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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?
新人教版高中英語選修4Unit 5 Language Your Career教案
本單元閱讀文本向中學生推薦職業(yè)能力測試(Career Aptitude Test)，旨在建議學生利用職業(yè)傾向測試來發(fā)現(xiàn)自己更感興趣、更有潛力的學習或職業(yè)方向，并規(guī)劃自己的未來職業(yè)。 本文采用了建議性文本，全篇從職業(yè)生涯的重要意義講起，針對中學生對職業(yè)規(guī)劃比較迷茫的現(xiàn)狀，提出了職業(yè)傾向測試這一建議。全文共七段，其中第一段和第二段為第一部分，其余五段為第二部分。第一部分論述職業(yè)的重要性和職業(yè)生涯規(guī)劃的最佳時間是在校期間，第二部分提出解決職業(yè)選擇困惑可以通過完成職業(yè)能力測試，介紹了不同種類的職業(yè)傾向測試，結合圖表詳細說明其中一種操作步驟，并提醒職業(yè)建議也基于學歷和經(jīng)驗，最后一段概括論述，建議學生通過職業(yè)能力測試這一有效的工具，找到自己真正熱愛的事物。 在文本教學設計時，要幫助學生梳理有關職業(yè)的話題語言。閱讀策略層面，指導學生通過學習圖表和圖形，在有限的空間內(nèi)獲取廣泛信息，如閱讀圖表標題，圖表上的標簽，X軸Y軸上的數(shù)據(jù)所指。
新人教版高中英語選修1Unit 4 Body Language教案
本閱讀材料的話題是交際中的肢體語言，作者從三個方面講述了肢體語言的特征與作用，通過主題句和舉例闡述的方式讓讀者了解不同文化中肢體語言的相同或者不同的意義，并從更抽象、概括的維度深入認識肢體語言的特點，理解肢體語言的作用?；谥w語言的特點，作者提醒讀者在與人交流中，尤其是當文化背景有差異的時候，要使用得體的肢體語言，尊重、理解和包容不同的文化，進行有效、有素養(yǎng)的溝通。文本共由六個段落組成，篇章結構為“總—分”。第一段用簡練的語言引出了話題，并且從我們自身表達的需要和了解他人感受兩個角度講述了肢體語言的作用。第二段闡述了肢體語言的第一個重要特點——肢體語言在不同的文化中有不同的內(nèi)涵——這也是文中寫作篇幅最大的一個要點，最為重要。通過講述肢體語言的這一特點，作者向讀者傳遞了要尊重不同的文化、要使用與所在文化相宜的肢體語言。
新人教版高中英語選修4Unit 1 Science Fiction教案
本活動旨在落實課時教學目標2。 1.Think, discuss and share. Students form groups of 4, discuss about the given ending make comments. Q1: Do you like the ending? Q2: Was it a logical ending? Why so or why not? [設計意圖]通過引導學生思考、討論、評價，比較個人、同伴所預測的結局和聽力文本所給定的結局的異同點，深化對文本的認知，發(fā)展學生的評判性思維能力。 Activity 4: Exploring Asimov’s three laws of robotics and the purpose of the writing 本活動旨在落實課時教學目標3。 1. Get to know Isaac Asimov’s three laws of robotics. The teacher shares Isaac Asimov’s three laws of robotics. The three laws state that: ①A robot may not injure a human being or, through inaction, allow a human being to come to harm. ②A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law. ③A robot must protect its own existence as long as such protection does not conflict with the First or Second Law. Q: How does Tony’s story relate to the laws? 2. Figure out Isaac Asimov’s purpose of writing Satisfaction Guaranteed. The students express their opinions about the author’s writing purpose. Q: Why did Isaac Asimov write such a story? S: To explore the relationship between robots and humans. [設計意圖]通過了解艾薩克·阿西莫夫所制定的機器人三大定律，加深學生對文本的理解，深入探究文本的主題意義。推理作者的寫作目的，聯(lián)系生活實際，思考人類與機器人的關系。
新人教版高中英語選修3Unit 4 Adversity And Courage教案
