本環(huán)節(jié)旨在通過展示、評價踐行“孝親敬老”的活動成果,深化 “孝”的境界,培養(yǎng)學(xué)生回報家人、關(guān)愛他人的美德。展示過程中,學(xué)生的語言表達能力、誦讀能力、搜集和整理資料的能力、寫作能力得到了提升,同時也增強了自信心。二、談“孝”心1.在這為期一周的踐行“孝”的活動中,你有哪些體會和感受?請與大家分享。(生小組內(nèi)交流,小組代表發(fā)言)預(yù)設(shè) 示例一:在這次踐行“孝”的活動中,我做了許多表達孝心的事情,從中體會到了父母工作的艱辛、賺錢的不易,更能體諒他們了。我也了解到平時我不經(jīng)意說的話傷害了父母,讓父母擔(dān)憂難過了?,F(xiàn)在我與父母之間的關(guān)系變得更加融洽,父母對我的一些事情也能夠理解了,我發(fā)現(xiàn)只要我們對父母多一些尊重和理解,他們就會非常開心。示例二:我在采訪爺爺奶奶時,了解到祖輩們的人生經(jīng)歷和具體事跡,被他們身上的一些精神品質(zhì)所感動,更加欽佩他們了。這次的采訪活動增強了我與家人之間的溝通,增進了我與家人之間的情感交流,也讓我進一步了解了我們家族的一些歷史,讓我有了為家族努力奮斗的使命感。
我榮幸地以中華民族一員的資格,而成為世界公民。我是中國人民的兒子。我深情地愛著我的祖國和人民。 ——鄧小平一個人只要熱愛自己的祖國,有一顆愛國之心,就什么事情都能解決。什么苦楚,什么冤屈都受得了。 ——冰心做人最大的事情是什么呢?就是要知道怎么樣愛國。 ——孫中山能夠獻身于自己祖國的事業(yè),為實現(xiàn)理想而斗爭,這是最光榮不過的事情了?!獏怯裾峦鈬鴲蹏允纠何覀?yōu)樽鎳?wù),也不能都采用同一方式,每個人應(yīng)該按照資稟,各盡所能?!璧驴v使世界給我珍寶和榮譽,我也不愿離開我的祖國。因為縱使我的祖國在恥辱之中,我還是喜歡、熱愛、祝福我的祖國。 ——裴多菲我重視祖國的利益,甚于自己的生命和我所珍愛的兒女。 ——莎士比亞我無論做什么,始終在想著,只要我的精力允許我的話,我就要首先為我的祖國服務(wù)。 ——巴甫洛夫
方法三:我先把數(shù)字1放在個位,然后把數(shù)字2和3分別放在十位組成21和31;我再把數(shù)字2放在個位,然后把數(shù)字1和3分別放在十位組成12和32;我再把數(shù)字3放在個位,然后把數(shù)字1和2分別放在十位組成13和23,一共擺出了6個兩位數(shù)。(21、31、12、32、13、23)每種方法說完后師問:還能擺嗎?(再擺就要重復(fù)了!提示:不能遺漏也不能重復(fù))師小結(jié):排數(shù)的時候按照一定的順序既不會重復(fù)也不會遺漏。我們用3個不同的一位數(shù)拼成了幾個不同的兩位數(shù)?(板書:6個)可拓展:三只動物抽到卡片后最多能組成21、31、32那誰可以和聰聰一起坐呀?小貓很幸運,他抽到了2和3,那么他一定會擺出一個……(三)握手小動物們謝謝我們幫他們一起解決了這些數(shù)學(xué)問題,一定要讓老師表示謝意,好謝謝你們。(老師過去和學(xué)生握手。分別找?guī)讉€人握手,讓學(xué)生觀察,每兩個人握一次手。)
雖然在此之前已經(jīng)聽過多節(jié)有關(guān)的研討課,但臨到自己教學(xué)時才真正體會到本課教學(xué)的艱難。一是信息化時代對郵政編碼的沖突。其實我在教學(xué)前也僅僅只知道學(xué)校和家庭住址的郵編,至于郵政編碼的結(jié)構(gòu)含義等是完全陌生。在課堂前測中了解到,全班僅3人有寫信寄信的經(jīng)歷(這三名學(xué)生的老家都遠離湖北?。?,他們知道老家的郵編,全班有半數(shù)左右的家庭收集不到已經(jīng)郵寄過的舊信封??梢哉f在學(xué)習(xí)本課前師生對郵政編碼都是知之甚少,教師本身都只“半勺水”,何以給學(xué)生“一杯水”?雖然在課前布置學(xué)生收集了一些有關(guān)郵政編碼的知識,自己也進行了大量的查詢,但在實際教學(xué)中仍舊倍感吃力。如有學(xué)生質(zhì)疑“為什么書上北京人民出版社的郵編是100008,它的第三、四位都是0呢”;“為什么我們學(xué)校的郵編4300XX第三、四位也是0呢”;“郵區(qū)是不是指什么市?”“郵區(qū)與市、區(qū)、縣有什么關(guān)系?”一個接一個問題“炮轟”過來,著實招架不住。
Step 3 (3b)First, tell the students when we talk about our future plans, we often use: I’m+verb+ing When we talk about what we must do, we use have to. Ask the students to fill in the blanks in 3b. The answers are: shopping, go to see, a test, I’m going, my family. Step 4 (3c)Let the students write an e-mail message to a friend. Say why you can’t visit next. Before the exercise, ask the students to give some possible answers and write them on the blackboard. So the students will feel easy to finish the writing exercise. After they finish it, Let them to correct it in groups first. Each group chooses theirs best one to read in front of the whole class. Step 5 ( planning a party )First read the conversation in the box together. Then ask the students to turn to page 88.Write down everything you have to do next week. Write in all the things you have to do . Ask the students to look at the list. Ask them “What day are you free?” This is when you can have your party. Step 6 (Self check 1 )Let the students to fill in the blanks with the words given. Change the forms of the words if possible. Then make their own sentences. The answers are: visit, playing, have to, study, comeStep 7 (Self check 2)Imagine you are Marie. Read the information and look at your schedule. Write replies to the invitation.
