-
人教版新目標(biāo)初中英語(yǔ)七年級(jí)上冊(cè)What’s this in English教案
一、知識(shí)和能力目標(biāo)本單元的核心教學(xué)內(nèi)容是“認(rèn)物”。用英語(yǔ)確認(rèn)周?chē)某Ｒ?jiàn)事物比較符合英語(yǔ)初學(xué)者的實(shí)際情況。通過(guò)本單元教學(xué)，使學(xué)生運(yùn)用所學(xué)句型，去熟悉周?chē)挛锏拿Q(chēng)；教學(xué)生學(xué)會(huì)在實(shí)際生活中如何確認(rèn)事物。通過(guò)辨認(rèn)物體，學(xué)生學(xué)到一些生詞，并鞏固所學(xué)句型。二、過(guò)程和方法目標(biāo)教師要盡量使學(xué)生對(duì)課文中出現(xiàn)的句型能夠熟練上口，這樣，學(xué)生才能順利開(kāi)展比較靈活的對(duì)話。教師可以用手勢(shì)，表情，動(dòng)作等示意，幫助學(xué)生聽(tīng)懂課堂教學(xué)內(nèi)容，但在實(shí)際操作中應(yīng)盡量避免“明知故問(wèn)”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(rèn)物體、完形識(shí)別、圖形辨認(rèn)等方法。三、情感態(tài)度和價(jià)值觀目標(biāo)目標(biāo)在學(xué)生學(xué)習(xí)過(guò)程中的作用至關(guān)重要，教師要幫助他們建立起一個(gè)切合自己實(shí)際的目標(biāo)，通過(guò)漸進(jìn)的學(xué)習(xí)以及一點(diǎn)一滴的進(jìn)步，使他們逐步建立起成功感。成功越多，自信心就越強(qiáng)。
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)How do you make a banana milk shake教案2篇
1. First, ... then, ... next, ... finally, ...首先，……然后，……接著，……最后，……這是英語(yǔ)中表達(dá)做某事的步驟的一種說(shuō)法。如果步驟較多，還可以說(shuō)：first-next-after that-later on-finally/at last通常你會(huì)聽(tīng)到說(shuō)英語(yǔ)國(guó)家的人在說(shuō) first, next, then, finally 和后面的內(nèi)容時(shí)，他們會(huì)做一些停頓。這樣就能提前告訴聽(tīng)者接下來(lái)講的是一系列的步驟。這一點(diǎn)在朗讀和聽(tīng)力中應(yīng)特別注意。2. how many, how much均為疑問(wèn)詞，同是“多少”，但用法不同。請(qǐng)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(cuò)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(yǔ)，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(shí)，謂語(yǔ)動(dòng)詞用單數(shù)。how many與how much的區(qū)別可簡(jiǎn)記為：前how many：?jiǎn)枴岸嗌佟?，?fù)數(shù)名詞后面跑；how much問(wèn)“多少”，不可數(shù)名詞單數(shù)好。前者答語(yǔ)用基數(shù)詞，后者答語(yǔ)用數(shù)量關(guān)系。
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)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(biāo)初中英語(yǔ)八年級(jí)上冊(cè)How do you get to school教案2篇
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(chē)站 transportation n. 運(yùn)送；運(yùn)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.
