美国加州教材 California Mathematics G2 2008.pdf

interactivestudenteditionIICopyright 2007 by The McGraw-Hill Companies,Inc.All rights reserved.Except as permitted under the United States Copyright Act,no part of this publication may be reproduced or distributed in any form or by any means,or stored in a database or retrieval system,without prior permission of the publisher.Send all inquiries to:Glencoe/McGraw-Hill8787 Orion PlaceColumbus,OH 43240-4027ISBN-13:978-0-07-874043-5ISBN-10:0-07-874043-6Printed in the United States of America.1 2 3 4 5 6 7 8 9 10 055/027 15 14 13 12 11 10 09 08 07 06About the CoverLocated in the Piney Woods region of Texas,Tyler is known as the Rose Capital of America.It is also home to a popular 85-foot,6-lane,wooden slot car track.The track is designed for 1:32 and 1:24 scale cars.You will learn more about ratios in Chapter 6.About the GraphicsColored Truchet bands.Created with Mathematica.A random 2D Truchet image is constructed.The connected arcs of the image are identified and randomly colored in a band-like manner.For more information,and for programs to construct such graphics,see: Macmillan/McGraw-Hill,a division of The McGraw-Hill Companies,Inc.105705-Gr2-FM.indd II105705-Gr2-FM.indd II12/1/06 12:59:49 AM12/1/06 12:59:49 AMIIIStart SmartChapter 1Number Sense and PatternsChapter 2 Addition StrategiesChapter 3 Subtraction StrategiesChapter 4Data and GraphsChapter 5 Two-Digit AdditionChapter 6 Two-Digit SubtractionChapter 7 MoneyChapter 8Multiplication and Division ConceptsChapter 9 FractionsChapter 10Numbers to 1,000Chapter 11 GeometryChapter 12Measurement and TimeChapter 13 Three-Digit AdditionChapter 14 Three-Digit Subtraction Standards ReviewLooking Ahead to Grade 3Copyright Macmillan/McGraw-Hill,a division of The McGraw-Hill Companies,Inc.105705-Gr2-FM.indd III105705-Gr2-FM.indd III12/1/06 12:59:52 AM12/1/06 12:59:52 AMAuthorsIVMeet the Authors at Rhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasCopyright Macmillan/McGraw-Hill,a division of The McGraw-Hill Companies,Inc.105705-Gr2-FM.indd IV105705-Gr2-FM.indd IV12/1/06 12:59:55 AM12/1/06 12:59:55 AMVContributing AuthorDinah Zike Educational Consultant,Dinah-Might Activities,Inc.San Antonio,Texas Rhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasRhonda J.Molix-Bailey Mathematics Consultant Mathematics by Design DeSoto,TexasCopyright Macmillan/McGraw-Hill,a division of The McGraw-Hill Companies,Inc.105705-Gr2-FM.indd V105705-Gr2-FM.indd V12/1/06 12:59:57 AM12/1/06 12:59:57 AMConsultantsVIEach Teacher Reviewer reviewed at least two chapters of the Student Edition,giving feedback and suggestions for improving the effectiveness of the mathematics instruction.Differentiated InstructionNancy Frey,Ph.D.Associate Professor of LiteracySan Diego State UniversitySan Diego,CaliforniaEnglish Language LearnersMary Avalos,Ph.D.Assistant Chair,Teaching and LearningAssistant Research ProfessorUniversity of Miami,School of EducationCoral Gables,FloridaJana Echevarria,Ph.D.Professor,College of EducationCalifornia State University,Long BeachLong Beach,CaliforniaJosefina V.Tinajero,Ph.D.Dean,College of EducatifonThe University of Texas at El PasoEl Paso,TexasGifted and TalentedEd ZaccaroGraphing CalculatorRuth M.CaseyMathematics TeacherDepartment ChairAnderson County High SchoolLawrenceburg,KentuckyJerry CumminsPast PresidentNational Council of Supervisors of Mathematics(NCSMWestern Springs,IllinoisLearning DisabilitiesKate Garnett,Ph.D.Chairperson,CoordinatorLearning DisabilitiesSchool of EducationDepartment of Special EducationHunter College,CUNYNew York,New YorkMathematical FluencyJason MutfordMathematics InstructorCoxsackie-Athens Central School DistrictCoxsackie,New Yorkre-APDixie RossHouston,TexasReading and VocabularyDouglas Fisher,Ph.D.Director of Professional Development and ProfessorCity Heights Educational CollaborativeSan Diego State UniversitySan Diego,CaliforniaLynn T.HavensDirector of Project CRISSKalispell Sc