high school chemistry experiment on innovation culture（高中化学实验创新文化）

HIGHSCHOOLCHEMISTRYEXPERIMENTONINNOVATIONCULTURECHEMISTRYISALABORATORYBASEDSCIENCE,YEARSOFTEACHINGPROVEDCHEMISTRYEXPERIMENTSFORCHEMISTRYSTUDENTSISNOTONLYTHEKNOWLEDGE,UNDERSTANDINGOFCHEMICALLAWS,ANDTHEFORMATIONOFCHEMICALCONCEPTS,ANIMPORTANTWAYTOIMPROVECAPABILITIES,ANDTHEPROCESSFORSTUDENTSINNOVATIVESPIRITANDABILITY,ISNOTASUBSTITUTEFOROTHERDISCIPLINES,SOWEMUSTBEBASEDONTHISCHEMISTRYEXPERIMENTBASEDONSTUDENTSABILITYTOINNOVATEANDSTRIVETOBUILDTHEHOUSE,IBELIEVETHATTHEFOLLOWINGASPECTSSHOULDBEIMPLEMENTEDFIRST,CHANGETHEDEMONSTRATIONEXPERIMENTFORSTUDENTSANDTEACHERSANDSTUDENTSTOGETHERTOCOMPLETETHEEXPERIMENTALGROUPPROFESSORYANGCHENONCESAIDCHINESECHILDRENSINTERESTSANDABILITIESINHANDSONAREOBVIOUSLYNOTASGOODASEUROPEANANDAMERICANCHILDREN,MOSTLYWITHOUTHANDSONOPPORTUNITIESINFACT,NOTONLYOURCHILDRENSOTHATOURSTUDENTSINTHEINTERNATIONALOLYMPIADTHEORETICALRESULTSAREALWAYSLIVINGINTHEEDGE,EXPERIMENTALRESULTSTENDTOBELAGGINGBEHINDOTHERCOUNTRIESTHEMAINREASONISHIGHSCHOOLTEXTBOOKSINTHEEXPERIMENTALARRANGEMENTISNOTTOOMUCHALREADY,SOMETEACHERSDONOTCONSCIOUSLYATTEMPTTOTAKEYEARROUND,INSTEADOFUSINGSTUDENTSTOEXPLAINANDDEMONSTRATETHEHANDSONOPERATION,SOMESIMPLYTOREPLACETHESTYLIZEDWRITINGTRAININGTHEEXPERIMENTALGROUPOFSTUDENTSINVIEWOFTHIS,EDUCATORSSHOULDSTRIVETODOTHROUGHHANDSONPRACTICALACTIVITIESTODEVELOPSTUDENTSCREATIVEABILITYINPRACTICESPECIFICALLY,THISEXPERIMENTCANDEMONSTRATETOSTUDENTSSOMEALLSTUDENTGROUPSTODOEXPERIMENTSOREXPERIMENTS,SUCHASETHYLENEANDNATUREOFLABORATORYEXPERIMENTSPREVIOUSLYALWAYSPREPAREDBYTHETEACHERSCONTRACTTOCOMPLETE,STUDENTSDONOTTHINK,WASAPPEALINGINMIND,TEACHERSANDSTUDENTSTOGETHERTOCOMPLETENOWTOENABLESTUDENTSTOPARTICIPATE,THROUGHTHEREACTIONMIXTUREPREPARATIONANDIGNITIONOFETHYLENEGASTODEVELOPAGOODPSYCHOLOGICALQUALITY,STRICTCONTROLOFTEMPERATURE,THEREACTIONSOLUTION,TRAINTHESTUDENTSARIGOROUSSCIENTIFICAPPROACHTEMPERATUREISTOOLOWORTOOHIGHTEMPERATUREMAYCAUSEANYRESULTS,WHATTODOTHESEWILLSTIMULATESTUDENTSTOSERIOUSLYCONSIDERTHEDESIGNAPPROACH,INNOVATIVETHINKINGTODEVELOPSTUDENTSABILITYANDINNOVATIVEABILITYCOLORCHANGEREACTIONSOLUTIONTOACIDICKMNO4SOLUTIONANDETHYLENE,BROMINEFADEDEXPERIMENT,TODEVELOPTHESTUDENTSOBSERVEANDANALYZETHEINNOVATIVEABILITYGROUPINGEXPERIMENTSBETTERTOPROVIDESTUDENTSWITHTHEPARTICIPATIONOFALL,THECHANCEYOURSELFINTHISPROCESS,THEWINNERSREAPJOY,THUSTOSTIMULATETHEIRINTERESTININNOVATIONANDPASSION,LOSERSFROMGAININGEXPERIENCEANDLESSONSLEARNEDTOSTIMULATETHEIRSERIOUSCONSIDERATION,TOBECREATIVE,SOTHATTHETEACHINGPROCESSASSTUDENTSLEARNTOSEEKKNOWLEDGE,FOSTERINNOVATIONANDPRACTICALCAPABILITIESSECOND,CHANGETHEVALIDATIONEXPERIMENTSTOEXPLORETHEEXPERIMENTVALIDATIONEXPERIMENTSHAVEBEENLEARNEDTHROUGHEXPERIMENTSWITHCHEMICALKNOWLEDGETOPROVEITSACCURACY,THESTUDENTSINTHESTATEOFPASSIVEACCEPTANCEOFKNOWLEDGE,ANDTOEXPLOREPRACTICALMEANSOFCHEMICALEXPERIMENTS,BASEDONSCIENTIFICANALYSISANDINTEGRATIONTHROUGHTHETHOUGHTPROCESSTOOBTAINKNOWLEDGEOFATEST,THISPROCESSREQUIRESSTUDENTSTOHAVEMORETHINKINGANDDISCUSSION,STUDENTSEXPLOREKNOWLEDGEINANACTIVESTATE,TOCULTIVATECREATIVITYINOURSTUDENTSISVERYBENEFICIALFOREXAMPLE,INLEARNINGTHENATUREOFCL2FIRSTOFALLDOUBTSANDQUESTIONSCL2CANDISSOLVEINWATERCL2CANREACTWITHWATERITIF,RESULTANTISWHATEXPERIMENTTOEXPLORE1INTWOBOTTLESOFANYCOLORSIMILARTOTHECHLORINEBYADDINGASMALLAMOUNTOFWATERTOTAKEABOTTLEFULLOSCILLATION,WITHANOTHERBOTTLEOFCHLORINETOCOMPARETHEIRCOLOR,THECOLOROFITSSOLUTIONWITHDISTILLEDWATERCOMPAREDTOWHATCONCLUSION2OFCHLORINEWEREADDEDAGNO3SOLUTIONANDDILUTEHNO3,NAHO2SOLUTION,BLUELITMUSTESTSOLUTION,RESPECTIVELY,TOSEEWHATPHENOMENONCONCLUSIONHOW3PUREDRYCL2THROUGHDRYANDWETBLUELITMUSPAPERANDOBSERVEWHATPHENOMENONSAYWHATSCIENTIFICANALYSIS1BOTTLEOFREAGENTWATERGASLIGHTERCOLOR,THECOLORTURNSYELLOWGREENSOLUTION2WHITEPRECIPITATE,BUBBLES,FADEAFTERTHEFIRSTRED,3DRYTESTSTRIPDOESNOTCHANGECOLOR,MOISTSTRIPSAFTERTHEFIRSTREDFADECONCLUSIONCHLORINECANDISSOLVEINWATER,BUTSOLUBILITYISNOT,PARTOFCL2DISSOLVEDINWATERREACTINGWITHWATER,C1,H,HCIODRYC12DONOTHAVETHEBLEACHING,THEBLEACHINGEFFECTISHCIOCHANGEVALIDATIONEXPERIMENTSTOEXPLORETHEEXPERIMENT,ACTIVEINTHESTUDENTSTHINKING,TOSTIMULATEENTHUSIASMFORTHEINITIATIVETOACTIVELYEXPLOREANDENHANCESELFCONFIDENCE