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人教部編版道德與法制二年級上冊假期有收獲說課稿

  • 人教版新目標初中英語八年級下冊He said I was hard-working教案2篇

    人教版新目標初中英語八年級下冊He said I was hard-working教案2篇

    This activity introduces some new vocabulary and provide oral practice using the target language.Task 1 . Ask four students to stand in front of the class, and the teacher asks them the following questions as a reporter.1.What are you going to do when you grow up?2.What are you going to do next week?3.What are going to do after school?The students will give different answers, then ask a good student to report what they said.I am going to e a doctor.What did she say?----------She said she was going to be a doctor.I am going to have a party on Friday night.What did he say?-------He said he was going to have a party on Friday night.I am going to do my homework.What did she say ?------ She said she was going to do her homework.I am going home after school.What did she say?-----She said she was going home after school.Say In this unit we are going to learn to use words like to report what someone said.Task 2. Read the instructions. Then ask a student to read the four questions. And write the words on the Bb. Explain what soap opera is.Task 3. Ask the students to Look at the pictures, point out the TV screens in the picture. Ask one girl to read what Marcia said.What did Marcia say? She said She said she was having a surprise party for Lana on Friday night. Repeat the other pictures in the same way.Activity3. Listen and number the pictures in activity 1a.

  • 人教版新目標初中英語八年級下冊How long have you been collecting shells教案2篇

    人教版新目標初中英語八年級下冊How long have you been collecting shells教案2篇

    Step Ⅱ Show the new words on the screen and teach the new words. Read the new words to students and ask them to repeat.Step Ⅲ 3aThis activity introduces new vocabulary and provides reading practice using the target language.In this activity first look at the four pictures.T: What can you see in the pictures?Ss: Four snow globes.T: Right. There are four snow globes in the pictures. And what are they?Ss: They are a monster, two polar bears, two penguins and a birthday cake.Write these words on the blackboard: snow globe; monster; polar bear; penguin and birthday cake. Read them to the class and ask students to repeat each one. Make sure students understand each word.Use a computer to show the E-mail message on the screen and read the message to students.Get students to read the e-mail on their own, and then draw lines connecting each snow globe and its description.Correct the answers.AnswersA line should connect each snow globe picture with the words that describe it in the letter.Step Ⅳ 3bThis activity provides writing practice using the target language.First review Activity 2a on Page 47.Then ask students to complete the message according to Activity 2a.Some partial sentences are given to students. Write about one person's collection.When students work, walk around the room checking the progress and offering help as needed.When they finish, ask some students to read their messages to the class.

  • 人教版新目標初中英語八年級下冊Why don’t you get her a scarf教案

    人教版新目標初中英語八年級下冊Why don’t you get her a scarf教案

    教師帶領學生復習有關描述寵物的詞匯,采用教師提問學生回答的方進行。如:T:What animals do you think would be good pets?What animals do you think would be bad pets?What do you think are good animals for a six-year-old child?然后學生進行 pairwork 練習。Task two: 師生互動,學習探究 1、播放3a部分的錄音,引導學生一邊聽錄音,一邊跟讀。2、通過聽錄音學生回答以下問題:Why do you think pot-bellied pigs are popular?What are the advantages and disadvantages of keeping such a pet?教師對學生的回答進行及時點評。3.學習范文,學習重點短語,為下步的模仿寫作提供語言素材。T :1. )Have you ever kept a pig as a pet?Do you like pigs? St.:No.…Why don’t you like to keep a pig? St: No.They’re too dirty and lazy(Do you know in some foreign countries like Hollyland, Australia,pigs are the most popular pet.there’s a kind of pig.(圖)it has an interesting name? it ‘s called a pot-bellied pig.) Now,let’s learn an article about this kind of interesting pet.2.)play the tapeSt.:Listen and repeat3.)show some Qs on computer(本子St.: read silently,then answerthe Qs(本子)4.)Ask ss. Close book and retell this passage.(what is a pot-bellied pig? Is it a good or bad pet? ) St.: retell it to each other“A pot –bellied pig is a popular pet now…”5.read the article together.St.:.practice reading

