# SLOP4408 — Week 10: Move Through the Model

Campus / printable lab pack · Semester 1, 2027

## The task

Plan a journey for its purpose: fast dispatch, support through a checkpoint or deliberate sampling of instrumented cells.

In-person teaching is preferred. The paper route is a complete conceptual activity when apparatus is unavailable; online students use the equivalent controls and keep the same learning record.

The investigation, experiment, agreement or revision is this week's practical output. A staged field handover is optional and cannot replace the reasoning record.

## Learning outcomes

- Compare routes against an explicit objective and its distinct conditions.
- Predict a step-by-step contact trace using the cell-entry rule.
- Revise route or prediction after a changed map and defend the trade-off.

## Equipment

A 5×5 printed grid, a player counter, four sensor markers, route arrows and a prediction sheet.

## Facilitator setup

Draw a 5×5 grid, mark start and destination, and highlight the published sensor cells for the chosen phase. Keep all cells and rules visible.

## Complete supplied rules

**Where to find the named materials:** These labels identify the supplied material on this page and in the combined campus pack; they are not separate files you need to locate. **SN-01** is the numbered grid, start, destination and cell-entry contact rule. **SN-02** supplies the published sensor layout for each phase; record which layout governs each route and trace.

- A 5×5 grid uses rows 1–5 from north to south and columns 1–5 from west to east.
- Start: row 5, column 1. Destination: row 1, column 5. Each action moves one cell north, south, east or west; boundaries prevent leaving the grid.
- Practice sensor cells: row 3, columns 1–4.
- Skill-check sensor cells: column 2, rows 2–5. Transfer: column 4, rows 2–5.
- A contact is counted on each executed step ending in a sensor cell, including revisits. Predict the total before stepping through the route.
- Contacts are explicit game events, not automatic failure. Reach the destination and reconcile the predicted and observed counts.
- These are published board-game detection rules, not specifications for real surveillance.
- Select an objective before planning: **Fast dispatch** reaches the goal within eight moves; **Support** visits centre row 3, column 3 before the goal; **Survey** visits at least two distinct sensor cells before the goal.
- All objectives need a correct predicted contact count. Zero contacts are not automatically best.

## Two-hour schedule

These are the teaching session's time blocks, not six compulsory game objectives. Adjust timing as needed; reasoning matters more than speed.

| Time | Activity |
| --- | --- |
| 0–10 minutes | Compare dispatch, support and survey objectives and why their routes differ. |
| 10–30 minutes | Inspect the alternate route example and locate contacts step by step. |
| 30–60 minutes | Choose an objective and compare two routes by moves, checkpoints and contacts. |
| 60–80 minutes | Execute the selection and find the first mismatch; test the second layout independently. |
| 80–105 minutes | Apply changed coverage and decide whether route, prediction or both must change. |
| 105–120 minutes | Keep both routes, maps, trace and an objective-based justification. |

## Worked example · a different scenario

The separate gallery example numbers cells 0–24 from top left. Its first route is 20→15→10→5→0→1→2→3; with sensors at 15, 16 and 11, it records one contact. An equally long route through 20→21→22→23→18→13→8→3 records none. When the published sensors move to 21, 22 and 23, that second route records three contacts. The earlier zero remains correct under the earlier rule. Your assigned lab uses its own row/column map and destination; copy the counting method, not these cell numbers. A later survey objective requires three instrument contacts. Under that requirement the three-contact route is useful, while a route chosen simply to avoid every contact would miss the objective.

[Watch this separate example and inspect its finished record](/demonstrations/lab-10/).

The example explains a method. Its completed decisions are not the assigned task. Use the materials above for your own choices.

## Practice

Choose one objective. Draw two routes, predict costs and contacts, then execute the chosen path.

## Skill check

Use the second sensor layout and independently verify that the route serves its selected objective.

## Transfer challenge

Use the changed coverage and compare an alternative objective. Explain why fewer contacts do not settle the choice.

## Student record

**Named output: sensor-route.**

Keep the objective, two routes with costs and dependencies, prediction before movement, actual trace and reason for selecting one.

Record your name/role, phase and scenario, prediction before action, evidence requested, result, decision, alternative and remaining uncertainty. Include assistance, format used and any physical-model limitation. Keep a failed attempt that explains a revision.

The investigation, experiment, agreement or revision is this week's practical output. A staged field handover is optional and cannot replace the reasoning record.

## Explanation — reveal after an attempt

Check objective, destination and predicted trace together. Dispatch, centre support and deliberate survey have different conditions. An extra contact can be justified, while a zero-contact route missing its required checkpoint fails its purpose.

A facilitator judges the reasoning. The record's existence and the model's successful result do not by themselves establish learning.

## Facilitator evidence cards · reveal on request

Fast dispatch must reach row 1, column 5 within eight executed moves. Support must visit row 3, column 3 on the way. Survey must enter at least two different sensor cells. All routes need the correct predicted contact count. Repeated entry counts as another contact but does not make a second distinct sensor.

Reject a route that satisfies a preferred contact count but misses its objective. Accept additional contacts where the objective and trace support them. Ask for a contrasting candidate rather than rewarding one shortest route by habit.

The full pack remains available for accessible and solo study. Label assistance if you inspected all cards before choosing a test. No hidden rules or secret grading are involved.

## Reflection and later use

Which rule did your first mental model leave out?

A physical final recovery needs a route suited to its load and equipment. Digital and stabilisation approaches need relevant evidence rather than compulsory token navigation.

## Evidence and limitations

Save **sensor-route** with your explanation. Physical activities are proposed teaching designs, not hardware-tested equipment. Distinguish model-card results from actual measurements. Neither browser success nor paper completion establishes physical dexterity or classroom enjoyment. A dated station record is sufficient; a duplicate browser run is not required.

## Printable model sheet

[Printable circuit and grid sheet](./circuit-sensor-sheet.svg). Print at 100% on A4 and check the labelled 50 mm line. These are conceptual paper aids, not physically validated apparatus.