本活動旨在落實課時目標3。 The Student Union is looking for three students for a 3-week voluntary program in Guizhou province. The volunteers have got to be high school students, with a persevering personality and experiences in overcoming adversity. The volunteers need to stay, eat and teach with 20 pupils in a small school up on the hill of a village. There are no facilities but desks and a blackboard in the school. And there is no take-away food to be bought anywhere; the only way to feed yourself is to cook. You’re interested in applying. Write your application letter introducing what adversity you have ever overcome and how persevering you are as well as what you want to do when at work. Dear Student Union,【設計意圖】此任務旨在遷移一、二課時所學，解決實際問題。學生對比自己經(jīng)歷過的挑戰(zhàn)或挫折，寫信給學生會申請前往貴州擔任短期支教教師，把個人以前是怎么戰(zhàn)勝挫折的經(jīng)過書寫出來。結合所學，遷移創(chuàng)新，分析解決自身實際問題，在真實情境中學生通過仿寫進行主題語言的精確輸出。完成任務的過程中，能較多地使用已學語言、內(nèi)容、結構和寫作手法來描述自己面對挫折的處理方式、態(tài)度和應有的品質(zhì)，近一步激發(fā)學生樹立正確的價值觀，學會逆境出人才，堅忍不拔，從容不迫，又做到謙讓、分享和合作。課后學生修正習作，再次提交。
新人教版高中英語選修4Unit 3 Reaching Out Across the Sea教案
本活動旨在落實課時目標3。 Think about the following questions and talk about your own attitude in pairs.Q1: As for this topic，what impresses you the most in the passage?Q2: What do you think of the future of China’s further exploration in sea? Are you in favor of the further exploration？Why or why not? 【設計意圖】該活動是一個完全開放性的活動，每個學生都會有不同的答案。運用遷移所學，自由口頭表達自己對海洋探索的態(tài)度。對于中國海洋探索的未來，每個人的想法是不一樣的，有樂觀，有擔憂，有認為值得投入，也有認為不值得付出太大代價，這里給學生自由表達的空間只要學會有支撐自己觀點的事實就可以了，進一步培養(yǎng)學生批判性思維和正確的價值觀。 Assignment: 此任務旨在遷移一、二課時所學，培養(yǎng)學生辯證分析問題的能力。 Write about your idea of the future of China’s sea exploration. And add your attitude towards the effort China have made in sea exploration. You’re expected to use the language and the writing technique learnt in the passage.
人教版高中地理選修3第五章第一節(jié)設計旅游活動教案
點撥：旅游地旅游資源的特色不同，可以安排的旅游活動是不一樣的，直接影響對旅游者的吸引力。因此，出游前首先就需要收集旅游地旅游資源的類型、主要游覽景區(qū)、景點的特色等情況。旅游地的時空可達性直接關系到旅游者從出發(fā)地到旅游地，然后再返回出發(fā)地的費用和時間。一般來說，居住地與旅游地之間的空間距離過大，會使旅行的時間過長、旅行費用過高，經(jīng)濟距離增加，相應地降低了旅游者的出游能力。而居住地與旅游地相距遙遠，也意味著兩地之間巨大的環(huán)境差異，這會增加對游客的吸引力。旅游服務設施和條件，如旅游交通方式及工具、旅游住宿條件、旅游餐飲的種類和標準、導游服務、旅行費用等信息也都在一定程度上影響著游客的選擇。圖5．3西藏布達拉宮和圖5．4云南香格里拉兩幅圖片顯示了西藏布達拉宮、云南香格里拉與眾不同的優(yōu)美景觀，吸引了眾多的游客前來觀光旅游，成為近年來國內(nèi)旅游的熱點。
新人教版高中英語選修3Unit 2 Healthy Lifestyle教案
Activity 4: Figuring out the structure and the writing purpose 本活動為實現(xiàn)課時目標2。 