This is an author simulation of finished files, not a classroom pilot, observation of an actual student, chemistry-teacher endorsement, specialist accessibility review or impact study. No physical chemistry activity was carried out. A future class and school's qualified teacher must review pacing, safety, lab sequence and assessment placement.
Teacher planning pass
I followed the start page to Day 3, then practised the 2 + 4 + 5 + 7 + 4 + 3 minute sequence on paper with the carbon-12, oxygen-16 and magnesium-24 model cards. The instruction, learner action, exit and worked next move agree: C p6 n6, O p8 n8, Mg p12 n12. The whole-number A versus decimal standard atomic-weight warning prevents a predictable misconception. Day 7's neutral-to-positive-ion script keeps p/n fixed and changes electrons only. Every day's stated preparation uses supplied pages; there is no chemical or hidden platform dependency. Timing is planned, not observed, and additional access/processing time may be needed.
Learner and access pass
I completed Day 4 Route A on C-12/C-13 and Cl-35/Cl-37, then Route B by aligning full-word Z and neutron strips; both asked for the same isotope evidence. I then treated Day 5 Files R/S as first-encounter cards and independently calculated B-10 p5 n5 e5 and B-11 p5 n6 e5 before opening the public key. For Day 10 Files T/U, the count mat yielded Ca-40 2+ p20 n20 e18 and F-19 1− p9 n10 e10, checked both by p+n=A and p−e=q. The public key accurately states the numbers and limits. A dictated or AAC explanation can evidence the Chemistry target while independent reading remains a separate construct; chemistry hints must be logged.
Supporter and potential funder pass
A time-poor supporter can use the optional paper invitations without a subscription, chemical purchase, home experiment or personal disclosure. Original contexts span museum displays, recycled materials, wetlands, garden soil, catalogues, sports equipment and coastal signs while explicitly refusing to treat those story labels as real assays or safety claims. Three route types per day preserve the same calculation/claim target and let a learner switch. The free-use statement attaches to SubjectNest's original writing/diagrams; QCAA/IUPAC/source and DejaVu rights are identified separately. The pack is openly limited to 250 minutes of a 20-hour topic, not a compulsory subject, complete unit, QCAA assessment, lab outcome or proven learning effect.
Print, sources and calculation checks
- Rendered three SVGs to single-page A4 PDFs, then to a contact image. Visually inspected all at page scale: headings, rules, word labels and edges remained legible without observed clipping. The atom diagram carries a visible nonliteral-ring warning; tints are supplementary. PDF text and embedded-font checks are in
verify_pack.py. The PDFs are untagged, so the full-text guide supplies accessible reading order. - Checked current Chemistry 2025 v1.3 and printed pp.19–22/assessment p.6 against QCAA's official live PDF and landing page; independently checked Z/A/isotope/ion definitions with IUPAC and example isotope identities with CIAAW plus NIST magnesium spot-check. No third-party figure or exercise was copied.
- Independently recomputed every practice and held-out p/n/e triple, then embedded the structured data and arithmetic invariants in the verifier. The check cases are new relative to daily practice but their answers are public, so no secure-test claim is made.
Open local review: Senior Chemistry teachers should check school sequence, pacing, assessment and later inquiry. Access specialists and actual learners should try the text/tactile/print paths with their tools. No Aboriginal or Torres Strait Islander knowledge, language translation, medical effect, local sample provenance, or cultural example was invented to make the pack look comprehensive. Community and specialist collaboration is needed for those additions. No student data was collected.