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人教版高中英语必修4A taste of English Humor说课稿3篇
Then I would ask them to think of a funny English or Chinese and tell it to partners. While telling stories, they can use expressions and some acting to help make the story funny. 5 minutes would be given to do this.Those stories they told there will be the material for their writing. Soletting them tell it at first is helpful. And they can make a difference between telling a funny story and writing it down. Generally speaking, it is difficult forstudents to write well because they don’t know what to write and how to write. Asking them to tell their own stories at first can help them come up with what to write.After their telling, I would invite someone to share his/her story with all of us and I would write it down on the blackboard.This example story would be used as a sample to illustrate the format of funny story. Different from a story from teacher or textbook, a story from students can obviously become a interesting material to draw students’ attention.Then I would ask the whole class to put this story into several parts. It might be a little bit difficult for them. So I would ask them to find out whether all the sentences are necessary. After delete some sentences, there are 6 sentences left behind. Then they can easily put them into three parts. After interaction with students, I would teach them the right terms for each part and conclude the format of funny story.This step is the key and difficult point in my lesson. So I mainly usetask-based teaching method in this part and the task for students was divided into several stages. With the separated difficult level, students can find there are usually three parts in writing. They can also learn to write without the unnecessary parts in the process of analyzing. And then I wouldn’t rush to tell them the right terms to them directly. Instead, I would ask them to name them by their own. A confused mind is better for acquiring knowledge.While-writing:Then I would give students 7 minutes to write down this story, without other requirements.With all the preparations in pre-writing, students’ difficulties were cleared. So it would be much easier for them to write down the story within 7 minutes. There are no other requirements because students’ first writing is actually a drafting. It would be revise and edit several times later. Writing, as a skill
人教版高中英语必修3Canada-the true north说课稿4篇
Good afternoon, teachers, It’s my great pleasure to be here sharing my lesson with you.The content of my lesson is Senior English Book 3 Unit 5 Canada —— “The true North”.I’ll be ready to begin this lesson from five parts. Analysis of the teaching material,the teaching methods,the studying methods, the teaching procedure,and Blackboard design.First, let me talk about the teaching material.Part 1 Teaching Material:This unit is about the introduction of Canada. By studying of this unit,we’ll enable the students to learn the geography, population, main cities, and natural beauty, natural resources of Canada. Through the training of the unit, it also requires students to learn some Language skills such as the expressions of position and emotions.So it plays an important part in the English teaching in this book.After studying the teaching material and analyzing the rule of children’s growing of mind,I think the teaching aims are the followings:1.Knowledge objects:(1) make the students learn some new words and phrases(2) make the students understand the content of the lesson.2.Ability objects:(1)To develop the Ss’ abilities of listening, speaking, reading and writing. Especially reading and speaking ability.(2) learn to talk about the characters of Canada in English(3)To train the Ss’ ability of working in pairs.3.Emotion objects:(1)Enable students to understand the characters of Canada..(2)Stimulate Ss to work hard to make China stronger.Part 2 Teaching Methods:I think helping students learn to master new words and phrases and improve the students’ reading and speaking ability is import and the difficult.According to the analysis of the teaching material and the import points and the difficult points,I will use the following teaching methods : question-guiding approach; fast-reading and careful reading; multi-media teaching methods; discussion
人教版高中英语必修4Women of achievement说课稿4篇
Good morning, distinguished judges:It’s my honor to talk about my teaching ideas with you. Today my topic is Women of Achievement. My presentation consists of six parts: the analysis of teaching material and student, teaching aims, key and difficult points, teaching and studying method, teaching procedures and blackboard design.First, let’s focus on the analysis of teaching material. This lesson is from New Senior English for China Student’s Book 4 Unit 1, the reading part. The main topic of the passage is the introduction of a student of Africanwildlife. After this lesson, the students will learn more information about her studying chimps in Africa, and their reading and speaking abilities can be developed as well.The next part is the analysis of students. My students are in senior high students. They have learnt English for many years, they’ve known many words and sentences, but their speaking and reading abilities are still not very good. So I will practice their speaking and reading abilities through different exercises.According to the New Standard Curriculum and the present situation, I set the teaching aims as follows: firstly, knowledge aims. Students can grasp some new words, such as worthwhile, move off. Moreover, students can understand the content of the passage and get familiar with the topic of studying chimps in wildlife. Secondly, ability aims. Students can use reading strategies such as skimming and scanning in reading process. Thirdly, emotional aims. Students can have the awareness of protecting animals and care about animals.Based on the above analysis, the key point of this lesson is to get the main idea and the detailed information from the passage; the difficult point is to talk about the wildlife protection and use reading strategies.
人教版高中英语必修3Festivals around the World说课稿3篇
Teaching plan for Unit 1 book3Good morning, teachers. It’s my great pleasure to be here because I can share my lesson with you and I can learn a lot from it. I’ll begin my lesson from the following four parts， the teaching material, the teaching methods, the studying methods and the teaching procedure.Firstly, let me talk about the teaching material. The content of my lesson is the reading passage festivals and celebrations of Unit 1 Festivals around the world. This passage is about festivals and celebrations. By studying this passage, we’ll enable the students to know that festivals exit everywhere, and many of festivals in different countries celebrate similar ideas. As we all know, the reading passage is the center of each unit. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.After studying the teaching material, I think the teaching aims are as the followings:1. Knowledge aims:(1) The Ss can master the usage of the important words andexpressions.(2)The Ss can use the __________________ (grammar) in the proper situation.Make students know about the festivals all over the world and the detail of the festivals, such as origin, content, and the date of the holiday festivals.2. Ability aims:(1) Students can talk about festivals and celebrations in English(2) To improve the student’s reading ability, especially their skimming and scanning ability.3. Emotion aims:Make the Ss know about the foreign festivals, and respect other countries’ custom.Next, let’s come to the important points and the difficult points.The important point is how to make the Ss understand the text better and the difficult point is how can they talk about it. secondly， Teaching Methods:1. task-based Language Teaching2. Computer assisted language teaching.3. question-and–answer methodThirdly， Studying Methods:
人教版高中英语必修4Theme parks说课稿3篇
The oldest and the most popular park in the worldenjoy the exciting activities thereget close to the life-size cartoon characters like Mickey Mouse and Donald Duck Step 3 Pre-reading1.What do you suppose a theme park is ?2.What do you think you can see in a theme park?(1.It is a kind of amusement park which has a certain theme – that the whole park is based on. 2.buildings, castles, statues, rare animals and birds, and so on.) Step 4 Reading ----- Theme Parks –---- Fun and More Than Fun1.Predict : Read the title and the pictures on P. 34 and PredictWhat is the meaning of the title “Theme Park – Fun and more than fun”?(The title means that theme parks are fun to visit, but that they can also be educational and can offer useful information.)2.Skimming Fast read and answer:What activities can we take in a theme park?Amusement park: Bumper car Merry-go-round slide bungee jumping Free-fall rides Horror films Pirate ship Ferris wheel roller coaster3.Scanning Read again and you will find various theme parks are mentioned in the passage . Then what are they ?Theme parks: Sports theme park History theme park Culture theme park Marine or Ocean theme Park Future park Science theme park Disneyland4.Careful reading and find the main idea of each paragraph:THEME PARKS---- entertaining/ educationalPara.1 Traditional parks are places to go for relaxation and to have time away from our busy lives.Para.2 Theme parks are different They’re large and full of things to do, see and buy.Para.3 Theme parks are built around a single idea or theme. One example is a sports park.Para.4 Another kind of theme park is historical more and cultural and can be educational.Para.5 Disneylandwas the first theme park. It is based on the fantasy life and characters of Disney’s films.Para.6 Some examples of educational theme parks include sea world parks and science parks.
人教版高中英语必修3Healthy Eating说课稿4篇
Language learning needs a context, which can help the learners to understand the language and then can product comprehensible output, so computer has the advantages to make the materials attractive.Part 3 Learning MethodsTask-based, self-dependent and cooperative learningPart 4 Teaching ProcedureStep One Lead-in“Interest is the best teacher.” Therefore, at the very beginning of the class, I should spark the students’ mind to focus on the centre topic “the band”. I’ll show some pictures of food to attract their attention and then bring some questions.Question:What kind of food they like?What should go into a good meal?The answers must relate to the diet. After this, the students will be eager to know something about a balance diet and this is the very time to naturally lead the class into Step 2Step 2 Reading for information: skimming and scanning In this step, I use Task-based Language Teaching method, which can give students a clear and specific purpose while skimming and scanning the context.Task 1 General ideaThe students will be asked to just glance at the title and the pictures of the passage, and then guess what they will read in the text. And they’ll be divided into groups of four to have a discussion.The purpose is to inspire the students to read actively, not passively. In addition, the task is to develop the students’ reading skill by making prediction and to encourage the students to express their thoughts in English and cooperate with each other.Task 2 Main idea of each paragraphCooperative learning can raise the students’ interest and create an atmosphere of achievement. Based on this theory, I divide the whole class into 4 groups to skim the whole text and get the main idea of each paragraph.