,THEACTIVATIONOFINNOVATIONTHIRD,CARRYOUTEXPERIMENTSDESIGNEDTOSTIMULATEINNOVATIONPRACTICEISTHECRADLEOFINNOVATION,AHANDSONEXPERIMENTALDESIGNANDTRAINSTUDENTSINALLASPECTSOFMENTALANDPHYSICALABILITYOFTHEPROCESS,THESTUDENTSTHEMSELVESTOTHINKTHROUGHDESIGNEXPERIMENTS,STUDENTSDEVELOPHANDSONMENTALANDPHYSICALABILITYTOSOLVEPROBLEMS,BUTALSOTRAINTHESTUDENTSINDIVERGENTTHINKINGANDINNOVATIONTHEABILITYTODESIGN,ORGANIZETHESTUDENTSTOTEACHERSINTHEEXPERIMENTALDESIGN,ITCANGUIDETHESTUDENTSTOREAD,FINDSOMETIPSEXPERIMENTS,EXPERIMENTALDRUGSANDEQUIPMENTALTERNATIVES,EXPERIMENTALDEVICESANDIMPROVEMENTOFRELEVANTINFORMATION,TOBROADENTHEIRHORIZONS,INSPIRINGSTUDENTSTOCREATIVELYTHINKING,WESHOULDALSOALWAYSSOMECANINSPIRESTUDENTSTOCREATEDESIREANDCREATEINTERESTINTHEPROBLEM,TRYTOGIVESTUDENTSSOMEHANDSONOPPORTUNITIESFORSTUDENTSINTHEHANDSANDBRAINACTIVITIESINTOTHEISSUEOFCREATINGASPARKAFTERTHESTUDENTSHANDSONBRAIN,INNOVATIONDESIGN,BOTHTOSTIMULATETHESTUDENTSSENSEOFINNOVATION,MOBILIZETHEENTHUSIASMOFSTUDENTS,BUTALSOTRAINANDEXERCISEINNOVATIVETHINKINGABILITYOFSTUDENTS,HAVEAMULTIPLIEREFFECTOFTEACHINGFOURTHLY,TOIMPROVEASPEECHRECORDEDCLASSROOMEXPERIMENT,STUDENTSABILITYTOINNOVATELINKSTOFREEDOWNLOADHTTP/ENGHI138COMFORSOMECLASSROOMDEMONSTRATIONEXPERIMENT,EXPERIENCEISNOTOBVIOUS,COMPLICATEDTOOPERATE,EASYTODEALWITHPOLLUTANTS,THEFIRSTJOINTANALYSISOFEXPERIMENTSLEDBYSTUDENTSINADEQUACIES,ANDTHENENCOURAGESTUDENTSTOIMPROVETHEEXPERIMENTALDESIGNANDREASONABLESOLUTION,SOTHATNOTONLYSTUDENTSCREATIVETHINKINGABILITY,BUTALSOENCOURAGESTUDENTSTODARETOINNOVATEFOREXAMPLE,INSTUDYINGTHEREACTIONOFCUANDDILUTEHNO3,THEPRESSMATERIALSASSHOWNINTHISDEMONSTRATIONEXPERIMENT,WHILEALLOWINGSTUDENTSTOOBSERVEANDANALYZEWHATTHEDRAWBACKSOFTHISEXPERIMENTALPROGRAM,THEFINALSUMMARYOFTEACHERSANDSTUDENTSOFTENHAVETHEFOLLOWINGDEFICIENCIES1NOPHENOMENONISNOTOBVIOUS2REACTIONSISNOTEASYTOSTOP,3NITROGENOXIDEPOLLUTIONINVIEWOFTHIS,TOENCOURAGESTUDENTSTOTHINKABOUTHOWTOIMPROVETHISEXPERIMENTTOELIMINATETHESESHORTCOMINGSITATTHISPOINT,THESTUDENTSARETHINKING,ACTIVE,ACTIVEANDINNOVATIVEDESIGNOFTHETHERESULTSVARIED,SOMEOFWHICHONLYTAKEINTOACCOUNTTHEONEHAN