“Go for it!” is based on “Task-Based Language Teaching”. It adheres to “The authenticity principle”, “The form-function principle”, “The task dependency principle” and “The principle of learning by doing”. These principles all accord with the demands of curriculum focus.In and of Grade Seven (II), “Go for it!”, students have learned “The Simple Past Tense”. And it appears again in of Grade Eight (I). teaches students more about how to talk about events in the past. In addition, it gives affirmative and negative statements in the past tense, such as the sentence patterns “Did you see …?” “Were there …?” “Did you go …?” As the first part of Unit 8, Section A opens with a picture presenting the last school trip in the aquarium and continues with several step-by-step practice activities, which are all good for students to master “The Simple Past Tense”. Doing well in Section A will help students integrate the new target language with that in Section B. Thus, they can describe the events in the past freely and foster their own ability of reflecting and practicing. II. Teaching ObjectivesTeaching objective is the beginning and aim of teaching activities. According to the overall goal of the English elementary course--- improve students' synthetic ability of language application, which should be based on the development of students’ “Language knowledge”, “Language skills”, “Character building”, “Learning strategies” and “Cross-cultural awareness”. The teaching objectives are described as follows(I). Knowledge objectivesi. Master the simple past tense of regular and irregular verbsii. Recite the new words and expressions about the last school trip in the aquarium, including their pronunciation and intonation
教學(xué)目標(biāo)1.知識目標(biāo):(1)學(xué)習(xí)What are you going to be when you grow up?/How are you going to do that?句式。(2)學(xué)會用英語描述有關(guān)職業(yè)的表達法。2.能力目標(biāo):(1)能夠談?wù)摓閷崿F(xiàn)理想所做出的打算和安排。(2)能夠談?wù)撐磥碜约号c他人理想的職業(yè)及原因。(3)能用英語描述課余時間的活動安排,最終具備表達綜合信息的能力。3.情感目標(biāo):新學(xué)期到來之際,讓他們在學(xué)習(xí)、體育、飲食、特長、讀書等方面制定計劃,教育學(xué)生合理安排自己的課外生活,思考自己的理想職業(yè)及適合自己的職業(yè)。教學(xué)重點、難點本單元的重點為“be going to”表將來,want to be, what,where, when,how引導(dǎo)的特殊疑問句。難點是語言目標(biāo)的實現(xiàn)。教材分析本單元以I am going to be a basketball player為話題,共設(shè)計了三部分的內(nèi)容:一、Section A該部分有4個模塊。第一模塊圍繞Do you think these jobs are interesting?這一話題展開思維(1a)、聽力(1b)、口語(1c)訓(xùn)練;
