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1、稍复杂的分数乘法应用题(2)（Slightlymorecomplexfractionalmultiplicationproblems(2)）Aclassteachingplanfor"slightlycomplicatedfractionalmultiplicationproblem(2)"Teachingperiod:November30,2012ContentofcoursesSixteenexamplesoftextbookeighty-fourthpages,3exercisesand5-9exercises.Howmanyhou
2、rs?TenlessontypeNewgrantThefirstclasshourFourteachingtarget1.throughlearning,sothatstudentsunderstandandmastertheuseoffractionalmultiplicationandaddandsubtracttosolvesomeofthemorecomplexpracticalproblemsofthinkingmethods,cansolvethesimilarproblems.2.enablestudentstofurthe
3、raccumulatestrategiestosolveproblems,cultivatestudents'habitsofusingstrategiestosolveproblems,andenhancestudents'awarenessofappliedmathematics.Intheprocessofgroupcooperation,cultivatestudents'positivethinking,activecooperation,mutualhelp,andgoodhabitsofcommunicationwithpe
4、ople.Furtherunderstandingoftheinternalrelationshipofmathematicalknowledge,experiencethevalueofmathematicalknowledgeandmethodsinsolvingpracticalproblems,togainthejoyandexperienceofsuccess.teachingHeavyanddifficultpointsEmphasis:skillfullyusingfractionalmultiplicationandsub
5、tractiontosolvesomeslightlycomplicatedpracticalproblems.Difficulty:theanalysisofthequantityrelationandtheunderstandingoftheproblemsolvingstrategywhensolvingtheproblem.teachingResourcesCase3isteachingonthebasisofexample2.With2differentcasesis3cases,istheproblemofcomparingb
6、etweenthetworelativelyindependentofthenumber,somestudentsmaystillinthehabitofusingalinetosaysoistoguidethestudentsaccordingtotherelationshipbetweenthenumberoftopics,tryingtodrawtwolinestoexpress.Thiscourseaimstocultivatestudents'interestinlearning,startingfromtheexistingk
7、nowledgeandexperienceofstudents,sothatstudentswilllearn,happylearning.PreviewDesignAnswerthefollowingquestions:(drawalinegraph)(1)WangFanglookedatthe120pagestorybook,alreadyreadthewholebook,andhowmanypagesdidn'tlook?(2)thereare96studentsinthewholeschool,includingmalestude
8、ntsandfemalestudents(3)therewere24classesintheprimaryschoollastyear,andthenumberofclassesincreas
