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1、Chapter4Theworldofnumbers(Intensivereading)Teachingaims:1.Togetfurtheringlearningaboutthepassage,learnthe12phrasesinthetext.2.Knowhowtousethephrases.3.Tolearnhownumbersdevelopedwiththetimes.Teachingkeypoint:The12phrasesinthetextTeachingdifficultpoints:1.P
2、hrase:helpsb.dosth.2.Recitethepassage.Teachingprocedures:步驟目的教師活動(dòng)學(xué)生活動(dòng)條件/手段Step1.RevisionCheckthehomeworkandprepareforthelesson.1.Guidethestudentstousereadingskills.(Itisapassageaboutaclock.)Tellandchecktheanswersofthisreading.BlackboardStep2.Lead-in1.Getc
3、losetotheSs2.Createaneasyatmosphere3.Leadintothelesson1.Asksswhat’sthetopicofthepassage?(Aclock)2.Showaclocktoshowweusenumberstotellthetime.Askss“Wherecanweseenumbers?”1.Answerthequestion.2.Freetalk:“Wherecanweseenumbers?”ComputerStep3.Intensivereading1.G
4、etthefurtherlearningaboutnumbers.2.Gettheideahowancientpeoplewrotenumbersinmanydifferentways.1.Askstudentstoansweraquestion:Howmanylanguagesdoyouknow?2.A.AskstudentstoreadPara1tounderstandhowancientpeoplewrotenumbersinmanydifferentways.(showapictureofdiff
5、erentnumbers)B.Asksstofindthe1.Answerthequestionandthenreadtheheadlineandthentrytoreciteit.2.ReadPara1andfindancientpeoplewrotenumbersindifferentwaysbythehelpofthepicture.ComputerandtextbookShowingpicturesComputer1.TraintheSs’intonation;getabetterundersta
6、ndingofthecharacter.2.EducateSstobecareful.3.EducateSs’abilityofanalysis.4.EducateSs’abilityofanalysis.5.Thecomputersareverypowerful.similarofancientnumbers.1.AskastudenttoreadPara2.Andtheotherstudentstocorrecthisorherintonation.Andthenshowapicturetohelpt
7、hesstounderstandwhatthesystemofnumberstodayis.Askaquestion:What’stheimportanceoftheinventionofthezero?2.AskSstoreadPara3tosix.Ask:Howmanycalculatingmachinesarethereinthebook?3.Analysistheabacus’sfeatures.4.Explainthemodernelectroniccalculator.Focusonitsfu
8、nctions.5.Showacomputer,asktwoquestions:A.Howdopeoplethinkofthecomputer?B.Howfastcanacomputer1.Readandanswerthequestions.2.Withthehelpofthepicturesinthebook,thestudentstrytogetthesenseofthedevelopmentofcalculatingma
