AC9M3M03 • Year 3 Maths

Time Units and Duration (AC9M3M03)

recognise and use the relationship between formal units of time including days, hours, minutes and seconds to estimate and compare the duration of events

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Unit focus

  • Time units have fixed relationships: 60 seconds = 1 minute, 60 minutes = 1 hour and 24 hours = 1 day. Suitable units help compare event durations.
  • Use this routine: Choose unit → Use conversion → Estimate → Calculate duration → Compare.
  • Watch for using 100 minutes per hour: Time uses 60 minutes per hour.
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