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新人教版高中英語必修3Unit 5 The value of money-Reading and Thinking教學設計二
? Could you offer me some kind of work here?? I don’t want your charity, I just want an honest job.? Careless: I landed in Britain by accident.Step 7:Consolidation.? Find Henry? Roderick and Oliver were I .making a bet when they saw Henry, a poor young man. ? Know Henry? About a month ago, Henry was sailing and later he found himself carried out to sea by a strong wind. Fortunately, he 2.was spotted by a ship. And it was the ship that brought him to 3.England? Offer money to Henry ? Oliver and Roderick gave Henry a letter and told him that there was money in it. They 4.persuaded him to accept it, and made him 5.promise that it wouldn't be opened until 2 o'clock.Step 8：Language pointsa large amount of: a large quantity of; a great deal ofe.g. They bought a large amount of furniture before they moved their new house.make a bet: make an arrangement to risk money, etc. on an event of which the result is doubtful.e.g. We made a bet on the result of the match.permit sb to do something: allow somebody to do somethinge.g. My mother doesn’t permit me to ride in the street after it rained.by accident: as a result of chancee.g. I only found it by accident.stare at: look at somebody or something with the eyes wide open in a fixed gaze( in astonishment, wonder, fear, etc)to be honest: to tell you the truth; to be franke.g. To be honest, I don’t think we have a chance of winning.Step7 Homework:What do you think will happen to Henry? Will the bank-note help him or get him into trouble?
新人教版高中英語必修3Unit 5 The Value of Money-Listening &Speaking＆Talking教學設計
4. A：We’d like to have someone to say a word at the beginning to welcome the group.B：↙Who?A：We thought that you or Dr.Johnson might do it.B用降調(diào)說Who，其意思是問，對方想讓誰在開場時致歡迎詞。Step 6 Pronunciation---Practice1. Listen to the short conversation and mark the intonation with ↗, ↙ or ↙, ↗. Then discuss with a partner what they intend to convey by using different intonation.Owner: You know what ?↗ It’s a million-pound bank note↙.Waiter 1: Really ?↗(question)Waiter 2: Really !↙(unbelievable and surprised)Waiter 3: Really ?!↙↗(first question then surprised)2. Listen to the conversations. Underline the parts that are stressed and mark the intonation. Then talk about the implied meanings of the responses with different intonations. Listen again and repeat.1) Henry: It’s a nice suit.Owner: Oh, it’s perfect!↙(The intonation means it is very suitable for Henry.)2) Henry: Well, that’s very kind of you.Owner: Kind, sir ?↗(what you said is not right) No, it’s kind of you. You must come whenever you want and have whatever you like. Just having you sit here is a great honour !!↙(welcome you to come again)3)Henry:Well, to be honest, I have none. Oliver:(happily) What luck!(excited) Brother↗, what luck!↙(It means “Didn’t you hear it?”)Henry: Well, it may seem lucky to you but not to me!↗(angry) If this is your idea of some kind of joke, I don’t think it’s very funny. Now if you’ll excuse me, I ought to be on my way.↙(If so, I would leave.)Roderick: Please don’t go↙...(hope Henry can wait for a moment)Part B Viewing and Talking---Describe people’s changing attitudes in a film clipStep 1 Before-listening---Tell the filmYou are going to watch part of the film The Million Pound Bank Note. Look at these photos and guess what happens in the film.
