# QCAA source, row crosswalk and partial boundaries

Checked **29 September 2026** against the official [QCAA General Mathematics page](https://www.qcaa.qld.edu.au/senior/senior-subjects/syllabuses/mathematics/general-mathematics) and [General Mathematics 2025 v1.3 General senior syllabus](https://www.qcaa.qld.edu.au/downloads/senior-qce/syllabuses/snr_maths_general_25_syll.pdf), published January 2026. The page says the syllabus applies to students completing in 2026 or later. [source-snapshot.json](source-snapshot.json) records its identity and page references. This is a **Queensland senior syllabus**, not an ACARA Version 9 P–10 year-code mapping. `GM-U1-T1` is local SubjectNest shorthand, **not an official QCAA code**.

QCAA places **Unit 1: Money, measurement, algebra and linear equations** at PDF p. 16 / printed p. 14, then **Topic 1: Consumer arithmetic** and the subtopic **Applications of rates, percentages and use of spreadsheets (14 hours)** at PDF p. 17 / printed p. 15. A unit has 55 notional hours including assessment. The first three SubjectNest fortnights each contain ten 25-minute model periods, totalling **750 minutes = 12 hours 30 minutes**. Even that planned duration is less than the 14-hour subtopic; quantity alone would not prove coverage or learning. Schools determine actual sequencing and delivery within syllabus requirements. Unit 1 Topics 2–5 and Unit 2 are separate future work.

## Printed page 15 subject-matter bullet map

The bullet numbers below reflect their order on QCAA printed p. 15. This is an **independent paraphrase**, not QCAA wording or an exhaustive account of each expectation. Consult the official source before teaching. A prompt or model touches only the named part; a learner response is needed to judge understanding.

| QCAA row | Official subject-matter focus, paraphrased | This fortnight's evidence | Limit and remaining work |
| --- | --- | --- | --- |
| Printed p. 15 bullet 1 | Rates and percentages. | All calculation days label a rate or percentage base and unit. | A few invented examples do not establish fluent mastery. |
| Printed p. 15 bullet 2 | Wages by period or hourly rate, including overtime, allowances, commission and piecework. | Days 21–22 model stipulated additional-hour rates and a once-only allowance; Check A transfers both. | These multipliers and allowances are **not** Australian awards or entitlements. Period conversion, piecework and commission were in [Weeks 3–4](../weeks-03-04/README.md). Actual legal pay and deductions remain outside this pack. |
| Printed p. 15 bullet 3 | Government allowance/pension income-support payment calculations. | None. | **Unaddressed**. Do not replace current eligibility and rates with invented claims; any future real-value lesson needs current official sourcing and school review. |
| Printed p. 15 bullet 4 | A budget for a given income with fixed and discretionary spending. | No new budget lesson here. | [Weeks 3–4](../weeks-03-04/README.md) offered fictional budget models, not a personal real-world budget. |
| Printed p. 15 bullet 5 | Unit-cost comparisons. | No new unit-cost lesson here. | The [opening pack](../../../term-1/weeks-01-02/mathematics/LESSONS.md) addressed a case; this fortnight cannot stand in for that evidence. |
| Printed p. 15 bullet 6 | Percentage increase/decrease and applications such as mark-up, profit/loss, GST and simple interest. | Days 23–24 compare cost-based mark-up with price-based gross margin; Day 26 reverses a percentage change; Check A transfers base choice. | Margin is a related comparison, **not** a separate syllabus row. The invented figures are not actual inflation, tax or net-profit data. Other percentage contexts require further examples and assessment. |
| Printed p. 15 bullet 7 | Conversion between Australian dollars and foreign currency. | Day 27/Card M and Check B use AUD and USD with **stipulated fictional** rates; the offline file lets learners vary a model rate. | No current quote, exchange date, spread, fee, provider or real transaction is established. Source a dated real rate separately if a lesson requires actual market data. |
| Printed p. 15 bullet 8 and formula lines | Share dividend/yield calculations and P/E comparison. | Days 28–29/Card N and Check B compute annual dividend dollars, dividend yield and two P/E ratios. | All companies and figures are fictional. A dividend and ratio do not predict a return, value a company or recommend a purchase. |
| Printed p. 15 bullet 9 | Spreadsheet display for repeated computations. | Day 27 supplies an optional [offline rate-switch workbook](print/rate-switch.xlsx) with two formula rows and a paper equivalent. | The file being present does **not** prove any learner used or audited it. Observe and record actual spreadsheet action separately if targeting this bullet. |

QCAA lists Unit 1 objectives on printed p. 14, including using/communicating mathematics, evaluating reasonableness and justifying a decision. The labelled checks and limitation statements create limited opportunities to see those behaviours. They are not a full objective-by-objective assessment. The syllabus's printed p. 5 gives Units 1–2 school assessment requirements; our Day 25 and 30 [checks](STUDENT-CHECKS.md) are **public formative practice**, not those formal instruments or secure exams. Their [public worked key](teacher/KEY-AND-NEXT.md) requires first-work collection before feedback and new locally authored variants when prior access matters.

## Source and fact ledger

| Claim or input | Source and verification boundary |
| --- | --- |
| Version, Unit 1/Topic 1 structure, 14-hour subtopic, bullet map, formulas for simple interest/dividend yield/P-E, school autonomy | Official [QCAA syllabus](https://www.qcaa.qld.edu.au/downloads/senior-qce/syllabuses/snr_maths_general_25_syll.pdf), PDF pp. 6–7 and 16–17 / printed pp. 4–5 and 14–15; page checked 29 September 2026. [QCAA subject page](https://www.qcaa.qld.edu.au/senior/senior-subjects/syllabuses/mathematics/general-mathematics) identified v1.3. This document paraphrases, and its claim of coverage is independent. |
| Wage multipliers, allowance, prices, percentage changes, exchange factors, dividend and earnings/share | **Original invented classroom assumptions** in this pack. They are neither current rates nor observed data. Arithmetic is independently verified locally. |
| Real-world pay, foreign exchange, company valuation, suitability | **No claim made**; the pack names omitted conditions. Teachers must consult current authoritative material before any real-world treatment. |

The official PDF was read in QCAA's rendered web result, but direct command-line download returned HTTP 403; no QCAA source-byte hash is claimed. The [local verifier](verify_pack.py) pins the dated source identity and hashes **our** authored files. Recheck the live official page for later reuse. QCAA content is attributed **© State of Queensland (QCAA) 2026** under its [copyright notice](https://www.qcaa.qld.edu.au/copyright); QCAA has not reviewed or endorsed this pack. See [rights and original-content ledger](SOURCE-AND-RIGHTS.md).