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)What’s the best radio station教案2篇
教學(xué)重點(diǎn)和難點(diǎn)：運(yùn)用所掌握的語(yǔ)言描述，比較不同地點(diǎn)的特點(diǎn)。在練習(xí)中學(xué)習(xí)掌握英語(yǔ)比較級(jí)和最高級(jí)的用法。課前準(zhǔn)備分配小組,每組五至六人。通過(guò)上網(wǎng)或翻閱報(bào)刊雜志等方法，確定旅游線路，做出基本的旅游計(jì)劃。教學(xué)設(shè)計(jì)：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(dòng)獲取知識(shí)，養(yǎng)成良好的學(xué)習(xí)方法。逐步學(xué)會(huì)獨(dú)立解決問(wèn)題?？傊M可能調(diào)動(dòng)學(xué)生的非智力因素促進(jìn)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(dòng)學(xué)生的學(xué)習(xí)積極性，使學(xué)生變被動(dòng)學(xué)習(xí)為主動(dòng)學(xué)習(xí)。通過(guò)電腦形象的演示，加強(qiáng)印象，提高興趣，突破難點(diǎn)，提高教學(xué)效率，進(jìn)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。
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)What’s the matter教案2篇
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(shí)也可以讓他們復(fù)習(xí)一部分的表示人體部位的單詞,擴(kuò)充知識(shí).學(xué)習(xí)語(yǔ)言的過(guò)程也是一個(gè)不斷積累的過(guò)程,復(fù)習(xí)舊知識(shí),增添新知識(shí).通過(guò)小游戲,強(qiáng)化學(xué)生對(duì)Does she/he have…這個(gè)句子的運(yùn)用能力.通過(guò)復(fù)習(xí)，自然的引到下面新知識(shí)的學(xué)習(xí)。充分利用表格,由句子到對(duì)話,再到文章,讓學(xué)生循序漸進(jìn). 提高學(xué)生的綜合語(yǔ)言運(yùn)用能力,運(yùn)用以前學(xué)過(guò)的知識(shí)來(lái)解決身邊的問(wèn)題.Period 5 (Section B 3a—3c, selfcheck)教學(xué)內(nèi)容與分析:
人教版新目標(biāo)初中英語(yǔ)九年級(jí)上冊(cè)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(biāo)初中英語(yǔ)九年級(jí)上冊(cè)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(xué)會(huì)used to結(jié)構(gòu)。Used to +動(dòng)詞原形表示過(guò)去經(jīng)常、以前常常，只用于過(guò)去式中，用來(lái)表示現(xiàn)在已不存在的習(xí)慣或狀態(tài)。例如：They used to play football together．他們過(guò)去常在一起蹋足球。（現(xiàn)在不在一起踢了)2．used to的疑問(wèn)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(guò)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(xué)目標(biāo)一、學(xué)習(xí)目標(biāo)（Language Goal） 1．學(xué)會(huì)陳述自己過(guò)去常做的事情。2．學(xué)會(huì)陳述自己過(guò)去的愛(ài)好等。3．能夠表達(dá)自己現(xiàn)在和過(guò)去在外表、性格、娛樂(lè)等方面的變化。4．能夠表達(dá)朋友、家人等現(xiàn)在和過(guò)去的變化。二、語(yǔ)言結(jié)構(gòu)（Language Structures） 1．I used to be short when I was young. 我年輕時(shí)個(gè)子很矮。 2． —Did you use to have straight hair? 你過(guò)去是直發(fā)嗎？—Yes, I did. 是的。 3． —Did you use to play the piano? 你過(guò)去彈鋼琴嗎？—No, I didn’t. 不，我不彈。 4．I used to be afraid of dark. 我過(guò)去害怕黑暗。 5．I’m terrified of the snakes. 我害怕蛇。
人教版新目標(biāo)初中英語(yǔ)九年級(jí)上冊(cè)How do you study for a test教案2篇
內(nèi)容提示本單元主要內(nèi)容是學(xué)會(huì)利用verb十by／with gerund表示方式方法來(lái)討論學(xué)習(xí)英語(yǔ)的策略，認(rèn)識(shí)自己在學(xué)習(xí)方面的長(zhǎng)處和不足。初步了解現(xiàn)在完成時(shí)的結(jié)構(gòu)和用法?，F(xiàn)在完成時(shí)由助動(dòng)詞have／has+動(dòng)詞的過(guò)去分詞構(gòu)成，主要表示過(guò)去發(fā)生的某一動(dòng)作對(duì)現(xiàn)在仍有影響或造成的后果，常與already，yet，just，ever，never等副詞連用。教學(xué)目標(biāo)一、學(xué)習(xí)目標(biāo)（Language Goal） 1. Talk about how to study . 學(xué)會(huì)討論各種學(xué)習(xí)方法和策略。2. Find out your suitable learning methods. 