# Maths KS1 & KS2: How long is quarter of an hour?

**Sabrina needs to make a 15 minute long video of Tempo for a talent show. The children give examples of activities which take 15 minutes – like eating lunch or walking to school.**

They use multiplication to find out how many of their one-minute activities they can do in 15 minutes.

Sabrina shows how 15 minutes is a quarter of the clock, so we call it quarter past.

graphic shows how a quarter is half of a half.

We see how the clock moves from 11 o’clock to quarter past 11 as Sabrina films Tempo doing impressions.

From BBC Series Round the Clock.

*Teacher Notes*

**KS1:**

*This could be used to explore the concept of a quarter. Find a quarter of different items by finding half of a half.*

*Children could be asked to find the quarters of different shapes by folding.*

*Count the number of a quarter of 60 beans by sharing the beans onto four plates.*

*Ask the students to find a quarter of a clock face by folding a cardboard clock face. Count how many little lines there are on the clock when the minute hand has moved quarter of the way round.*

*Children can investigate what they can do in 15 minutes: can they run round the playground or read a page of a book? What else can they do?*

**KS2:**

*Children could make a display of different ways to show a quarter: e.g. a quarter of shapes, quantities, ¼, quarter of an hour etc.*

*Investigate ways to find a quarter of different amounts. Help the children to recognise that finding a quarter relates to dividing into 4 equal amounts.*

*In pairs, children can investigate what they can do in 15 minutes. They can draw a clock showing where the minute hand is pointing on the class clock, and draw another one showiing where it will be pointing in 15 minutes.*

*Challenge the children to find out what different activities they can do in 15 minutes. Can they write the alphabet 15 times, write out a poem or do a jigsaw?*

*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.*