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人教版新目標(biāo)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(biāo)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(xué)生能運(yùn)用過去進(jìn)行時(shí)來描述、談?wù)撨^去某個(gè)時(shí)間正在發(fā)生的事情或動(dòng)作的意識和能力，能就過去某個(gè)時(shí)間正在發(fā)生的動(dòng)作做出正確的描述。 2.培養(yǎng)學(xué)生的想象力和角色扮演的合作能力。 3.培養(yǎng)學(xué)生講述過去發(fā)生的事情經(jīng)過的能力。能正確運(yùn)用一般過去時(shí)來講述故事。 (二).技能方面: 1.本單元的語言目標(biāo)是Talk about past events and tell a story（談?wù)撨^去的時(shí)間和講述一個(gè)故事），圍繞這一目標(biāo)，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(xué)習(xí)standing、studying、cleaning、sleeping、cooking、making、eating、cutting、等表示地點(diǎn)的詞，以便為上述句型提供語言材料。2.學(xué)習(xí)過去進(jìn)行時(shí)的有關(guān)知識。Was/were+現(xiàn)在分詞，是該時(shí)態(tài)的表達(dá)式。 3.在學(xué)習(xí)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(dǎo)的狀語從句的句型結(jié)構(gòu)。注意它們的不同。
人教版新目標(biāo)初中英語八年級下冊Why don’t you get her a scarf教案
教師帶領(lǐng)學(xué)生復(fù)習(xí)有關(guān)描述寵物的詞匯，采用教師提問學(xué)生回答的方進(jìn)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(xué)生進(jìn)行 pairwork 練習(xí)。Task two: 師生互動(dòng)，學(xué)習(xí)探究 1、播放3a部分的錄音，引導(dǎo)學(xué)生一邊聽錄音，一邊跟讀。2、通過聽錄音學(xué)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(xué)生的回答進(jìn)行及時(shí)點(diǎn)評。3．學(xué)習(xí)范文，學(xué)習(xí)重點(diǎn)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(biāo)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(biāo)初中英語九年級下冊By the time I got outside, the bus had already left教案
Ⅰ． Teaching Aims and Demands1． Knowledge Objects（1） Key Vocabularyoversleep（2） Target LanguageWhat happened?I overslept． And by the time I got up, my brother had already gotten in the shower．2． Ability Objects（1） Teach the students to use the new words．（2） Train the students to narrate past events with the Past Perfect Tense．（3） Train the students' listening and speaking skills with the target language．3． Moral ObjectIt’s a good habit to go to bed early in the evening and get up early in the morning． So you’ll never be in a hurry in the morning．Ⅱ． Teaching Key Points1． Key Vocabularyoversleep2． Target LanguageNarrate past events with the Past Perfect TenseⅢ． Teaching Difficult Points1． Train the students to narrate past events with the Past Perfect Tense．2． Train the students to understand the target language in spoken conversation．