim. Learners use Year 9 exponent reasoning, source critique, model/data comparison, method design and accountable language to decide whether a small supervised retest is justified. Week 3 develops the test of the claim; Week 4 weighs repeated invented values and builds an audience-specific recommendation. This is an integrated inquiry supplement, **not a complete Year 9 curriculum or weekly subject allocation**.

## Use in class

1. Staff first read [lesson plans](LESSONS.md), [Sources A–E](SOURCE-PACKET.md), [crosswalk](CURRICULUM-CROSSWALK.md) and [teacher-targeted answer/next-move guide](teacher/ANSWER-AND-NEXT.md). The source packet and [learner studio](LEARNER.md) can be shared with learners.
2. Print the five [A4 aids with full text/tactile alternatives](print/TEXT-ALTERNATIVES.md). Black-and-white printing preserves headings and box order. Use paper strips, large/reflowable text, AAC, signed or exact-word scribed responses as suitable; keep the same claim/source/model demands. The PDF is selectable text; SVG source and [print generator](print/make_print.py) are supplied.
3. Introduce [Check A and Check B](STUDENT-CHECKS.md) on Days 15 and 20, respectively. The [teacher-targeted worked key](teacher/ANSWER-AND-NEXT.md) is also a public file, so these are **fresh transfer prompts relative to the lessons, not secure exams**. Avoid displaying the key during first responses, collect work before discussing answers, and adapt the fictional case/numbers when prior access matters.
4. Day 17 [offline interactive](code/README.md) is optional; paper calculation is equivalent for the inquiry. Any physical sensor work requires local school approval and equipment. Written plans and all provided numbers are not observations.

## Evidence and boundaries

The [rights/source ledger](SOURCE-AND-RIGHTS.md) names all external material, original assets and held claims. The [exact ACARA v9 crosswalk](CURRICULUM-CROSSWALK.md) includes 13 selected official Year 9 or Years 9 and 10 rows with partial boundaries. The [desk run-through](RUN-THROUGH.md) records teacher, learner and potential funder perspectives; this is a review of supplied materials, not a claim of classroom efficacy. Run `python3 verify_pack.py` to check rows, arithmetic, timings, routes, links, five print pairs, code behaviour and the hash [manifest](manifest.json).

**Public claim:** “A teacher-ready ten-day fictional integrated inquiry with accessible routes and source-bound checks.” Do not claim real optics, material safety, local First Nations translations, full course completion, or measured student impact.