  • 人教版新目標初中英語八年級下冊Would you mind turning down the music教案

    人教版新目標初中英語八年級下冊Would you mind turning down the music教案

    Step 4. Group work (4)1. Ask a pair of students to read the dialogue. Say, This activity provides speaking, listening and writing practice using the target language.2. Ask students to complete the work in groups.3. Check the answers with the whole class. 4. Explain some of the language points. Step 5. Word review (Self check 1)1. Ask students to read the words and the phrases given. 2. Fill in the blanks with proper forms of these words to complete the sentences. 3. Check the answers with the whole class. Homework:Do activity 2 on page 57 after class. Period 6Teaching aims: 1. Teach vocabulary words and the useful expressions. 2. Enable the students to learn etiquette in different culture. 3. Help the students learn how to behave politely in public places and in daily life. Teaching procedures:Step 1. RevisionHelp students to review the function of making requests through a free talk. Then lead them to the topic of etiquette. Explain the meaning of etiquette. Or, ask students to look it up in the dictionary. Step 2. Pre-reading (Section 1)1. Ask students to read the picture and make a list with their partner about how many rules of etiquette can be seen being broken.

  • 人教版新目標初中英語七年級下冊How was your weekend教案2篇

    人教版新目標初中英語七年級下冊How was your weekend教案2篇

    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教學步驟、時間 教師活動 學生活動 媒體應用Step 1Free talk 3’ Ask some questions like:Who’s on duty today?What’s the weather like? Answer and talk about something.讓同學們回答下列問題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此時教師用漢語問:“在周末期間問你干了什么?這句話用英語這么回答?Let the students guess.At last the teacher give them right answer3. What did you do over the weekend?(板書、學習)

  • 人教版新目標初中英語七年級下冊What does he look like教案3篇

    人教版新目標初中英語七年級下冊What does he look like教案3篇

    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: 設計理想中的人類Step one: 設計理想中的人類的外貌。把全班同學分成若干小組,學生可以邊說邊在紙上畫出他們的模樣。Step two: 設計理想中人類的性格。學生們可以把那些能描述性格的單詞寫在圖畫的旁邊。Step three: 每組選出一名同學,其他同組同學提問,他作簡單回答,并說明原因。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: 挑戰(zhàn)性活動調查性格是天生的還是后天形成的,讓每個同學回家去調查一下自己成長過程中性格是否有變化,具體是怎樣的,為什么會這樣? 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.

  • 人教版新目標初中英語七年級下冊Don’t eat in class教案2篇

    人教版新目標初中英語七年級下冊Don’t eat in class教案2篇

    Don’t fight. =You can’t fight. (板書,教讀)教師把這些句子板書在黑板上,并請學生大聲整齊地讀祈使句和“can’t”句型,并讓學生注意兩種句型表達形式的不同和轉換,“Don’t …=You can’t…”;并對學生說:These are our school rules. (板書,教讀) You can’t break the school rules. Don’t break the school rules.(板書,教讀)步驟3 :Practicea. T: Now, each of the students is breaking one of these rules.Please finish 1a.學生看圖,完成1a的內容,檢查答案并大聲朗讀校規(guī)。b. 聽錄音,完成1b,選出四位學生都違反了哪條校規(guī);聽之前,學生要讀會英文名。c. 請兩位學生朗讀1c部分的句型;要求學生兩人一組對話表演,SA扮演外校轉來新生,SB告知本校校規(guī)。(學生可經(jīng)過討論,多說出他們想到的校規(guī),不必只限于書上;教師應給予幫助)2) 第二課時(2a~4)步驟1 :warming up of revisionT: What are the rules at your school?學生使用“can”或祈使句表達各條校規(guī);其中老師可引出“eat in the cafeteria outside”的表達。步驟2 :Practicea.T: Christina is an exchange student. She doesn’t know the rules. Let’s listen, what activities they’re talking about?學生聽第一遍時,完成2a;第二遍時,完成2b;b. 請學生領讀2c部分,看著2a完成的表格,理解2c活動的要求;分成小組針對2a進行問答;

  • 人教版新目標初中英語七年級下冊I want to be an actor教案2篇

    人教版新目標初中英語七年級下冊I want to be an actor教案2篇

    三、教學建議第一課時: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.

  • 人教版新目標初中英語七年級下冊It’s raining教案2篇

    人教版新目標初中英語七年級下冊It’s raining教案2篇

    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教學反思:新課程標準中強調學生在課堂中的主體地位,在綜合課中他們的主體地位就更加突出。在各個活動中給不同程度的學生不同層次的任務,讓各層面的學生都有表現(xiàn)發(fā)揮的機會,從而產(chǎn)生對英語的興趣。使用照片圖片多媒體來輔助教學,效果更好。同時讓了解其他國家風景,風俗的同學介紹ideal place,增加學生的背景知知識,實現(xiàn)跨學科交流的目的。教案點評:采用任務型教學模式,在各個活動中給不同程度的學生不同層次的任務,讓各層面的學生都有表現(xiàn)發(fā)揮的機會,從而產(chǎn)生對英語的興趣。使用照片圖片多媒體來輔助教學,效果更好。讓了解其他國家風景,風俗的同學介紹ideal place,增加學生的背景知識,實現(xiàn)跨學科交流的目的。

