美国加州教材 Core Plus Math 2.pdf

interactivestudenteditionChristian R.Hirsch James T.Fey Eric W.HartHarold L.Schoen Ann E.WatkinswithBeth E.Ritsema Rebecca K.Walker Sabrina KellerRobin Marcus Arthur F.Coxford Gail Burrill2nd EditionCopyright 2008 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.This material is based upon work supported,in part,by the National Science Foundation under grant no.ESI 0137718.Opinions expressed are those of the authors and not necessarily those of the Foundation.Send all inquiries to:Glencoe/McGraw-Hill8787 Orion PlaceColumbus,OH 43240-4027ISBN:978-0-07-877258-0(Student Edition)Core-Plus MathematicsMHID:0-07-877258-3(Student Edition)Contemporary Mathematics in Context Course 2 Student EditionPrinted in the United States of America.2 3 4 5 6 7 8 9 10 079/043 16 15 14 13 12 11 10 09 08 iiiCore-Plus Mathematics 2Development TeamSenior Curriculum DevelopersChristian R.Hirsch(Director)Western Michigan UniversityJames T.FeyUniversity of MarylandEric W.HartMaharishi University of ManagementHarold L.SchoenUniversity of IowaAnn E.WatkinsCalifornia State University,NorthridgeContributing Curriculum DevelopersBeth E.RitsemaWestern Michigan UniversityRebecca K.WalkerGrand Valley State UniversitySabrina KellerMichigan State UniversityRobin MarcusUniversity of MarylandArthur F.Coxford(deceased)University of MichiganGail BurrillMichigan State University(First edition only)Principal EvaluatorSteven W.ZiebarthWestern Michigan UniversityAdvisory BoardDiane BriarsPittsburgh Public SchoolsJeremy KilpatrickUniversity of GeorgiaRobert E.MegginsonUniversity of MichiganKenneth RuthvenUniversity of CambridgeDavid A.SmithDuke UniversityMathematical ConsultantsDeborah Hughes-HallettUniversity of Arizona/Harvard UniversityStephen B.MaurerSwarthmore CollegeWilliam McCallumUniversity of ArizonaDoris SchattschneiderMoravian CollegeRichard ScheafferUniversity of FloridaEvaluation ConsultantNorman L.WebbUniversity of Wisconsin-MadisonTechnical CoordinatorJames LaserWestern Michigan UniversityCollaborating TeachersMary Jo MessengerHoward County Public Schools,MarylandJacqueline StewartOkemos,MichiganGraduate AssistantsAllison BrckaLorenzChristopher HlasUniversity of IowaMichael ConklinUniversity of MarylandDana GrosserAnna KruizengaNicole LanieDiane MooreWestern Michigan UniversityUndergraduate AssistantsCassie DurginUniversity of MarylandRachael KaluznyJessica TuckerAshley WiersmaWestern Michigan University iv Core-Plus Mathematics 2Field-Test SitesHickman High SchoolColumbia,MissouriMelissa HundleyStephanie KrawczykCheryl LightnerAmy McCannTiffany McCrackenRyan PingreyMichael WestcottHolland Christian High SchoolHolland,MichiganTim LaverellBrian LemmenBetsi RoelofsJohn TimmerMike VerkaikJefferson Junior High SchoolColumbia,MissouriLori KilfoilMalcolm Price Lab SchoolCedar Falls,IowaMegan BalongDennis KettnerJames MaltasOakland Junior High SchoolColumbia,MissouriDana SleethRiverside University High SchoolMilwaukee,WisconsinCheryl BrennerDave CusmaAlice LanphierEla KiblawiUlices SepulvedaRock Bridge High SchoolColumbia,MissouriNancy HansonEmily HawnLisa HoltBetsy LaunderLinda ShumateSauk Prairie High SchoolPrairie du Sac,WisconsinJoel AmidonShane BeenKent JensenJoan QuenanScott SchuttMary WalzWashington High SchoolMilwaukee,WisconsinAnthony AmorosoWest Junior High SchoolColumbia,MissouriKatie BihrCore-Plus Mathematics 2 builds on the strengths of the 1st edition which was shaped by multi-year field tests in 36 high schools in Alaska,California,Colorado,Georgia,Idaho,Iowa,Kentucky,Michigan,Ohio,South Carolina,and Texas.Each revised text is the product of a three-year cycle of research and development,pilot testing and refinement,and field testing and further refinement.Special thanks are extended to the following teachers and their students who participated in the testing and evaluation of 2nd Edition Course 2.1UNITUNIT2UNIT3 vFUNCTIONS,EQUATIONS,AND SYSTEMSFunctions,Equations,and Systems reviews and extends student ability to recognize,describe,and use functional relationships among quantitative variables,with special emphasis on relationships that involve two or more independent variables.Topics include direct and inverse variation and joint variation;power functions;linear equations in standard form;and systems of two linear equations with two variables,including solution by graphing,substitution,and elimination.Lesson 1 Direct and Inverse VariationLesson 2 Multivariable FunctionsLesson 3 Systems of Linear EquationsLesson 4 Looking BackMATRIX METHODSMatrix Methods develops student understanding of matrices and ability to use matrices to represent and solve problems in a variety of real-world and mathematical settings.Topics include constructing and interpreting matrices,row and column sums,matrix addition,sca