人教A版高中數(shù)學必修一誘導公式教學設計（1）
一、復習回顧，溫故知新1. 任意角三角函數(shù)的定義【答案】設角 它的終邊與單位圓交于點 。那么（1） （2） 2.誘導公式一 ，其中， 。終邊相同的角的同一三角函數(shù)值相等二、探索新知思考1：（1）.終邊相同的角的同一三角函數(shù)值有什么關系?【答案】相等（2）.角 -α與α的終邊 有何位置關系?【答案】終邊關于x軸對稱（3）.角 與α的終邊 有何位置關系?【答案】終邊關于y軸對稱（4）.角 與α的終邊 有何位置關系?【答案】終邊關于原點對稱思考2： 已知任意角α的終邊與單位圓相交于點P(x, y),請同學們思考回答點P關于原點、x軸、y軸對稱的三個點的坐標是什么?【答案】點P(x, y)關于原點對稱點P1(-x, -y)點P(x, y)關于x軸對稱點P2(x, -y) 點P(x, y)關于y軸對稱點P3(-x, y)
人教A版高中數(shù)學必修一對數(shù)的運算教學設計（1）
本節(jié)課是新版教材人教A版普通高中課程標準實驗教科書數(shù)學必修1第四章第4.3.2節(jié)《對數(shù)的運算》。其核心是弄清楚對數(shù)的定義，掌握對數(shù)的運算性質(zhì)，理解它的關鍵就是通過實例使學生認識對數(shù)式與指數(shù)式的關系，分析得出對數(shù)的概念及對數(shù)式與指數(shù)式的 互化，通過實例推導對數(shù)的運算性質(zhì)。由于它還與后續(xù)很多內(nèi)容，比如對數(shù)函數(shù)及其性質(zhì),這也是高考必考內(nèi)容之一，所以在本學科有著很重要的地位。解決重點的關鍵是抓住對數(shù)的概念、并讓學生掌握對數(shù)式與指數(shù)式的互化；通過實例推導對數(shù)的運算性質(zhì)，讓學生準確地運用對數(shù)運算性質(zhì)進行運算，學會運用換底公式。培養(yǎng)學生數(shù)學運算、數(shù)學抽象、邏輯推理和數(shù)學建模的核心素養(yǎng)。1、理解對數(shù)的概念，能進行指數(shù)式與對數(shù)式的互化；2、了解常用對數(shù)與自然對數(shù)的意義，理解對數(shù)恒等式并能運用于有關對數(shù)計算。
人教A版高中數(shù)學必修一任意角教學設計（1）
本節(jié)課選自《普通高中課程標準數(shù)學教科書-必修一》（人 教A版）第五章《三角函數(shù)》，本節(jié)課是第1課時，本節(jié)主要介紹推廣角的概念,引入正角、負角、零角的定義，象限角的概念以及終邊相同的角的表示法。樹立運動變化的觀點,并由此進一步理解推廣后的角的概念。教學方法可以選用討論法,通過實際問題，如時針與分針、體操等等都能形成角的流念,給學生以直觀的印象,形成正角、負角、零角的概念,明確規(guī)定角的概念，通過具體問題讓學生從不同角度理解終邊相同的角,從特殊到一般歸納出終邊相同的角的表示方法。A.了解任意角的概念；B.掌握正角、負角、零角及象限角的定義，理解任意角的概念；C.掌握終邊相同的角的表示方法；D.會判斷角所在的象限。 1.數(shù)學抽象：角的概念；2.邏輯推理：象限角的表示；3.數(shù)學運算：判斷角所在象限；4.直觀想象：從特殊到一般的數(shù)學思想方法；
新人教版高中英語必修1Unit 3 Sports and Fitness-Reading for Writing教案
Then have them write a short paragraph to describe and explain their changes. After that, get the Ss to exchange their drafts with their partners and use the checklist to give feedback on their drafts, and finally revise it.Step 5 Summary of how to write a wellness book1.健康書的審題步驟：第一步：明確要求該寫作屬于經(jīng)驗分享，故要用第一人稱來寫;時態(tài)以一股現(xiàn)在時為主。第二步：確定段落該類文章可以從以下三個方面人手:Para.1首先表明寫作的目的Para.2自己的做法及心得體會Para.3表示期望及感謝第三步：提煉要點2.健康書常見句式：1) It is an honor for me to share my favorite sport with you,2) It makes me feel relaxed playing with my friends.3) It makes me rid myself of stress while playing with my friends.4) Moreover, it provides me a valuable chance to communicate with others.5) I we eat too little or too much, or if we choose the wrong food, we may become sick.6) We can do something to change the poor situation.Step 6Homework假如你的老師讓你在班級Wellness Bok上分享自己的親身經(jīng)歷及心得，請根據(jù)以下要點寫一篇80字左右的文章1. 你喜歡的運動是什么？2. 你最喜歡的原因是什么？3. 你參加鍛煉的體會。
新人教版高中英語必修2Unit 3 The Internet-Reading For Writing教案一
⑦identity theft 身份盜竊⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 張貼尷尬照片 【話題句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在網(wǎng)上保持安全, 避免在網(wǎng)上的不良經(jīng)歷? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是專家, 但作為一個博主, 我已經(jīng)學了好幾年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或讀到一些讓你覺得不舒服的東西, 立即離開這個網(wǎng)站。4. Don’t give out your address or phone number. 別告訴別人你的地址或電話號碼。 5. Identity theft is a common and serious problem. 身份盜竊是一個常見而嚴重的問題。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上網(wǎng)并不是無禮的借口, 你也不想成為發(fā)挑釁帖子的人或網(wǎng)絡惡霸的目標。 7. Trolls often use several false names so that they can stay on a site. 發(fā)挑釁帖子的人經(jīng)常使用幾個假名, 這樣他們就可以留在一個網(wǎng)站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有禮貌, 你被攻擊的可能性就越小。
新人教版高中英語必修1Unit 1 Teenage Life-Reading for Writing教案