找出適合自己的學(xué)習(xí)方法。 二、語(yǔ)言結(jié)構(gòu)（Language Structures） 1. Verb + by with gerund by＋動(dòng)名詞短語(yǔ) 表示“通過(guò)…途徑，方法” 2. How questions have引導(dǎo)的特殊疑問(wèn)句 三、目標(biāo)語(yǔ)言（Target Language） 1. How do you study for tests ? 你是怎樣準(zhǔn)備考試的？Well , I study by working with my classmates. 哦，我和同學(xué)們一起學(xué)習(xí)。2. Have you ever studied with a group ? 你曾經(jīng)參加過(guò)學(xué)習(xí)小組嗎？Yes , I have . I’ve learned a lot that way . 是的，參加過(guò)。通過(guò)這種方式我學(xué)了許多。
人教版新目標(biāo)初中英語(yǔ)九年級(jí)上冊(cè)It must belong to Carla教案
一、Section A該部分有4個(gè)模塊。第一模塊圍繞Whose volleyball is this? 這一話題展開(kāi)思維（ 1a）、聽(tīng)力（1b）、口語(yǔ)（ 1c）訓(xùn)練；第二模塊圍繞上一模塊中的話題進(jìn)行聽(tīng)力（ 2a-2b）、口語(yǔ)訓(xùn)練（ 2c）；第三模塊繼續(xù)圍繞前兩個(gè)模塊中的“making inferences”展開(kāi)訓(xùn)練。訓(xùn)練形式為閱讀排序（ 3a）和兩人問(wèn)答（3b）；第四模塊仍就上一話題展開(kāi)討論。二、Section B該部分有4個(gè)模塊。第一模塊要求根據(jù)圖畫(huà)和所提供的單詞寫(xiě)出合理的句子；第二模塊在聽(tīng)力（ 2a-2b）和分角色口語(yǔ)訓(xùn)練（ 2c）的基礎(chǔ)上，繼續(xù)進(jìn)行“推測(cè)”訓(xùn)練; 第三模塊圍繞“Strange events in Bell Tower neighborhood”這一話題展開(kāi)閱讀（ 3a）和寫(xiě)作（3b -3c）訓(xùn)練；第四模塊以dream為話題展開(kāi)小組活動(dòng)。三、Self Check該部分有3個(gè)模塊。第一模塊以填空形式對(duì)所學(xué)詞匯進(jìn)行訓(xùn)練；第二模塊就8個(gè)諺語(yǔ)展開(kāi)閱讀和討論。
人教版新目標(biāo)初中英語(yǔ)九年級(jí)上冊(cè)Where would you like to visit教案2篇
The First PeriodⅠ．Teaching Aims and DemandsKnowledge Objects（1） Key Vocabularytiring, educational, fascinating, thrilling, peaceful, exotic, trek, jungle, take it easy, explore, historic, site（2） Target LanguageWhere would you like to go on vacation?I’d like to trek through the jungle, because I like exciting vacations．2． Ability Objects（1）Train students to talk about places they would like to visit with the target language．（2）Train students to describe vacations with different adjectives．（3）Train students' listening skill．3． Moral Object,It′s more interesting to go on vacating somewhere instead of staying at home．Ⅱ． Teaching Key Points1． Key Vocabularytiring, educational, fascinating, thrilling, peaceful, exotic, trek, jungle, take it easy, explore, historic, site2． Target LanguageTalk about different places with the target language．Ⅲ． Teaching Difficult Points1． Describe vacations with different adjectives．2． Talk about different places with the target language．Ⅳ． Teaching Methods1． Teaching by illumination2． Teaching by doing chain drills3． Teaching by pairworkⅤ． Teaching Aids1． A tape recorder2． Some pictures of different places with famous views
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)Can you come to my party教案3篇
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.
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)What are you doing for vacation教案2篇
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(jìn)行時(shí)表示將來(lái)計(jì)劃或行動(dòng). 4. 特殊疑問(wèn)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(chēng)練習(xí)對(duì)話.
