用连除解决实际问题教学设计

清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworksafetysupervisionintheexecutionisnotstrong,intheimplementationofthedecisiontodeploythediscount,makechoices,engageinwork,theimplementationoftheagreement,uncomfortableisnotperformed,openordisguisedtoresist,thelackofsubjectconsciousnessofthepartyorganization,thelackofresistinsocietyallkindsofbadhabitsandunwholesometendenciesofcourageGasandcourage.Suchastheliabilityinsuranceofsafeproductionwork,individualleadersthathavesomeonearrested,andnofunding,notintheglobalchessperspectivetothecountrysidetocarryoutdailyinspection,foundnoneofmybusinessacceptanceoftheresumptionofproductioninanarmchair,withapen,indifferent.Correctivemeasures:(LEDLeadership:LuoMingjun,rectificationtime:beforeSeptember25th,insistforalongtime)1,tostrengthenthesenseofresponsibility,worktosolvethelackofdecentoccupationexplainaway,conductproblems.Toestablishtheoverallconcept,eliminatedepartmentalism.Strictassessmentandaccountability,tosolvethespiritualslack,nianqingpazhong,statusquo,Toestablishandperfectthemuddlealongandotherissues.Bureaustaffconductworkregulations,standardizethebehaviorofpersonnel.2,strengthentheresponsibilitysystem.Oneisthein-depthstudyandimplementtheHunanprovincialPartyandgovernmentleadingcadresInterimProvisionsontheworksafetyofapairof(HunanOfficeissued2013No.用连除解决实际问题教材分析：本课教学内容是苏教版小学《数学》三年级下册第11—12页“用连除解决实际问题”，本课是在学生掌握了三位数除以一位数的笔算的基础上进行教学的。通过教学，使学生掌握用连除的方法解决实际问题，理解同一个问题可以用两种方法来解决。【教学目的】：1、在知识与技能方面使学生理解用连除解决的实际问题的基本结构和数量关系，能正确解决这类问题。2、在解决问题的过程中体验解决问题方法的多样化，进一步培养分析推理能力，在自我探究、小组合作等过程中，理解数学与生活的密切联系。3、在情感态度与价值观的培养中激发学生提高学习兴趣，增强学习信心，感受成功的喜悦。【重点难点】：重点：用连除或先乘后除的方法解决连除的实际问题。难点：弄清每一步求的是什么，会选择正确合理的方法解决问题。【教学准备】：多媒体课件【教学过程】：一、复习旧知，引入新课1、根据条件提问并列式解答：有224本书，平均放在两个书架上，（）？师：利用这两个信息你能提出什么问题？生：每个书架上有多少本书？师：怎么列式呢？2、有两个书架，每个书架有3层，每层放了28本书，（）？师：这里给我们提供了几条信息？你能把这些信息读一读吗？师：利用这三条信息你能提出一个两步计算的问题吗？生：一共有多少本书？师：在你们的练习本上列式计算看看。出示两种不同的方法：（1）2×3=6（本）（2）28×3=84（本）6×28=168（本）84×2=168（本）答：一共有168本书。答：一共有168本书。师：你能说一说每一步求出的是什么？小结：同学们能用我们所学的数学知识解决生活中的实际问题，下面，老师带大家走进学校图书馆看看那里有什么数学问题等待我们去解决。★设计意图：用除法解决的一步计算的实际问题和用连乘解决实际问题是学生学习本课内容的基础知识，两道有针对性的复习设计，对本课新知的学习能起到迁移和渗透的作用。二、自主探索，学习新课师：同学们，你们都爱看书吗？学校图书室买来许多新书，图书管理员要将这些书放在两个书架上，怎么放才好，你们来帮帮他好吗？1、观察分析：清水混凝土的配合比设计中，要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析，确定主要控制因素，并从经济性和使用要求综合考虑，优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoensurethatgovernmentdecreesandbasedontheactualcreativework,givingfullplaytosubjectiveinitiative,putanendtoimplementtheconferencemeeting,todocumenttheimplementationofdocumentsetc.Improvethescientificanddemocraticdecision-makingmechanism,improveandimplementthedecisiontosolicittheviewsofexperts,thepublichearingsystem.Improvetheimportantdecisionofriskassessmentmechanismandlegalreviewmechanism.3,topromoteteamunity.Upholdandimprovethesystemofannualpartybooktalkhearttoheart,mindandPartymembers,Partymemberstoexchangeeachothernotlessthan2times.Theimplementationofsoundteamdemocraticlifesystem,consolidateandenhancetheparty'smasslineeducationalpracticewillpromotetheachievementofthetopicofdemocraticlife,criticismandself-criticismnormalization,along-term.Adheretothepartyonthebasisoftheprincipleofunity,enhanceinternalcommunication,strengtheninternalsupervision,selfSleepmaintenanceteamcollectiveimageandauthority.(three)toensuretheexecutionisnotstrongordisguisedtoresistgovernmentdecreesissues.IndividualBureauleadershipteammemberslackoflearningpoliticaltheorysystem,notfromtheobjectivereality,notwiththeparty'sinterestsabovealltheprinciplestodealwithpersonalproblems.Inthespecificworks