【教材分析】This teaching period mainly deals with reading for writing a letter of advice. Students are expected to learn the knowledge about how to write a suggestion letter. The teacher is expected to enable students to master some writing skills concerning suggestion letters and learn to write one.【教學目標與核心素養(yǎng)】1. Get students to have a good understanding of how to write a suggestion letter properly.2. Enable students to use some writing skills flexibly.3. Develop students’ writing and cooperating abilities.4. Strengthen students’ great interest in writing discourses.【教學重難點】1. How to enable students to have a good understanding of the skills of writing a suggestion letter2.How to enable students to write a good recommendation letter using some writing skills properly.【教學過程】Step 1: Lead in Begin the class with the lead-in questions: how to write a letter for advice? What kinds of aspects should be included? It is strongly recommended that the teacher should ask students to discuss the topic freely with their partners and brainstorm some ideas concerning the topic. In this way, students can come up with more ideas and avoid being nervous at the beginning of the class.Step 2: Read to discover details concerning advice letters’ writing style.The teacher is expected to ask students to read a letter offering some advice on page 18 silently and then request students to discuss the questions below.
新人教版高中英語必修1Unit 5 Languages Around the World-Reading for Writing教案
Step 3: Read to sum upRead it again and sum up the problems of the three students, and then write down the advice that was given from others.Step 4: Work in pairs. List your learning problems in English and brainstorm some useful advice.Useful expressions ? I don't know how to…... Is a big difficulty for me. I cannot ...? You might try …. It's very important to…? I have no idea how/what .My biggest problem is .... ? I (also) have trouble with. My advice is …. This worked for me.? l cannot understand the teachers’ English in class.Step 5 Homework：為提高我校學生的英語口語水平，我們將舉辦英語演講比賽(English- speaking contest)，請你根據(jù)下面的信息，以學生會(the Students‘ Union)的名義寫一份海報，歡迎全校同學參加，屆時特邀本校美籍教師史密斯先生頒獎。? 報名時間 9月30日以前(報名:signup)? 報名地點 學生會辦公室? 比賽時間 10月9日晚7:00~9:00? 比賽地點 學校大會議室? 獎勵 前8名
新人教版高中英語必修2Unit 1 Cultural Heritage-Reading For Writing教案
This report is short, concise and has typical news content and language features. The title uses the verb phrases, embodying the characteristics of being concise and general. The introduction is the first two sentences in the first paragraph, describing the general situation of the cultural heritage protection project, including time, place, characters, events and other news elements, so that readers can see the main points of the news report at a glance. The main body is the second and third paragraphs, which report the important historical and cultural value of Mogao Grottoes and the production of Mogao Grottoes Material digital photos, which are of great significance to the inheritance of historical culture and the promotion of international cultural understanding, exchange and cooperation. Direct citation is used in the report, as well as background introduction and other news writing techniques.1. Get students to have a good understanding of some features about a news report by reading the text.2. Instruct students to write a summary about a news report properly using some newly acquired writing skills in this period.3. Develop students’ writing and cooperating abilities.4. Strengthen students’ great interest in writing discourses.1. Stimulate students to have a good understanding of how to a summary about a news report 2. Cultivate students to write a news report properly and concisely.Step 1: Lead in Do you think it is necessary for us to circulate our cultural heritage to the world? Why or why not?Do we need to learn more about other countries’ cultural heritage? Why or why not?Step 2: Read to discover details concerning the main body of the news report.