Ⅳ． Teaching Methods1． Thinking of examples from the students' real lives．2． Making sentences by looking at the pictures．Ⅴ． Teaching AidA tape recorderⅥ． Teaching ProceduresStep I Revision1． Revise the language points in Unit 8．Ask some questions like this: What volunteer work would you like to do?Help the students to answer, I’d like to…/I love to…/I hope to2． Practice the dialogue in Activity 3c on page 62 again． Get students to role play the similar dialogues with the following．
人教版新目標(biāo)初中英語九年級下冊Rainy days make me sad教案
1. 教材分析本單元以how do things affect you？為話題, 從顏色、天氣、音樂、廣告、產(chǎn)品等方面談?wù)摿送饨缡挛锶绾斡绊懭说男那?。要求學(xué)生掌握表達(dá)某物或某事給人帶來的感覺、看法或影響等。共設(shè)計(jì)了四個(gè)部分的內(nèi)容：Section A 該部分有4個(gè)模塊：第一模塊圍繞Which restaurant would you like to go to?這一話題展開思維（1a）、聽力（1b）、口語（1c）訓(xùn)練；第二模塊圍繞How does music affect you? 進(jìn)行聽力（2a-2b）、口語訓(xùn)練（2c）；第三模塊繼續(xù)圍繞how do colors in the restaurant affect you這一話題展開訓(xùn)練，訓(xùn)練形式為閱讀和問題體驗(yàn)（3a）和小組活動(dòng)（3b）；第四模塊仍就How do things affect you這一話題以調(diào)查的形式展開討論。Section B該部分有4個(gè)模塊：第一模塊圍繞產(chǎn)品廣告對人們的影響這一話題以“配對”（1a）與“列舉”（1b）兩種形式展開訓(xùn)練；第二模塊繼續(xù)圍繞How do things affect you? 進(jìn)行聽力（2a-2b）、口語對話訓(xùn)練（2c）；第三模塊圍繞“Advertising”這一話題展開閱讀（3a-3b）和寫作（3c）訓(xùn)練；第四模塊圍繞How posters affect you這一話題以口語訓(xùn)練形式展開小組活動(dòng)。
人教版新目標(biāo)初中英語九年級下冊I’ll help clean up the city parks教案
Talk about offering help (P60)I’ll help clean up the city parks.A: I’d like to work ...B: You could help ...Talk about ways to tell people about the Clean-Up Day (P61)We need to ...We can’t ...I’ll ...Talk about the work the volunteers do (P62)These three students all volunteer their time to help other people.Somebody loves to ... / helps ... / plans to ... / wants to ...A: What do you like doing?B: I like ... A: What kind of volunteer work do you think I could do?B: You could ...1. 重點(diǎn)詞匯advertisement, fix, repair, pleasure, blind, deaf, shut, carry, specially, fetch2. 認(rèn)讀詞匯hunger, homeless, cheer, clean-up, sign, establish, major, commitment, elementary, veterinarian, coach, similar, call-in, strategy, disabled, organization, unable, support, appreciate, donation, part of speech, pronoun, adverb, preposition, conjunction, donate, Jimmy, Sally3. 詞組clean up, cheer up, give out, put off, set up, think up, take after, fix up, give away, put up, hand out, work out, at once