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)I’m going to be a basketball player教案3篇
教學(xué)目標(biāo)1.知識(shí)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(huì)用英語(yǔ)描述有關(guān)職業(yè)的表達(dá)法。2.能力目標(biāo)：（1）能夠談?wù)摓閷?shí)現(xiàn)理想所做出的打算和安排。（2）能夠談?wù)撐磥?lái)自己與他人理想的職業(yè)及原因。（3）能用英語(yǔ)描述課余時(shí)間的活動(dòng)安排，最終具備表達(dá)綜合信息的能力。3.情感目標(biāo)：新學(xué)期到來(lái)之際，讓他們?cè)趯W(xué)習(xí)、體育、飲食、特長(zhǎng)、讀書(shū)等方面制定計(jì)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(diǎn)、難點(diǎn)本單元的重點(diǎn)為“be going to”表將來(lái),want to be, what,where, when,how引導(dǎo)的特殊疑問(wèn)句。難點(diǎn)是語(yǔ)言目標(biāo)的實(shí)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(jì)了三部分的內(nèi)容：一、Section A該部分有4個(gè)模塊。第一模塊圍繞Do you think these jobs are interesting?這一話題展開(kāi)思維（1a）、聽(tīng)力（1b）、口語(yǔ)（1c）訓(xùn)練；
人教版新目標(biāo)初中英語(yǔ)八年級(jí)上冊(cè)I’m more outgoing than my sister教案2篇
1 交通工具的比較此活動(dòng)為小組活動(dòng)。學(xué)生通過(guò)討論找出到達(dá)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(kāi)活動(dòng)，談?wù)摫窘M所選擇的交通工具。（2）各組選代表向全班匯報(bào)，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(yǔ)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(gè)城市更合適？此活動(dòng)具有挑戰(zhàn)性。假設(shè)中國(guó)要舉行2014年世界杯足球賽，分別從歷史，人文，天氣等方面對(duì)各城市（北京，大連，上海，昆明）進(jìn)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(biāo)初中英語(yǔ)九年級(jí)上冊(cè)I like music that I can dance to教案
教學(xué)目標(biāo): 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(yǔ)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(yǔ)言結(jié)構(gòu)： Relative clauses with that and who語(yǔ)言目標(biāo)：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(diǎn)詞匯及短語(yǔ)：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(xué)重難點(diǎn)：What do other people think of the different kinds of things? How to express one’s opinions? 學(xué)習(xí)方式：討論，合作學(xué)習(xí)情感目標(biāo)：通過(guò)本單元的學(xué)習(xí)，能提高學(xué)生的藝術(shù)鑒賞能力和審美情趣，并引導(dǎo)學(xué)生養(yǎng)成健康的飲食習(xí)慣。課時(shí)安排5課時(shí)第一課時(shí)：Section A: 1a-2c第二課時(shí)：Section A : 3a-4第三課時(shí)：Section B:1-2c, Self check2第四課時(shí)：Section B: 3a-4, Self check1第五課時(shí)：Self check ReadingI like music that I can dance to.
北師大初中數(shù)學(xué)八年級(jí)上冊(cè)二次根式的運(yùn)算1教案
1．會(huì)用二次根式的四則運(yùn)算法則進(jìn)行簡(jiǎn)單地運(yùn)算；(重點(diǎn))2．靈活運(yùn)用二次根式的乘法公式．(難點(diǎn))一、情境導(dǎo)入下面正方形的邊長(zhǎng)分別是多少？這兩個(gè)數(shù)之間有什么關(guān)系，你能借助什么運(yùn)算法則或運(yùn)算律解釋它？二、合作探究探究點(diǎn)一：二次根式的乘除運(yùn)算【類(lèi)型一】 二次根式的乘法計(jì)算：(1)3×5； (2)13×27；(3)2xy×1x； (4)14×7.解：(1)3×5＝15；(2)13×27＝13×27＝9＝3；(3)2xy×1x＝2xy×1x＝2y；(4)14×7＝14×7＝72×2＝72.方法總結(jié)：幾個(gè)二次根式相乘，把它們的被開(kāi)方數(shù)相乘，根指數(shù)不變，如果積含有能開(kāi)得盡方的因數(shù)或因式，一定要化簡(jiǎn)．【類(lèi)型二】 二次根式的除法計(jì)算a2－2a÷a的結(jié)果是()A.－a－2 B．－－a－2C.a－2 D．－a－2解析：原式＝a2－2aa＝a（a－2）a＝a－2.故選C.