人教版高中英语必修4Working The Land说课稿3篇
Knowledge objectives:(1) to make Ss grasp the usage of words, expressions and sentence structures: statistics, struggle, thanks to, rid of, some patterns for persuasion, the “ing” form as subject and object;(2)to use learnt knowledge to persuade sb.Ability objectives:(1) to develop Ss’ reading skills(skimming, scanning, word guessing);(2) to improve Ss’ speaking, communicating and cooperating skills.Emotional objectives:to make Ss know the contribution of Yuan,and learn his spirit and his simple life time.Teaching important and difficult points:(1) some words, expressions and sentence structures mentioned above;(2)the content of the text;(3)training their reading and speaking skills.Teaching methods: CLT, TBLT,QT.Learning strategies: CLS, QLS, TBLS.Teaching procedures:Step 1 lead-in: (1) teacher plays a piece of recent news from CCTV about the harvest of the super hybrid rice, and ask students whether they know Yuan or not, and talk about him and his contribution.(2)Brain storm: let Ss describe Yuan in their minds including his appearance, his living condition and so on.Step 2 fast reading tasks:(1)teacher introduces Yuan and super hybrid rice(2)make Ss read the text as fast as possible with questions. Such as: what’s the general ideaof this passage? What’s Yuan’ dream? (skimming and scanning skill)Step 3 intensive reading tasks(1)let Ss read the text silently, find topic sentence of each paragraph and draw the difficult sentences and the knowledge what they don’t understand.(words guessing)(2)teacher and Ss talk about the important words, expressions and sentences together, and ask Ss to retell the content of the text.(summarizing and paraphrasing)(3)teacher summarize this part.(4) read again following the courseware.
人教版高中英语必修3The million pound bank note说课稿3篇
在接下来的细读环节，我套用了高考对阅读理解的考查方式设置了5个问题，分别为三个推理判断题，一个细节题和一个主旨大意题。学生需要对文章的内容进行分析、归纳、推理、猜测等高级思维活动才能做出正确的回答。【设计意图】这一过程是对学生进行细读的训练，培养学生获取特定信息和挖掘文章深层次信息的能力。第三环节:Intensive-reading (精读) 15′第三个环节精读，既是最重要的环节，也是突破本课重难点的关键。首先，让学生思考剧本中人物看到百万英镑前后的态度发生了怎样的变化。其次，让学生仔细阅读文章，找出可以表现人物态度变化的具体的语言和动作。最后，让学生总结人物的态度发生变化的根本原因是什么，从而引出Money Talks, 供学生思考。【设计意图】通过一系列的活动培养学生学习从人物的语言和动作探究人物的心理，使学生进一步体会戏剧语言的魅力，从而对文章背后所反映的社会问题进行思考，也为下一步的讨论环节做好铺垫。
人教版高中英语必修5First aid说课稿6篇
In this class, I have 3 teaching aims, that is, knowledge aims, ability aims and emotion aims.1) Knowledge-Teach students new words and expressions, such as temporary, bleed,sprain choke, first aid, fall ill and so on.-Enable students to have a better understanding for some basic knowledge of first aid.2) Ability-Train students’ speaking, reading and writing abilities by different teaching activities, such as skimming, comprehending, team work, role play, retelling and writing.-Develop students’ reading strategy on how to move general idea to specific information.3) Emotion-Promote students’ awareness of giving first aid.- Cultivate students’ creativities.Then let’s come to my teaching methods and activities.III. Teaching methods and activities:To achieve different teaching aims, various kinds of teaching methods and activities will be adopted throughout this period, such as TBL (task-based learning), skimming, team work, brainstorm and others, which can offer students opportunities to fulfill tasks in which they can use language to achieve a specific outcome.IV. Teaching aids:Computer and blackboardV. Teaching important points:1) Make students have a clear mind for the structure of the text.2) Help students understand the theme of the text.VI. Teaching difficulties:1) So many new words may affect students’ understanding.2) How to get students to know about the functions of the skin and thecauses, characteristics and treatments for different degree burns,and the knowledge about giving first aid. VII. Blackboard design:
人教版高中英语必修5Great scientists说课稿4篇
