资源描述:
《lus课件大赛-1b3-张译尹-成都市光荣小学校》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、教案《LightUpScience》IBUnit3FloatingAndSinkingLesson1Whatfloats?Whatsinks?成都市光荣小学校张译尹【教材分析】本课教学内容是小学科学双语教材《LightUpScience》IB,第三单元《FloatingAndSinking》的第一课时(Whatfloats?Whatsinks?》,本单元学习物体在水中浮沉情况的相关科学知识,本课学习哪些物体在水里会浮,哪些会沉,以及相关的英语语言知识。【教学对象】小学三年级学生【学情分析】浮和沉是生活中常见的现象
2、,三年级学生也有一定的科学观察方法,通过本课的学习理解浮和沉并了解哪些东西在水里会浮哪些会沉并不难,但要让学生利用本课学到的英语词句来描述此现象有一定的难度。【教学目标】1.学科目标:通过本课的学习,学生将能够:①检验某一物体是上浮还是下沉;②理解物体的浮沉与其质量无关,而是取决于它的材料。2•语言目标:在本课中,学生将有机会使用:①浮和沉的相关词汇:float,sink.②句型“(Penc订s/Stones)(float/sink)・”来描述物体的浮和沉。【教学准备】教师准备:课件,磁带,单词卡,透明玻璃容器;
3、学生准备:用于做实验的各种物品。【教学过程】—、Lead-inT:Goodmorning,boysandgirls.S:Goodmorning,MissZhang.T:Beforeclass,lefslookatthesepictures,whatcanyousee?S:Lemon…T:Dotheyfloatorsink?S:Lemonssink...T:Let'slistenandthink.二、StimulusactivityT:Whichobjectsfloat?Whichobjectssink?S:Boa
4、tsfloat...T:Canyoulistsomeotherobjectsthatfloat/sink?(LetSdogroupworktohaveadiscussion.)S:Spoonsink…T:Ok,canyouguesswhatwearegoingtolearninthislesson?S:FloatingandSinking.T:Yes,verygood・Firstofall,letslistentothetape,trytorepeatthekeywords・S:Listenandrepeatth
5、ekeywords.T:Nowreadafterme.S:Read.T:AskStopayattentiontothepronunciationoftheword“sink”,andtellthemthedifferencebetweerTthink”和“sink”.三、Activity1:Whichobjectsfloat?Whichobjectssink?T:Lookatthesepictures,whatarethese?S:Chopsticks,spoon...T:Whichobjectsfloat/si
6、nkdoyouthink?Pleasediscusswithyourpartner,usingthesentencestructureulthink(pencils/stones)float/sink.”AndwritedownthenumbersonP27accordingtoyourprediction.S:Groupwork.WritedownthenumbersonP27・T:Now,4Sagroup.Pleasetakeouttheseobjects,putitintothewater,observin
7、gwhethertheyfloatorsink.WritedownthenumberonP27.S:4人一组做实验,观察,并把实验结果写在书上。(老师巡视)T:请两个小组来汇报实验结果,用句型Pencils/Spoons)(float/sink)'・然后让学生来说不说实验结果和他们之前的预测有没有偏差。(在课件上显示出这些物体的浮沉情况。)T:Nowweknow,someobjectsfloat,someobjectssink.(先让学生总结,再给出答案。让学生听然后重复。)U!Activity2T:Look,t
8、hereare3sticks,whatarethedifferences?S:大小、重量不同。T:Whichfloats?Whichsinks?Discusswithyourpartner.Tick.S:Discussandtick・T:Nowyoucanputthesticksintowater,seewhetheryourpredictioniscorrect,obs