  • 人教版新目標初中英語七年級下冊Where is your pen pal from教案

    人教版新目標初中英語七年級下冊Where is your pen pal from教案

    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.教學反思:通過本單元的學習,學生基本可以談論人們的國籍,居住城市及其所說的語言,通過書信方式去介紹自己并尋找筆友。但在涉及到國外的一些城市時,學生對這方面的知識相對欠缺,能介紹的城市并不多,也反應出學生課前預習不充分,這跟學生學習條件也有關,大多數(shù)學生無法通過網(wǎng)絡獲取所需信息。因此,在以后的教學中要多指導學生通過計算機網(wǎng)絡獲取信息,拓寬知識面。

  • 人教版新目標初中英語七年級下冊Where did you go on vacation教案

    人教版新目標初中英語七年級下冊Where did you go on vacation教案

    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語法:一般過去時特殊疑問句、一般疑問句及肯、否定回答。課時安排4課時第一課時:Section A:la,1b,lc,2a,2b,2c 第二課時:Section A:3a,3b,4第三課時:Section B:1,2a,2b,2c第四課時:Section B:3a,3b,3c,4 and Self Check第一課時教學目標掌握描寫假期生活的形容詞。假期里自己所做事情的簡單表達。談論假期做的事情及當時情況。談論假期時旅游的天氣,旅游者以及食物等。教學過程一、導入播放一首英文歌曲:Let’s travel 說明:通過讓學生聽節(jié)奏歡快迪斯尼英語歌曲Let’s travel.引入本節(jié)課談論的話題vacation and travel. 讓歌曲使學生的思維活躍,增強課堂氣氛,激發(fā)學生提高學習英語的興趣。T:How is the trip ?Ss : It’s pretty good/ happy/exciting /relaxing/busy/dangerous/ fantastic說明:這個問題是為了操練形容詞。建議讓多個Ss作答。鼓勵他們用不同的形容詞。上述個別形容詞本應在第二課時中出現(xiàn),但可以在warming-up中第一次非正式出現(xiàn)。這些形容詞也可在老師的評價語中適時出現(xiàn),以加深學生對詞匯的印象。

  • 人教版新目標初中英語七年級下冊Why do you like koalas教案2篇

    人教版新目標初中英語七年級下冊Why do you like koalas教案2篇

    單元整體說明(一)單元教材分析本單元的核心話題是描述動物和表達個人喜好,以及句式why do you like…? Because…。這也是本單元的教學重點。通過本單元的學習,學生應能較流利地運用所學詞匯和句型描述動物,表達個人喜好。(二)單元知識結構1.詞匯動物名稱 tiger, elephant, koala, dolphin, etc.詞匯描述性形容詞: smart, cute, ugly, clever, shy, etc.國家名: 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)單元整體目標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)單元教學重難點一覽(五)單元學情分析學生此前已經(jīng)學過由why, where, what 引導的特殊疑問句句型,具有了學習本單元知識的認知前提。形形色色的動物能激發(fā)學生的好奇心,產(chǎn)生了解它們的欲望,這有利于本單元知識的教學和學生學習興趣的培養(yǎng)。

  • 人教版新目標初中英語八年級下冊What should I do教案2篇

    人教版新目標初中英語八年級下冊What should I do教案2篇

    說明:在幫Li Lei提建議的同時,教育學生如何學好英語。第三課時教學目標1. 語言目標:a) 詞匯: Original, in style, haircut, the same as.b) 語言結構:My friend wears the same clothes and has the same haircut as I do.2. 能力目標:大多數(shù)學生能夠談論自己喜歡哪種服裝,提高查找信息的能力。3. 情感目標:學會如何與朋友相處,要有自己對時尚的看法。教學重點掌握一些重要詞匯。教學難點學會談論問題,并能提出書面建議?!艚虒W突破首先針對Erin的問題,提出個人的建議,模仿2c部分的對話展開雙人交際Pair-work;聽老師誦讀3a部分的信件,并找出LEFT OUT的問題所在;學生完成3b部分的內容,給Left Out提出書面的建議;學以口頭形式提出自己目前存在的某個問題,講給大家聽,讓同學們給自己提出一個建議,并作筆錄;學生兩、三個人分成一組,隨意性地進行口語交際,談論P14的第4部分的某個問題,相互交換意見。