1 交通工具的比較此活動為小組活動。學(xué)生通過討論找出到達某一城市可乘坐的各種交通工具,并選擇最佳出行方式。Teacher:We’re going to Shanghai. How many ways can we use to get there? Yes, there are four ways: by bus, by plane, by train, by ship. Please discuss how you are going to get there.操作建議:(1)學(xué)生以小組為單位展開活動,談?wù)摫窘M所選擇的交通工具。(2)各組選代表向全班匯報,闡述本組所選擇的交通工具的利和弊。完成任務(wù)所需要的語言結(jié)構(gòu):We can go there by ship. It’s more comfortable and cheaper than any other transportation.We can go there by bus. It’s cheaper but it takes longer time.2 哪個城市更合適?此活動具有挑戰(zhàn)性。假設(shè)中國要舉行2014年世界杯足球賽,分別從歷史,人文,天氣等方面對各城市(北京,大連,上海,昆明)進行比較,選擇最佳舉辦城市。T: Imagine China is holding the 2014 FIFA World Cup. Which city do you think is the best for the World Cup, Beijing, Dalian, Shanghai or Kunming? Let’s work in groups. If you choose Beijing, please join the Team Red. If you chose Dalian, please join the Team White. If you choose Shanghai, please join the Team Blue. If you choose Kunming, please join the Team Green. Please show us its advantages. Then let’s see which team will win.
She shouldn’t go to the party tonight.Step7. TaskT: You know, there are lots of problems in our life. If you are a doctor, please tell us how to solve the problem. I will divide you into 9 groups. Please work in groups. And then choose one of you to report your ideas.The following are the problems:I have a toothache.I am hungry. I have a sore throat.I am stressed out. I have a sore back.I am tired. I can’t sleep.I have a cold. I have a headache.Report: If you have a headache, you should go to bed early. You should see the doctor. You should eat some medicine. You shouldn’t wash your face with cold water.You shouldn’t sleep late.You shouldn’t swim.…..T encourages the students to give advice as much as possible.Homework:1. Chose one of the problems, and write down your advice2. Copy the new words這一步是用于熱身的,同時也可以讓他們復(fù)習(xí)一部分的表示人體部位的單詞,擴充知識.學(xué)習(xí)語言的過程也是一個不斷積累的過程,復(fù)習(xí)舊知識,增添新知識.通過小游戲,強化學(xué)生對Does she/he have…這個句子的運用能力.通過復(fù)習(xí),自然的引到下面新知識的學(xué)習(xí)。充分利用表格,由句子到對話,再到文章,讓學(xué)生循序漸進. 提高學(xué)生的綜合語言運用能力,運用以前學(xué)過的知識來解決身邊的問題.Period 5 (Section B 3a—3c, selfcheck)教學(xué)內(nèi)容與分析:
1. First, ... then, ... next, ... finally, ...首先,……然后,……接著,……最后,……這是英語中表達做某事的步驟的一種說法。如果步驟較多,還可以說:first-next-after that-later on-finally/at last通常你會聽到說英語國家的人在說 first, next, then, finally 和后面的內(nèi)容時,他們會做一些停頓。這樣就能提前告訴聽者接下來講的是一系列的步驟。這一點在朗讀和聽力中應(yīng)特別注意。2. how many, how much均為疑問詞,同是“多少”,但用法不同。請看:how many修飾可數(shù)名詞復(fù)數(shù),how much修飾不可數(shù)名詞。但在用法上,同學(xué)們常犯如下錯誤:1) [誤] How many are there bananas on the table?[正] How many bananas are there on the table?[析] how many, how much 中的many,much是形容詞,常修飾名詞作定語,故后面跟名詞。2) [誤]How much tea are there on the table?[正]How much tea is there on the table?[析] how much修飾不可數(shù)名詞時,謂語動詞用單數(shù)。how many與how much的區(qū)別可簡記為:前how many:問“多少”,復(fù)數(shù)名詞后面跑;how much問“多少”,不可數(shù)名詞單數(shù)好。前者答語用基數(shù)詞,后者答語用數(shù)量關(guān)系。