新人教版高中英語必修1Unit 4 Natural Disasters- Reading for writing教案
①標題——標題應當簡潔明了。②導語——導語是消息開頭的第一段或第一句話，簡明扼要地揭示出消息的核心內(nèi)容。③主體——主體是消息的主要部分，要用充足的事實表現(xiàn)主題，對導語的內(nèi)容作進一步的展開和闡述。④結(jié)束語——通常是對全文內(nèi)容進行概括性的總結(jié)。3. 新聞報道增分句子（1）陳述事實常用的句型:①A terrible storm hit/struck ... , killing ..②It was a cool autumn night when the earthquake happened. A large number of buildings fell down and roads were destroyed, leaving a great many people homeless.地震發(fā)生在一個涼爽的秋夜。大量的建筑物倒塌，道路被毀,許多人無家可歸。③With the help of the rescue team, people who were the trapped in the flood were saved.在救援隊的幫助下，困在洪水中的人們得救了。（2）陳述觀點常用的句型:①Clearly/Obviously/In my opinion/It seemed that people were shocked.顯然/在我看來/似乎人們震驚了。②The whole city was in ruins after the earthquake.地震后整個城市成了一片廢墟。（3）揭示原因常用的句型:Because of/As a result of/Thanks to the help of the army, people who got injured were sent to the hospital immediately.
新人教版高中英語必修1Welcome Unit-Reading for Writing教案
教學目標知識目標：讓學生更好理解如何恰當?shù)貙懸粋€人的信息介紹，并能讓學生熟練地使用一些寫作技能。能力目標：培養(yǎng)學生的寫作能力和團隊協(xié)作能力。情感目標：提升學生對寫作的興趣。教學重難點 教學重點：如何能讓學生更好地理解個人信息介紹。教學難點：如何能讓學生通過適當?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個人信息介紹。教學準備 多媒體、黑板、粉筆一、Pre-class1. Greetings2. Leading-inAsk students how to write a profile. What kinds of aspects should be included? The teacher asks students to discuss the topic with each other and put forward to much more ideas about the answer.二、While-class1. The teacher lets students to read the student profiles on Page 8 silently and then asks students to discuss the questions below.1. What is Ann like? How do you know?2. What are Thando’s hobbies?3. Where does Thando come from?4. What is Thando’s dream?5. What does “You will never see me without a book or a pen” mean?
新人教版高中英語必修1Unit 2 Travelling Around-Reading for Writing教案
Is there a clear purpose for the trip? :Does each paragraph have a clear main idea? Does the writer use the present continuous tense for future plans?Does the writer use commas, stops, and question marks correctly? Are all the words spelt correctly?Are all the proper nouns capitalized?Revise your draft according to your partner's comments.Step 5:The summary of how to write a travel plan.旅游計劃是一種常見的應用文寫作。旅游可分為觀光游、文化游、美食游及探險游等不同類型，因此旅游計劃也要根據(jù)不同的旅游目的進行設計。常規(guī)的旅游計劃需要明確以下幾個方面的問題:Travel planWhen will you leave for？ Where is your the destination?How will you get there?What will you do there?How long will you there?Is there a clear purpose for the trip? 為了提升旅行計劃的層級，還需注意以下幾個方面的問題:1.每段是否有明確清晰的主題;2.用一般現(xiàn)在時代替一般將來時；3.用更高級的形容詞詞匯。例如:表達“好”時，不要總用“nice”,我們還可以用“smart, clean, excellent, exciting, beautiful, wonderful, clever, famous, grand”等表達更具有指向性的詞匯；4.用更高級的動詞詞匯。比如:我們可以用“seem stand, lie .get stay, remain, look . sound, become . keep, grow”等代替"be";
新人教版高中英語必修2Unit 2 Wildlife Protection-Reading For Writing教案一
1. 標題首先根據(jù)海報的特點、格式寫明標題。海報中往往把內(nèi)容作為大標題。例如: Save the earth, Save the birds。2. 正文部分不同的海報其正文部分的側(cè)重點不同。對于介紹性的海報, 首先要引出話題, 其次列出原因, 最后是總結(jié)。對于宣傳類的海報, 要寫明具體內(nèi)容, 如: 活動內(nèi)容, 地點以及參加活動的注意事項, 主持或舉辦單位等。1. 圖片: 要選擇引人注目的圖片, 與主題要相關, 色彩明亮。話題句式 1. It is a treasure of our country. 它是我國的國寶。2. Believe it or not, at present only several thousand pandas exist in the world. 信不信由你, 目前世界上僅現(xiàn)存幾千只熊貓。 3.It’s because of human activities that tigers are endangered. 正是因為人類的活動, 老虎處于瀕危的狀態(tài)。4. Many wild animals are in danger of dying out. 很多野生動物面臨著滅絕的危險。 5. The government has taken effective measures to protect them. 政府已采取有效的措施來保護它們。6. People should raise the awareness of the protection of wild animals. 人們應該提高保護野生動物的意識。 7. It’s amazing that there are merely less than 1, 000 finless porpoises living in China. 非常令人吃驚, 目前中國僅有不足1 000只江豚。
新人教版高中英語必修2Unit 5 Music-Reading For Writing教案一
