Short Blocks

Maths Year 5 Summer Measures and Data

Each unit has everything you need to teach a set of related skills and concepts.

24-hr timetables; calculate time intervals (suggested as 4 days)

Planning and Activities

Day 1 Teaching
Revise 24-hour clock times. Revise counting up on a time number line to calculate time intervals in the context of school lessons, e.g. from 10:45 to 11:35, 13:30 to 14:45, 11:50 to 12:35.
Group Activities
-- Calculate time intervals on the class timetable.
-- Calculate time intervals on the class timetable, then compare with lesson durations in a younger class.

Day 2 Teaching
Ask questions requiring simple interpretation of the Hogwarts Train Timetable, e.g. What time does the 08:45 reach Ottery St Catchpole? Convert 24-hour to 12-hour times and vice versa. Then ask questions requiring calculation of time intervals, e.g. How long does the 08:45 from Diagon Alley take to reach Ottery St Catchpole? Which is the fastest train between Kings Cross and Hogwarts?
Group Activities
-- Investigate journey times by interpreting a train timetable.

Day 3 Teaching
Use and interpret the timetable for the North Yorkshire Steam Railway. Practise writing 24-hour times as 12-hour times. Calculate time intervals and solve reasoning problems.
Group Activities
-- Plan itineraries using a real railway timetable.

Day 4 Teaching
Give fictitious train delay announcements, e.g. The 14:48 to Birmingham New Street is running approximately 37 minutes late as a result of sheep on the line near Worcester. Model counting up on a number line to find the new departure time. Repeat.
Group Activities
-- Use counting on on a number line as a strategy for adding a time duration to a start time.

You Will Need

  • Mini-whiteboards and pens
  • Your class timetable
  • Class timetable from Y1 (or other class with a different timetable)
  • ‘Hogwarts Train Timetable’ (see resources)
  • ‘North Yorkshire Moors Steam Railway timetable’ (see resources)

Mental/Oral Maths Starters

Day 1
Read the 24-hour clock (pre-requisite skills)

Day 2
Converting between the 12- hour and the 24- hour clock (pre-requisite skills)

Suggested for Day 3
Pairs to 60 (simmering skills)

Suggested for Day 4
Units of time (simmering skills)

Worksheets

Day 1
Calculate elapsed times.
Create a schedule for DIY tasks.

Day 2
Interpret a fictional timetable, including reading times and calculating durations.

Day 3
Interpret a fictional timetable, including calculating elapsed times.

Day 4
Given start times and an elapsed time, find journey end times.

Mastery: Reasoning and Problem-Solving

  • True or false?
    13:40 is twenty to two in the afternoon.
    Midnight is 00:00.
    Midday is 12:00 on the 24- hour clock.
    19:15 is quarter past 7 in the morning.
    1 hour after 15:00 is six o’clock pm.
  • Calculate how long it is between:
    13:40 and five to 5 in the afternoon.
    Quarter to midday and 17:23.
    Five past midnight and ten to midday.
  • If each bus is 40 minutes late, write its new arrival time.
    (i) Number 31 bus due at 12:55.
    (ii) Number 22 bus due at 13:04.
    (iii) Number 15 bus due at 14:44.
  • The number 4A bus arrived 27 minutes late at 00:14. What time was it due?

In-depth Investigation
Use the investigation described in the group activities for Day 3.

Extra Support

Two Clocks
Consolidate children’s understanding of telling the time on analogue clocks. Two Clocks from nrich.maths.org.