高中英语语篇教学教案模板(共6篇)

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高中英语教案

高中英语教案

高中英语教案•相关推荐高中英语教案(通用6篇)作为一位无私奉献的人民教师,编写教案是必不可少的,教案有助于顺利而有效地开展教学活动。

教案应该怎么写呢?下面是小编收集整理的高中英语教案,仅供参考,希望能够帮助到大家。

高中英语教案篇1教学目标:学生基本掌握meat,rice,noodles,fish,milk.懂得Do you like?”是提问“你喜欢”并能作出相应的回答。

通过说唱活动培养学生的英语语感,提高学生的思维能力和语言能力。

通过学习、合作、交流,激发学生的学习动机,培养学生学习的兴趣,充分调动学生学习的积极性;把所学语言知识与实际生活紧密结合。

遵循“以学生发展为本”的课改理念,面向全体学生,启发和引导每一个学生积极主动地参与到学习活动中,培养和提高学生合作学习的意识和能力。

教学重点:掌握有关食物的英语单词,谈论并询问他人的喜好。

教学难点:一般疑问句的用法。

教具准备:多媒体课件,自制食物图片。

教学过程:Step1 热身运动(反应游戏:Touch your face, Touch your nose)通过TPR活动,有助于帮助学生集中注意力,做好上课的准备。

Step2 揭示课题T:同学们平时都喜欢吃什么食物?S:肉、牛奶?T:同学们想知道这些食物用英语怎么说吗?今天我们就一起来学习。

直接点明这堂课的学习任务。

Step3 师生交流T:出示fish图片.I like fish.(表现出喜欢的样子)Do you like fish?引导学生回答Yes,Ido.T:Here you are.(做出给对方的样子)S:Thank you.教师可以和多几个同学练习。

T:出示noodles图片Idon’t like noodles(表现出不喜欢的样子-摇头)Do you like noodles?引导学生回答No,Idon’t.教学其他单词方法同上。

备课思路:师生的真实交流,让学生感受到语言与实际生活紧密结合,通过这种自然的方式把新的语言项目呈现给学生,让学生体验获取知识的成就感,培养自信心。

高中英语教案模板四篇word版

高中英语教案模板四篇word版

教学资源一般是指教师在上课过程中用到的素材内容,一般包括教案、课件、引用内容等,有了教学材料的支持,课堂内容会更加丰富,更具趣味性,让学生在相对有趣的环境下掌握学习内容。

教案是老师们经常需要准备的材料,好的教案能够把知识点融入到具体场景中,让学生更容易理解。

学习参考一些优秀的教学教案,能够提升教学材料的设计水平,让学生更容易掌握各个章节的知识点。

为大家整理了优质教学教案等资源案例,方便大家参考学习。

语言与文化互相影响,互相作用,理解语言必须了解文化,理解文化必须了解语言。

但是,由于种.种原因,目前许多高中学生普遍缺乏必要的英语文化意识。

下面给大家带来关于高中英语教案,供大家参考。

更多关于“英语教案”的相关文章内容推荐(↓↓↓)小学英语备课教案四年级英语备课教案模板外研版小学英语四年级下册教案设计五年级译林版英语教案模板优秀小学六年级英语教案模板高中英语教案1Ⅰ. Teaching Basis (教学依据) :《普通高中英语新课程标准》Ⅱ. The Type of the Text (课型) :Revision (复习课)Ⅲ. Teaching Methods(教学方法): Question-based method(提问式),Group discussionmethod(小组讨论法),Cooperative learning(合作探究),Practicing(练习).Ⅳ. Teaching Aids (教学手段) :Multimedia computer(多媒体电脑),Learningpaper(导学案),Blackboard(黑板).Ⅴ. Teaching Aims(教学目标) :①Knowledge aims(知识目标): words: achievement, specialist, organization, hard-working, confident…..phrases: put to death, mean doing, either…or…, the bond between……, structure:only+…., It is/was+….+that…. grammar: Subject-verb agreement.②Ability aims(能力目标): Develop the students’ability to use the importantlanguage points, enable students to describe people using the adjectives.③Emotional aims(情感目标): Encourage the students to think about what makesaperson great.Ⅵ. Teaching focuses(教学重点):Get the students to review and consolidate whattheyhave learned in this unit.Ⅶ. Teaching difficulties(教学难点):Get the students to turn whatthey havelearned intotheir ability.Ⅷ.Teaching procedure(教学过程):Step 1 复习学案情况反馈(1分钟)Step 2 lead-in :通过图片展示的方式,过渡到知识竞答类节目《一站到底》,本节课也将模仿这种模式授课。

