2、提出问题:3张大饼怎样能够平均分给唐僧师徒四人呢?每人得到大饼的多少张呢?3、揭示课题:分饼二、动手操作,探究新知:活动操作一:3张饼平均分给4个人。1、要求学生用准备好的圆纸片代表饼,剪一剪,拼一拼,画一画,小组交流自己的想法。教师巡视并进行指导。2、各小组汇报分法及分得的结果。(指名回答)第一种分法:把一张一张的饼平均分成4份,每人分每张饼的,共分一张饼的。并请学生上台演示分的整个过程。第二种分法:把3张饼叠起来,平均分成4份,每人分得3张饼的,也是张饼,请学生上台演示分的整个过程。3、演示学生两种分法的图片:4、请观察,这个分数有什么特点,分子比分母小,你还能举几个这样的例子吗?像这样的分数叫作真分数,真分数小于1。
尊敬的领导,评委老师:大家好,今天我说课的题目是北师大版小学数学五年级上册第一单元第五节《除得尽吗》。我将会以说教材、说学生、说教法、说教学过程、说教学效果评测、说反思等六各方面进行我的说课。一:说教材《除得尽吗》本节内容是本单元的第五节,是在学生已经学习了整数除整数、整数除小树、小树除小数、以及四舍五入保留若干位小树的基础之上进行设置的。本节内容的主要知识点就是让学生认识循环小数、表示循环小数以及“四舍五入”法取其近似值,总体难度不大。二:说学生对于五年级学生而言,已经在四年级学习了“四舍五入”法,所以在本节新授教学中已经有了一定的基础。对于教师的教和学生的学都有了一定的促进作用。
【设计意图:让学生在操作、探索的基础上,组内交流想法,再在班内交流汇报,让学生的语言得到相互交流、碰撞,从而不断激发学生的思维火花。】师:你能把这些摆法用算式写出来吗?(学生独立写出算式并汇报)依学生汇报板书:1×12=122×6=1212×1=126×2=123×4=124×3=12师:请同学们观察一下,哪两道算式的因数一样?学生观察算式,找出因数一样的算式。师:那么,这6个算式最少能用几种算式表示出来?引导学生说出能用3种方法表示,这三种方法是:1×12=122×6=123×4=12,并指明算式一样时选择其中一种说出来。板书:12=1×12=2×6=3×4师:同学们观察一下,12的因数有哪几个?(学生说出12的因数有:1、12、2、6、3、4。)师:拼长方形与找因数有什么关系呢?(指名学生说一说)师:根据刚才的操作交流,请同学们说一说怎样找一个数的因数呢?(学生思考片刻后汇报,可以组内交流。)引导学生说出:用乘法思路想,看哪两个数相乘得12,然后一对一对找出来。
第一:说教材。“质数和合数”是九年义务教育小学数学五年级(上)第三单元的内容,在教材第39~40页;是学生学习了因数和倍数的意义,了解了2、5、3倍数的特征之后的重要知识,它是学生学习分解质因数、求最大公约数和最小公倍数的基础,在本章教学中起着承前启后的重要作用。第二:说教法:根据新课标的精神和学生实际,我将本节课教学目标定为:1)找因数填表格经历探索质数与合数的过程,理解质数与合数的意义;2)能正确判断一个数是质数或合数;3)在研究质数的过程中丰富对数学发展的认识,感受数学发展的文化魅力;4)、在猜想——验证——概括——理解的过程中体会学习数学的乐趣,积累数学学习的方法。第三:说教学重难点重点:理解质数与合数的意义。难点:能正确判断一个数是质数还是合数,体会数学学习的方法。教学准备:课件教学安排:两课时。
教学参考时间:5分钟(1)教师课前在教室里藏好一些动物和人物的图片。(2)给全班学生一分钟时间寻找。(3)请找到图片的学生根据图片上的人物或动物正在做的动作表演对话。活动七:猜一猜教学参考时间:5分钟(1)教师一只手拿一张图片,另一只手用白纸遮住图片,一边慢慢抽动白纸,一边问:What are the…s doing? 学生用They are…猜图片中的内容。(2)猜对的学生上台主持游戏。(3)教师也可以在白纸上剪几个圆洞盖在图片上,慢慢移动白纸的位置让学生猜白纸下面图片的内容。(4)也可以分组利用词卡做该游戏。4、Consolidation and extension (巩固与扩展)活动八:练一练教学参考时间:5分钟(1)活动手册Ask and write. 让学生看一看两个表格,找规律做问答,然后再把表格中所缺单词写出来。(2)活动手册Let’s find out.让学生仔细观察两幅图找出不同的地方,并用英语表达出来。活动九:小结教学参考时间:1分钟本课我们学习了如何询问他、她、它们正在做什么What are they doing? 及回答:They are…5、板书
学生搜集中外重要节日及部分中外名人的生日所在的月份。教师准备相关节日及部分中外名人的图片或音像资料片。教师课前准备Let’s find out2的配图画好春、夏、秋、冬四个方框。录音:Listen and number。教学过程:Warm up (热身)活动一复习单词教学参考时间:3分钟(1)教师播放Let’s chant部分的歌谣,学生听一遍后跟唱。(2)出示带有各个月份特征的单词卡片。学生看图说出单词,并一起拼读其缩写形式。帮助学生在有节奏的说唱中巩固记忆单词,为在后面活动中学生能够熟练应用作铺垫。活动二 复习句子教学参考时间:5分钟(1)师生同唱Let’s chant部分歌谣“When Is Your Birthday?”。(2)教师引导学生看歌谣下面的翻滚过山车的动画,师生进行问答,如:When is the rabbit’s birthday? It’s in May. 等。教师示范后请学生进行Pair work,也可以展开竞赛的形式进行“连锁问答”。巩固有关生日问答的语句,为Let’s find out1的活动做准备。
教学参考时间:2—3分钟教师让学生说出几个家庭成员名称,如:father, mother, sister, brother, uncle等,自己或让学生把单词写在黑板的一侧,再让学生说出几个动词短语的-ing形式,如:washing clothes, writing an e-mail, watching TV等,写到黑板的另一侧。学生在家庭成员名称和动词短语中分别选三至四个,自己编成一首歌谣。课后,可以让学生将创作的歌谣进行展示或举行歌谣朗读比赛。5、Consolidation and extension (扩展活动)活动十:知识扩展教学参考时间:1—2 分钟教师让学生打开书第54页Good to know 部分,了解主要国家的紧急救助电话。如:美国,英国,加拿大,澳大利亚等。教师还帮助学生了解我国的紧急救助电话号码。教师可以利用道具电话让学生做游戏。活动十一:练一练教学参考时间:2—3 分钟做本单元B Let’s talk部分的活动手册第37页的配套练习。教师讲解题目要求。教师播放录音,做Listen and number 部分练习。要求按所听内容在图上写出序号。再次播放,让学生按录音内容填空。鼓励学生自己读读所写句子。
