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人教版新目標初中英語七年級上冊Where’s my backpack說課稿
語言知識：Where is/are-----? Is it /Are they on/in/under-----? Yes, it is. / No, it isn’t.Yes, they are./ No, they aren’t.任務(wù)二：尋寶大行動活動目的：通過創(chuàng)設(shè)貼近生活的語言情景，學生自由選擇所學的語言知識進行交流，培養(yǎng)學生綜合運用語言的能力?；顒舆^程：學生課前把自己最喜歡的一件東西收藏起來。以小組為單位，詢問其他組員把寶物放在什么地方。規(guī)定時間內(nèi)找到寶物最多者獲勝。語言知識：Where is/are-----? Is it /Are they on/in/under-----? Yes, it is. / No, it isn’t.Yes, they are./ No, they aren’t.任務(wù)三：找差別活動目的：培養(yǎng)學生用英語思維的判辨能力，并對學生滲透德育教育：應(yīng)該養(yǎng)成良好的生活習慣，保持房間干凈整潔?；顒舆^程：學生看兩幅相似的圖片，圖片中有一些相同的物品，但所放的地點卻不一樣。以小組為單位，輪流詢問有關(guān)物品所在的位置。學生記錄下兩幅圖片中物品位置的不同，并在班上匯報自己小組得出的結(jié)果。
人教版新目標初中英語七年級上冊Is this your pencil說課稿
教師準備利用錄音使學生學習一些物品名詞，并引導(dǎo)學生進行Pair work，學會詢問“What’s this? It's a … . How do you spell watch? W-A-T-C-H.”；引導(dǎo)學生寫“尋物啟事”和“失物招領(lǐng)”，畫圖猜測物品，鞏固所學內(nèi)容，培養(yǎng)學生動腦、動手的能力及拾金不昧的精神和助人為樂、團結(jié)友愛的品德。學生準備學習一些物品名詞，了解寫尋物啟事和失物招領(lǐng)的內(nèi)容和格式。1. Warming up考慮到大多數(shù)學生以前學過一部分單詞,可以以猜謎語競賽的形式導(dǎo)出本課內(nèi)容. 以pencil為例:Step1: 說出謎面, 可以用漢語解釋.Our little JohnHas a wooden shirt on, And a long, sharp nose.He leaves his mark wherever he goes.接著教師畫一件物品如：baseball 問學生：What’s this? 讓學生使用句型 Is this a/an…?進行猜測。2. Group work學生分成四人或六人小組，將本單元的單詞畫出來加以猜測并評出最佳圖畫和最佳猜詞者。3. Read ,circle and write1) Ask students to look back at page 10 . Have students read the list of the words . 2) Look at the Section B 3a . 3) Check the answers by having one student read his or her circled answers . Answers : computer game , ring , ID card , watch 4) Page 11 3b . this activity provide guided reading practice using the target language . Teacher told students that they are in the wrong order . when they are in the right order , they will make a clear message .
人教版新目標初中英語七年級上冊My name’s Gina說課稿
１、利用插圖或?qū)嵨锟ㄆ寣W生找出在預(yù)備篇中所學的單詞，然后教師引導(dǎo)學習打招呼和介紹自己、詢問他人姓名的基本句型。２、讓學生聽１a、1b對話，練習對話并模仿對話，結(jié)識班級的其他同學Step４ Practice師生互動（角色扮演） 讓學生進行角色扮演１c、2c的對話，每兩人一組，編對話，這個步驟主要是對１a－2b的內(nèi)容進行鞏固。Step５ 聽說活動（句型操練）1．播放2a部分的錄音讓學生聽，引導(dǎo)學生通過聽對話熟悉人名，完成2a,2b部分的教學任務(wù)。2.引導(dǎo)學生重復(fù)他們所聽到的，模仿對話結(jié)識班級的其他同學，完成2c部分的教學任務(wù)。3.概括語法點Step６ 知識拓展 引導(dǎo)學生閱讀3a圖中的名和姓，了解有關(guān)中外姓名的文化知識差異；從3a中給自己選一個姓、名，然后調(diào)查其他同學的姓、名，完成3b的任務(wù)。Step７ Conclusion復(fù)習本課重難點,鞏固知識。Step８ Homework讓學生在課后運用所學單詞句型進行對話 練習。
人教版新目標初中英語九年級上冊I used to be afraid of the dark教案
內(nèi)容提示1．本單元主要內(nèi)容是學會used to結(jié)構(gòu)。Used to +動詞原形表示過去經(jīng)常、以前常常，只用于過去式中，用來表示現(xiàn)在已不存在的習慣或狀態(tài)。例如：They used to play football together．他們過去常在一起蹋足球。（現(xiàn)在不在一起踢了)2．used to的疑問形式和否定形式為Did you use to…?和I didn’t use to… 也可以用Used you to…?和I used not to…但現(xiàn)在多使用前者。例如：Did you used to swim in the river? 你過去常在河里游泳嗎?I didn’t use to play the piano． 我以前并不經(jīng)常彈鋼琴。教學目標一、學習目標（Language Goal） 1．學會陳述自己過去常做的事情。2．學會陳述自己過去的愛好等。3．能夠表達自己現(xiàn)在和過去在外表、性格、娛樂等方面的變化。4．能夠表達朋友、家人等現(xiàn)在和過去的變化。二、語言結(jié)構(gòu)（Language Structures） 1．I used to be short when I was young. 我年輕時個子很矮。 2． —Did you use to have straight hair? 你過去是直發(fā)嗎？—Yes, I did. 是的。 3． —Did you use to play the piano? 你過去彈鋼琴嗎？—No, I didn’t. 不，我不彈。 4．I used to be afraid of dark. 我過去害怕黑暗。 5．I’m terrified of the snakes. 我害怕蛇。