高中英语教案英文版5篇

高中英语教案英文版5篇

高中英语教案英文版5篇高中英语教案英文版5篇教案可以恰当地选择和运用教学方法,调动学生学习的积极性,面向大多数学生,同时注意培养优秀生和提高后进生,使全体学生都得到发展。

以下是带来的内容,感谢您的阅读,希望能帮助到您!高中英语教案英文版1Teaching Procedures of Period 1:Step1.Warming up (15 mins)Ss know a lot about sports from everyday life and media, so I arrange sucha task -discussion(group of 4): Q: What do you know about sports?During this process, if Ss can’t express themselves in English, Chinese isalso all right. Besides, it is agood chance to present new words. If necessary, I will make somecomplements. At the same time, I will present them as many pictures about sportsas possible.Possible response:school sports meetSports meet the National Gamesthe Asian Gamesthe Olympic Gamesthe World Cupetcball games: volleyball, basket ball, football, table tennis, tennis,,golfbadminton, bowling, baseball, American football, ice hockey etcEvents of sports track and field: relay race, long jump, high jump, polejump, discus, shot, javelin etcgymnastic: rings, double bars, high and low bars, horse , free exerciseswimming/shooting/skiing/ ice sports/diving/aquatic sports etcSport stars : Beckham, Mike Owen, Michael Jordan etc Purpose: This activity is designed to encourage students to think aboutsports and activaterelevant vocabulary.Step 2. Speaking(15 mins)Task1(pair work): Talk about their favourite sports, favourite sportsstars, and the reason why they like them, with the following expressions as aguide.(See SB p52) Task2(pair work): A survey about physical fitness (Seepostscript 1)Task3(group work): Add up their total scores and divide by the number ofpeople. Then get their group’s average scores. Discuss their survey answers.1). Do you think your group is doing well or not? Why ?2). How can you become fitter?高中英语教案英文版2教学目标Teaching aims and demands本单元的教学目标是使学生掌握表示判断和个人看法的常用语句,学会使用现在完成时的被动语态。

高中英语教案模板范文5篇

高中英语教案模板范文5篇

高中英语教案模板范文5篇高中英语教案模板范文1一、教材分析主题公园作为人类文明的一大体现,作为当今社会人们主要休闲、娱乐方式之一,是一个非常贴近生活、具有时代性、可深度挖掘的教学主题。

本单元以主题公园为背景,围绕a world of fun 这一主题开展听、说、读、写多种教学活动。

单元语言素材涉及过山车、蹦极运动、自由落体车、赛车等娱乐方式及各类主题公园的不同特色,具有很强的时代气息,贴近学生生活,有利于学生了解生活、运动与休闲,了解中外文化,增强世界意识,有利于培养积极的生活态度。

本单元的Warming up部分以图片形式引入本单元的话题之一:amusement parks;并通过师生或生生自由问答,让学生了解并交流个体各类活动方面的体验、喜好及理由,从而引出话题amusement parks 和theme parks,为听力部分和阅读部分作必要的铺垫。

Listening提供一个会议事例:在我市建一个主题公园的招标大会上,Fun Fun Productions and Merry Rides Limited两个不同特色公司的代表人发表演说表达各自优势以争取承建权。