学生初步了解对话内容,在描述中培养学生的语言运用能力。(2)教师让学生自己阅读本部分对话,不理解的生词和句子可以和同学或老师共同商讨。(3)教师帮助学生理解句子:“The weather report says it’s going to rain tomorrow. I can’t play football in the rain. I can’t go hiking, either. Let’s watch TV together.”出示图片:1) 晴天,Zoom在踢足球,图下显示:today;2)天在下雨,Zoom和Zip在屋里看电视,图下显示:tomorrow。与学生展开对话T:What’s the weather like today? S:It’s fine/ sunny. T:What does the weather report say about tomorrow?S:It’s going to rain.T:The weather report says it’s going to rain tomorrow.(呈现句子)(学生重复句子The weather report says it’s going to rain tomorrow.,并说出意思。)T:Can you play football in the rain?S:No,I can’t.T:Can you go hiking ?S:No,I can’t.T:In the rain, we can’t play football. We can’t go hiking, either. (呈现:either)学生跟读either,感悟单词的用法,教师讲解意思:(不......),也不...启发学生用either说两句话:In the rain, I can’t ... I can’t ..., either,从而在应用中巩固单词的读音和用法。
Teaching Goal:1. General aims:Talk about recent past events2. Particular aims:A. Language Focus.Talk about recent past events and think of the past events.B. Language goalsHow was….?It was …What did …do over the weekend?C. Language structures:(1). How was your weekend? I was great. Pay attention to no form.(2). What did you do over the weekend? I played soccer. We went to the beach.D. Useful words and phrases:Words: was, did, went, beach, over, project, test, wasn’t, false, number, geography, spend, week, most, mixture, their, had, little, cook, read, saw, change, everyone, sit, sat, no, anythingPhrases: did one’s homework, played soccer, cleaned my room, went to the beach, played tennis, went to the movies, on Saturday morning, over the weekend, cook … for, what about, do some reading, have a party, talk show, go shoppingE. Grammar language:Present simple past tenseRegular and irregular verbsF. Learning strategies:Tour and holidaysG. Interdiscipinary:H. Emotion and manner:Teaching time: 5 periodsTeaching procedures:Period One教学步骤、时间 教师活动 学生活动 媒体应用Step 1Free talk 3’ Ask some questions like:Who’s on duty today?What’s the weather like? Answer and talk about something.让同学们回答下列问题1. Do you like weekend? (Let some students answer)It takes them three minutes to talk about the question.2. Why do you like weekend? (let the students answer) Most of the students like the weekend此时教师用汉语问:“在周末期间问你干了什么?这句话用英语这么回答?Let the students guess.At last the teacher give them right answer3. What did you do over the weekend?(板书、学习)