人教版新目標(biāo)初中英語九年級下冊We’re trying to save the manatees教案2篇
本單元主要圍繞著有關(guān)瀕臨滅絕的動(dòng)物這一話題，學(xué)習(xí)了應(yīng)該怎樣保護(hù)我們的環(huán)境，以及就某一問題展開辯論。目標(biāo)提示語言目標(biāo)能夠運(yùn)用所學(xué)知識，就某一問題展開辯論。認(rèn)知目標(biāo)1、復(fù)習(xí)一些語法：現(xiàn)在進(jìn)行時(shí)、一般現(xiàn)在時(shí)、用used to 表示一般過去時(shí)、現(xiàn)在完成時(shí)、一般過去時(shí)的被動(dòng)語態(tài)。2、學(xué)會(huì)表達(dá)同意和不同意。3、學(xué)會(huì)以下基本句型：We’re trying to save the manatees.Manatees eat about 100 pounds of food a day.There used to be a lot of manatees.In 1972,it was discovered that they were endangered.Some of the swamps have become polluted.情感目標(biāo)了解一些瀕臨滅絕的動(dòng)物的生活習(xí)性和瀕臨滅絕的原因，教育學(xué)生應(yīng)該如何保護(hù)環(huán)境。教學(xué)提示充分利用多媒體等教學(xué)設(shè)備，創(chuàng)設(shè)與本課話題相關(guān)的情境，如各種不同種類的動(dòng)物、動(dòng)物園以及有關(guān)環(huán)境的畫畫等等。圍繞著本單元的教學(xué)目標(biāo)，設(shè)計(jì)一些貼近學(xué)生實(shí)際的教學(xué)任務(wù)，如讓學(xué)生談?wù)撟约鹤钕矚g的動(dòng)物，如何拯救瀕危動(dòng)物，如何保護(hù)環(huán)境等等。讓學(xué)生根據(jù)所學(xué)知識，就動(dòng)物園是否對動(dòng)物有利以及其他的話題進(jìn)行辯論。
小學(xué)美術(shù)人教版一年級下冊《第12課媽媽的節(jié)日》教案
教學(xué)重點(diǎn)：1、通過繪畫、制作表達(dá)自己的愿望。2、學(xué)會(huì)認(rèn)同自己的作品。3、敢于運(yùn)用不同的材料表現(xiàn)自己的創(chuàng)意。教學(xué)難點(diǎn)：能夠發(fā)揮想象，運(yùn)用不同的材料表現(xiàn)自己特殊的創(chuàng)意。教師準(zhǔn)備：媽媽的生活錄像、學(xué)生作品照片、小制作若干、各種動(dòng)物親情照片、教學(xué)課件學(xué)生準(zhǔn)備：彩紙、橡皮泥、彩色卡紙、剪刀、彩筆、小盒子、紐扣、絲帶、信紙
人教版新目標(biāo)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(xué)步驟、時(shí)間 教師活動(dòng) 學(xué)生活動(dòng) 媒體應(yīng)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(xué)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(shí)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(xué)習(xí))
人教部編版語文九年級下冊陳涉世家教案
1.王侯是一個(gè)地區(qū)的實(shí)際統(tǒng)治者，世代保有其國，對全國政局有一定的影響，故其傳記稱為“世家”。陳涉并非王侯，司馬遷為什么把他歸入“世家”？《史記》中人物傳記分為三類，“本紀(jì)”記帝王，“世家”記王侯，“列傳”記人臣，但這只是一個(gè)大略的劃分，對于某些歷史人物，作者有他特殊的考慮。陳涉就是一個(gè)特例。他出身低微，起義后雖自立為王，但為時(shí)僅六個(gè)月。之所以列入“世家”，是因?yàn)樵谇赝醭膰?yán)酷統(tǒng)治下首先發(fā)難，的確是非常之功。司馬遷在這篇傳記的最后寫道：“陳勝雖已死，其所置遣侯王將相卒亡秦，由涉首事也?！笨梢娝抉R遷看重的是功業(yè)，而不以成敗論英雄。類似的例子有項(xiàng)羽，他并未統(tǒng)一稱帝，但作者高度評價(jià)了他在反秦斗爭中的領(lǐng)導(dǎo)作用，把他列入“本紀(jì)”。2.本文是長篇節(jié)選，在結(jié)構(gòu)上具有怎樣的特點(diǎn)？
二年級數(shù)學(xué)下冊第六單元有余數(shù)的除法教案
1、教學(xué)主題圖。（1）讓學(xué)生獨(dú)立觀察教材情境圖。思考問題：[1]這幅畫面是什么地方？[2]你發(fā)現(xiàn)了畫面中有什么活動(dòng)內(nèi)容？（按順序）（2）在小組中互相說一說自己觀察到了什么內(nèi)容。你想到了什么？（3）各組代表匯報(bào)。（4）教師板書學(xué)生匯報(bào)的數(shù)據(jù)。[1]這是某個(gè)校園里的活動(dòng)情景圖。從圖中發(fā)現(xiàn)了教學(xué)大樓前面的兩樹之間都插著4面不同顏色的旗子，升旗臺上也飄著一面國旗。[2]運(yùn)動(dòng)場上每4人一組小朋友在跳繩。[3]籃球場上每5人一組準(zhǔn)備打籃球比賽。[4]板報(bào)下面擺的花是每3盆擺一組，旁邊還有很多盆花。（5）根據(jù)上面的信息（條件），想一想能提出用除法計(jì)算的問題嗎？大家在小組議一議。
