Module 5 Measuring
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Can I work out how long it is between two times?

Example review questions

  • A cake went in the oven at half past 10. It was cooked at 10 past 11. How long had it been in the oven?
  • A PE lesson starts at 2.25pm and finishes at 3.10pm. How long is the lesson?
  • How long is it between the times on these two clocks?
    Two clocks: one digital, one analogue. The digital clock is showing eight thirty-five, and the analogue clock shows nine o'clock.
  • You arrive at Blackpool at 12.30pm. You left Leeds at 10.10am. How long did the journey take?

Teaching guidance

This teaching guidance document suggests some of the key vocabulary, models, images and practical equipment that children should experience and be able to use. It also includes some teaching tips to provide a few starting points for ways of supporting children with this area of mathematics.

DOC file Can I work out how long it is between two times? - teaching guidance | 320KB new window

Consolidation and practice

These resources are to support children in guided or independent work. Roll over the highlighted resource for a description.

PDF file How to use tell the time ITP | 303KB new window

SWF file Tell the time ITP | 66KB new window

XLS file Number boards time | 111KB new window

DOC file Number boards time guide | 78KB new window

Tell the time

itp_tell_the_time.png

This interactive teaching program (ITP) is an ICT-based tool to support the exploration of telling the time. Tell the time ITP allows the child or teacher to set and compare times on an on-screen analogue and digital clock.

Opportunities to use and apply

Possible contexts include:

  • cooking, e.g. The pie has to cook for 25 minutes. What time could it go into and come out of the oven?
  • work out the actual time if the clock is 10 minutes, 20 minutes, one hour or five minutes slow.
  • keeping a diary of how children spend their time during a school day, e.g. How long do you spend each day at school, watching TV, playing computer games? How do you know?
  • calculating elapsed time, e.g. How many minutes is it since you arrived at school, came in from play, got up?
 

Confirming learning

Ask probing questions such as:

  • Children need to eat their lunch between 12 o'clock and 1.30pm. They are allowed 45 minutes. Can you tell me three possible pairs of start and end times?
  • Kevin leaves home at quarter past eight and arrives in school at 20 to nine. How long does his journey take? How did you work this out?
  • Finish labelling the time line. Can you tell me how long it is between the start and finish times?
    A time line showing three fifty pm, four pm and four fifthteen pm. Three fifty is the start time, four fifthteen is the finish time.