人教版新目標初中英語七年級上冊This is my sister教案
(Play the recording twice again.) (Check the answer.) ③Pairwork. Draw your own picture and talk about it. T: We find out the picture of Lin Hai’s family. Can you draw a picture of your family? SS: … T: OK. When you finish drawing, tell your partner about your picture. You can use “This is …” and “ These are …” to talk about. Then report it to the class. (Students work.) (Check students’ work. Ask two or three students to report.) Step Three: Task. Talk about the family tree. T: Look at the family tree. I think it’s a big family. You can do it in groups of four or three. You can do it in pairs or only by yourself. Then report it to the class. (Students work. Teacher walks around in the classroom and helps the students.) T: Stop here. Let’s check it out. (Choose students to do it.) S1: Look at my family tree. This is my… This is my … They have two … This is my … This is my …This is my …This is my. My parents have two children. This is…This is my …My uncle and my aunt have a son. He is my … (Ask two more students to do it.) Homework. Write a passage about your family.
人教版新目標初中英語七年級上冊What color is it教案
一、知識和能力目標通過本單元教學，使學生能運用所學英語，正確地描述物體的顏色；同時進一步學習分辨人物的用語，并加以運用。二、過程和方法目標本單元口語訓練應(yīng)當自始至終在一種鮮明的色彩背景下進行，旨在營造那種為學生所喜愛的歡快氣氛，教師應(yīng)當在十種顏色上大做文章；在使用實物時要使顏色醒目；在組合圖畫時，要盡量用大色塊；在使用投影時要使顏色突出來。教師可以從教室環(huán)境上入手營造色彩氣氛，如：選取十種顏色的硬色板，剪成各個大寫字母；或者將色板剪成各種卡通動物形象，懸掛在教室當中或在墻上，注明各種顏色的英語字塊。三、情感態(tài)度和價值觀目標用各種可以調(diào)動學生積極性的活動來提高學生的活躍性，激發(fā)他們參與討論的熱情。同時可以對學生進行美育教育，從小培養(yǎng)他們對美的正確認識。
人教版新目標初中英語七年級上冊When is your birthday教案
本單元主要學習名詞所有格 ('s 所有格 ) 的構(gòu)成和使用。在初次接觸 “ 名詞所有格 ” 時，學生較難理解的可能是 “ 所有格 ” 這個名稱，對于它的構(gòu)成，學生也許會覺得較容易。教師可通俗地告訴學生 “ 所有格 ” 的意思是表示 “…… 的 ” ，這樣學生反而容易接受。在使用 “ 名詞所有格 ” 形式時，學生容易犯錯誤或混淆的主要是：將這種一 's 構(gòu)成形式與 is 的縮寫形式混淆，如： My father's name's Jin Zhi ．，可以這樣告訴學生：名詞所有格的后面一般應(yīng)接名詞；勿將這種一 's 結(jié)構(gòu)盲目套用與人稱代詞上，代替物主代詞使用，如 He's father's name is Li Cheng 。在教學初期，可不講授名詞所有格的其它形式，待時機成熟，再向?qū)W生介紹復(fù)數(shù)名詞所有格形式的結(jié)構(gòu)一 ' ，如： the students' bikes 。 Self Check 教學內(nèi)容 Self Check( 教材 P52) 教學目標 知識與能力 復(fù)習詞匯 birthday ， date ， month ， January ， February ， March ， April ， May ， June ， July ， August ， September ， October ， November ， December ， date ， birth ， age ， old ， speech ． contest ． trip ， party ， event ， an ， festival ， pop ， concert ， chorus ， lecture ， music ；引導(dǎo)學生復(fù)習、鞏固“詢問和談?wù)撊掌凇钡哪繕苏Z言并運用所學知識安排活動。