Period 2 (3a----Section B 2c)Preview(Pre-task): Key points: What laAdd another information about their pen pals----their language on the cardnguage does she/he speak?She/He speaks....Does she/he have any brothers and sisters? Does she/he speak English?Preview(Pre-task): Add another information about their pen pals----their language on the cardKey points: What language does she/he speak?She/He speaks....Does she/he have any brothers and sisters? Does she/he speak English?Step 1 Revision1.Revisionand dictation of the new words 2.Revise the drills they learned yesterday.(by pairwork and grammar exercise)Step 2 Leading-inT has a conversation with one student. The conversation is following:---Do you have a pen pal?---Yes, I do.---What's your pen pal's name? ---His/Her name is....---Where is your pen pal from? ---He/She is from...---Where does he/she live? ---He/She lives in....---What language does he/she speak?He/She speaks...Write the new words on the Bb. They are following: EnglishChineseJapaneseFrenchStep 3 LearnLearn the new words with the whole class.Finish 3a with the students3b Pairwork T still does an example with one student Then the Ss practise in pairs. The example is following:--Curry Muray is my pen pal. He is from the United States.---What language does he speak?
三、教学建议第一课时:1. Lead in (Vocabulary)A) Before class, teacher should collect some pictures of working places. For example: Bank, TV Station, Restaurant, Police Station, Hospital ...B) In class, show students the pictures (PowerPoint, OHP). Ask students to tell the name of the working places and the name of the jobs.Shop assistant, doctor, actor, reporter, police office, waiter, bank clerk, studentC) Do exercise 1a and 3a.2. Bingo GameAsk groups of students to make up pairs of cards with a job on one and the related workplace on the other. For example, waiter / restaurant, teacher / school, doctor / hospital. Encourage students to use both the job / workplace combinations in the book and the ones that students came up during class discussions. Be sure they have twice as many sets of cards as there are students in the group. They can make two sets of cards for a single job / workplace, if necessary. Then have each group mix up its set of cards and hand their cards out in random order. Each time a student gets a pair of cards that match, he or she can lay these cards down. The goal is to have no cards in your hand at the end.3. Task OneA) Ask students to work in pairs and ask the partner what does he / she want to be in the future.e. g. :What do you / does he / does she want to be?I want to be a.Why?Because it's (adj).B) Vocabulary: Section B, 1a4. Homework 1.2.