通过写文章梗概，培养学生综合运用语言的能力，学习用恰当的英语描述科学家的故事。这是本课的教学难点。教师可以使用完形填空的方式来帮助学生整理语篇，从而来降低难度。本课的教学重点的突破方法是：在阅读前，让学生初步了解得出科学观点所需要的基本程序，从而轻松而自然地导入文章的阅读；在阅读过程中，由易到难设计快速阅读和精读的问题，层层推进各种阅读活动，让学生对阅读内容从整体感知到细节理解，最后深层读懂整篇文章，同时加强阅读策略的指导，让每个学生都主动参与课堂教学活动，最终达到提高阅读能力的目的。Step 4 Post-readingGroup Activities四人小组共同合作，在老师的适当指导下，就以下2个问题展开讨论，让学生就所知、所学、所感和所想融入话题，然后抽若干同学代表作小组发言。1. What do you think about John Snow, and what should we learn from him?2. Cholera was 19th century disease, which two diseases are similar to cholera today? Why?
人教版高中英语必修5Life in the Future说课稿5篇
Good afternoon, everyone. It’s my great pleasure to be here sharing my lesson with you. The content of my lesson is Senior English for China Book5 Unit 3 Life in the Future. I’ll be ready to begin this lesson from six parts: Analysis of the teaching material, Analysis of the students, Teaching aims and important and difficult points, Teaching methods and aids, Teaching procedures, and Blackboard design. First, let me talk about the teaching material.Part 1 Analysis of the Teaching Material:This unit is about what human beings’ life will be like in about one thousand years. By studying of this unit, we’ll Enable the students to know the changes in humans’ life and some new inventions bringing about the change and develop the interest in science. This lesson plays an important part in the English teaching in this unit. This is an important lesson in Book Five. From this lesson, it starts asking the Ss to grasp contents of each passage. Therefore, this lesson is in the important position of the teaching material. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.Part 2 Analysis of the SsAs Senior2 Ss, they are at different levels of English fluency, some of them have lost interest in English. So during the lesson, I arrange a variety of activities to let all of them join in to attract their interest and let them be confident and taste the joy of success.
人教版高中英语必修5Making the news说课稿4篇
今天我们来介绍一下必修五第四单元的授课方式。这个单元的题目是Making the news。应该是学生比较感兴趣的话题，学生往往对新闻工作充满好奇，所以我们可以利用这个机会多设计一些师生互动和学生互动，来激发起学习的积极性，提高学习效率。同时我们可以利用这个单元不仅帮助学生掌握语言知识，培养语言能力，同时让其了解新闻工作的重要性，培养起社会智能感。这个单元分为六个课时，它的教学目标是这样的：语言目标是掌握词汇表中的常用单词和短语，掌握倒装句的一些基本用法。 技能目标是能初步掌握约会的基本句型并在真实的场景下正确运用。新闻报道类文章的写作技能。采访的基本规范和沟通技能。情感目标是对新闻报道的客观性和真实性有更好的理解。对新闻记者的职业有更深入的了解，并能体会其工作的重要性。下面我们来介绍一下第一课时的授课方式，第一课的教学目标是这样的第一课时的教学目标语言目标:单词：Occupation, journalist, editor, photographer, curious, personality, enthusiasm
人教版高中英语必修5The United Kingdom说课稿4篇
Teaching Aims:Knowledge 1. Get the students to learn the useful new words and expressions in this section. Aims:2. Let the students learn about how the UK was formed and the four groups of invaders.1. Develop students’ reading ability and let them learn different Ability reading skills. Aims:2. Enable students to learn to talk about the United Kingdom and the Union Jack Emotional 1. Let students know more about the UK2. Develop students’ sense of cooperative learning Aims:Teaching Important Points:1. Let the students learn about the countries of the United Kingdom and the Union Jack2. Get the students to read the passage and know about how the UK was formed and the four groups of invaders.3. Have the students learn different reading skills.Teaching Difficult Ponts:1. Develop students’ reading ability.2. Enable students to talk about the United Kingdom and the Union Jack.3. Let students learn how the UK was formed geographically and historically.Teaching Methods:Showing pictures, asking, exercising, listening, reading etc.Teaching Aids:A computer,a projector and a blackboard.Teaching Procedures: 1) Show a map of the world, ask students the following questions:Where is the UK?What’s the full name of the UK?2) Ask the students work in pairs to do the quiz on Page 9.Do you want to test how many things you know about the United Kingdom? Let’s have a small test.Using the map on P9, students answer the following questions:?How many countries does the UK consist of? What are they??England is divided into three main areas. Do you know what they are? 1) Scanning (10Minutes )Let the students hold the questions asked in pre-reading and read the passagequickly and then let them do the following exercise.Join lines to the right answer.
