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人教A版高中數(shù)學(xué)必修一對(duì)數(shù)的運(yùn)算教學(xué)設(shè)計(jì)（2）
學(xué)生已經(jīng)學(xué)習(xí)了指數(shù)運(yùn)算性質(zhì)，有了這些知識(shí)作儲(chǔ)備，教科書通過(guò)利用指數(shù)運(yùn)算性質(zhì)，推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)，再學(xué)習(xí)利用對(duì)數(shù)的運(yùn)算性質(zhì)化簡(jiǎn)求值。課程目標(biāo)1、通過(guò)具體實(shí)例引入，推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)；2、熟練掌握對(duì)數(shù)的運(yùn)算性質(zhì)，學(xué)會(huì)化簡(jiǎn)，計(jì)算.數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：對(duì)數(shù)的運(yùn)算性質(zhì)；2.邏輯推理：換底公式的推導(dǎo)；3.數(shù)學(xué)運(yùn)算：對(duì)數(shù)運(yùn)算性質(zhì)的應(yīng)用；4.數(shù)學(xué)建模：在熟悉的實(shí)際情景中，模仿學(xué)過(guò)的數(shù)學(xué)建模過(guò)程解決問(wèn)題.重點(diǎn)：對(duì)數(shù)的運(yùn)算性質(zhì)，換底公式，對(duì)數(shù)恒等式及其應(yīng)用；難點(diǎn)：正確使用對(duì)數(shù)的運(yùn)算性質(zhì)和換底公式．教學(xué)方法：以學(xué)生為主體，采用誘思探究式教學(xué)，精講多練。教學(xué)工具：多媒體。一、 情景導(dǎo)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(duì)數(shù)有哪些性質(zhì)？如 要求：讓學(xué)生自由發(fā)言，教師不做判斷。而是引導(dǎo)學(xué)生進(jìn)一步觀察.研探.
人教A版高中數(shù)學(xué)必修一集合的概念教學(xué)設(shè)計(jì)（2）
例7 用描述法表示拋物線y＝x2＋1上的點(diǎn)構(gòu)成的集合．【答案】見(jiàn)解析 【解析】 拋物線y＝x2＋1上的點(diǎn)構(gòu)成的集合可表示為：{(x，y)|y＝x2＋1}．變式1．[變條件，變?cè)O(shè)問(wèn)]本題中點(diǎn)的集合若改為“{x|y＝x2＋1}”，則集合中的元素是什么？【答案】見(jiàn)解析 【解析】集合{x|y＝x2＋1}的代表元素是x，且x∈R，所以{x|y＝x2＋1}中的元素是全體實(shí)數(shù)．變式2．[變條件，變?cè)O(shè)問(wèn)]本題中點(diǎn)的集合若改為“{y|y＝x2＋1}”，則集合中的元素是什么？【答案】見(jiàn)解析 【解析】集合{ y| y＝x2＋1}的代表元素是y，滿足條件y＝x2＋1的y的取值范圍是y≥1，所以{ y| y＝x2＋1}＝{ y| y≥1}，所以集合中的元素是大于等于1的全體實(shí)數(shù)．解題技巧（認(rèn)識(shí)集合含義的2個(gè)步驟）一看代表元素，是數(shù)集還是點(diǎn)集，二看元素滿足什么條件即有什么公共特性。
人教A版高中數(shù)學(xué)必修一對(duì)數(shù)的概念教學(xué)設(shè)計(jì)（2）
對(duì)數(shù)與指數(shù)是相通的，本節(jié)在已經(jīng)學(xué)習(xí)指數(shù)的基礎(chǔ)上通過(guò)實(shí)例總結(jié)歸納對(duì)數(shù)的概念，通過(guò)對(duì)數(shù)的性質(zhì)和恒等式解決一些與對(duì)數(shù)有關(guān)的問(wèn)題.課程目標(biāo)1、理解對(duì)數(shù)的概念以及對(duì)數(shù)的基本性質(zhì)；2、掌握對(duì)數(shù)式與指數(shù)式的相互轉(zhuǎn)化；數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：對(duì)數(shù)的概念；2.邏輯推理：推導(dǎo)對(duì)數(shù)性質(zhì)；3.數(shù)學(xué)運(yùn)算：用對(duì)數(shù)的基本性質(zhì)與對(duì)數(shù)恒等式求值；4.數(shù)學(xué)建模：通過(guò)與指數(shù)式的比較，引出對(duì)數(shù)定義與性質(zhì).重點(diǎn)：對(duì)數(shù)式與指數(shù)式的互化以及對(duì)數(shù)性質(zhì)；難點(diǎn)：推導(dǎo)對(duì)數(shù)性質(zhì)．教學(xué)方法：以學(xué)生為主體，采用誘思探究式教學(xué)，精講多練。教學(xué)工具：多媒體。一、 情景導(dǎo)入已知中國(guó)的人口數(shù)y和年頭x滿足關(guān)系 中，若知年頭數(shù)則能算出相應(yīng)的人口總數(shù)。反之，如果問(wèn)“哪一年的人口數(shù)可達(dá)到18億，20億，30億......”，該如何解決？要求：讓學(xué)生自由發(fā)言，教師不做判斷。而是引導(dǎo)學(xué)生進(jìn)一步觀察.研探.