北師大初中八年級數(shù)學(xué)下冊分式的乘除法教案
通常購買同一品種的西瓜時(shí)，西瓜的質(zhì)量越大，花費(fèi)的錢越多，因此人們希望西瓜瓤占整個(gè)西瓜的比例越大越好．假如我們把西瓜都看成球形，并把西瓜瓤的密度看成是均勻的，西瓜的皮厚都是d，已知球的體積公式為V＝43πR3(其中R為球的半徑)，求：(1)西瓜瓤與整個(gè)西瓜的體積各是多少？(2)西瓜瓤與整個(gè)西瓜的體積比是多少？(3)買大西瓜合算還是買小西瓜合算？解析：(1)根據(jù)體積公式求出即可；(2)根據(jù)(1)中的結(jié)果得出即可；(3)求出兩體積的比即可．解：(1)西瓜瓤的體積是43π(R－d)3，整個(gè)西瓜的體積是43πR3；(2)西瓜瓤與整個(gè)西瓜的體積比是43π（R－d）343πR3＝（R－d）3R3；(3)由(2)知，西瓜瓤與整個(gè)西瓜的體積比是（R－d）3R3<1，故買大西瓜比買小西瓜合算．方法總結(jié)：本題能夠根據(jù)球的體積，得到兩個(gè)物體的體積比即為它們的半徑的立方比是解此題的關(guān)鍵．
北師大初中八年級數(shù)學(xué)下冊第六章復(fù)習(xí)教案
解1：設(shè)該多邊形邊數(shù)為n，這個(gè)外角為x°則 因?yàn)閚為整數(shù)，所以 必為整數(shù)。即： 必為180°的倍數(shù)。又因?yàn)?，所以 解2：設(shè)該多邊形邊數(shù)為n，這個(gè)外角為x。又 為整數(shù)， 則該多邊形為九邊形。第二環(huán)節(jié)：隨堂練習(xí)，鞏固提高1.七邊形的內(nèi)角和等于______度；一個(gè)n邊形的內(nèi)角和為1800°，則n=________。2.多邊形的邊數(shù)每增加一條，那么它的內(nèi)角和就增加 。3.從多邊形的一個(gè)頂點(diǎn)可以畫7條對角線，則這個(gè)n邊形的內(nèi)角和為（ ）A 1620° B 1800° C 900° D 1440°4.一個(gè)多邊形的各個(gè)內(nèi)角都等于120°，它是（ ）邊形。5.小華想在2012年的元旦設(shè)計(jì)一個(gè)內(nèi)角和是2012°的多邊形做窗花裝飾教室，他的想法（ ）實(shí)現(xiàn)。（填“能”與“不能”）6. 如圖4，要測量A、B兩點(diǎn)間距離，在O點(diǎn)打樁，取OA的中點(diǎn) C，OB的中點(diǎn)D，測得CD=30米，則AB=______米．
北師大初中八年級數(shù)學(xué)下冊第五章復(fù)習(xí)教案
教學(xué)效果：部分學(xué)生能舉一反三，較好地掌握分式方程及其應(yīng)用題的有關(guān)知識與解決生活中的實(shí)際問題等基本技能．第六環(huán)節(jié) 課后練習(xí)四、教學(xué)反思數(shù)學(xué)來源于生活，并應(yīng)用于生活，讓學(xué)生用數(shù)學(xué)的眼光觀察生活，除了用所學(xué)的數(shù)學(xué)知識解決一些生活問題外，還可以從數(shù)學(xué)的角度來解釋生活中的一些現(xiàn)象，面向生活是學(xué)生發(fā)展的“源頭活水”．在解決實(shí)際生活問題的實(shí)例選擇上，我們盡量選擇學(xué)生熟悉的實(shí)例，如：學(xué)生身邊的事，購物，農(nóng)業(yè)，工業(yè)等方面，讓學(xué)生真切地理解數(shù)學(xué)來源于生活這一事實(shí)。有些學(xué)生對應(yīng)用題有一種心有余悸的感覺，其關(guān)鍵是面對應(yīng)用題不知怎樣分析、怎樣找到等量關(guān)系。在教學(xué)中，如果采用列表的方法可幫助學(xué)生審題、找到等量關(guān)系，從而學(xué)會(huì)分析問題?？赡軐W(xué)生最初并不適應(yīng)這種做法，可采用分步走的方法，首先，讓學(xué)生從一些簡單、類似的問題中模仿老師的分析方法，然后在練習(xí)中讓學(xué)生悟出解決問題的竅門，學(xué)會(huì)舉一反三，最后達(dá)到能獨(dú)立解決問題的目的。
北師大初中九年級數(shù)學(xué)下冊二次函數(shù)2教案
