# Day 38 · Follow a public water-supply clue

**Start:** “Where does this town's supply story begin?”

**Purpose:** Use a dated public source for a bounded local example and separate natural cycle from human water supply.

## Prepare

Read today's complete model and two contexts before the session. Paper, a pencil and the full written picture words are sufficient. Optional actual water work follows [ordinary preparation](../teacher/PREPARATION.html); the teacher chooses suitable familiar materials/instruments. Use today's three routes without assigning a fixed learning-style label.

## Run the session

1. Reconnect: a tap delivers water; it does not identify the original source by itself.

2. Model: read F5 with its Council URL and 9 October 2026 review date. Build Barrage → Glenmore Water Treatment Plant → Rockhampton/Gracemere supply. This is the stated public system example, not a verified household connection.

3. Try: children label a human supply route beside a natural-cycle model. Treatment is a human process; the source here does not teach detailed treatment chemistry or verify current water quality.

4. Compare: replace the named places with a made-up town. Ask which facts would need a new publisher/source before calling the result real. A review date is not a page publication date.

5. Make: a visitor card states one useful named fact, the responsible publisher/date reviewed and one limit. Adult source help carries the full links/rights and local replacement procedure.

6. Exit: “This source tells us __. It does not tell us __.” No addresses, household survey or outdoor trip is requested.

## Three ways in

### Public-route mapper

Arrange the three named source cards with supply-route arrows; compare to the process-labelled natural model.

**Worked ordinary reasoning:** The Council names the Barrage, Glenmore plant and Rockhampton/Gracemere service; these supply arrows are not evaporation or precipitation.

### Visitor caption

Write, dictate, sign or type a two-line public information caption and a limit; a helper can read the Council fact aloud.

**Worked ordinary reasoning:** A Council example names Glenmore's Barrage source. It does not prove my home's current connection or water quality.

### Source checker

Use a complete adult-approved broad public source card from another locality, or the supplied F5 card; separate stated/reviewed/unknown dates.

**Worked ordinary reasoning:** I name the publisher and reviewed date; if no publication date is stated I keep “not stated”.

## Look and choose the next teaching

Named bounded fact, sensible source/date distinction and no unsupported household/Queensland-wide claim.

If supply and natural arrows are mixed, rebuild one of each with their exact named jobs.

## Today's complete resources

[A13 · whole labelled picture](../aids/A13.svg) · [A13 · complete picture words](../aids/A13-alternative.html)

[C15](../contexts/C15.html)

[C16](../contexts/C16.html)

[H08](../home/H08.html)

[X08](../projects/X08.html)

[Short child start](../child/day-38.html) · [Written read-aloud](../narration/day-38.html) · [Water Trail and paper](../interactive/index.html)

Partial opportunities: AC9S4U02, AC9S4H02, AC9S4I06 · [Full mapping and limits](../teacher/CURRICULUM.html)

<details>
<summary>Grown-up help</summary>

Allow source access and neutral reading/support. Keep supplied story, child response, helper actions and actual observation distinct. Use component-specific criteria after the response, not a model answer before it. Suggested six-move timing 4/7/12/8/6/3 minutes may be split; there is no performance timer.

Modified from [Year 4 Science alignment](https://www.qcaa.qld.edu.au/downloads/aciqv9/science/curriculum/ac9_science_yr4_as_cd_alignment.pdf), [standard elaborations](https://www.qcaa.qld.edu.au/downloads/aciqv9/science/assessment/ac9_science_se_yr4.pdf) and [Years 3–4 techniques and conditions](https://www.qcaa.qld.edu.au/downloads/aciqv9/science/assessment/ac9_science_tc_yr3-4.pdf), © State of Queensland ([QCAA](https://www.qcaa.qld.edu.au/copyright)) 2023, covered [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) with exceptions. Our task criteria are original; these are not official A–E bands. Actual folio and on-balance professional judgment remain necessary.

</details>