Using footage taken at Toni and Guy Hairdressers in Manchester the interviewee describes how important a working knowledge of mathematics is in the world of hairdressing from the angle of the cuts through to taking payments at the till for products, cuts and colours. A haircut is made more difficult due to the shape of the head being 3D. How the cost of a cut varies from Manchester to Tokyo can bring in a wealth of mathematics to include currency conversion.Find out more about this series on the NCETM website: http://www.ncetm.org.uk/resources/13955