Maths KS2: Units of time

Ugly Sister, Graphica, has made a birthday cake for Erica, the puppet.

She is 40 months old today. Ugly Sister, Angular, has made a birthday cake too.

This one is for Mrs Aubergine who is 40 weeks old.

Three questions then challenge us firstly to work out how old 40 months is in years and months, how old 40 weeks is in months, and lastly asks us to work out how many days old we are today.

This is from the series: Let's Do Maths

Teacher Notes

Introduce conversions of units of time - from months, into years and months and weeks, into months and years.

Pupils will be able to use their knowledge of how many days there are in a week to build up multiples and remainders, to arrive at sensible solutions.

There are two differentiated questions that are closed and an open-ended question that could be the stimulus for further time investigations.

Curriculum Notes

This clip will be relevant for teaching Maths at KS2 in England and Wales, Second Level in Scotland and KS1 and KS2 in Northern Ireland.

More from the series: Let's Do Maths

Maths KS2: Investigating angles
video
Maths KS2: Measuring distance
video
Maths KS2: Capacity and measure
video
Maths KS2: Finding lines of symmetry
video
Maths KS2: Problem solving with money
video
Maths KS2: Playing with polygons
video
Maths KS2: Using a calendar
video
Maths KS2: Using a compass and reading maps
video
Maths KS2: Using weights and measures
video
Maths KS2: Using timetables and the 24 hour clock
video
Maths KS2: Using grams and kilograms
video
Maths KS2: Weighing and measuring
video
Maths KS2: Understanding radius and diameter
video