Math Concept Reader
A Y V N Howard Math Concept Reader The Thirst Quencher ca44os_lay_070109af_ll.indd 1 1/9/07 1:32:41 AM DIGITAL FINAL PROOF Expedition: Antarctica by Aenea Mickelsen ca62xs_lay_061207ad_am.indd 4 1/9/07 9:09:15 AM DIGITAL FINAL PROOF A Y V N Howard 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. HARCOUR T 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: 978-0-15-360190-3 ISBN 10: 0-15-360190-6 1 2 3 4 5 6 7 8 9 10 179 16 15 14 13 12 11 10 09 08 07 by Sarah Mastrianni Photographs by Gregg Anderson Math Concept Reader The Thirst Quencher ca44os_lay_070109af_ll.indd 3 1/9/07 1:32:45 AM DIGITAL FINAL PROOF Howard the Vending Machine Man C H A P T E R 1 : Howard works for All Your Vending Needs (AYVN) Vending Company. The company has been in business for more than 15 years and provides bottled water and juice to their customers. Their customers include hundreds of companies and schools. The company prides itself on quality, price, and service. Howard is in charge of a group of drivers who fill the vending machines for customers. Howard believes that meeting the needs of his customers is very important. If his drivers keep their customers happy, that means AYVN will get more business. Howard not only manages a group of drivers, but he drives for the company, too! Filling the vending machines lets Howard visit and speak with his customers on a regular basis. 2 ca44os_lay_070109af_ll.indd 2 1/9/07 1:32:48 AM DIGITAL FINAL PROOF Howard the Vending Machine Man Each day, the drivers have stops to make on a set route to service and fill the vending machines. Howard plans the stops for all the drivers. He must be sure that the other drivers know where they are going before he leaves for his own route. He also wants to be sure they know what they are delivering. He reviews customer orders for refills. Today there are 29 stops on the schedule. The drivers will stock vending machines with more drinks and collect payments from each customer. There are seven drivers today, counting Howard. Howard grabs a pen and a sheet of paper and gets ready to plan the delivery route for each driver. 3 Howard and the other drivers will stock vending machines with drinks. ca44os_lay_070109af_ll.indd 3 1/9/07 1:32:55 AM DIGITAL FINAL PROOF Howard wants to make sure each of his drivers has an equal amount of work, so he divides the 29 stops by the seven drivers. He figures out that each driver, including himself, must make four stops. Each stop typically includes several vending machines that need to be refilled with drinks. Howard thinks. There are 29 stops to divide among seven drivers, but that leaves one extra stop, which Howard decides to take himself. 29 ÷ 7 = 4 r1; 4 routes for each driver, with one extra stop for Howard. Howard hands the drivers a list for each machine on their stops. The drivers review their lists and load their trucks. 4 Howard hands the driver a list for his route. JOHNSTON HIGH SCHOOL ca44os_lay_070109af_ll.indd 4 1/9/07 1:33:01 AM DIGITAL FINAL PROOF Howard reviews orders for the customers on his stops. He will fill vending machines with juice and water. It’s important that he make sure to bring enough drinks to fill each order. Today, the vending machines he will fill are located at five local schools. Howard plans his driving route carefully. He does not want to lose time driving around in his truck looking for the schools, so he maps out his stops. This helps save gas, too. Now Howard is ready to load his truck and will soon be on his way. Howard checks in with his drivers one more time. When he is sure that everyone is prepared for their routes, he sets off for Clever Elementary School. 5 CLEVER ELEMENTARY SCHOOL FREDERICK ELEMENTAR Y SCHOOL HOPE MIDDLE SCHOOL CAPET OWN ELEMENTARY SCHOOL JOHNST ON HIGH SCHOOL Stop 1 Rte. 75 Stop 2 St op 3 St op 4 St op 5 ca44os_lay_070109af_ll.indd 5 1/9/07 1:33:01 AM DIGITAL FINAL PROOF Juice for Clever Students C H A P T E R 2 : Clever Elementary School just purchased a new juice machine for the cafeteria. A driver from Howard’s company delivered the vending machine yesterday and now it needs to be filled with drinks. Howard has worked for AYVN for more than ten years so he knows that different models of vending machines hold different numbers of drinks. The number of drinks depends on the layers in the machine. He looks at the list to fi nd out which model the driver delivered to the school yesterday. The machine that Clever Elementary School purchased holds 480 bottles. There are 8 layers in the machine and each layer holds 60 bottles. 480 ÷ 8 = 60; 60 bottles for each layer in the machine. 6 ca44os_lay_070109af_ll.indd 6 1/9/07 1:33:03 AM DIGITAL FINAL PROOF Howard wants to bring enough juice from his truck into the school so that he will only have to make one trip. He knows he needs 480 bottles of juice to fill the machine. The bottles of juice are packaged in cases and each case contains 24 bottles of juice. Howard needs to figure out how many cases of 24 bottles equals 480 bottles. That way, Howard will bring just the right number of cases into the school to fill the machine. Howard uses mental math to figure out that 20 cases of 24 bottles are 480 bottles in all. 20 x 24 = 480; 480 bottles in 20 cases. He loads his dolly with 20 cases of juice. 