  • 人教版新目標初中英語八年級下冊If you go to the party, you’ll have a great time教案2篇

    人教版新目標初中英語八年級下冊If you go to the party, you’ll have a great time教案2篇

    區(qū)分賓語從句、定于從句和狀語從句賓語從句和狀語從句,都叫做主從復合句。賓語從句主要是中考必考的,是初中階段必掌握的從句,賓語從句主要是掌握三要素,所謂賓語從句,就是賓語在主從復合句當中充當賓語的一個句子,叫做賓語從句。主句的謂語動詞是及物動詞,后面如果是詞或者是短語的話,是簡單句,如果是句子的話,肯定是賓語從句。I know that he good at English.就是賓語從句,三要素,一要素是要注意連詞,連詞一共學了三類連詞,一類連詞是that口語當中可以省略,就像剛才說的那一句,I hear he is good at English.還有疑問代詞、疑問副詞,how where when,疑問代詞、疑問副詞。還有一類連詞weather是否的意思,不是狀語從句當中的如果,這一定要和如果區(qū)分開,這是是否。I don't know if he interested at English。賓語從句要注意if是連詞。第二要素是語序,要用陳述舉語序。比如說你家有幾口人,我們都說How many people are there in you family?但是這是簡單句,一旦說成賓語從句,你可以告訴我你家有幾口人嗎?Could you tell me how many people there are in you family ?

  • 人教版新目標初中英語八年級下冊What were you doing when the UFO arrived教案2篇

    人教版新目標初中英語八年級下冊What were you doing when the UFO arrived教案2篇

    (一).知識方面: 1.培養(yǎng)學生能運用過去進行時來描述、談論過去某個時間正在發(fā)生的事情或動作的意識和能力,能就過去某個時間正在發(fā)生的動作做出正確的描述。 2.培養(yǎng)學生的想象力和角色扮演的合作能力。 3.培養(yǎng)學生講述過去發(fā)生的事情經(jīng)過的能力。能正確運用一般過去時來講述故事。 (二).技能方面: 1.本單元的語言目標是Talk about past events and tell a story(談論過去的時間和講述一個故事),圍繞這一目標,要涉及句型: What were you doing when the UFO arrived? ----I was sitting in the barber’s chair. The barber was cutting my hair. 因此必須學習standing、studying、cleaning、sleeping、cooking、making、eating、cutting、等表示地點的詞,以便為上述句型提供語言材料。2.學習過去進行時的有關知識。Was/were+現(xiàn)在分詞,是該時態(tài)的表達式。 3.在學習過程中,要區(qū)分The boy was walking down the street when the UFO landed.和While the boy was walking down the street, the UFO landed.這兩種由when和while引導的狀語從句的句型結構。注意它們的不同。

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    北師大版初中七年級數(shù)學下冊用關系式表示的變量間關系說課稿2篇

    一.說教材我今天說課的內容是義務教育課程標準北師大版七年級下冊第四單元第二節(jié)的《用關系式表示的變量間關系》。在上節(jié)課的學習中學生已通過分析表格中的數(shù)據(jù),感受到變量之間的相依關系,并用自己的語言加以描述,初步具有了有條理的思考和表達的能力,為本節(jié)的深入學習奠定了基礎。二.說教學目標本節(jié)課根據(jù)新的教學理念和學生需要掌握的知識,確立本節(jié)課的三種教學目標:知識與能力目標:根據(jù)具體情況,能用適當?shù)暮瘮?shù)表示方法刻畫簡單實際問題中變量之間的關系,能確定簡單實際問題中函數(shù)自變量的取值范圍,并會求函數(shù)值。過程與方法目標:經(jīng)歷探索某些圖形中變量之間的關系的過程,進一步體會一個變量對另一個變量的影響,發(fā)展符號感。情感態(tài)度與價值觀目標:通過研究,學習培養(yǎng)抽象思維能力和概括能力,通過對自變量和因變量關系的表達,培養(yǎng)數(shù)學建模能力,增強應用意識。

