Display the timetable as pupils settle. Remind the class the times are in 24-hour notation, so 13:55 reads as just before 2pm. Give about ten seconds of quiet look-time, then take two or three hands-up answers. Don't resolve it yet — that's what Watch and Notice does. Listen for whether pupils are reading the arrival column, not the departure one.

Walk each example aloud, one at a time.

• Find a departure and arrival — point along the Dublin row then down to the Cork row for the same bus; stress that the column number stays the same as you move down.
• How long does the journey take? — for the 11:20 to 13:55 bus, count up: 40 min to 12:00, then 1 h 55 min to 13:55, giving 2 h 35 min. We count on, we never subtract the minute digits.
• Which service is fastest? — the 08:00 bus takes 3 h, the 11:20 bus takes 2 h 35 min; the later bus is the faster journey. Head off the idea that the first bus to leave is always the fastest.

Draw a simple circle for the Earth with Dublin on one side and Sydney on the other to show why the two places face the sun at different moments. Walk the two worked shifts on the board: count back 5 hours from 15:00 for New York (10:00), then count on 11 hours from 15:00 for Sydney, slowing down at midnight so the class sees it crosses into the next day to reach 02:00. Stress: east = ahead, west = behind. This is the on-screen model pupils will reproduce in the copybook moment, so use the same 15:00 anchor.

This round is for talking it through together — pupils take turns at the board and the class agrees or corrects out loud.

Bring an individual pupil to the board to tap the departure cell and the arrival cell; the class reads the elapsed time off the tool and agrees or corrects. Rotate three or four pupils. Watch for pupils reading the wrong column when they move down a row — remind them the column number stays fixed. Revoice a strong answer: so the bus leaves at 09:30 and arrives at 12:40, that's 3 hours 10 minutes.

This round is the practice bank — pupils take turns at the board, check each timetable answer on screen, and the class confirms before moving on. Keep the board work brisk rather than over-explaining.

The on-screen widget handles the journey-duration challenges; pupils predict the duration before the pupil checks. The Sydney stretch is a teacher-led board calculation, not an on-screen check: count on 11 hours from 17:00 with the class, and head off the trap of forgetting it crosses into the next day (17:00 + 11 h = 04:00 the next day). Use the on-screen check on the timetable answers as part of your narration: yes — that's it.

Recap the count-on method for durations once more before moving on. Cross-curricular bridge: this links to geography work on the wider world and the position of countries east and west of Ireland.