人教版新目標初中英語七年級上冊Where’s my backpack教案
教師: 搜集單詞卡片、背景資料。 學生：彩筆、大白紙、相關(guān)新單詞。 教學設(shè)計 Step One: Learn the new words. 1.Present the new words. (Show some pictures and words on the screen to teach the students the new words.) T: What’s this? S1: It’s a room. T: Do you have a room like this? S2: Yes, I do./ No, I don’t. T: Read after me. R-O-O-M, room. Ss: R-O-O-M, room. (Teach the other words “TV, desk, picture” in the same way.) T: There are some words here. Read the words after me and spell them. (Learn the other words without pictures on the cards.) T: This is a word. Can you spell this word? (Point to a word in the card.) S1: Yes, I can. / No, I can’t. (Let them know the meaning of “can”.) T: I can spell your name. Can you spell my name? S1: Yes, I can. T: Can you write your name? S: Sorry, I can’t. I have no pen. T: You need a pen.( Give him a pen.) ( Let the students understand the word “need”.) T: I bring a football to school every day. Now it is on the floor. After class I take it to my home. (Teach “bring” and “take”. Put a football on the floor and point to the floor to teach the word “floor”.) 2.Practice the words. (Give the examples to the students and get the students to understand the new words.) Step To Listen and practice.
人教版新目標初中英語七年級上冊Good morning教案
一、知識和能力目標本單元要求學生掌握英文字母A—H，能認讀其印刷體和手寫體字母的大小寫等四種形式。書寫(大寫和小寫，筆順，筆畫)基本合乎要求。能看,聽，說本單元所列的日常交際用語，重點學會打招呼，并做到語音語調(diào)正確。注意一些字母及日常交際用語的發(fā)音，提醒學生不要將C／si：／發(fā)成／sei:／; ?/發(fā)成/e?/，也不要將Good?H /e ／等。??????'????說成／???????'???morning／二、過程和方法目標教師要盡量用英語組織教學。充分利用課堂的40分鐘，不講或少講漢語，盡量給學生創(chuàng)造英語情景。教師可以用手勢，表情，動作等示意，幫助學生聽懂課堂用語和日常交際用語，第一次介紹某個用語時，說英語，加譯文及手勢，以后可酌情省去譯文，最后只說英語，逐步讓學生聽懂。
人教版新目標初中英語七年級上冊Is this your pencil教案
T: Please look at the pictures and learn the new words.（用多媒體展示新單詞效果較好。）1．a(chǎn)t prep. 在（里面或附近）；在（點刻）；2．theart.表示特指的人、物、事或群體 3．lostadj.丟失的；遺失的4．Found adj. （find的過去式、過去分詞）找回的5．lost and found 失物招領(lǐng)6．please adv.請7．school n. 學校8．a(chǎn) set of一套；一副(Teach students to read the words.)2. Practice the new words. （事先錄制一段短的聽力，讓學生通過聽的訓練來強化所學的新單詞，并為學習寫尋物啟示和失物招領(lǐng)作好準備。）T: Please listen to a short passage twice then fill the blanks using the words we learned.(Show students a short passage and play the recording for the students to listen.)There are many things in (1)_____________________in my (2)__________. Look, here’s (3)_________keys. Is this yours? (4)__________call Jim (5)___________753-2289.Typescript:There are many things in the Lost and Found in my school. Look, here’s a set of keys. Is this yours? Please call Jim at 753-2289.
人教版新目標初中英語八年級上冊How was your school trip教案2篇
“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
人教版新目標初中英語八年級上冊I’m more outgoing than my sister教案2篇
1 交通工具的比較此活動為小組活動。學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.
