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1、不等式的基本性质教学设计（Teachingdesignofbasicpropertiesofinequality）TeachingdesignofthebasicpropertiesofinequalityFirst,teachingobjectives:(1)knowledgeandskills1.masterthreebasicpropertiesofinequality.2.usinginequality'sbasicpropertytotransforminequality.(two)mathematicalthinking1.throughthenatureofassociativ
2、eequation,thenatureofinequalityisexplored,andthemathematicalideaof"analogy"isinitiallyunderstood.2.throughtheobservation,conjecture,verification,inductionandothermathematicalactivities,fromspecialtogeneral,fromconcretetoabstractcognitiveprocess,feeltherationalmathematicsthinkingprocess,thinkingabil
3、ityandlanguageexpression.(three)solvetheproblem1.studentsexperienceobservation,inquiry,induction,summaryandotherprocesses,gettheexperienceandmethodstosolvemathematicalproblems,canusethebasicnatureofinequalitytosolvesimpleproblems.2.,byusingthebasicpropertiesofinequality,theinequalityisdeformed,form
4、ingsomebasicstrategiestosolvetheproblem,anddevelopstudents'mathematicalconsciousness.(four)emotionalattitudeByexploringthebasicnatureoftheactivitiesofinequality,tocultivatestudents'awarenessofcooperationandcommunicationandboldspeculation,willingtoexploregoodthinkingquality.Cultivatestudents'curiosi
5、tyandthirstforknowledge,gainsuccessfulexperiencefrommathematicslearningactivities,andestablishself-confidence.Two,teachingkeypoints:Threebasicpropertiesofinequalityareexploredandtheycanbecorrectlyusedtodeforminequalities.Three,teachingdifficulties:Explorationandapplicationofthebasicpropertiesofineq
6、uality3.Four,teachingmethods:independentinquiry-cooperationandexchangeFive.Teachingmedia:projectorSix.Teachingprocess:[activity1]Question1.:whatisaninequality?Thestudentsrespondedpositively.Question2.determinewhetherthefollowingcategoriesaretenableornotAndexplainwhy.(1)ifX3=12,x=15()(2)if3x=12,then
7、x=4()(3)ifX3>12(x>15)(4)if3x>12,x>4()Theteachershowsproblemswithprojection,studentsthink,answer,(1),(2)theyarousethebasicnatureoftheoldknowledge,equalityofmemory,(3),(4):guidethestudentstospeakouttheirideas
