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四年級上Unit3Howdoweusenumbers?Period1GetreadyCorecompetencesBytheendofthelesson,Iwillbeableto...talkaboutnumbersinMaths;doadditionandsubtractionwithnumbers.談?wù)摂?shù)字在數(shù)學(xué)學(xué)科中的應(yīng)用;用數(shù)字做加減法。1Leadin導(dǎo)入環(huán)節(jié)3Practice知識操練5Summary課堂總結(jié)2Presentation新知講解4Production輸出運(yùn)用6Homework作業(yè)設(shè)計(jì)01LeadinWatchandenjoyWherecanwefindnumbers?Wecanseenumbersonaclock.Wecanseenumbersonthepricetags(價(jià)格標(biāo)簽).Wecanseenumbersonthekeyboard(鍵盤).Wecanseethenumbersontheroadsigns.Wecanseenumbersinmathsclass.Numbersareeverywhereinourlives.02Wecanusenumberstocount.PresentationWhydoweneednumbers?Howcanweusethemtocount?CanyousaytheminEnglish?Let'scountonetwothreefourfivesixseveneightninetenLet'scounteleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentyLet'slearnThinkandputthenumbersintotwogroups.2468101214161820135791113151719oddnumbers奇數(shù)evennumbers偶數(shù)Let'slearnLet'slearn

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plusequalminusanswerplus加;加號minus減;減號equal等于answer答案;回答Let'slearn02PresentationListen,pointandsayplusequalminusansweroddnumbersevennumbersListenandsay1.Therearesomenumbersontheblackboard.One,threeandfiveareoddnumbers.Two,fourandsixareevennumbers.Listenandsay3.Thisisaminus.Whatisfourteenminusone?Theansweristhirteen.2.Thisisaplus.Twelveplussevenequalsnineteen.Let'slearnplus加符號“加號”minus減符號“減號”Let'slearne.g.Idon’tknowtheanswer.(名詞)我不知道答案。Canyouanswerthequestion?(動詞)你能回答這個(gè)問題嗎?answer名詞動詞答案回答ReadandcircleCirclethecorrectnumbers.1Tenplustwoequalstwelve.10-1=910+2=122Thisisanevennumber.493Thisisanoddnumber.564Tenminustwoequalseight.6+2=810-2=8Watchandlearnplusminusequalansweroddnumbersevennumber加;加號減;減號等于奇數(shù)回答偶數(shù)PlayagameRead

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find16110579131864Canyoufindtheoddnumbers?03PracticeReadandfind16110579131864Canyoufindtheevennumbers?Listenandchoose913Listenandchoose1220Listenandchoose97Listenandchoose69Listenandchoose1918Listenandchoose1214ListenandcompleteTherearesome_________onthe__________.One,threeandfiveare_____numbers.Two,fourandsixare_______numbers.numbersblackboardoddevenThisisa______.Twelveplusseven________nineteen.plusequalsThisisa_______.Whatisfourteenminusone?The_______isthirteen.minusanswer04ProductionLookandguessLookatheadings(標(biāo)題)andguesswhatthepoemisabout.LookandguessLookatalltheclothes!Tenhats!Tanyaloveshats.Shehastenhats.Therearethreehatsforrainydaysandsevenhatsforsunnydays.SevenT-shirts!Leon’sfavouriteclothesarehisT-shirts.HehassevenT-shirts.FourT-shirtsareblue,andthreeT-shirtsarewhite.LookandguessTenhats!SevenT-shirts!Ithinkit’saboutnumbers.CalculateandsayFourteenminussevenequalsseven.CalculateandsayNineplusthreeequalstwelve.CalculateandsayThirteenminusfiveequalseight.CalculateandsaySevenplussixequalsthirteen.CalculateandsayElevenplusfourequalsfifteen.CalculateandsayEightminustwoequalssix.

Words&phrasesplus;equal;answer;minus;oddnumbers;evennumbersSentences…plus…equals……minus…equals…Th