1.Read Paragraph 6 and think about its main idea and the writer’s writing purpose. Q1: If you were the author, how would you end your article? “For young people, there is plenty of time to change bad habits. However, there is no “magic pill” or delete button that will help you; you have to think about your bad habits and decide on some changes. You have the power to build a happy and healthy life full of good habits!” Q2: What is Paragraph 6 mainly about? (Possible answer: to appeal to young people including teenagers to change bad habits and live a happy and healthy life.) 2.Think about the writer’s writing purpose and share opinions. Q1: What is the writing purpose? Work in pairs and figure it out. (Possible answer: On the one hand, the passage is written to help teenagers change their bad habits and live a healthy lifestyle. On the other hand, it provides us with a scientific way to identify and analyse our problems objectively, thus strengthening our resolve to tackle the seemingly common yet tough problems in our lives.) 【設計意圖】 步驟1旨在預測和驗證文章最后一段主要內(nèi)容，梳理完整的語篇結構，步驟2旨在思考和討論作者的寫作目的。教師也可根據(jù)學生課堂反應情況融入對語篇人稱多次轉換的思考。
新人教版高中英語選修1Unit 2 Looking into the Future教案
【設計意圖】以“新科技是一把雙刃劍”為主題開展討論活動。這個話題比較大，所以給了一定的限制，首先需要以智能家居為例來闡述科技發(fā)展對未來生活產(chǎn)生的影響，然后列舉其優(yōu)點和缺點，最后就以上現(xiàn)象發(fā)表自己的觀點。這個活動是對整個文本的創(chuàng)意性總結與意義的升華，留給學生一定的想象空間，學生借此機會可以運用文本內(nèi)容和語言表達自己對科技發(fā)展的看法和態(tài)度。Assignments:1. Finish Exercise 4 on Page 15 of the textbook.A smart home is one that integrated computers into the structure of the building itself. In this way, many of the things that we now do ourselves become automatic. For example, the smart home could control the air conditioning and lights so that you would no longer have to turn switches on and off, and so that your home would be more energy-efficient. The smart home could also monitor itself to make sure that everything is working as it should, and send you warnings if there is a problem. Such smart homes could even be programmed to detect your health problems, and then give you reasonable advice as to the food you should eat or if you should see a doctor. So, in a sense, smart homes will lead us to living smarter lives.2.Create a smart function for your home, and share your creation in the next period.
新人教版高中英語選修1Unit 5 Working the Land教案
1. 完成文本主要信息填空（斜體字部分設空）：As a witness to farmers’ poor harvests and even a severe shortage of food, Yuan Longping was determined to devote his life to tackling this crisis. After graduation, he realized that what farmers needed most was to boost yields in the fields. Yuan was convinced that the answer lay in the creation of hybrid rice, one characteristic of which is that it usually achieve higher output than conventional crops. However, it was no easy job. The first difficulty he needed to overcome was scientists’ general assumption that this could not be done. Through trial and error, Yuan