Classification
Experimentsarethebasisofscientificinquiry.Biologicalexperimentscangenerallybedividedintotwocategories,oneisconfirmativeexperiments,andtheotherisexploratoryExperiments.Somebiologyteachersstillhaveavagueunderstandingofthesetwotypesofexperiments,andtherearedeviationsinteachingdesign.Thisarticleattemptstoanalyzeandclarifythedifferencesbetweenthetwotypesofexperimentsfromdifferentangles,inordertofacilitatebetterinquiryteaching.
Ithasnothingtodowiththebackground,payattentiontotheresultsofverification(facts,concepts,theories),ratherthantheprocessofverification.ConfirmativeexperimentsItconveysthemessagethatitismuchmoreimportanttounderstandadiscoveryandhowtoapplytheresultsofthisdiscoverytoacertainproblemthantodirectlylearnhowtodiscoverit.ConfirmatoryexperimentemphasizesexperimentaloperationandobservationWaitforindividualintellectualskills,emphasizinganyrapidandeconomicalacquisitionofbiologicalknowledge.
Experimentalpurpose
Verificationexperimentistocultivatestudents'experimentaloperationanddataprocessingForotherskills,studentscheckthataknownresultiscorrect,suchasobservingtheplasmawallseparationandrestorationexperimentofplantcells,andverifytheexperimentalprincipleaccordingtotheresultsobtainedbytheexperimentalrequirements(whetherthereisaphenomenonofplasmawallseparationandrestoration).
Exploratoryexperimentsaretoansweraquestionofinterestthroughexperiments,stimulatestudents'curiosity,andcultivatescientificinquirycapabilities,suchasexploringtheseparationandseparationofthemassconcentrationofsucrosesolutionandplantcells.Relationship,predicttheconcentrationofplantcellsapandsoon.
Verifyingexperimentusuallyadoptstheteachingmodeof"telling———verification———application",andstudentsuseexperimentsToverifythebiologicalprinciples,conceptsorpropertiesthathavebeenlearned,this"prescriptiontograspmedicine"modelishighlyimmobilized.