  • 五年級禮儀課教學教材教案

    五年級禮儀課教學教材教案

    一、教學目標1、讓學生懂得使用文明用語是學生應有的美德。2、讓學生知道常用的文明用語,并學會運用。3、培養(yǎng)學生使用文明用語的良好習慣。

  • 【高教版】中職數(shù)學基礎模塊上冊:3.1《函數(shù)的概念及表示法》優(yōu)秀教案

    【高教版】中職數(shù)學基礎模塊上冊:3.1《函數(shù)的概念及表示法》優(yōu)秀教案

    課程:數(shù)學課題: 3.1.1函數(shù)的概念課型:講授課課時:2課時授課班級:2015級南口班授課時間:2016年3月1日授課地點:南口校區(qū)教 學 目 標知識目標1.能用函數(shù)語言描述圖像、解析式中自變量與函數(shù)值的依賴關系; 2.會計算函數(shù)的定義域,理解值域的含義 3.會用語言表述自變量與函數(shù)值間的對應關系能力目標通過對實例的分析,培養(yǎng)學生的觀察能力,抽象概括及邏輯思維能力 通過計算函數(shù)的定義域,培養(yǎng)學生的計算能力素養(yǎng)目標函數(shù)概念的思想蘊含了很多數(shù)學思維,也滲透生活中及其他學科范圍內,通過學習使學生認同函數(shù)的抽象性。教學重 點理解函數(shù)的概念教學難 點判斷兩個函數(shù)是否相同教學方 法引導啟發(fā),講練結合教學資 源演示文稿板 書 設 計3.1函數(shù)的概念 設集合A、B為非空數(shù)集,對于確定的對 應法則f下,在集合A中取定任意一個數(shù)x, 在集合B中都有唯一確定的數(shù)f(x)與之相 對應,則稱f:A→B為集合A到集合B的一 個函數(shù). 記作:y=f(x),x∈A X叫自變量,y叫函數(shù)值,集合A叫函數(shù)的 定義域,所有函數(shù)值組成的集合叫值域。

  • 【高教版】中職數(shù)學基礎模塊上冊:5.2《弧度制》優(yōu)秀教案

    【高教版】中職數(shù)學基礎模塊上冊:5.2《弧度制》優(yōu)秀教案

    課 程數(shù)學章節(jié)內容 課程類型新課課時安排2課時指導教師 日期12月 7 日學習目標掌握用弧度表示角度的大小學習重點掌握用弧度表示角的方法學習難點弧度制和角度制的互換回顧(溫故知新)1、回顧上節(jié)課所學內容:任意角度的推廣、終邊相等的角的表示方法; 2、已經(jīng)學過角度的計量單位:度,度分秒是如何換算的; 3、圓的周長公式和扇形弧長公式。問題(順著問題找思路)1、弧度制:等于半徑長的圓弧所對的圓心角叫做__________,記作____弧度或1________。 2、正角的弧度為_____數(shù),負角的弧度為_____數(shù),零角的弧度為零。 3、由弧度的定義可知,當角α用弧度來表示,其絕對值|α|和圓弧長l與圓的半徑r有:|α|=________。 4、一個圓的周長為_____,所以一周角(360°)的弧度為_______=______(rad) 。 5、360°=_____(rad); 180°=_______(rad); 思考如何將角度制轉化為弧度制?如何將弧度制轉化為角度制?(結合實例講解)練習(通過練習固要點)1、練習5.2.1; 2、例3;展示(通過展示強能力)(25分鐘)(包括學生展示回顧、問題、練習、小組總結等部分)1、引導各小組展示學習成果,在有各小組長指定小組成員展示,結束后,該組組長須總結或指定其他成員進行總結。 2、展示過程中,提醒同學注意老師的板書,或者請老師進行總結,或題目的講解。

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    北師大初中數(shù)學九年級上冊復雜圖形的三視圖2教案

    教學目標:1.會畫直棱柱(僅限于直三棱柱和直四棱柱)的三種視圖,體會這幾種幾何體與其視圖之間的相互轉化。2. 會根據(jù)三視圖描述原幾何體。教學重點:掌握直棱柱的三視圖的畫法。能根據(jù)三視圖描述原幾何體。教學難點:幾何體與視圖之間的相互轉化。培養(yǎng)空間想像觀念。課型:新授課教學方法:觀察實踐法一、實物觀察、空間想像觀察:請同學們拿出事先準備好的直三棱柱、直四棱柱,根據(jù)你所擺放的位置經(jīng)過 想像,再抽象出這兩個直棱柱的主視圖,左視圖和俯視圖。繪制:請你將抽象出來的三種視圖畫出來,并與同伴交流。比較:小亮畫出了其中一個幾何體的主視圖、左視圖和俯視圖,你認為他畫的對不對?談談你的看法。拓展:當你手中的兩個直棱柱擺放的角度變化時,它們的三種視圖是否會隨之改變?試一試。

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