一、 教學(xué)內(nèi)容Section A 1a----1c二、 教學(xué)目標(biāo)1.學(xué)習(xí)詞匯do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, sweep the floor, clean the living room.2.句型 Could you please clean your room? Yes, sure.三、 教學(xué)準(zhǔn)備 學(xué)生預(yù)習(xí)本單元所有的詞匯多媒體課件 活動表 獎品四、 教學(xué)過程Pre-task1. Warming upEnjoy ourselves. Watch cartoon Cinderella. 看動畫片段《灰姑娘》導(dǎo)如入本課話題和新詞匯“chores”美麗善良的鬼姑娘因繼母的嫉妒,每天得做所有的家務(wù)。片段的主題使學(xué)生聯(lián)想到本課的話題。2. learn new words and phrasesLook! What is she / he dong? 看圖學(xué)習(xí)動詞詞組do chores, do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, clean the living room.3. Guessing game.What is she doing ? 4. Pair work. 1a, Do you do these things at home? Write “Y” for “yes” and “N” for “no”.5. Listening . 1b , Peter’s chores or Mom’s chores?理解目標(biāo)語Could you please clean your room? Yes, sure.Write “M” for Mom’s chores, “P” for Peter’s chores in the chart.6. PairworkLook at the picture,Ask your partner to do the chores that you see. 7. Interview Who is the most able at home? 1) What chores do you do at home? How often do you do the chores? Work in four, interview each of the students in the group, fill in the chart.
Step Ⅶ Role play ( Work on 1b)1. First ask two students to read the dialogue to the class.Sa: How do you get to school?Sb: Well, I ride my bike to the subway station. Then I take the subway.2. Now work with a partner.Suppose you use two kinds of transportation to get to school \Hangzhou\Beijing... (bus, train, subway, walking, bike, etc.) Tell how you get there. You may use the phrases in 1a.3. Then ask different pairs of students to present their conversations to the class.Step ⅧListening1. Work on 2a(1) First ask students to read the list of information that Thomas wants to know.…where Nina lives.…h(huán)ow far from school she lives.…h(huán)ow long it takes to get to school.…h(huán)ow she gets to school.…what she thinks of the transportation.(2) Tell students what transportation and bus stop mean.bus stop 汽車站 transportation n. 運送;運輸Then tell students we'll hear a recording. Please put a checkmark in front of each thing that Thomas wants to know.(3) Now play the recording for students.( Have students pay attention to the sample answer.) (4) Then correct the answers.
Teaching goals : 1. Words & phrases: babysit ,get back , fishing , rent , think about , decide(on) , tourist etc. 2. How to talk about future plans . 3. 現(xiàn)在進行時表示將來計劃或行動. 4. 特殊疑問句(where , when , how long引導(dǎo)) Important and difficult points : Drills :What are you doing for vacation ? I’m watching TV . When are you going ? I’m going … . How long are you staying ? We’re staying for five days . Teaching aids : cards and a tape ,a large wall calendar . Period 1 Teaching procedures : Step 1Leading in1. Free talk . 2. Put up the wall calendar . T: I’m staying home on Saturday (pointing to next Saturday ).Ss repeat . Ss: I’m staying home on Saturday . T: OK. Today we’ll learn how to talk about future plans. Step 2Pre-task SB Page 13 , 1a . 1. Look at the picture carefully and tell what you see in the picture . 2. Write the activities from the pictures in the box and add some more . 3. Practice reading . Step 3While-task1. Using the activities we write in 1a to make conversations .For example :What are you doing for vacation ? I’m visiting my uncle . 2. Pairwork .Practice in pairs . 3. 用第三人稱練習(xí)對話.
