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DIGITAL FINAL PROOF Math Concept Reader SPORTS CAMP ca35xs_lay_070109af_ll.indd 1 1/9/07 9:57:06 PM DIGITAL FINAL PROOF ca35xs_lay_070109af_ll.indd 2 1/9/07 9:57:09 PM DIGITAL FINAL PROOF Math Concept Reader SPORTS CAMP 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: 978-0-15-360183-5 ISBN 10: 0-15-360183-3 1 2 3 4 5 6 7 8 9 10 179 16 15 14 13 12 11 10 09 08 07 ca35xs_lay_070109af_ll.indd 3 1/9/07 9:57:13 PM DIGITAL FINAL PROOF Chapter 1: Camp Division It is summer, and school is over. Sports camp starts today and the campers are excited. They will play tennis, volleyball, and soccer, and they will run, hike, and swim. There are 336 campers in all, so they must divide into smaller groups to play sports. Bobby is one of three leaders at the camp. He divides the campers into three equal groups. Each group will have its own counselor. Bobby divides 336 by 3 and writes this on the board. 112 ) 3 336 He tells them that there are 112 campers in each group, and each group will have its own name. 2 ca35xs_lay_070109af_ll.indd 2 1/9/07 9:57:14 PM DIGITAL FINAL PROOF The teams take turns playing sports. The Falcons play tennis first! The three groups are named the Eagles, the Falcons, and the Hawks. They will take turns playing sports, so that there will be enough equipment for everyone. To start, the Eagles will play volleyball, the Falcons will play tennis, and the Hawks will play soccer. Sometimes the campers will hike, swim, and run, too. The leaders make three lists. They add the name of each camper to a list. That means they add 112 names to each list. When they are done, each of the 336 campers will be in a group. 3 ca35xs_lay_070109af_ll.indd 3 1/9/07 9:57:16 PM DIGITAL FINAL PROOF Next, the leaders organize the groups. Some of the campers help them divide everyone into teams. James and Rebecca help the Falcons make teams for doubles tennis. In doubles tennis, there are two players on each team. They need to find out how many teams to make, so they divide 112 by 2. The Falcons will have 56 teams for doubles tennis. James lists the numbers from 1 to 56. Rebecca reads the names of the campers, and James writes two names next to each number. Soon, they have a list of 56 teams. James and Rebecca figure out how many doubles tennis teams they need to make. 4 ca35xs_lay_070109af_ll.indd 4 56 2 112 -10 12 -12 0 1/9/07 9:57:20 PM DIGITAL FINAL PROOF James and Rebecca make a schedule for the doubles tennis games. Two teams will play each game, so James divides 56 by 2. “If everyone plays at the same time, there will be 28 games!” James says. “That is a lot of tennis games.” “Everyone cannot play at the same time,” Rebecca says. “There are only seven tennis courts. Those who are not playing will swim or hike. How many groups of games do we need to schedule so everyone can have a turn to play?” she asks. 28 2 56 -4 16 -16 0 ca35xs_lay_070109af_ll.indd 5 The Falcons need to play 28 games of tennis so everyone on the team has a turn. 5 1/9/07 9:57:21 PM DIGITAL FINAL PROOF The camp has 7 tennis courts, so the Falcons need to play 4 rounds of tennis to play 28 games in all. “I know what to do,” says James, and he writes this on the white board: 28 ÷ 7 = 4 “We have 28 games of tennis to play, and we have seven courts. To find out how many groups of games are needed, I divided 28 by 7. We need four groups of games.” They put teams of two into game groups. “This schedule looks great,” Bobby says. “I will use this to make schedules for the other activities. Do you want to help me again?” “Yes!” say James and Rebecca. 6 ca35xs_lay_070109af_ll.indd 6 1/9/07 9:57:26 PM DIGITAL FINAL PROOF Chapter 2: Remaining Players William and Braden are in the Eagles group. The two campers help their leader make a game schedule. They divide the Eagles into volleyball teams. There are six players on a team, and there are 112 Eagles. William says to divide 112 by 6. The quotient will tell them how many teams to make. Braden writes: 112 ÷ 6 = 18 r4 “We need to make 18 teams,” says Braden. “There is a remainder of four,” says William. “That is not enough to make another team.” They decide to add an extra player to four of the teams. The team members will take turns playing. 7 ca35xs_lay_070109af_ll.indd 7 1/9/07 9:57:26 PM DIGITAL FINAL PROOF The Hawks play soccer first. They plan how to divide into teams. Brianna and Isabella are on the Hawks, and they help their leader, Taylor, divide the Hawks into soccer teams. There are 112 Hawks, and each team is allowed to put up to seven players on the field at one time. “How many teams will we have if there are seven players on every team?” asks Isabella. She divides 112 by 7. 112 ÷ 7 = 16 “The quotient is 16. There will be 16 teams of seven players each,” she says. 8 ca35xs_lay_070109af_ll.indd 8 1/9/07 9:57:29 PM