人教A版高中數(shù)學(xué)必修一函數(shù)的概念教學(xué)設(shè)計(jì)（2）
函數(shù)在高中數(shù)學(xué)中占有很重要的比重，因而作為函數(shù)的第一節(jié)內(nèi)容，主要從三個(gè)實(shí)例出發(fā)，引出函數(shù)的概念.從而就函數(shù)概念的分析判斷函數(shù)，求定義域和函數(shù)值，再結(jié)合三要素判斷函數(shù)相等.課程目標(biāo)1.理解函數(shù)的定義、函數(shù)的定義域、值域及對(duì)應(yīng)法則。2.掌握判定函數(shù)和函數(shù)相等的方法。3.學(xué)會(huì)求函數(shù)的定義域與函數(shù)值。數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：通過(guò)教材中四個(gè)實(shí)例總結(jié)函數(shù)定義；2.邏輯推理：相等函數(shù)的判斷；3.數(shù)學(xué)運(yùn)算：求函數(shù)定義域和求函數(shù)值；4.數(shù)據(jù)分析：運(yùn)用分離常數(shù)法和換元法求值域；5.數(shù)學(xué)建模：通過(guò)從實(shí)際問(wèn)題中抽象概括出函數(shù)概念的活動(dòng)，培養(yǎng)學(xué)生從“特殊到一般”的分析問(wèn)題的能力，提高學(xué)生的抽象概括能力。重點(diǎn)：函數(shù)的概念，函數(shù)的三要素。難點(diǎn)：函數(shù)概念及符號(hào)y=f(x)的理解。
人教版高中歷史必修1甲午中日戰(zhàn)爭(zhēng)和八國(guó)聯(lián)軍侵華教案
（1）巨額的賠款，是列強(qiáng)對(duì)中國(guó)空前的大規(guī)模勒索；為支付這筆巨額賠款，清政府加緊搜刮人民，使人民生活更加貧困，社會(huì)經(jīng)濟(jì)更加凋敝。（2）在北京設(shè)立的“使館界”，實(shí)際上是“國(guó)中之國(guó)”，是帝國(guó)主義策劃侵略中國(guó)的大本營(yíng)。外國(guó)侵略者控制京津地區(qū)，使清政府完全處于外國(guó)軍隊(duì)的控制之下，便于侵略者直接派兵鎮(zhèn)壓中國(guó)人民的反帝斗爭(zhēng)。（3）按照條約規(guī)定，清朝官吏嚴(yán)厲鎮(zhèn)壓中國(guó)人民的反帝斗爭(zhēng)，進(jìn)一步成為帝國(guó)主義的幫兇。（4）改設(shè)外務(wù)部的規(guī)定，便于清政府能夠按照外國(guó)侵略者的意旨實(shí)行賣國(guó)的外交政策。《辛丑條約》是帝國(guó)主義強(qiáng)加給中國(guó)的一個(gè)嚴(yán)重的不平等條約，列強(qiáng)除了窮兇極惡地對(duì)中國(guó)敲詐勒索外，還重新確立了以慈禧太后為首的清政府繼續(xù)充當(dāng)它們?cè)谌A的代理人。
人教版高中語(yǔ)文必修1《黃河九曲：寫事要有點(diǎn)波瀾》教案2篇
1．懸念法懸念法又稱關(guān)子。它是作者為了激發(fā)那種“緊張與期待的心理活動(dòng)”，在行文中有意采取的一種積極而有效的手段。這種手段包括“設(shè)懸”和“解懸”兩方面。所謂 “設(shè)懸”就是設(shè)置懸念，即在情節(jié)發(fā)生發(fā)展的關(guān)鍵時(shí)刻或人物命運(yùn)攸關(guān)的重要關(guān)頭，敘述戛然而止，轉(zhuǎn)敘他事。從而引起讀者強(qiáng)烈的尋根問(wèn)底的興趣。所謂“解懸” 也叫“釋懸”，就是指在情節(jié)發(fā)展的特定階段，通過(guò)矛盾的解決，揭示事情原委和人物命運(yùn)的結(jié)局，使讀者的期待心理得以滿足。如《驛路梨花》，當(dāng)人們正為露宿而發(fā)愁時(shí)出現(xiàn)了一間神秘的小屋，小屋的主人是誰(shuí)呢？猜想間，有人來(lái)了，但也不是屋子主人，那小屋子的主人是誰(shuí)呢？終于知道了小屋是解放軍蓋的，但為什么要蓋這間小屋呢？這樣“設(shè)懸——釋懸——帶出新懸念”，環(huán)環(huán)相扣、層層遞進(jìn)，使文章韻味無(wú)窮。
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Listening&Speaking&Talking教學(xué)設(shè)計(jì)一
Listening and Speaking introduces the topic of “talking about how to become an astronaut”. This period is aimed to inform students some details about the requirements of being an astronaut. Students can be motivated and inspired by the astronauts. Teachers ought to encourage students to learn from them and let them aim high and dream big.Listening and Talking introduces the theme of "talk about life in space". This part also informs students more details about life in space and can inspire students to be curious about this job. 1. Guide students to listen for numbers concerning dates, years and ages etc2. Cultivate students' ability to talk about how to become an astronaut and life in space ; 3. Instruct students to use functional sentences of the dialogue such as “ first of all, I am not sure, so what might be .. I guess.. I wonder…I am curious…)appropriately.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to become a qualified astronaut and describe the life in space.Part 1: Listening and SpeakingStep 1: Lead inPredictionThe teacher can ask students to predict what the listening text is about by looking at the pictures.About how to become an astronaut./the requirements of an astronautStep 2: Then, play the radio which is about an interview a. And after finishing listening for the first time, the students need to solve the following tasks.
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Listening&Speaking＆Talking教學(xué)設(shè)計(jì)二