(4)Now we have heard a number of outstanding speeches ... 我們已經(jīng)聆聽了許多精彩的發(fā)言……(5)Because we wanted the nations of the world, working together, to deal with ... 因為我們希望全世界各國團結(jié)起來去應對……(6)And if we do not act ... 如果我們不采取行動……(7)Now, I share the concerns that have been expressed ... 我也同意對于……表達的擔心(8)Let us show the world that by working together we can ... 讓我們告訴全世界，通過一起努力我們可以……(9)It is now time for us to ... 是時候我們……(10)And I have always wished that ... 我一直希望……(11)Thank you for letting me share this day with me.感謝你們和我共度這一天。實踐演練：假如你是高中生李華，你校將舉辦一次以“音樂”為主題的演講比賽，請你按照主題，寫下你的演講稿。注意：詞數(shù)100左右。First of all, thank you for listening to my speech. My topic is: love music like love yourself.Music is like the air we need to maintain our normal lives around us. You can't imagine how terrible a world without music would be. Movies and TV shows have no music, only dry conversations and scenes; mobile phones only vibrations; streets only noisy crowds; cafes, western restaurants only depressed meals. What a terrible world it is!As a student, I hope we all can enjoy the fun brought by music in our spare time. Instead of just listening to music, we can even make our own music. Let's enjoy the fun of music!Thanks again for your attention!
新人教版高中英語選修2Unit 3 Learning about Language教學設計
1. We'll need ten months at least to have the restaurant decorated.2.Some traditional Chinese dishes from before the Ming Dynasty are still popular today.3.My grandpa's breakfast mainly includes whole grain biscuits and a glass of milk.4.People in this area would eat nearly a kilo of cheese per week.5. We enjoyed a special dinner in a fancy restaurant where the waiters all wore attractive suits.6. He prefers this brand of coffee which, as he said, has an unusually good flavor.Key:1. at a minimum 2. prior to3. consist of4. consume5. elegant6. exceptionalStep 5：Familiarize yourself with some food idioms by matching the meaning on the right with the colored words on the left.1.Public concern for the health of farm animals has mushroomed in the UK2.Anderson may be young but he's certainly rolling to doing dough!3.George is a popular lecturer. He often peppers his speech with jokes.4.As the person to bring home the bacon, he needs to find a stable job.5 He is often regarded as a ham actor for his over emphasized facial expressions. The media reported that these companies had treated pollution as a hot potato. 6.The media reported that these companies had treated pollution as a hot potato.7.Don't worry about the test tomorrow. It's going to be a piece of cake!8. It's best to fold the swimming ring when it is as flat as a pancake.A. completely flatB. something that is very easy to do C.an issue that is hard to deal withD.to include large numbers of somethingE.to earn on e's living to support a familyF. wealthyG.to rapidly increase in numberH. an actor who performs badly, especially by over emphasizing emotions
新人教版高中英語選修2Unit 3 Using langauge-Listening教學設計
1． How is Hunan cuisine somewhat different from Sichuan cuisine?The heat in Sichuan cuisine comes from chilies and Sichuan peppercorns. Human cuisine is often hotter and the heat comes from just chilies.2.What are the reasons why Hunan people like spicy food?Because they are a bold people. But many Chinese people think that hot food helps them overcome the effects of rainy or wet weather.3.Why do so many people love steamed fish head covered with chilies?People love it because the meat is quite tender and there are very few small bones.4.Why does Tingting recommend bridge tofu instead of dry pot duck with golden buns?Because bridge tofu has a lighter taste.5 .Why is red braised pork the most famous dish?Because Chairman Mao was from Hunan, and this was his favorite food.Step 5: Instruct students to make a short presentation to the class about your choice. Use the example and useful phrases below to help them.? In groups of three, discuss what types of restaurant you would like to take a foreign visitor to, and why. Then take turns role-playing taking your foreign guest to the restaurant you have chosen. One of you should act as the foreign guest, one as the Chinese host, and one as the waiter or waitress. You may start like this:? EXAMPLE? A: I really love spicy food, so what dish would you recommend?? B: I suggest Mapo tofu.? A: Really ? what's that?
