Gill & Macmillan Hume Avenue Park West Dublin 12 www.gillmacmillan.ie


ISBN: 978 07171 53879 © Brian O’Doherty 2014


Design: Design Image and Richard Jervis Internal illustrations: Kate Shannon Technical drawings: Design Image Cover illustration: www.designbos.ie Consultant editor in mathematics curriculum and pedagogy: Betty Stoutt Mathematics consultant: Oliver Hyde


The paper used in this book comes from the wood pulp of managed forests. For every tree felled, at least one tree is planted, thereby renewing natural resources.


All rights reserved. No part of this publication may be copied, reproduced or transmitted in any form or by any means, without written permission of the publishers or else under the terms of any licence permitting limited copying issued by the Irish Copyright Licensing Agency.


Any links to external websites should not be construed as an endorsement by Gill & Macmillan of the content or view of the linked material.


All photos © Shutterstock


The publishers have made every effort to contact copyright holders but any omissions will be rectified at the next reprint.


The author would like to acknowledge the significant contribution made by Aoife Travers in the development of these materials.

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