在听音之前需要作恰当的导入,听时做课文1、2部分,听后再作小组讨论:选择哪一家公司作为承建商及给出相应的理由。

这一话题具有社会性,时代性特点,在课堂上可以激发学生模拟真实语境进行创造性对话活动。

Speaking紧紧围绕“问路与指路”话题:课内提供一张公园平面图,学生根据出发点和目的地的联系进行有意义的对话实践。

Post-speaking内容扩展至生活实际情况。

Reading是一篇介绍主题公园的说明文。

它包括主题公园的定义、特点,同时介绍了the World Park of China, the Ocean Park of Hong Kong, Disneyland in California三个不同的主题公园,引导学生了解和比较主题公园的不同主题,激发学生联想主题公园的未来发展。

英语教案范文全英文版高中

英语教案范文全英文版高中

英语教案范文全英文版高中Unit 16 Lesson 63Hello, everyone. Today I’m very pleased to have an opportunity to talk about some of my teaching ideas. My topic is life in the oceans taken from Lesson 63 of Unit 16 in SEFC(2). It is made up of four parts.Part 1 My understanding of this lessonThe analysis of the teaching material:This lesson is a reading passage. It plays a very important part in the English teaching of this unit. Lesson 62 and Lesson 63 are a whole unit. By studying Lesson 63, Ss can improve their reading ability, learn more about the sea and the life in the oceans. At the same time, we should get the students to understand some difficult sentences to comprehend the passage better. The Ss should do some listening, speaking and writing, too. Of course, the Ss should receive some moral education. Let the Ss understand the sea better, love the sea and save the sea and the life of the sea.Teaching aims:1. Knowledge aim: Understand the main idea of the text.2. Ability aim: Retell the text in their own words.3. Emotional aim: Make the Ss love the life of the sea and do something to stop it being polluted.Key points / Teaching important points:How to understand the text better.Teaching difficultpoints:1. Use your own words to retell the text.2. Discuss the pollution of the sea and how to save the sea.Something about the Ss:1. The Ss have known something about the sea and sea life through the Internet and other ways.2. They are lack of vocabulary.3. They don’t often use English to express themselves and communicate with others.4. Some Ss are not active in the class because they are afraid of making mistakes.Part 2 My teaching theories, methods and aidsBefore dealing with this lesson, I’ll do my best to carry out the following theories: Make the Ss the real masters in class while the teacher himself acts as director; Combine the language structures with the language functions; Let the students receive some moral education while they are learning the English language.Teaching method:Double activities teaching methodQuestion-and-answer activity teaching methodWatch-and-listen activityFree discussion methodPair work or individual work methodTeaching aids:1. a projector2.a tape recorder3. multimedia4. the blackboardPart 3. Teaching steps / proceduresIhave designed the following steps to train their ability of listening, speaking, reading and writing, especially reading ability.The entire steps are:Greetings, Revision, Lead-in and preparation for reading,Fast reading(scanning), Listening, Intensive reading, Preparation for details of the text, Consolidation, Discussion, HomeworkStep 1 GreetingsGreet the whole class as usual.Step 2. Revision1. Ask students some questions to revise the last lesson(show them on the screen).a. How much salt do the oceans contain per thousand parts of water?(35 parts of salt. 3.5% by weight)b. What is coral? Why are corals not found in deep water?c. Why is the Dead Sea called the Dead Sea?2. Check the homework(made a survey about the sea or sea life by surfing the Internet or asking for help from other people). Through this part we can consolidate what they studied yesterday, communicate with others about their survery results and prepare for the new lesson.Step 3. Lead-in and preparation for readingShow them some pictures and let them talk each other, and then use the pictures about sea and life in the oceans to learn new words, for example, Antarctica, huge whale, sperm whale, squid and so on.Purpose: Arouse the students’ interest of study.Bring in new subject: Life in the oceans.Step 4. Fast readingRead the passage as quickly as they can. I show the questions on the screen and let them get the main idea of each paragraph:1. Why can living things live in such oceans around the Antarctica?2. What doesthe whale feed on?3. What is the difference between the sperm whale and other whales?Method: Read the text individually, use question-and-answer activity.Purpose: Improve the students’ reading ability.Understand the general idea of each paragraph.Step 5. Listening(book closed)1. Listen to the tape then do an exercise(wb page 90, part 1)2. True or false exercise.(on the screen)Train the Ss’ listening ability and prepare for later exercises.Step 6. Intensive readingRead the passage carefully again and answer some detailed questions on the screen.1. How much does a whale eat at a time?2. Do all the whales feed on small fish?3. How deep can a sperm whale dive?It is also called depth reading or study reading. It means reading for detailedinformation.Purpose: Further understand the text (Train further reading ability) to find out some different sentences and details of the text.Step 7. Preparation for details of the text on the screen1. ...its heart slows to half its normal speed.slow-v. to become / make slower.2. ing sound wavePresent participle used as adverbial.3. provide sth. for sb.provide sb. with sth.4. at a time: each time5. grow to a length of...Purpose: Train the Ss’ ability of understanding and using laguage.Step 8. Consolidation1. Find out the topicsentences.2. Retell the passage according to the topic sentences.Purpose: I want to know if my students understand the whole text really and if they master what I mean to tell them in this class. What’s more, I want to let them have the ability of introducing and analyzing expression. At the same time, I will write down the topic sentences on the blackboard according to what the students find, so they can retell it easily.Step 9. DiscussionShow them some pictures about the polluted sea and many living things which are in danger and ask them: What are their opinions about it? In order to let them have free choice, I give them another topic: The sea is being polluted. What should they do?Purpose: I mean to give them emotional education. I give them multi-media pictures to arouse their interest of study and their love for life.I mean to make them realize: The sea is in danger!Iteach them to do their best to help it and do something from now on. Everyone should do something to love and protect our home.Step 10. HomeworkWrite an article Saving the sea. I want to improve the ability of their writing. At the same time, train the ability of do-it-yourself and looking up the information by themseleves.Part 4. Blackboard designUnit 16 Lesson 63Topic Sentences:1. Some living things can live inAntarctica.(what)2. The whale feeds on small fish.(what)3. The sperm whale feeds on squid.。