《归园田居(其一)》说课稿 2021-2022学年统编版高中语文必修上册
运用比较法，让学生讨论比较字词改换后与原诗在表达效果上有何异同，然后教师和同学们共同总结出原诗中的画线字词主要运用了比喻和拟人等修辞手法，显得既生动又含蓄，富有意境美，而改后的字词显得直白而又重复。通过文本研读部分的学习，学生对诗歌内容有了较深入的理解，为了使学生拓宽知识面，加强思想价值观的教育引导，在拓展练习部分我设置了一个探究性的问题，让学生谈谈如何看待陶渊明归隐的问题，我采用合作探究法，让学生分组互动讨论、自由发言。教师针对学生的发言，及时地加以点拨：陶渊明不与统治者合作，令人敬佩；歌唱田园风光，令人赞叹；归隐田园有独善其身，消极避世因素，这一点自然不应当苛求古人。
《短歌行》《归园田居》说课稿 2021-2022学年统编版高中语文必修上册
3. 教学任务二：PPT子任务一、二、三感悟诗情：那么为什么不能轻易对诗人诗歌进行删减呢？除了诗歌语言及内容方面的影响外，还有重要的一点就是：感情。情感是诗歌的尺度，而非长短。下面将从知人论世的角度再读诗歌。重点赏析曹操的“忧”与“解”和陶渊明的“误”与“归”。通过编写诗人年谱的方式，呈现诗人的各个人生阶段的经历和当时的时代背景，让诗人回到历史现场，让自己代入诗人境遇，以意逆志。通过查阅资料和编写年谱，可以了解到：曹操既能横槊，又能赋诗，如曹丕在《典论·自叙》中所说：“上（曹操）雅好诗文书籍，虽在军旅，手不释卷。”《短歌行》中多用典故和善用比兴或许就源于此。其次，曹操虽出身仕宦，但门第不算高贵，这样的家庭地位让他有着出人头地、建功立业的迫切愿望，因此，“唯才是举”是曹操出于现实的理性选择。再次，曹操写《短歌行》的确切时间已难考证，如取赤壁大战前的说法，曹操已五十四岁，来日无多的紧迫感、贤才归附的愿望自然尤为强烈。
人教版高中语文必修1《园丁赞歌：记叙要选好角度》说课稿
在学习语文经验交流会上，季老师举着我的《采花酿蜜集》，对大家说：“人日积月累辛勤采撷，终于酿出了知识的琼浆。大家都应这样，争做知识的富户啊！”老师有点激动，低低地爬在鼻梁上的眼镜突然滑了下来，正好落在那集子上。大家笑了，季老师也笑了。就这样，我的写作有了进步，好几篇作文登上了班级《学作园地》。从此，我爱上了语文，更深深地爱上了季老师。高中升学考前那个星期天的夜晚，季老师旧病复发，累倒了。半夜，老师们把他送进了公社卫生院。第二天，同学们都悄悄去卫生院看望。我去的时候，季老师正在挂滴流。可是，下午季老师又出现在讲台上，他脸色憔悴，声音沙哑……我手捧《采花酿蜜集》走近季老师，思绪的溪水从远方流了回来。“季老师”，我把本子捧给老师，深情地叫了声。季老师接过本子，仔细翻阅着，脸上露出了笑容，像是闻到了郁郁芳香的蜜汁似的。“进步不小呀！”季老师说着，又在本子扉页上题了
人教版高中语文必修2《归园田居（其一）》说课稿2篇
