Island ferry
An imaginary island ferry leaves at 09:20. The journey lasts 45 minutes. When does it arrive?
Departure: 09:20 → __________ → Arrival: __________
Draw a number line or explain how you crossed the hour.
All resources
Small puzzles. Shared discoveries.
Question a mistake, solve a mission together, or see a familiar skill somewhere new.
A journey in two worlds
Compare the situations. What changes, and what stays the same?
Fictional journeys · elapsed timeCountryside train
An imaginary countryside train leaves at 09:20. The journey lasts 45 minutes. When does it arrive?
Departure: 09:20 → __________ → Arrival: __________
Draw a number line or explain how you crossed the hour.
The connection
Different places can share the same mathematical structure.
Both questions give a start time and a duration. Try both before opening the answer key.
Original rule-based practice · Variation 42. Age bands are guidance. Review suitability before teaching. Public links contain generation settings only, never learner progress.