英语语篇教学教案(一)

英语语篇教学教案(一)

英语语篇教学教案(一)英语语篇教学教学目标1.学会阅读和分析英语文章的语言结构和语言规律;2.培养学生的阅读能力和语感;3.提高学生的英语写作技能。

教学要求1.学生需要具备一定的英语基础;2.学生需要具备一定的英语阅读能力;3.学生需要有思考和表达的能力。

教学内容第一课:英语文章的句子结构1.简单句和复合句的区别;2.常见的从句类型和用法;3.前后文的关系如何影响语言结构。

第二课:英语文章的语言规律1.词汇搭配的规律;2.语法结构的规律;3.上下文的规律。

第三课:英语文章的主题和段落结构1.主题的确定和表达;2.段落的结构和组成;3.上下文之间的逻辑关系。

教学方法1.教师讲解和解读篇章;2.学生自主阅读和分析篇章;3.学生小组讨论和分享;4.教师引导和点拨。

总结与评估1.点拨学生在阅读中存在的问题;2.引导学生进行写作训练;3.对学生进行评估和反馈。

第一课:英语文章的句子结构课前导入通过给学生展示一篇英语文章,让他们尝试读懂这篇文章。

然后让学生思考这篇文章中有怎样的句型,它们分别有什么特点?重点讲解1.简单句和复合句的区别:对学生进行简单句和复合句的定义和区别解释。

2.常见的从句类型和用法:对学生进行讲解各种从句的类型和用法,并给出例句。

3.前后文的关系如何影响语言结构:演示如何通过上下文的理解来理解语言结构。

练习与评估1.让学生在课堂上进行语言结构分析练习;2.布置作业,让学生在阅读英文文章时进行语言结构分析。

第二课:英语文章的语言规律课前导入通过展示几段不同的英语句子,并让学生分析它们的词汇搭配和语法结构,引出英语文章的语言规律。

1.词汇搭配的规律:学生了解英语词汇的搭配规则;2.语法结构的规律:学生了解英语语法结构的规律;3.上下文的规律:学生了解语言使用的上下文的规律。

练习与评估1.让学生在课堂上进行词汇、语法和上下文分析练习;2.布置作业,让学生在阅读英文文章时对词汇、语法和上下文进行分析。

高中英语课文语篇整体教学(教案文本)