人教A版高中數(shù)學必修一任意角教學設計（2）
學生在初中學習了 ～ ，但是現(xiàn)實生活中隨處可見超出 ～ 范圍的角.例如體操中有“前空翻轉(zhuǎn)體 ”，且主動輪和被動輪的旋轉(zhuǎn)方向不一致.因此為了準確描述這些現(xiàn)象，本節(jié)課主要就旋轉(zhuǎn)度數(shù)和旋轉(zhuǎn)方向?qū)堑母拍钸M行推廣.課程目標1.了解任意角的概念.2.理解象限角的概念及終邊相同的角的含義．3.掌握判斷象限角及表示終邊相同的角的方法．數(shù)學學科素養(yǎng)1.數(shù)學抽象：理解任意角的概念，能區(qū)分各類角；2.邏輯推理：求區(qū)域角；3.數(shù)學運算：會判斷象限角及終邊相同的角.重點：理解象限角的概念及終邊相同的角的含義；難點：掌握判斷象限角及表示終邊相同的角的方法．教學方法：以學生為主體，采用誘思探究式教學，精講多練。教學工具：多媒體。一、 情景導入初中對角的定義是：射線OA繞端點O按逆時針方向旋轉(zhuǎn)一周回到起始位置，在這個過程中可以得到 ～ 范圍內(nèi)的角.但是現(xiàn)實生活中隨處可見超出 ～ 范圍的角.例如體操中有“前空翻轉(zhuǎn)體 ”，且主動輪和被動輪的旋轉(zhuǎn)方向不一致.
人教A版高中數(shù)學必修一奇偶性教學設計（2）
《奇偶性》內(nèi)容選自人教版A版第一冊第三章第三節(jié)第二課時;函數(shù)奇偶性是研究函數(shù)的一個重要策略,因此奇偶性成為函數(shù)的重要性質(zhì)之一,它的研究也為今后指對函數(shù)、冪函數(shù)、三角函數(shù)的性質(zhì)等后續(xù)內(nèi)容的深入起著鋪墊的作用.課程目標1、理解函數(shù)的奇偶性及其幾何意義；2、學會運用函數(shù)圖象理解和研究函數(shù)的性質(zhì)；3、學會判斷函數(shù)的奇偶性．數(shù)學學科素養(yǎng)1.數(shù)學抽象：用數(shù)學語言表示函數(shù)奇偶性；2.邏輯推理：證明函數(shù)奇偶性；3.數(shù)學運算：運用函數(shù)奇偶性求參數(shù)；4.數(shù)據(jù)分析：利用圖像求奇偶函數(shù)；5.數(shù)學建模：在具體問題情境中，運用數(shù)形結(jié)合思想，利用奇偶性解決實際問題。重點：函數(shù)奇偶性概念的形成和函數(shù)奇偶性的判斷；難點：函數(shù)奇偶性概念的探究與理解．教學方法：以學生為主體，采用誘思探究式教學，精講多練。
人教A版高中數(shù)學必修一對數(shù)的運算教學設計（2）
學生已經(jīng)學習了指數(shù)運算性質(zhì)，有了這些知識作儲備，教科書通過利用指數(shù)運算性質(zhì)，推導對數(shù)的運算性質(zhì)，再學習利用對數(shù)的運算性質(zhì)化簡求值。課程目標1、通過具體實例引入，推導對數(shù)的運算性質(zhì)；2、熟練掌握對數(shù)的運算性質(zhì)，學會化簡，計算.數(shù)學學科素養(yǎng)1.數(shù)學抽象：對數(shù)的運算性質(zhì)；2.邏輯推理：換底公式的推導；3.數(shù)學運算：對數(shù)運算性質(zhì)的應用；4.數(shù)學建模：在熟悉的實際情景中，模仿學過的數(shù)學建模過程解決問題.重點：對數(shù)的運算性質(zhì)，換底公式，對數(shù)恒等式及其應用；難點：正確使用對數(shù)的運算性質(zhì)和換底公式．教學方法：以學生為主體，采用誘思探究式教學，精講多練。教學工具：多媒體。一、 情景導入回顧指數(shù)性質(zhì)：(1)aras＝ar＋s(a＞0，r，s∈Q)．(2)(ar)s＝ (a＞0，r，s∈Q)．(3)(ab)r＝ (a＞0，b＞0，r∈Q)．那么對數(shù)有哪些性質(zhì)？如 要求：讓學生自由發(fā)言，教師不做判斷。而是引導學生進一步觀察.研探.