教學(xué)重點和難點:運用所掌握的語言描述,比較不同地點的特點。在練習(xí)中學(xué)習(xí)掌握英語比較級和最高級的用法。課前準(zhǔn)備分配小組,每組五至六人。通過上網(wǎng)或翻閱報刊雜志等方法,確定旅游線路,做出基本的旅游計劃。教學(xué)設(shè)計:本節(jié)課流程圖 學(xué)法指導(dǎo):1.由于這是一堂新課,在教學(xué)中應(yīng)注意面向全體,發(fā)揮學(xué)生的主體性,引導(dǎo)學(xué)生積極參與,激發(fā)學(xué)生的求知欲和學(xué)習(xí)積極性,指導(dǎo)學(xué)生積極思維,主動獲取知識,養(yǎng)成良好的學(xué)習(xí)方法。逐步學(xué)會獨立解決問題??傊M可能調(diào)動學(xué)生的非智力因素促進智力因素的發(fā)展。教法選擇:1.電化教學(xué)法2.課堂討論法3.任務(wù)型教學(xué)法采用這些方法的目的是為了充分調(diào)動學(xué)生的學(xué)習(xí)積極性,使學(xué)生變被動學(xué)習(xí)為主動學(xué)習(xí)。通過電腦形象的演示,加強印象,提高興趣,突破難點,提高教學(xué)效率,進而增大教學(xué)的容量和信息量。充分體現(xiàn)教師為主導(dǎo),學(xué)生為主體的教學(xué)原則。
教材分析:例4是讓學(xué)生判斷媽媽要買三種生活用品,帶100元錢夠不夠??梢越Y(jié)合這種生活中經(jīng)常出現(xiàn)的情景,使學(xué)生認識到,在日常生活中,有時需要進行精確計算,有時根據(jù)實際的需要只要估算出大致的結(jié)果就可以了,便于學(xué)生更完整、全面、深刻地認識數(shù)學(xué)的功能。估算的策略是多樣化的,可以用連加,也可以用連減,還可以用加減混合,中間包含了加法的估算和減法的估算。教材上呈現(xiàn)了兩種估算策略,有一名學(xué)生用連減的方法先估算出100-28大約得70,再估算出70-43大約得30,從而判斷用剩下的錢買水杯還夠,兩步計算中都運用了估算。另一名學(xué)生先用加法估算出28+43大約得70,再口算出大約還剩30元,從而得出買水杯還夠的結(jié)論,第一步計算運用了估算,第二步是精確計算。由于每個個體的思維方式和思維水平不同,所采取的估算策略也是不同的,教材上除了提供這兩種估算策略以外,還有一名學(xué)生提出問題:“還可以怎樣算呢?”提示教師在教學(xué)時讓學(xué)生靈活采用適合自己的估算方法,體現(xiàn)了算法多樣化的思想。
【課中安排學(xué)唱《可愛的角》這首歌曲,旋律是學(xué)生熟悉并喜愛的,加上簡明扼要的歌詞和動作,提高了孩子們的興趣。】四、課堂活動(課件出示)1.辨角。用你火眼金睛找出哪些是角?哪些不是角?為什么?(練習(xí)八的第1題)【在學(xué)生對角建立起概念的前提下,讓學(xué)生做該練習(xí),從而加深了學(xué)生對角的認識,增強分析、判斷能力。這個練習(xí)可以叫它“跟隨”練習(xí),即剛學(xué)會一個新的概念,認識一個新的內(nèi)容之后,緊跟著的一個比較容易的以選擇和判斷為主的練習(xí)。】2.?dāng)?shù)角(練習(xí)八的第2題)。師:小馬看見小朋友們都認識了角,非常高興,看看天色不早了,趕緊趕路,跑了一會兒,看見圖形王國里面有許多圖形,但小馬不知道各有幾個角?小朋友們能幫助它數(shù)一數(shù)嗎?【這是一道“鞏固”練習(xí),讓學(xué)生將所學(xué)知識做一次運用,難度稍加大,但學(xué)生能做出來,并且能找到練習(xí)中的規(guī)律,能享受到一種成就感?!?/p>