4．x的值是否可以任意取?如果不能任意取，請求出它的范圍，[x的值不能任意取，其范圍是0≤x≤2]5．若設(shè)該商品每天的利潤為y元，求y與x的函數(shù)關(guān)系式。[y=(10－8－x) (100＋100x)(0≤x≤2)]將函數(shù)關(guān)系式y(tǒng)=x(20－2x)(0 ＜x ＜10＝化為：y=－2x2＋20x (0＜x＜10)…(1)將函數(shù)關(guān)系式y(tǒng)=(10－8－x)(100＋100x)(0≤x≤2)化為：y=－100x2＋100x＋20D (0≤x≤2)…(2)三、觀察；概括1.教師引導(dǎo)學(xué)生觀察函數(shù)關(guān)系式(1)和(2)，提出問題讓學(xué)生思考回答；(1)函數(shù)關(guān)系式(1)和(2)的自變量各有幾個(gè)? (各有1個(gè))(2)多項(xiàng)式－2x2＋20和－100x2＋100x＋200分別是幾次多項(xiàng)式?(分別是二次多項(xiàng)式)(3)函數(shù)關(guān)系式(1)和(2)有什么共同特點(diǎn)? (都是用自變量的二次多項(xiàng)式來表示的)(4)本章導(dǎo)圖中的問題以及P1頁的問題2有什么共同特點(diǎn)？讓學(xué)生討論、歸結(jié)為：自變量x為何值時(shí)，函數(shù)y取得最大值。2．二次函數(shù)定義：形如y=ax2＋bx＋c (a、b、、c是常數(shù)，a≠0)的函數(shù)叫做x的二次函數(shù)， a叫做二次函數(shù)的系數(shù)，b叫做一次項(xiàng)的系數(shù)，c叫作常數(shù)項(xiàng)．
二年級數(shù)學(xué)下冊第三單元數(shù)圖形的運(yùn)動(dòng)教案
一、游戲活動(dòng)激趣，認(rèn)識對稱物體1、游戲“猜一猜”：課件依次出示“剪刀、掃帚、飛機(jī)、梳子”的一部分，分男、女生猜。2、認(rèn)識對稱物體：1）師質(zhì)疑：為什么女生猜得又快又準(zhǔn)呢？2）小結(jié)：像這樣兩邊形狀、大小都完全相同的物體，我們就說它是對稱物體。（板書：對稱）二、猜想驗(yàn)證新知，認(rèn)識軸對稱圖形（一）初步感知對稱圖形1、將“剪刀、飛機(jī)、扇子”等對稱物體抽象出平面圖形，讓學(xué)生觀察，這些平面圖形還是不是對稱的。2、師小結(jié)：像這樣的圖形，叫做對稱圖形。（板書：圖形）（二）猜想驗(yàn)證對稱圖形1、猜一猜：出示“梯形、平行四邊形、圓形、燕尾箭頭”等平面圖形，讓學(xué)生觀察。師：這些平面圖形是不是對稱圖形？怎樣證明它們是不是對稱圖形？
二年級數(shù)學(xué)下冊第七單元萬以內(nèi)數(shù)的認(rèn)識教案
一、復(fù)習(xí)導(dǎo)入1、口答：最大的一位數(shù)是幾？最小的兩位數(shù)是多少？這兩個(gè)數(shù)相差多少？2、數(shù)數(shù)：10個(gè)10個(gè)地?cái)?shù)，從10數(shù)到100； 1個(gè)1個(gè)地?cái)?shù)，從91數(shù)到99； 問：99加1是多少？3、導(dǎo)入：你會(huì)從100開始接著往后數(shù)嗎？今天開始我們將要學(xué)習(xí)更大的數(shù)，下面請你們觀察這幅圖。二、講授新課1、出示主題圖。（1）觀察這幅圖，說一說畫面上正在發(fā)生什么事情？（2）看著畫面你想知道什么問題？引導(dǎo)學(xué)生估算畫面上的體育館大約能坐多少人？2、板書課題：1000以內(nèi)數(shù)的認(rèn)識。3、教學(xué)例1。（1）數(shù)一數(shù)。每人數(shù)出10個(gè)小方塊，說說你是怎么數(shù)的？板書：一個(gè)一個(gè)地?cái)?shù)，10個(gè)一是十。
二年級數(shù)學(xué)下冊第十單元總復(fù)習(xí)教案
1、復(fù)習(xí)萬以內(nèi)數(shù)的認(rèn)識。 請同學(xué)們先來回憶一下，我們學(xué)了萬以內(nèi)數(shù)的哪些知識？ 回憶學(xué)了萬以內(nèi)數(shù)的數(shù)數(shù)、讀數(shù)、寫數(shù)、數(shù)的組成、數(shù)位的含義、數(shù)的順序和大小比較、近似數(shù)以及整百、整千數(shù)的加減法……2、下面先請大家獨(dú)立做教材第3題，然后集體訂正。 指名讓學(xué)生說一說是怎么做的？3、寫一寫，再讀一讀。① 千位上是2個(gè)千、百位上是5個(gè)百、個(gè)位上是6個(gè)一。② 二千五百零六。4、 下面復(fù)習(xí)用計(jì)數(shù)單位表示數(shù)，獨(dú)立完成書上第4題，想一想是怎樣做出來的。5、 復(fù)習(xí)近似數(shù)。請同學(xué)們看教材第5題，找出這段文字中哪些數(shù)是近似數(shù)？并畫出來。再請同學(xué)回答。
二年級數(shù)學(xué)下冊第八單元克和千克教案
1、拿出一本數(shù)學(xué)教課書，和一只筆，提問：哪個(gè)重有些？2、肯定學(xué)生的回答，并讓學(xué)生“掂一掂”，然后讓學(xué)生說說有什么樣的感覺。3、從剛才的實(shí)踐得出結(jié)論：物體有輕有重。板書課題。二、觀察、操作領(lǐng)悟新知1、出示主題掛圖，物體的輕重的計(jì)量。觀察主題掛圖。（1、）請同學(xué)們觀察一下，這幅圖畫的是什么？（2、）這幅圖中的小朋友和阿姨在說什么？（3、）前幾天，老師讓大家廣泛收集、調(diào)查我們?nèi)粘Ｉ钪谐Ｒ娢锲返馁|(zhì)量，我們現(xiàn)在來交流以下好嗎？表示物品有多重，可以用克和千克單位來表示。（4、）在學(xué)生說的同時(shí)，老師拿出有準(zhǔn)備的東西展示。