2.1Match the country with the language.Step II Reading3a? let the students read the letter fast and answer the questions.? Let the students ask more questions about the letter as possible as the can.Step III Writing3b.Step IV. Pairwork2cStep V Listening2a, 2bStep V. HomeworkExercises book(1) P3Exercises book (2) P3Period FourStep I . Dictate the words and sentences in Unit1.Step II. Self-checkStep III. Check the answers for Exercises book in the unit.Step IV. Home workRevise and preparation for unit 2.教学反思:通过本单元的学习,学生基本可以谈论人们的国籍,居住城市及其所说的语言,通过书信方式去介绍自己并寻找笔友。但在涉及到国外的一些城市时,学生对这方面的知识相对欠缺,能介绍的城市并不多,也反应出学生课前预习不充分,这跟学生学习条件也有关,大多数学生无法通过网络获取所需信息。因此,在以后的教学中要多指导学生通过计算机网络获取信息,拓宽知识面。
单元整体说明(一)单元教材分析本单元的核心话题是描述动物和表达个人喜好,以及句式why do you like…? Because…。这也是本单元的教学重点。通过本单元的学习,学生应能较流利地运用所学词汇和句型描述动物,表达个人喜好。(二)单元知识结构1.词汇动物名称 tiger, elephant, koala, dolphin, etc.词汇描述性形容词: smart, cute, ugly, clever, shy, etc.国家名: Australia, South Africa2.句型Why do you like koala hears? Because they are cute.Where are pandas from? They're from China.What animals do you like? I like dolphins.(三)单元整体目标1.Master the vocabulary2.Master and use: Why do you like koalas? Because they am cute.Where are pandas from? They're from China.What animals do you like? I like dolphins.(四)单元教学重难点一览(五)单元学情分析学生此前已经学过由why, where, what 引导的特殊疑问句句型,具有了学习本单元知识的认知前提。形形色色的动物能激发学生的好奇心,产生了解它们的欲望,这有利于本单元知识的教学和学生学习兴趣的培养。
所需要用到的句子:Who is that?That is Jack. I like him.Why do you like him?I like him because he is interesting.Task 4: 设计理想中的人类Step one: 设计理想中的人类的外貌。把全班同学分成若干小组,学生可以边说边在纸上画出他们的模样。Step two: 设计理想中人类的性格。学生们可以把那些能描述性格的单词写在图画的旁边。Step three: 每组选出一名同学,其他同组同学提问,他作简单回答,并说明原因。所需用到的句子:What does he or she look like?He or she ...What is he or she like?He or she is ...Why?Because ...Task 5: 挑战性活动调查性格是天生的还是后天形成的,让每个同学回家去调查一下自己成长过程中性格是否有变化,具体是怎样的,为什么会这样? Teaching Aims:1. Enable students to have a general understanding of how to talk about people's physical appearance.2. Enable students to tackle some essential vocabularies and patterns about describing people. Provide them with necessary skills and methods.3. Create various chances for students to describe the persons they're familiar with, such as classmates, family members, teachers, idols, etc.
Don’t fight. =You can’t fight. (板书,教读)教师把这些句子板书在黑板上,并请学生大声整齐地读祈使句和“can’t”句型,并让学生注意两种句型表达形式的不同和转换,“Don’t …=You can’t…”;并对学生说:These are our school rules. (板书,教读) You can’t break the school rules. Don’t break the school rules.(板书,教读)步骤3 :Practicea. T: Now, each of the students is breaking one of these rules.Please finish 1a.学生看图,完成1a的内容,检查答案并大声朗读校规。b. 听录音,完成1b,选出四位学生都违反了哪条校规;听之前,学生要读会英文名。c. 请两位学生朗读1c部分的句型;要求学生两人一组对话表演,SA扮演外校转来新生,SB告知本校校规。(学生可经过讨论,多说出他们想到的校规,不必只限于书上;教师应给予帮助)2) 第二课时(2a~4)步骤1 :warming up of revisionT: What are the rules at your school?学生使用“can”或祈使句表达各条校规;其中老师可引出“eat in the cafeteria outside”的表达。步骤2 :Practicea.T: Christina is an exchange student. She doesn’t know the rules. Let’s listen, what activities they’re talking about?学生听第一遍时,完成2a;第二遍时,完成2b;b. 请学生领读2c部分,看着2a完成的表格,理解2c活动的要求;分成小组针对2a进行问答;