managed to generate this incredible crop. It is estimated that about 60 percent of domestic rice consumption in China was comprised of crops generated from Yuan’s hybrid strains. His innovation has enabled Chinese farmers to considerably expand their output and helped feed the world. Unwilling to retire early to a life of leisure and unconcerned about celebrity or fortune, Yuan continues to turn one vision after another into realities.2. 模仿寫作：Do some research via the Internet and introduce another agricultural scientist, Chen Risheng（陳日勝）, using the structure, expressions and writing techniques you have learnt from the text “A Pioneer for All People”.【設計意圖】任務1是對文本內(nèi)容和詞匯學習成效的檢測。任務2借助文本中學到的詞匯和寫作手法仿寫另一位科學家，提升學生遷移運用詞匯、文體結構和寫作方法的能力。
新人教版高中英語選修3Unit 1 Art教案
[2] An important breakthrough…was… [3] Another innovation was … [4] the emphasis increasingly shifted from…to… [5] New ideas and values gradually replaced… [6] While his paintings still had religious themes… … T: All these expressions serve to show how Western painting has developed. Some of them share similar structure but with varied use of words, which makes the text vivid and more readable. 【設計意圖】主題類語言整理有助于學生類化語言應用，提高語言輸出的豐富性。處理完文本內(nèi)容信息后，進入語篇信息處理，進行主題相關的詞塊歸類。引導學生快速閱讀，尋找表達相同主題(發(fā)展或者藝術)的詞和短語，再根據(jù)詞性、用法和結構進行歸類，儲備主題相關詞匯，豐富語言儲備，提升語言素養(yǎng)。 Assignment: Go online to gather more information about Chinese painting and write a short history of it. 【設計意圖】結合所學，遷移運用，根據(jù)實際語境，進行模仿性運用。在此過程中，學生嘗試借鑒已學的語言、內(nèi)容、語篇結構和寫作手法來建構新文本，實現(xiàn)語篇輸出，同時關注中西藝術文化的差別，加深對優(yōu)秀文化的認同，培養(yǎng)文化意識。
新人教版高中英語選修1Unit 3 Fascinating Parks教案
2. Explore the significance of the establishment of Sarek National Park.Q1: Which event is the most important one in the park’s history?Ss: The establishment of Sarek national park in 1909 is the most important one.Q2: Is it worth making a place like Sarek a national park? Give your reasons.Ss: Yes. In this way, the place can be kept in its natural state and natural beauties and other rare and valuable resources can be preserved instead of being destroyed by endless exploitation driven by profits.Q3: How does the writer organize his introduction to the history of Sarek?Ss: The writer organizes his introduction in the sequence of time, using time indicators such as “used to”, “around 9,000 years ago”, “soon after”, “following the reindeer”, and “in 1909”.Q4: What is the feature of the language used to introduce the history of the park?Ss: The introduction to the park is to provide facts, using time indicators to organize the events. Sentences starts with “third person” and passive voice is used more often, feeling objective.【設計意圖】學生尋找和梳理公園歷史上的重要事件，體會人與自然的和諧關系，評鑒介紹性語言的特點。【核心素養(yǎng)提升點】發(fā)展自主提取、梳理文本信息能力，訓練邏輯思維和高階思維。Activity 3: Highlighting the secret of the text