7 Howard brings cases of drinks to fill the machine. ca44os_lay_070109af_ll.indd 7 1/9/07 1:33:10 AM DIGITAL FINAL PROOF Once Howard finishes filling the machine, he heads to the main office and gives the office worker the bill. The office worker thanks Howard for coming to the school. He says that the students are excited about the juice machine. The timing of Howard’s delivery could not be better because many of the students are participating in a two-mile walk after school. On a warm day like today, the students will surely head to the juice machine after the walk! Howard says he is glad the timing of the delivery is so good. He will call in a few days and promises to be back when the machine needs more juice. 8 The office worker thanks Howard for filling the vending machine. ca44os_lay_070109af_ll.indd 8 1/9/07 1:33:14 AM DIGITAL FINAL PROOF [...]... One of them asks him if there are any cold bottles of water left in the machine Howard looks at the students They are dressed in sports jerseys He guesses from their uniforms that they have been playing volleyball in the gymnasium They look as if they have been playing hard and they sound like they are out of breath Howard guesses they are pretty thirsty! He asks them how many students are in the gymnasium... PROOF Howard, the Thirst Quencher, continues his deliveries Two students stop Howard before he leaves the building They tell Howard that they saw him in the cafeteria earlier and thank him for filling up the new juice machine They tell Howard that they are looking forward to having cold drinks each day They appreciate the hard work Howard does for the students The students tell Howard they have a nickname... to the gym They each pick up their four bottles They notice there is one bottle of water left on the floor 13 ca44os_lay_070109af_ll.indd 13 1/9/07 1:33:46 AM DIGITAL FINAL PROOF The players look confused There are only 12 team members Who is the extra bottle of water for? Howard tells them he bought the extra bottle of water because he thinks there is a coach who might be thirsty, too The girls nod their... bottles of water remaining from the last time it was filled He takes the water out for the thirsty students Howard likes to keep his customers happy He collects the money for 12 bottles, but pays for the extra bottle of water himself He makes a note of the sale and will be sure the school is given the money The students figure out they must each carry four bottles back to the gym 12 ÷ 3 = 4; 4 bottles... girls nod their heads in agreement They do the division again 13 ÷ 3 = 4 r1; 4 bottles for each student to carry back to the gym and 1 extra bottle for the coach Now they understand why there is an extra bottle of water One student reaches down for it She has to be careful so she doesn’t drop her bottles of water The girls thank Howard and then head back to the gym with the water 14 ca44os_lay_070109af_ll.indd... bottles plus one more for the coach 1/9/07 1:33:50 AM DIGITAL FINAL PROOF Howard uses math at work every day As the students turn, they see their coach, who smiles and waves at Howard The teammates agree that it was nice of Howard to buy the extra bottle for the coach Howard smiles on his way back to the truck He enjoys his job It requires so many different skills He almost always uses math in his head or... students are in the gymnasium They tell Howard that there are 12 volleyball players on the team and they are all practicing for their upcoming game A volleyball player takes a break to get water from the vending machine 12 ca44os_lay_070109af_ll.indd 12 1/9/07 1:33:38 AM DIGITAL FINAL PROOF There are 13 water bottles left in the machine before Howard fills it Howard looks at the machine and sees 13 bottles... having cold drinks each day They appreciate the hard work Howard does for the students The students tell Howard they have a nickname for him They call him the Thirst Quencher! ” Howard laughs at the name He never thought of himself as the man who satisfied students’ thirst, but now he does Howard smiles as he waves goodbye He likes to know that his job makes people happy He cannot wait to tell his crew... arrives at the school, Howard looks at his notes The three vending machines at Frederick Elementary School hold a total of 1,296 bottles of water and Howard knows they each hold the same number of bottles He will take the maximum number of bottles that he might need in case all three machines are empty This time, he will have to make three trips On his first trip, he will fill the vending machine in the gymnasium... second trip, he will fill the vending machine in the teachers’ workroom On Howard’s third trip, he will fill the machine in the cafeteria 10 ca44os_lay_070109af_ll.indd 10 1/9/07 1:33:27 AM GYMNASIUM 432 CAFETERIA 432 TEACHERS’ WORKROOM 432 1,296 bottles ÷ 3 machines = 432 bottles of water There are 432 bottles per machine DIGITAL FINAL PROOF Howard begins filling the machine in the gymnasium lobby Just . Howard does for the students. The students tell Howard they have a nickname for him. They call him the Thirst Quencher! ” Howard laughs at the name. He never thought of himself as the man who. in the gymnasium. They look as if they have been playing hard and they sound like they are out of breath. Howard guesses they are pretty thirsty! He asks them how many students are in the. student to carry back to the gym. They each pick up their four bottles. They notice there is one bottle of water left on the floor. 13 There are 13 water bottles left in the machine before Howard