高中英语课文语篇整体教学(教案文本)

( 英语教案 )学校:_________________________年级:_________________________教师:_________________________教案设计 / 精品文档 / 文字可改高中英语课文语篇整体教学(教案文本)Learning English is conducive to making friends, chatting or working together with foreigners, and learning English is very useful for traveling abroad.高中英语课文语篇整体教学(教案文本)教学大纲中明确指出:“课文首先应作为整体教学”。

语篇整体教学一方面是从微观上把语篇作为最小的单位来教;另一方面是从宏观上把整个高中阶段每册书的每个单元当作一个整体来教。

课文的语篇整体教学是搞好阅读教学的重要环节,它的优点在于可以培养学生用英语进行思维的能力和提高学生的语言运用能力。

教师可以运用语篇整体教学模式,帮助学生们理清思路,抓住细节,完整、系统地进行语篇阅读与理解。

下面我就以高中第一册下第74—75课“Thesecretisout”为例,谈谈我是如何进行课文整体教学的。

第一课时:泛读课文1.课前利用卡片复习开学初已经学过的本课生词。

2.采用讨论式导入新课。

如问:Canwomengetjobseasily?Whatjobsdotheydo?3.听课文录音。

通过这一过程,首先,让学生进入一个真实地道的语境,建立声音与意义的联系。

其次,听录音时要求学生不要看书,采用心记法,捕捉信息。

最后让学生回答听录音前提出的两个问题:What’sthesecret?CouldMr.Kingkeephisjobatlast?4.快速阅读。

寻找信息,了解大意,指导学生带问题去快速寻读或跳读。

Questions:HowdidMr.Kinggethisjob?HowwasMr.King’ssecretwasdiscovered?5.学生对全文的概貌有了初步了解以后,再让他们成段理解课文,这时,我主要采用让学生回答问题的形式,如课后练习册的问题。

高中英语优秀教学案例六篇

高中英语优秀教学案例六篇

高中英语优秀教学案例六篇英语教学案例1一、教学目标1.能够听懂、会说几个重要节日的词汇,并能用英语表达这些节日所在的月份。

2.能够以图文并茂的形式介绍自己喜欢的某个节日。

3.欣赏并学唱关于月份的歌曲。

二、教学建议A. Good to know.1.热身与复习(1)复习12个月份的英文表达①教师引导学生认读月份名称的单词卡片,随即发给读词最快的学生。

②拿到词卡的学生一起站到教室前面,按月份的顺序排队。

③全班再次按顺序说出12个月份的英文表达。

(2)教师呈现年历或第一课时歌谣课件,引导学生演唱第一课时所学的歌谣。

(3)师生交流:When is your birthday? It‘s in ...2.学习新知(1)教师呈现母亲节图片,引导学生观察画面内容,如:Who are they? What is the girl doing? Why is she giving flowers to her mother? Is it her mother’s birthday?...引出Mother‘s Day之后,让学生跟读词汇。

英语教学案例2一、语言技能目标第一层次:1.能够听懂、会说衣服词汇cap,coat,shoes,sweater,jacket,gloves,trousers;能在四线三格中基本规范地抄写单词,并尝试借助拼读规律记忆单词。

2.能够听懂、会说用来介绍复数衣服的功能句:These are ...3.能够听懂、会说用来询问自己该穿什么衣服的功能句:What should I wear today?及其答语:You should wear ...,初步学会在恰当的情境中运用,并通过描摹句子来体会句子书写规范,为抄写句子和独立写句子打基础。

