# Maths KS1 & KS2: How long is five minutes

**Tempo says he’ll be out of the shower in 5 minutes to sing a song with Sabrina.**

She doesn’t believe him, and asks the children for ways of timing 5 minutes.

They suggest stopwatches, timers and clocks, and say when measuring 5 minutes is useful, for example when they are taking turns.

The children make Tempo a clock birthday cake, complete with 12 numbers and 60 minute markers.

The children use the 5 fingers on their hands to count the intervals between the numbers.

From BBC Series Round the Clock.

*Teacher Notes*

**KS1:**

*Children can use this to investigate the number five.*

*If each person has five fingers on each hand, how many hands would you need to show 10 fingers? 30 fingers? 60 fingers? 15 fingers?*

*Count in fives, initially whispering the numbers that are not multiples of five and say the multiples of five loudly so that the children learn the pattern.*

*Count the little lines round the clock to check that there are five little lines between each pair of numbers.*

*Count round the clock in fives, pointing to each number to work out how many little lines there are.*

**KS2:**

*Children could make a time number line, starting at 0 and marking in five-minute intervals.*

*Label each interval 5 past, 10 past, 15 past… 55 past, o’clock.*

*Continue the time number line for another 60 lines (a further hour). Write further labels of quarter past, half past.*

*Count backwards in fives from o’clock and write labels of 5 to, 10 to, 15 to… etc.*

*In pairs, write some questions to challenge others e.g. I started maths at five past 9 and worked for 40 minutes. What time did I finish? Use the time number line to help work these out.*

*Curriculum Notes*

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