人教版新目標初中英語九年級上冊Teenagers should be allowed to choose their own clothes教案2篇
Step 1 Greeting Greet the class and check the homeworkStep 2 A duty report The S on duty gives a report on the rules in his home and lead in 3a “Sun Fei’s and Wu Yu’s rules” Step 3 ReadingSs read the conversation and write the two girls’ rules in the chart. Check the answers.Get Ss to read after the tape and then read aloud by themselves. Then, T explains the language points.Step 4 Pairwork 3bRole play. Use the information in chart to practice with the conversation in 3a covered. They can look at the sample conversation in the right box.Step 5 Task 2 “Who’s the best reporter?”Make a survey by asking any 5 students the questions in the chart in activity 4. Then give out a report about it. See who is the best reporter? And the best reporter will get a nice ball-pen.Step 6 Summary and homework:Write out the report in your exercise-books.Period ThreeStep 1 Greeting and a duty reportThe S gives a duty report talking about his experience of being late for school. Lead in the question “Do you ever get to school late? How often do you get to school late? Always, usually, sometimes, or never?Step 2 1a Get Ss to finish writing.Step 3 Pairwork 1b Get Ss to talk about their answers with their partners using the sample conversation in the box on the right.Step 4 Listening practice2a Lead-in: What will happen if you get to school late? What about Peter? Let’s listen to a conversation between Peter and his father. Get Ss to finish 2a (As usual, for the first time, Ss only listen.) Check the answers.
人教版新目標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椤Ｒ髮W生掌握表達某物或某事給人帶來的感覺、看法或影響等。共設(shè)計了四個部分的內(nèi)容：Section A 該部分有4個模塊：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）訓練；第二模塊圍繞How does music affect you? 進行聽力（2a-2b）、口語訓練（2c）；第三模塊繼續(xù)圍繞how do colors in the restaurant affect you這一話題展開訓練，訓練形式為閱讀和問題體驗（3a）和小組活動（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）兩種形式展開訓練；第二模塊繼續(xù)圍繞How do things affect you? 進行聽力（2a-2b）、口語對話訓練（2c）；第三模塊圍繞“Advertising”這一話題展開閱讀（3a-3b）和寫作（3c）訓練；第四模塊圍繞How posters affect you這一話題以口語訓練形式展開小組活動。
人教版新目標初中英語九年級上冊I like music that I can dance to教案
教學目標: 1. Express preferences2. Talk about one’s likes and dislikes and the reasons3. Learn to express one’s opinions 4. Learn to write a reply 語言功能： 1) Talk about one’s preferences, using t he relative clause2) Talk about people’s likes and dislikes and the reasons3) Talk about opinions語言結(jié)構(gòu)： Relative clauses with that and who語言目標：What kind of music do you like?I like music that I can sing along with.I love singers who write their own music.We prefer music that has great lyric.重點詞匯及短語：heart, photography, interest, class, whatever, miss, okay, expect, sweet, taste, itself, laboratory, cancer, increase, biscuit, main, care， prefer… to…, remind somebody of …, dance to, sing along with, be sure to, interest somebody, make somebody adj., to be honest, suit somebody, on display, catch up教學重難點：What do other people think of the different kinds of things? How to express one’s opinions? 學習方式：討論，合作學習情感目標：通過本單元的學習，能提高學生的藝術(shù)鑒賞能力和審美情趣，并引導(dǎo)學生養(yǎng)成健康的飲食習慣。課時安排5課時第一課時：Section A: 1a-2c第二課時：Section A : 3a-4第三課時：Section B:1-2c, Self check2第四課時：Section B: 3a-4, Self check1第五課時：Self check ReadingI like music that I can dance to.