新人教版高中英語選修1Unit 1 People of Achievement教案
【設計意圖】 基于上述分析，學生總結新聞故事語篇類型的特征，即標題的省略性、導語的概括性、數(shù)據(jù)的支撐性和引語的重要性。在此過程中，學生對新聞故事語篇類型有了更深層次的了解，對于學生閱讀和寫作具有重要意義。Activity 7: Discussing to make a writing outline.本活動為實現(xiàn)課時目標3。1.Discuss and make an outline.Ask students to discuss in groups of four and make their own writing outline.To celebrate the 70th anniversary of the People’s Republic of China, our school newspaper starts a new column about “People of Achievement”. You plan to write a news story about one of the winners of the Medal of the Republic in 2019, including Yu Min, Shen Jilan, Sun Jiadong, Li Yannian, Zhang Fuqing, Yuan Longping, Huang Xuhua and Tu Youyou.【設計意圖】 教師創(chuàng)設情境，即為慶祝新中國成立70周年，校報新增有關卓有成就人物的欄目，你將從共和國勛章獲得者中，選擇一位寫一篇新聞故事，向該欄目投稿。學生以小組合作形式，展開討論，并寫出新聞故事框架，有助于學生課后收集人物信息，撰寫新聞故事。
新人教版高中英語選修3Unit 5 Poems教案
本單元閱讀文本介紹了幾種簡單的英語詩歌形式，旨在讓學生能理解和欣賞英語詩歌的美，包括形式美、內(nèi)容美、意義美，培養(yǎng)審美情趣，并從作品的意義美中獲得積極的人生態(tài)度和價值觀念啟示。 該文本是一則典型的說明性文本，用簡單易懂的語言向英語詩歌的初學者們介紹了五種比較簡單的英語詩歌形式。文題“A Few Simple Forms of English Poems”是整個文本的核心話題。正文內(nèi)容共七段，按“總—分—總”建構。第一段為總起段，概述了英語詩歌的創(chuàng)作原因以及主要特點，涉及了形式、內(nèi)容、意義等方面賞析英語詩歌的幾個主要維度；第二段至第六段分別介紹了童謠、清單詩、五行詩、俳句和唐詩五種英語詩歌形式；第七段收尾，鼓勵讀者嘗試英語詩歌創(chuàng)作。 在進行文本教學設計時，要引導學生梳理關于與詩歌要素和詩歌賞析有關的話題類語言，既包括format、rhythm、subject、image等名詞，也包括have a strong rhythm、be made up of、contain、consist of、convey這樣的動詞和動詞短語。
人教版高中數(shù)學選擇性必修二等比數(shù)列的前n項和公式 (2) 教學設計
二、典例解析例10. 如圖，正方形ABCD 的邊長為5cm ，取正方形ABCD 各邊的中點E,F,G,H, 作第2個正方形 EFGH，然后再取正方形EFGH各邊的中點I,J,K,L，作第3個正方形IJKL ，依此方法一直繼續(xù)下去. (1) 求從正方形ABCD 開始，連續(xù)10個正方形的面積之和；(2) 如果這個作圖過程可以一直繼續(xù)下去，那么所有這些正方形的面積之和將趨近于多少？分析：可以利用數(shù)列表示各正方形的面積，根據(jù)條件可知，這是一個等比數(shù)列。解：設正方形的面積為a_1，后續(xù)各正方形的面積依次為a_2, a_(3, ) 〖…,a〗_n,…，則a_1=25,由于第k+1個正方形的頂點分別是第k個正方形各邊的中點，所以a_(k+1)=〖1/2 a〗_k,因此{a_n}，是以25為首項，1/2為公比的等比數(shù)列.設{a_n}的前項和為S_n（1）S_10=(25×[1-(1/2)^10 ] )/("1 " -1/2)=50×[1-(1/2)^10 ]=25575/512所以，前10個正方形的面積之和為25575/512cm^2.(2)當無限增大時，無限趨近于所有正方形的面積和
人教版高中數(shù)學選擇性必修二等比數(shù)列的概念 (2) 教學設計
二、典例解析例4. 用 10 000元購買某個理財產(chǎn)品一年.（1）若以月利率0.400%的復利計息，12個月能獲得多少利息（精確到1元）？（2）若以季度復利計息，存4個季度，則當每季度利率為多少時，按季結算的利息不少于按月結算的利息（精確到10^(-5)）？分析：復利是指把前一期的利息與本金之和算作本金，再計算下一期的利息.所以若原始本金為a元，每期的利率為r ，則從第一期開始，各期的本利和a , a(1+r)，a(1+r)^2…構成等比數(shù)列.解：（1）設這筆錢存 n 個月以后的本利和組成一個數(shù)列{a_n }，則{a_n }是等比數(shù)列，首項a_1=10^4 (1+0.400%)，公比 q=1+0.400%，所以a_12=a_1 q^11 〖=10〗^4 (1+0.400%)^12≈10 490.7.所以，12個月后的利息為10 490.7-10^4≈491（元）.解：（2）設季度利率為 r ，這筆錢存 n 個季度以后的本利和組成一個數(shù)列{b_n }，則{b_n }也是一個等比數(shù)列，首項 b_1=10^4 (1+r)，公比為1+r，于是 b_4=10^4 (1+r)^4.
