DIGITAL FINAL PROOF Math Concept Reader A Nose for News and Numbers ca31os_lay_070109af_ll.indd 1 1/9/07 1:02:25 AM DIGITAL FINAL PROOF ca31os_lay_070109af_ll.indd 2 1/9/07 1:02:25 AM DIGITAL FINAL PROOF Math Concept Reader A Nose for News and Numbers by Linda Bussell Copyright © Gareth Stevens, Inc. All rights reserved. Developed for Harcourt, Inc., by Gareth Stevens, Inc. This edition published by Harcourt, Inc., by agreement with Gareth Stevens, Inc. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the copyright holder. Requests for permission to make copies of any part of the work should be addressed to Permissions Department, Gareth Stevens, Inc., 330 West Olive Street, Suite 100, Milwaukee, Wisconsin 53212. Fax: 414-332-3567. HARCOURT and the Harcourt Logo are trademarks of Harcourt, Inc., registered in the United States of America and/or other jurisdictions. Printed in the United States of America ISBN 13: 978-0-15-360179-8 ISBN 10: 0-15-360179-5 1 2 3 4 5 6 7 8 9 10 179 16 15 14 13 12 11 10 09 08 07 ca31os_lay_070109af_ll.indd 3 1/9/07 1:02:26 AM DIGITAL FINAL PROOF Chapter 1: Numbers and Mountain Math Sarah reads the Sunday paper aloud. She is a reporter for her school paper. She is always looking for new story ideas. This morning she reads an article about national parks. The parks belong to the people of the United States. They protect natural areas and wild animals. Anyone can visit a national park. Sarah’s mom says that she once visited Yellowstone National Park. Yellowstone contains nearly 60% of the world’s geysers. A geyser is a spring that occasionally shoots water and steam into the air. The most famous geyser there is called Old Faithful. Sarah decides to write an article about national parks. 2 ca31os_lay_070109af_ll.indd 2 1/9/07 1:02:27 AM DIGITA