人教版新目標初中英語九年級上冊It must belong to Carla教案
一、Section A該部分有4個模塊。第一模塊圍繞Whose volleyball is this? 這一話題展開思維（ 1a）、聽力（1b）、口語（ 1c）訓練；第二模塊圍繞上一模塊中的話題進行聽力（ 2a-2b）、口語訓練（ 2c）；第三模塊繼續(xù)圍繞前兩個模塊中的“making inferences”展開訓練。訓練形式為閱讀排序（ 3a）和兩人問答（3b）；第四模塊仍就上一話題展開討論。二、Section B該部分有4個模塊。第一模塊要求根據(jù)圖畫和所提供的單詞寫出合理的句子；第二模塊在聽力（ 2a-2b）和分角色口語訓練（ 2c）的基礎(chǔ)上，繼續(xù)進行“推測”訓練; 第三模塊圍繞“Strange events in Bell Tower neighborhood”這一話題展開閱讀（ 3a）和寫作（3b -3c）訓練；第四模塊以dream為話題展開小組活動。三、Self Check該部分有3個模塊。第一模塊以填空形式對所學詞匯進行訓練；第二模塊就8個諺語展開閱讀和討論。
人教版新目標初中英語七年級上冊My favorite subject is science教案
本單元主要學習一周中星期一到星期天的表達方式；掌握學科的表達；學習用because和表示品質(zhì)的形容詞表示理由；學習what，why，who引導(dǎo)的特殊疑問句。本單元圍繞“談?wù)撟约核矚g的學科”這一話題，設(shè)計了三個任務(wù)型活動：任務(wù)一是：談?wù)撟约核矚g的學科，學習what引導(dǎo)的特殊疑問句和學科的表達；任務(wù)二是：一分鐘演講，讓學生介紹自己喜歡某一學科的理由，學習why等特殊疑問句；任務(wù)三是：寫信，鞏固和延伸所學知識，掌握星期的表達方式。單元知識系統(tǒng)(樹)What’s your／his／her favorite subject? My／His／Her favorite subject is English.Why do you like math． Because it’s interesting．Why does he／she like art? Because it’s fun．When do you have math? I have math 0n Monday，Wednesday and Friday．What’s Ken’s favorite subject? Science．單元總體目標通過本單元的學習使學生學會談?wù)撟约合埠玫膶W科或自己喜好的其它事情并給出理由；學會說出一周的七天；學會合理地安排自己的作息時間。
人教版新目標初中英語七年級上冊How much are these pants教案
個性練習設(shè)計 閱讀廣告：在日常生活中，人們?nèi)ベI東西之前，一般要閱讀廣告，從廣告中獲取該商品的一些有用信息，包括價格、性能等。所以給學生提供有些商品的廣告或讓學生去商店去閱讀一些商品的廣告，從中獲取商品的價格，即可以鍛煉學生的閱讀能力，又能提高實踐能力。 Self Check 教學內(nèi)容 Self Check(教材P42) 教學目標 知識與能力 復(fù)習詞匯pant，sock，T-shirt，sweater，shoes，color，black，white，red，green，blue，big，short，long，數(shù)字10--31； 學習詞匯Zig Zag，clothes，shop，yellow，ask，which；學會談?wù)摲b的價格、顏色、大小和長短；學會填寫價格標簽。 過程與方法 運用Summarizing和Classifying的學習策略。在復(fù)習教學中，運用聽寫、繪畫、互相詢問調(diào)查與檢測等手段，促使學生不斷地使用所學內(nèi)容，從而提高他們靈活運用知識的能力。 情感態(tài)度價值觀 該部分學習內(nèi)容主要是復(fù)習談?wù)摲b的價格和顏色以及對服裝的喜好，能引起學生的共鳴；通過購物的對話練習教學生學會購物時使用的禮貌用語和如何感謝人。
人教版新目標初中英語七年級上冊What’s this in English教案
一、知識和能力目標本單元的核心教學內(nèi)容是“認物”。用英語確認周圍的常見事物比較符合英語初學者的實際情況。通過本單元教學，使學生運用所學句型，去熟悉周圍事物的名稱；教學生學會在實際生活中如何確認事物。通過辨認物體，學生學到一些生詞，并鞏固所學句型。二、過程和方法目標教師要盡量使學生對課文中出現(xiàn)的句型能夠熟練上口，這樣，學生才能順利開展比較靈活的對話。教師可以用手勢，表情，動作等示意，幫助學生聽懂課堂教學內(nèi)容，但在實際操作中應(yīng)盡量避免“明知故問”的傾向，應(yīng)該采用應(yīng)用性原則；如：遮蓋物品、顯露局部、辨認物體、完形識別、圖形辨認等方法。三、情感態(tài)度和價值觀目標目標在學生學習過程中的作用至關(guān)重要，教師要幫助他們建立起一個切合自己實際的目標，通過漸進的學習以及一點一滴的進步，使他們逐步建立起成功感。成功越多，自信心就越強。
初中數(shù)學冀教版八年級下冊《正方形》說課稿
二、學習新知1.正方形的定義在這一環(huán)節(jié)中，學生很容易犯的一個錯誤就是條件重復(fù)。這時我會引導(dǎo)學生從畫圖入手，提示他們：你能不能減少條件畫出正方形呢？這一環(huán)節(jié)中我的觀點是正方形的定義不是唯一的。我們可以從不同的角度來總結(jié)，只要合理就加以肯定。比如當學生總結(jié)出：四個角都是直角，四條邊都相等的四邊形是正方形。這時可以提醒學生是不是一定要四條邊都相等，減少邊的條數(shù)可以畫出來嗎？角的個數(shù)可以減少嗎？鼓勵學生動手試一試。通過動手畫圖可以很容易的得到正方形的一個定義：三個角都是直角，一組鄰邊都相等的四邊形是正方形。通過小組討論的形式來完成這一環(huán)節(jié)的設(shè)置。鼓勵學生利用現(xiàn)有的材料繼續(xù)構(gòu)造正方形。從另一個角度總結(jié)正方形的定義。
