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1、Chemistryisanaturalsciencebasedonexperiment,theteachingpracticeformanyyearsproves:chemistryexperimentisnotonlytomakestudentsobtainchemicalknowledge,animportantwaytounderstandthechemicallawandformingchemicalconceptsandimprovevariousabilities,butalsocultivatetheprocessofstudents'innovationspirita
2、ndinnovationability,otherdisciplinescannotbereplacedthe.Therefore,wemustbaseourselvesontheexperimentofchemistryandbuildupthe，，building，ztocultivatestudents，creativeability〃・First,thepracticeofexploratoryexperimentalteachingmodelTheexploringexperimentreferstothebasicchemistryexperiment,toacquire
3、knowledgethroughscientificanalysisandcomprehensivethinkingprocess,thisprocessrequiresstudentstothinkanddiscussmoreofthestudentsinanactiveexplorationofknowledge,isverybeneficialtothecultivationofstudents'innovationability.Forexample,intheprincipleoflearningtheoriginalbattery,thefirstdemonstratio
4、nof"tomatoprimarybattery(madeofcopper,zinc,lead,musiccardandtomatoes)interestingexperiments,questioningwhythissimplestructurecanmakethemusicsoundcard?Stimulatestudentstoexplorethedesireatthesametime,encouragestudentstodiscussandquestion:musiccardsmusthaveacurrentthroughthevoice,thecurrentcomefr
5、om?Ifyouuseeggplantorcucumberinsteadoftomatoes,OK?Isitbettertoreplacetomatowithdiluteacidinstead?Whatistheprinciple?Guidestudentswithdoubts,hands-ondesignexperimentstoexplore:copper,zinctabletswereinserteddilutesulfuricacid,respectively,whatphenomenon?Whatisthephenomenonofconnectingcopperwiresa
6、ndzincsheetswithdilutesulphuricacidintowires?Doesthequalityofcoppersheetandzincsheetchange?What'sthechangeinthe[H+]inthesolution?WheredoesH+getelectronsfromcopper?Howdoyouprovethatacurrentispassedthroughawire?Basedontheexperimentonthestudents,teachersusemultimediacoursewarevisuallysimulatemicro
7、movementofionsandelectrontransfer,todiscusstheessenee,summarizetheprinciple,summeduptheconstructionconditions,twoprimarycellreactionandenergyconversionetc.・Finally,thetransferofknowledgeexpansion:letthestudentsdiscussthecopperzinc