教学过程Step 1: warming-up Sing a song---------“food and drink” Step 2: Revision1 Dictation2 Revise: What kind of noodles would you like?I’d like …What size bowl of noodles would you like?I’d like…Step 3: Presentation1 show pictures of food, ask students say the words.2 Students read the newspaper ad in 3a. Fill in blanks with words in the box. Then read the ad together, the teacher explains some difficult language points.3 Check the answers Step 4 PracticeAsk students to finish 3b in the same way according to 3a. Students read the short passage and fill in the blanks .At last, check the answers.Step 5 productionAsk students to write their own ad for dumplings, noodles, drinks, and other foods they know. Then ask students to read their partner’s ad. Then order food and drink from their partner.Step 6 Home workGroup work – make an ad about “food and drink”
1 Each group choose one place to describe and what you are doing in it Choose one place, and describe what they are doing 2 Move around the room and give suggestions Talk about it and write it down 3 Ask one to show their works and act it Choose one of each group to make a report 4 Evaluate the best group and the best reporter Choose the best one Homework Ask your friends their ideal place and write about it教学反思:新课程标准中强调学生在课堂中的主体地位,在综合课中他们的主体地位就更加突出。在各个活动中给不同程度的学生不同层次的任务,让各层面的学生都有表现发挥的机会,从而产生对英语的兴趣。使用照片图片多媒体来辅助教学,效果更好。同时让了解其他国家风景,风俗的同学介绍ideal place,增加学生的背景知知识,实现跨学科交流的目的。教案点评:采用任务型教学模式,在各个活动中给不同程度的学生不同层次的任务,让各层面的学生都有表现发挥的机会,从而产生对英语的兴趣。使用照片图片多媒体来辅助教学,效果更好。让了解其他国家风景,风俗的同学介绍ideal place,增加学生的背景知识,实现跨学科交流的目的。
五、教学Section B-2c1. Pair work: What do you think of the belt/sunglasses/…? What does your father/mother/… think of your scarf/belt…?2. Group work(1). Teacher shows some different kinds of school uniforms (制服)and asks : “ What do you think of your school uniforms? If you have a chance to choose your school uniforms, what kind would you like to choose?”(2). Discuss in groups.(3).Get some Ss to report in class.说明:这一步旨在让学生运用已有的语言知识谈论对事物的看法和意见,并简单阐明理由,培养学生的主动思维能力和运用英语的能力。六、教学拓展调查电视节目的收视率任务:调查你周围的人对现在各种电视节目的反响。活动过程:1.教师布置任务,让学生调查周围的人(包括他的亲戚朋友和邻居)喜欢收看哪方面的电视节目。2.学生进行调查活动,运用本单元所学的句型What do you think of….? (Why?)What's your favorite game shows?What do you think of talk show?I doesn’t mind it.I like it.I love it.I can’t stand it.3.记录下排在前10位的TV Program,填写调查表,比较其收视率。
句型: Where did you go on vacation? I went to summer camp.Did she go to Central Park?Yes,she did.No, she didn’t语法:一般过去时特殊疑问句、一般疑问句及肯、否定回答。课时安排4课时第一课时:Section A:la,1b,lc,2a,2b,2c 第二课时:Section A:3a,3b,4第三课时:Section B:1,2a,2b,2c第四课时:Section B:3a,3b,3c,4 and Self Check第一课时教学目标掌握描写假期生活的形容词。假期里自己所做事情的简单表达。谈论假期做的事情及当时情况。谈论假期时旅游的天气,旅游者以及食物等。教学过程一、导入播放一首英文歌曲:Let’s travel 说明:通过让学生听节奏欢快迪斯尼英语歌曲Let’s travel.引入本节课谈论的话题vacation and travel. 让歌曲使学生的思维活跃,增强课堂气氛,激发学生提高学习英语的兴趣。T:How is the trip ?Ss : It’s pretty good/ happy/exciting /relaxing/busy/dangerous/ fantastic说明:这个问题是为了操练形容词。建议让多个Ss作答。鼓励他们用不同的形容词。上述个别形容词本应在第二课时中出现,但可以在warming-up中第一次非正式出现。这些形容词也可在老师的评价语中适时出现,以加深学生对词汇的印象。
(6)交流。6的乘法口诀一共有几句?口诀中的第一个数与算式中的第二个因数相同,表示什么?口诀中的第二个数与算式的第一个因数相同,表示什么?相邻两句口诀的积相差几?哪几句难记一些?你用什么方法记呢?怎样记住"三六十八"、"四六二十四"两句口诀?教师在学生发言的基础上鼓励学生大胆说、想出不同记口诀的方法。(7)应用"做一做"第1题(学生半独立完成):①用6根小棒摆1个六边形;②摆2个六边形要用多少根小棒?你是怎样想的?(想口诀"二六十二"。)③运用所学的口诀口答摆4个、6个、3个、5个六边形所需要向小棒数。"做一做"第2题(独立完成):①将第2题改为填空题,在圆圈内填写正确的积;②口答得数,并说一说所用口诀。