1、讓學(xué)生仔細觀察,練習(xí)二十二1題圖,你看到了什么?生:舉手自由口答。2、師:根據(jù)這些信息,你能提出什么問題?板書學(xué)生提出問題在此基礎(chǔ)上,師生重點解決問題3、小黑板出數(shù)統(tǒng)計表、統(tǒng)計圖(1)學(xué)生在樹上獨立完成(2)上臺展示并回答問題(3)師質(zhì)疑:你還能提出哪些問題?[設(shè)計意圖]:通過統(tǒng)計停車場每種車的數(shù)量,把解決問題和統(tǒng)計知識綜合進來,鞏固所學(xué)統(tǒng)計知識和解決問題,體驗怎樣收集信息。二、生活應(yīng)用1、出示97頁2題(1)同桌觀察理解(2)獨立在書上完成2、互相糾錯評價,教師巡視輔導(dǎo)。3、質(zhì)疑:你還能提出什么問題?[設(shè)計意圖]:讓學(xué)生通過數(shù)“正”字來收集信息。三、開放實踐1、p97頁3題4題(1)學(xué)生以小組為單位展開討論統(tǒng)計。(1、2、3組做3題,4、5、6組做4題)(2)展示師生互評[設(shè)計意圖]:讓學(xué)生發(fā)揮主體性去調(diào)查收集數(shù)據(jù),根據(jù)自己的能力提出并回答一些問題。
教學(xué)目標(biāo): 1.理解、掌握梯形面積的計算公式,并能運用公式正確計算梯形的面積。2.發(fā)展學(xué)生空間觀念。培養(yǎng)抽象、概括和解決實際問題的能力。3.掌握“轉(zhuǎn)化”的思想和方法,進一步明白事物之間是相互聯(lián)系,可以轉(zhuǎn)化的。教學(xué)重點:理解、掌握梯形面積的計算公式。教學(xué)難點:理解梯形面積公式的推導(dǎo)過程。教學(xué)過程:1.導(dǎo)入新課(1)投影出示一個三角形,提問:這是一個三角形,怎樣求它的面積?三角形面積計算公式是怎樣推導(dǎo)得到的?學(xué)生回答后,指名學(xué)生操作演示轉(zhuǎn)化的方法。(2)展示臺出示梯形,讓學(xué)生說出它的上底、下底和各是多少厘米。(3)教師導(dǎo)語:我們已學(xué)會了用轉(zhuǎn)化的方法推導(dǎo)三角形面積的計算公式,那怎樣計算梯形的面積呢?這節(jié)課我們就來解決這個問題。(板書課題,梯形面積的計算)
(1) 你是用什么方法解方程的?要求學(xué)生獨立完成。請一位同學(xué)在黑板上計算。學(xué)生交流:等式的兩邊同時加上同一個數(shù),等式仍然成立。也就是方程 x-9=15的兩邊同時加上9,抵消掉等式左邊的9,這樣等式的左邊只剩下x。(2) 你會檢驗方程的解是否正確嗎?指導(dǎo)學(xué)生把方程的解代入方程進行檢驗。2.出示:64頁第2題的第2小題。提問:你是根據(jù)哪個等量關(guān)系列出方程的?(1) 標(biāo)準(zhǔn)體重+超出標(biāo)準(zhǔn)的重量=胖胖的體重(2) 標(biāo)準(zhǔn)體重-低于標(biāo)準(zhǔn)的重量=小明的體重提問:他們標(biāo)準(zhǔn)體重的計算方法有什么不同?學(xué)生交流:一個是等式兩邊同時減去同一個數(shù),一個是等式兩邊同時加上同一個數(shù)。三、拓寬應(yīng)用。1.解方程:x-5.3=10 75-x=402.65頁第4題提問:你是怎樣選出各方程的解的?把未知數(shù)的值代入方程,看看左右是否相等。3.65頁第5題提示學(xué)生認真讀題,注意選擇題中所給出的條件是否有用。
課堂教學(xué)設(shè)計說明求比一個數(shù)少幾的數(shù)的應(yīng)用題是低年級教學(xué)的一個難點.為了分散難點,在復(fù)習(xí)準(zhǔn)備階段做了孕伏.如:圓比三角形多2個,也可以說三角形比圓少2個.為了突破難點,讓學(xué)生動手擺、動口說、動筆寫,全方位地調(diào)動學(xué)生的各種感官參與教學(xué)全過程,使學(xué)生在參與學(xué)習(xí)的活動中領(lǐng)悟出“求比一個數(shù)少幾的數(shù)”的應(yīng)用題仍然是把較大數(shù)看作兩部分組成的,從大數(shù)中去掉大數(shù)比小數(shù)多的部分,就是小數(shù)與大數(shù)同樣多的部分,也就是小數(shù)的數(shù)值.也可以通過“假設(shè)同樣多”去透徹地理解比一個數(shù)少幾的實際意義.確實使學(xué)生理解和掌握了這類應(yīng)用題用減法計算的道理和解答方法.為了讓學(xué)生進一步加深理解和掌握“求比一個數(shù)少幾的數(shù)”的應(yīng)用題的數(shù)量關(guān)系和解答方法,在鞏固練習(xí)的最后設(shè)計了一組對比題目.