北師大初中數(shù)學(xué)九年級(jí)上冊(cè)一元二次方程的解及其估算2教案
探索1：上節(jié)我們列出了與地毯的花邊寬度有關(guān)的方程。地毯花邊的寬x(m)，滿足方程 (8―2x)(5―2x)=18也就是：2x2―13x+11=0你能估算出地毯花邊的寬度x嗎？（1）x可能小于0嗎？說(shuō)說(shuō)你的理由；_____________________________.（2）x可能大于4嗎？可能大于2.5嗎？為什么？（3）完成下表x 0 0.5 1 1.5 2 2.52x2-13x+11 （4）你知道地毯花邊的寬x(m)是多少嗎？還有其他求解方法嗎？與同伴交流。探索2：梯子底端滑動(dòng)的距離x(m)滿足方程(x+6)2+72=102，也就是x2+12x―15=0（1）你能猜出滑動(dòng)距離x(m)的大致范圍嗎？（2）x的整數(shù)部分是_____？十分位是_______？x 0 x2+12x-15 所以 ___<x<___進(jìn)一步計(jì)算x x2+12x-15 所以 ___<x<___因此x 的整數(shù)部分是___,十分位是___.三、當(dāng)堂訓(xùn)練：完成課本34頁(yè)隨堂練習(xí)四、學(xué)習(xí)體會(huì)：五、課后作業(yè)
北師大初中數(shù)學(xué)八年級(jí)上冊(cè)二次根式的運(yùn)算2教案
1．關(guān)于二次根式的概念，要注意以下幾點(diǎn)：（1）從形式上看，二次根式是以根號(hào)“ ”表示的代數(shù)式，這里的開(kāi)方運(yùn)算是最后一步運(yùn)算。如 ， 等不是二次根式，而是含有二次根式的代數(shù)式或二次根式的運(yùn)算；（2）當(dāng)一個(gè)二次根式前面乘有一個(gè)有理數(shù)或有理式（整式或分式）時(shí)，雖然最后運(yùn)算不是開(kāi)方而是乘法，但為了方便起見(jiàn)，我們把它看作一個(gè)整體仍叫做二次根式，而前面與其相乘的有理數(shù)或有理式就叫做二次根式的系數(shù)；（3）二次根式的被開(kāi)方數(shù)，可以是某個(gè)確定的非負(fù)實(shí)數(shù)，也可以是某個(gè)代數(shù)式表示的數(shù)，但其中所含字母的取值必須使得該代數(shù)式的值為非負(fù)實(shí)數(shù)；（4）像“ ， ”等雖然可以進(jìn)行開(kāi)方運(yùn)算，但它們?nèi)詫儆诙胃健?．二次根式的主要性質(zhì)（1） ； （2） ； （3） ；（4）積的算術(shù)平方根的性質(zhì)： ；（5）商的算術(shù)平方根的性質(zhì)： ；
北師大初中數(shù)學(xué)九年級(jí)上冊(cè)一元二次方程的解及其估算1教案
方法總結(jié)：(1)利用列表法估算一元二次方程根的取值范圍的步驟是：首先列表，利用未知數(shù)的取值，根據(jù)一元二次方程的一般形式ax2＋bx＋c＝0(a，b，c為常數(shù)，a≠0)分別計(jì)算ax2＋bx＋c的值，在表中找到使ax2＋bx＋c可能等于0的未知數(shù)的大致取值范圍，然后再進(jìn)一步在這個(gè)范圍內(nèi)取值，逐步縮小范圍，直到所要求的精確度為止．(2)在估計(jì)一元二次方程根的取值范圍時(shí)，當(dāng)ax2＋bx＋c(a≠0)的值由正變負(fù)或由負(fù)變正時(shí)，x的取值范圍很重要，因?yàn)橹挥性谶@個(gè)范圍內(nèi)，才能存在使ax2＋bx＋c＝0成立的x的值，即方程的根．三、板書(shū)設(shè)計(jì)一元二次方程的解的估算，采用“夾逼法”：(1)先根據(jù)實(shí)際問(wèn)題確定其解的大致范圍；(2)再通過(guò)列表，具體計(jì)算，進(jìn)行兩邊“夾逼”，逐步獲得其近似解．“估算”在求解實(shí)際生活中一些較為復(fù)雜的方程時(shí)應(yīng)用廣泛．在本節(jié)課中讓學(xué)生體會(huì)用“夾逼”的思想解決一元二次方程的解或近似解的方法．教學(xué)設(shè)計(jì)上，強(qiáng)調(diào)自主學(xué)習(xí)，注重合作交流，在探究過(guò)程中獲得數(shù)學(xué)活動(dòng)的經(jīng)驗(yàn)，提高探究、發(fā)現(xiàn)和創(chuàng)新的能力.