# Fifty swap-in contexts · one new example for each block

Use these to vary domain or access without changing the subject concept, 12-minute structure, kit safety or evidence threshold. All cases are invented unless an official source is explicitly named. Day 15/20 checks remain fresh; use their swap-in only *after* the check for reteaching. No learner has to reveal a home, health, identity or cultural experience.

| Day | Science | HASS | HPE | Technologies | The Arts |
|---:|---|---|---|---|---|
| 11 | Use identical tactile beads versus mixed bead shapes to expose the limit of a colour-only particle model. | Trace an invented rain → drain → creek diagram; request real flow data before any local claim. | Compare two comfortable tabletop reach patterns with the same target. | Design a rest for a light sketchbook rather than a paperback. | Echo an arm gesture with a slower final beat. |
| 12 | Filter teacher-approved clean gravel-water sample; compare what a coarse screen cannot remove. | Compare invented neighbourhoods by distance to a library and an accessible crossing. | Replace a fastest-wins rule with a shared team accuracy goal and actually test. | Fold two card support bases with identical paper thickness. | Refine a hand canon using feedback from a private viewer. |
| 13 | Use a soft block sliding on a marked table to compare opposite-direction gentle pushes. | Use a British Museum summary of farming beside the Nile to ask what an ancient source might add. | Audit an anonymous “never rest” fictional caption without giving exercise advice. | Compare used thick paper with new thin card by measured stability and missing lifecycle data. | Improvise a fictional timetable error between two characters. |
| 14 | Remove fictional insect card from a model food web and add an unknown alternate food link. | Test an unsupported “ancient coin” claim about a classroom-made disc labelled yesterday. | Roleplay denying use of an invented video clip in a group task. | Revise a support by widening its base while keeping load constant. | Play a short scene from visitor then organiser perspective. |
| 15 | Keep Science A; reteach using a new sieve and gentle left/right force arrows. | Keep HASS A; reteach with a map missing scale and a prop missing provenance. | Keep HPE A; reteach with a scoring rule that rewards team passes. | Keep Tech A; reteach using a lightweight tablet-shaped cardboard model, never a real heavy device. | Produce two frames for a fictional lost-property notice, with complete time/place facts. |
| 16 | Review invented 5, 6, 5, 1 mL results and a documented spill without deleting the anomaly. | Match PEO-based Parliament/executive/judiciary roles to a different fictional decision. | Build a first/backup help route for a fictional new club member. | Decode a 4×4 black/white checker pattern using row-major 0/1. | Present a two-frame paper notice to a willing reader and correct a hidden fact. |
| 17 | Add motion arrows to a dot model of an imagined gas and state what is not measured. | Draft a fair response to two views on an invented library quiet-zone proposal. | Rewrite a fictional “follow me or leave” group message as an open invitation. | Trace a nested classifier for fictional books needing accessible/quiet shelves. | Compose two soft eight-beat layers with a rest in layer B and sound them. |
| 18 | Plan a fair low-ramp comparison with one added paper weight and fixed release point. | Compare invented tool-repair and delivery businesses by good/service and missing data. | Rotate cue-giver, mover and observer in a safe tabletop team task. | Remove birthday from a fictional equipment-finder wireframe and peer-test navigation. | Make the same two-layer pattern more spacious by removing one sound. |
| 19 | Write conditional advice about a fictional pond model without visiting or disturbing a pond. | Ask what official source and seller terms are needed for a fictional “lifetime” shoe claim. | Plan a supervised flat outdoor route plus indoor alternative; log whether participation happened. | Run and debug a second fictional route case in the supplied offline Python starter. | Create a paper composition that uses a narrow empty path through crowded shapes. |
| 20 | Keep Science B; reteach with a new three-link fictional web and dot-model limitation. | Keep HASS B; reteach with a new PEO role and an unsupported sales promise. | Keep HPE B; rehearse a changed-mind consent and group invitation response. | Keep Tech B; retrace a 2×2 inverse diagonal and a no-access route. | Present a revised collage privately and ask what visual space is noticed first. |

**Keep the boundary:** The alternative is a context, not fresh official data or proof of impact. A safe plan, actual action and observed result remain different records. First Nations knowledge, artefacts, Country/Place and languages require appropriate community authority and review before any addition.