我还运用多媒体投影幻灯片给学生设置两组相互对照的选项，让同学们根据幻灯片选择：你赞同每组中那一种价值取向？一组是功名、进取、高官、厚禄与自然、隐逸、本性、自由。另一组是科学、发展、强大、集中与诗意、和谐、柔弱、个体。经过合作探究，讨论解答，学生结合陶渊明的归隐对第一组讨论探究的应该比较容易，而对第二组的理解探究会出现一定的难度，教师可以就学生的情感价值观方面适当的给予点拨引导：幻灯片上面的第二组文字通过对比，给我们提供了两种价值取向，你是要通过科学、发展、强大和集中来实现遨游太空等童话，那就势必会令我们放弃了诗意的童话，只关注工业的发展，城市面积的扩大，乡村田园必将减少 。你还是要维护生态平衡，保护一切的多样性呢？我认为诗意永远要领导科学，梅罗和陶渊明就共同表达了八个字——诗意、和谐、柔弱和个体。你的本性在田园，当我们身心疲惫时，我们都需要一个心灵的家园，所以我希望大家无论做何选择都能够守住我们那片宁静、祥和的心灵家园。
人教版新课标小学数学一年级下册整十数加一位数和相应的减法 说课稿3篇
（四）、反馈练习1．口算：看谁算得又对又快。学生在书上做第43页的第5题，限时2分钟。学生做题，教师计时，做后集体订正，并指名说说自己是怎样做75-5，90+8这两道题的。[通过计时计算，可提高学生的自信度，通过说两题的计算过程，加强对新知的巩固程度。]2．做第43页的第6题。在这里将首先运用多媒体教学课件表现出课本上两人对话的场景（有老师3名，学生40名，45瓶矿泉水够吗？），使学生看后发表自己的意见，如果自己在此时遇到这样的问题会怎么办，并说说自己是怎样想的，会用算式表达的同学，可以列出算式来。[充分利用现代化设备为学生的思维创设情境，使学生的思维尽可能地与现实生活相联系，以生活实际中的问题来锻炼学生的思维能力，并让学生体会到生活中处处有数学。为了让学生有不同的发展，可让程度较好的学生把自己的思维过程抽象成数学算式。]
人教版新课标小学数学三年级下册两位数乘两位数的乘法（不进位）说课稿2篇
得出这样便于口算的道理，也为帮助学生探索“两位数乘两位数”的竖式计算方法埋下了伏笔。与此同时也允许学生把12用他们认为更便于计算的方法进行计算。另一种是直接用竖式计算。竖式的摆法学生肯定没问题，对于第一步如何计算也难不倒学生，关键是第二步、第三步，通过学生自己探索算法，让学生弄清第二步、第三步为什么这样写？根据学生的汇报，强调书写格式并板书，用个位上的2去乘24，乘得的积是表示48个一，积的末尾要和个位对齐；用十位上的１去乘24，乘得的积表示24个十，乘得积的末尾要和十位对齐（个位上的0省略不写）；最后把两次乘得的积相加。（这样利用迁移原理，使学生一步一步地加深对算理和算法的认识和理解，不但突出了教学重点，而且突破了教学难点。）3、教师点拨:笔算乘法时：（1）从个位乘起，先用第二个因数的个位上的数依次去乘第一个因数的每一位上的数，得数末位和第一个因数的个位对齐；
人教版新课标小学数学四年级下册将较大数改写成用万或亿作单位的数说课稿2篇
一、说教材该内容是人教版小学数学四年级第八册第四单元的最后一个内容，是在学生已经掌握了把整万、整亿数改写成用万或亿作单位的数的基础上进行教学的。通过本节课的学习，要使学生能通过独立思考、合作交流，掌握把大数目改写成用“万”或“亿”作单位的数的方法，为以后能准确、恰当地运用数目描述生活现象打下良好的基础。根据本课的内容和学生已有的知识和心理特征，我制订如下教学目标：1、掌握把较大数改写成用“万”或“亿”作单位的数的方法，并能根据要求保留一定的小数位数。2、经历将一个数改写成用“万”或“亿”作单位的数的过程，体验数据记法的多样性。3、感受数学知识的应用性。理解和掌握把较大的数改写成用“万”或“亿”作单位的小数的方法是本课的教学重点。位数不够用0补足是本节课的难点。
