# Day 21 — Spot the change

Resource Weeks 05–06 · flexible 25-minute offer; select a smaller part and fit the actual HASS allocation.

[O1 complete card](../stories/O1.html)

[Child start](../child/day-21.html) · [Home offer](../home/H01.html) · [Extra project](../projects/X01.html).

**Purpose/product:** Name a feature and make a small before/after record that another reader could follow. Selected K03/K04/S01–S03/S06. Prepare O1, two broad scraps or an empty two-panel sheet, a marked front edge and a simple key. Optional real route: a teacher-approved classroom display/storage feature with a known description, no sensitive layout; without an earlier actual record, today's observation cannot establish change.

**Invite 3:** “What is different in these two cards? Which bit would you like to show?” Read their fiction label. Introduce feature, front and a key with one actual paper symbol.

**Model 5:** On O1 locate the bench from the lower front edge. Say: “Built bench in both cards; nameplate added in the later card. The source does not say who added it.” Show how a natural material and a deliberately tended arrangement can have different useful aspects; don't classify by green/grey colour or erase possible management.

**Guide/own 10:** First match one repeated feature to both cards. Then let the child choose two features, show a meaningful location and add source/date labels or their agreed exact account. Ask a wanted helper to follow the child's placement rather than invent the idea. If using a real current feature only, label current observation and keep the earlier box unknown.

**Three selectable mechanics:**

1. **Build/direct a two-scene model:** Place broad symbol slips on two reachable mats with the same front. Keep one repeated feature in both; add the sourced change only to the later mat. Tell what each symbol means.
2. **Make a flip picture:** Fold paper or use two separate panels; draw/mark the chosen feature and its later clue. Flip between panels and point to the source that supports each.
3. **Tell a feature-finding story:** Use usual communication to direct a helper's two-card placement, or describe the exact relationships without objects. Name source/date and what changed; no physical model-making claim for an unmade description.

**Compare 4:** Put source and own record side by side. Keep or correct one location/date. **Check 3:** “Show one thing the cards kept and one thing they changed. Which clue helped?” Look for sourced same/change and an actual own record; not neatness. If colour is the only classification clue, model naturally formed hill/planted garden/built rail using new ordinary words. If location is absent, practise beside with two reachable shapes; if no earlier evidence, retain today without inventing yesterday.

[Whole practical aid](../aids/fern-corner.svg) · [Complete alternative](../aids/fern-corner-alternative.html) · [Own blank aids](../aids/INDEX.html) · [Care Story Bench/paper](../interactive/PAPER.html).

[Preparation](PREPARE.html) · [Actual capture](CAPTURE.html) · [Framework and criteria scope](CURRICULUM.html).
[Sources and reuse](../SOURCE-NOTICE.html). Original activity; selected guidance Modified from linked © State of Queensland (QCAA) 2023 under CC BY 4.0 and document exceptions. No official rating or endorsement.