人教版高中數(shù)學選擇性必修二等差數(shù)列的前n項和公式（2）教學設計
課前小測1．思考辨析(1)若Sn為等差數(shù)列{an}的前n項和，則數(shù)列Snn也是等差數(shù)列．( )(2)若a1>0，d<0，則等差數(shù)列中所有正項之和最大．( )(3)在等差數(shù)列中，Sn是其前n項和，則有S2n－1＝(2n－1)an.( )[答案] (1)√ (2)√ (3)√2．在項數(shù)為2n＋1的等差數(shù)列中，所有奇數(shù)項的和為165，所有偶數(shù)項的和為150，則n等于( )A．9 B．10 C．11 D．12B [∵S奇S偶＝n＋1n，∴165150＝n＋1n.∴n＝10.故選B項．]3．等差數(shù)列{an}中，S2＝4，S4＝9，則S6＝________.15 [由S2，S4－S2，S6－S4成等差數(shù)列得2(S4－S2)＝S2＋(S6－S4)解得S6＝15.]4．已知數(shù)列{an}的通項公式是an＝2n－48，則Sn取得最小值時，n為________.23或24 [由an≤0即2n－48≤0得n≤24.∴所有負項的和最小，即n＝23或24.]二、典例解析例8.某校新建一個報告廳，要求容納800個座位，報告廳共有20排座位，從第2排起后一排都比前一排多兩個座位. 問第1排應安排多少個座位？分析：將第1排到第20排的座位數(shù)依次排成一列，構成數(shù)列{an} ，設數(shù)列{an} 的前n項和為S_n。
人教版高中數(shù)學選擇性必修二等差數(shù)列的概念（2）教學設計
二、典例解析例3.某公司購置了一臺價值為220萬元的設備，隨著設備在使用過程中老化，其價值會逐年減少.經(jīng)驗表明，每經(jīng)過一年其價值會減少d(d為正常數(shù)）萬元.已知這臺設備的使用年限為10年，超過10年 ，它的價值將低于購進價值的5%，設備將報廢.請確定d的范圍.分析：該設備使用n年后的價值構成數(shù)列{an}，由題意可知，an＝an－1－d (n≥2). 即：an－an－1＝－d.所以{an}為公差為－d的等差數(shù)列.10年之內(nèi)（含10年），該設備的價值不小于（220×5%=）11萬元；10年后，該設備的價值需小于11萬元．利用{an}的通項公式列不等式求解．解：設使用n年后，這臺設備的價值為an萬元，則可得數(shù)列{an}．由已知條件，得an＝an－1－d（n≥2）．所以數(shù)列{an}是一個公差為－d的等差數(shù)列.因為a1＝220－d，所以an＝220－d＋(n－1)(－d)＝220－nd. 由題意，得a10≥11，a11＜11. 即：{█("220－10d≥11" @"220－11d＜11" )┤解得19<d≤20.9所以，d的求值范圍為19<d≤20.9
人教A版高中數(shù)學必修一對數(shù)的概念教學設計（2）
對數(shù)與指數(shù)是相通的，本節(jié)在已經(jīng)學習指數(shù)的基礎上通過實例總結歸納對數(shù)的概念，通過對數(shù)的性質(zhì)和恒等式解決一些與對數(shù)有關的問題.課程目標1、理解對數(shù)的概念以及對數(shù)的基本性質(zhì)；2、掌握對數(shù)式與指數(shù)式的相互轉化；數(shù)學學科素養(yǎng)1.數(shù)學抽象：對數(shù)的概念；2.邏輯推理：推導對數(shù)性質(zhì)；3.數(shù)學運算：用對數(shù)的基本性質(zhì)與對數(shù)恒等式求值；4.數(shù)學建模：通過與指數(shù)式的比較，引出對數(shù)定義與性質(zhì).重點：對數(shù)式與指數(shù)式的互化以及對數(shù)性質(zhì)；難點：推導對數(shù)性質(zhì)．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、 情景導入已知中國的人口數(shù)y和年頭x滿足關系 中，若知年頭數(shù)則能算出相應的人口總數(shù)。反之，如果問“哪一年的人口數(shù)可達到18億，20億，30億......”，該如何解決？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.
人教A版高中數(shù)學必修一誘導公式教學設計（2）
本節(jié)主要內(nèi)容是三角函數(shù)的誘導公式中的公式二至公式六，其推導過程中涉及到對稱變換，充分體現(xiàn)對稱變換思想在數(shù)學中的應用，在練習中加以應用，讓學生進一步體會 的任意性；綜合六組誘導公式總結出記憶誘導公式的口訣：“奇變偶不變，符號看象限”，了解從特殊到一般的數(shù)學思想的探究過程，培養(yǎng)學生用聯(lián)系、變化的辯證唯物主義觀點去分析問題的能力。誘導公式在三角函數(shù)化簡、求值中具有非常重要的工具作用，要求學生能熟練的掌握和應用。課程目標1.借助單位圓，推導出正弦、余弦第二、三、四、五、六組的誘導公式，能正確運用誘導公式將任意角的三角函數(shù)化為銳角的三角函數(shù)，并解決有關三角函數(shù)求值、化簡和恒等式證明問題2.通過公式的應用，了解未知到已知、復雜到簡單的轉化過程，培養(yǎng)學生的化歸思想，以及信息加工能力、運算推理能力、分析問題和解決問題的能力。
