Week 5 · Five disciplines · One expedition
A coastline has vanished from every trustworthy atlas. Restore its scale, read its landforms, predict the drift, question the old stories, and defend a route without hiding uncertainty.
Scale sets the distance. Landform evidence finds a viable shore. Current and climate change the route. Sources mark hazards with honest confidence. The final decision makes every constraint visible.
20 minutes
Math · Scale and proportional reasoning
Use a map scale as a proportional relationship and keep map units separate from real distance.
Make
A scale restoration note
Story handoff: The restored scale puts the first landing within reach. Yet the old coastline no longer matches the shore: cliffs, valleys, and a hidden channel must be reconstructed from elevation clues.
20 minutes
Geography · Landforms and contour evidence
Interpret contour spacing, river valleys, and water depth as connected evidence about landform shape.
Make
A coastline reconstruction
Story handoff: The middle inlet gives the expedition a physical landing place. Before anyone sails, the map must account for the forces that move a boat away from the line drawn on paper.
25 minutes
Earth science · Currents, wind, and coastal climate
Use rate and direction to predict drift, then distinguish a current measurement from a weather forecast.
Make
A crossing forecast
Story handoff: The drift forecast redraws the approach line. One problem remains: surviving journals disagree about a reef near the entrance, and the map cannot treat every dramatic story as equally reliable.
25 minutes
Language arts · Sources and narrative reliability
Corroborate claims across sources and distinguish direct observation from rumor and later retelling.
Make
A source reliability ledger
Story handoff: The reef is marked as a supported hazard with an uncertain boundary. Now the expedition council needs one final map that makes every calculation, inference, warning, and decision visible.
25 minutes
Geographic reasoning · Synthesis and risk
Synthesize quantitative, physical, environmental, and source evidence into a transparent route decision.
Make
A defensible expedition map
Story handoff: The council approves Route Alder as a testable plan, not a promise. The Lost Coast returns to the atlas with its measurements, evidence, and honest unknowns intact.
Attempts stay on this device. Finished work stays finished, and the family portfolio shows only evidence the learner actually completed here.