4.能够读懂介绍自己所在城市的季节、天气、穿衣情况以及询问对方城市相关情况的小书信;并通过替换小书信中的关键信息回信,介绍自己的上述情况,回复朋友的询问。

5.能够借助熟悉的旧单词和图片感知字母u在闭音节单词中的发音规律,并利用该规律拼出新单词的读音,进而尝试记住其写法。

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高中英语语篇教学教案模板(共6篇)第1篇:高中英语教学教案ⅠAnalyses of the studying contents: ⅡTeaching type: 21 Ⅲ.Studying aims A.Knowledge and skills: This module is to enable students to compare the education systems in and out of China.B.Procees and methods C.Emotions, attitudes and values: enable students to take a positive attitude towards life./ educate students to be open-minded to different cultures./educate students to be ready to help those who are in need./ D.cultural awarene: learn something more about …culture.E.Keys and difficulties: 1.Words: 2.Expreions: 3.Sentence patterns: Ⅳ.Design Principles: e deduction( 推导) and induction(归纳) to help master the usage of phrases and sentence patterns.2.Let the students read the paage so as to practice their reading skills, such as scanning, skimming and fast reading.3. Enable the students to be aware of the importance of / take a positive attitude towards … e task-based approach to involve all students in every activity.ⅤTime allocation: Ⅵ.Something about the student s: Ⅶ.Teaching methods: 1.Question-and-answer activity teaching method 2.free discuion 3.pair/group work---cooperative learning 4.individual work Ⅷ.Teaching aids: 1.a tape recorder 2.multimedia 3.the blackboard 4.the projector and some slides Ⅸ.Studying strategies:2.cognitive strategy(认知) 3municative strategy(交流) 4.aociation strategy(联想) 5.induction and deduction Ⅹ.Teaching procedures: Step one: Revision and lead-in.1 2Step two: New leon ---Reading A.Pre-reading1.Show the students some p ictures about … and let them know/ gue…2.Work in pairs and discu the following questions : B.While reading1.Skim the paage and discu the general idea of the whole paage.(discu the general ofeach paragraph)2.Read the text carefully and try to answer the following questions:3.Read the text again and fill in the following form:4.Listen to the tape and imitate its pronunciation.5.Read the paage aloud.6.Enjoy the beauty of the language.C.Post-reading:1.Post-reading discuion:2.Consolidation:a.Do some exercises to consolidate the …b.Write some sentences about … 3.Extension for writing … Ⅺ Summary and Homework:1.Do…/write…2.Go over what has covered today.Ⅻ Blackboard writing: ⅩⅢ.My intension of the design第2篇:少儿英语教案模板少儿英语教案模板一、Teaching Demands and Aims(教学目标)二、Teaching important and difficult point (教学重点)1、words2、sentences3、grammars三、Teaching Aids (教具)四、Teaching procedures(教学过程) Greeting(问候) warm up(热身)Review(复习) New Leon(新课) Step One: Step Two: Step Three: Follow up(叮咛)五、Homework(作业布置)作业的布置一、书面作业1、每节课后教师可适当选择课后习题(书本或课外参考书)及字母作业。

2、低年纪的孩子适合听磁带读课文、画图、连线、写字母等简单作业;每学期两次测试:半期考和期末考试。

3、高年纪的孩子要求抄单词、背单词、背课文等书面作业;每节课前可做适当的听写练习;每个月可做适当的单元测试;期间两次大考:半期考和期末考。

二、磁带作业1、适时布置(条件允许可每周一次):将本周学习的内容录进磁带,下周上交。

2、录制要求:首先让学生和老师打招呼,接着报朗诵单元,然后录作业内容,最后与老师说再见。

(如:Hello! Amanda.I am Go go.This is Unit 11……… Goodbye! Amanda!)3、听音修正:(1)书面记录:边听边把学生的错音登记在学生手册上。

