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《圆柱的表面积教时（the surface area of the cylinder is hours）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、圆柱的表面积2教时（Thesurfaceareaofthecylinderis2hours）"Cylindersurfacearea1"classhourteachingplanPrincipalandreceiver:ZhangJu'steachingdateis2012ContentofcoursesTextbooktwenty-first~22pages,example2,example3and"practiceapractice",practicesix,first,secondquestions.Howmanyhours?TwolessontypeP
2、resentationWhat'sthefirstclass?OneThree-dimensionaltarget1.understandthemeaningandcalculationmethodofcylindersideareaandsurfaceareainoperationandexploration,andcalculatethelateralareaandsurfaceareaofcylindercorrectly.2.,makestudentsfurtheraccumulateintheactivitiesofexploringthree-di
3、mensionalgraphicscomputingexperience,andenhancetheconceptofspace,thedevelopmentofmathematicalthinking.3.,studentscanlearnthevalueofthethree-dimensionalgraphicsintheprocessofsolvingthepracticalproblemsbycalculatingtheareaandthesurfaceareaofthecylinder,soastoincreasetheinterestinlearn
4、ingmathematicsandtolearntheconfidenceofmathematics.TeachingemphasisDifficultpointKeypoints:onthebasisofintuitiveoperation,understandthemeaningofcylindersideareaandsurfacearea,andunderstandanddeducethecalculationmethodofcylindersideareaandsurfacearea.Difficulty:accordingtodifferentpr
5、acticalproblems,flexibleuseofsideareaandsurfaceareacalculationmethod.TeachingresourcesStudentexperience:beforethestudentshavealreadyknownthebottomandsideofthecylinder,theyhaveapreliminaryunderstandingofthesurfaceofthecylinderandhavemadepreparationsforit.Inaddition,studentshavetheabi
6、lityofpreliminaryoperation,observation,comparison,reasoningandsoon,allofwhichhavepreparedthestrategyandmethodforthesmoothprogressofthisclass.Teachingpreparation:acylindricalcanwithanexpandedlogopaperoutside;multimedia.PreviewdesignOutlineWhatarethefeaturesofthe1.column?2.findacanofc
7、ylindricalshapes,cutthelabelpaperalongtheseamandunfoldittoseewhatshapeitis.3.thinkaboutthelengthandwidthoftherectangleaftertheexpansion.What'stherelationbetweenthelengthandwidthoftherectangleandwhatisinthecolumn?Two,learningexperience.ProgramdesignNavigationstrategyAdjustmentandrefl
8、ectionFirst,exchang