(2)修正过程:A:打招呼,先表扬肯定,后提出错误,注意错音的跟读 B:说悄悄话,增进师生感情交流 C:提出问题。

D:结束Say:“ Good bye! ”三、电话教学1、时间安排:每月两次的电话教学,每生教学时间不超过8分钟。

2、教学内容:(1)本周学习单词及课文的朗诵。

(2)词句的翻译。

(3)疑难解答。

(4)家长的经验交流。

第3篇:高中数学双语教学教案高中数学双语教学教案【篇1:中学数学维汉双语教学中的问题与对策】中学数学维汉双语教学中的问题与对策【摘要】新疆针对少数民族学生的民汉“双语”教学是新疆基础教育的特色,同时对“双语”教师的培训也是目前的重点研究课题【1】。

为了进一步促进边疆少数民族地区中学数学维汉双语教学工作的改进和完善,本文采用经验总结、实地调研和访谈等方法,对新疆伊犁州察布查尔锡伯自治县第三中学的现状、数学维汉双语教学中的问题进行了分析与思考,并提出了解决问题的对策。

【关键词】中学;数学;维汉双语教学大力开展新疆少数民族双语教学,是全面提高少数民族教育质量,推动少数民族教育事业全面发展的需要,也是历史发展的必然。

新疆是一个多民族聚居的地区,大力开展对少数民族的双语教学是新疆政治稳定、经济繁荣的必由之路。

新疆最有代表的少数民族是维吾尔族,维汉“双语”是针对维吾尔族学生使用母语和汉语组织教学的一种教学形式。

“双语”是我【篇2:伽师县双语高中数学组听课总结】综上,我们对这次听课情况还是比较满意,各位老师基本都能胜任教学工作,也基本都能按照学校的规定来进行教学工作,仅马伊萨合尼木老师没有教案进行上课。

【篇3:《函数的概念》的教学设计】《函数的概念》的教学设计浙江省义乌市第三中学陈向阳【教材分析】本节课选自《普通高中课程标准实验教科书数学Ⅰ必修本(a版)》的第一章1.2.1函数的概念。

函数是中学数学中最重要的基本概念之一,它贯穿在中学代数的始终,从初一字母表示数开始引进了变量,使数学从静止的数的计算变成量的变化,而且变量之间也是相互联系、相互依存、相互制约的,变量间的这种依存性就引出了函数。

在初中已初步探讨了函数概念、函数关系的表示法以及函数图象的绘制。

到了高一再次学习函数,是对函数概念的再认识,是利用集合与对应的思想来理解函数的定义,从而加深对函数概念的理解。

函数与数学中的其他知识紧密联系,与方程、不等式等知识都互相关联、互相转化。

函数的学习也是今后继续研究数学的基础。

在中学不仅学习函数的概念、性质、图象等知识,尤为重要的是函数的思想要更广泛地渗透到数学研究的全过程。

函数是中学数学的主体内容,起着承上启下的作用。

函数又是初等数学和高等数学衔接的枢纽,特别在应用意识日益加深的今天,函数的实质是揭示了客观世界中量的相互依存又互有制约的关系。

因此对函数概念的再认识,既有着不可替代的重要位置,又有着重要的现实意义。

本节的内容较多,分二课时。

本课时的内容为:函数的概念、函数的三要素、简单函数的定义域及值域的求法、区间表示等。

(第二课时内容为:函数概念的复习、较复杂函数的定义域及值域的求法、分段函数、函数图象等)【学情分析】学生在学习本节内容之前,已经在初中学习过函数的概念,并且知道可以用函数描述变量之间的依赖关系。

然而,函数概念本身的表述较为抽象,学生对于动态与静态的认识尚为薄弱,对函数概念的本质缺乏一定的认识,对进一步学习函数的图象与性质造成了一定的难度。

初中是用运动变化的观点对函数进行定义,虽然这种定义较为直观,但并未完全揭示出函数概念的本质。

例如,对于函数 ?1,当x是有理数时如果用运动变化的观点去看它,就不好解释,显得牵强。

但f(x)?? ?0,当x 是无理数时如果用集合与对应的观点来解释,就十分自然。

因此,用集合与对应的思想来理解函数,对函数概念的再认识,就很有必要。

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