The themes of this part are “Talk about how to become an astronaut” and “Talk about life in space”. As Neil Armstrong said “Mystery creates wonder and wonder is the basis of man’s desire to understand. Space is difficult for human to reach, therefore, humans are full of wonders about it. However, if wanting to achieve the dream of reaching the Moon, some of our human should work hard to be an astronaut at first. Part A(Talk about how to become an astronaut) is a radio interview in a radio studio, where the host asked the Chinese astronauts about his story how to become an astronaut. Yang Liwei told his dreamed to be an astronaut since childhood. Then he worked hard to get into college at 22. The next 10 years, he gradually became an experienced pilot. At the same time, to be an astronaut, he had to study hard English, science and astronomy and trained hard to keep in good physical and mental health and to practise using space equipment. Part B (Talk about life in space) is also an interview with the astronaut Brown, who is back on the earth. The host Max asked about his space life, such as his emotion about going back the earth, the eating, shower, brushing, hobbies and his work. Part A and Part B are interviews. So expressing curiosity about the guests’ past life is a communicative skill, which students should be guided to learn.1. Students can get detailed information about how Yang Liwei became an astronaut and Max’s space life.2. Students learn to proper listening strategy to get detailed information---listening for numbers and taking notes.3. Students can learn related sentences or phrases to express their curiosity like “ I wish to know...” “I’d love to know...”4. Students can learn more about the space and astronauts, even be interested in working hard to be an astronaut
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading for Writing教學(xué)設(shè)計(jì)二
⑦在我看來(lái), 探索太空是值得的。As far as I am concerned, it is worthwhile to explore the space.Step 10 Writing---draftRecently, students in our class have had heated a discussion on whether space is worth exploring. Students hold different ideas about it.30% of us think space exploration is not worthwhile. They think space is too far away from us and our daily life and is a waste of money. And the money spent on space exploration can be used to solve the earth’s problems such as starvation and pollution.On the other hand，70% think space is worth exploring because we have benefited a lot from it，such as using satellites for communication and weather forecast. What’s more，with further space research，we may solve the population problem by moving to other planets one day. Also，space research will enable us to find new sources to solve the problem of energy shortages on the earth.As far as I am concerned, it is worthwhile to explore the space. Not only can it promote the development of society but also enrich our life. Step 11 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1.Does the writer explain why he/she changed/wanted to change?2.Does the writer tell how the changes have improved or will improve his/her life?3.Is the text well－organised?4.Does the writer use words and expressions to show similarities and differences?5.Are there any grammar or spelling errors?6.Does the writer use correct punctuation？
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading For Writing教學(xué)設(shè)計(jì)一
另一方面，其余的人反對(duì)這個(gè)計(jì)劃，因?yàn)樗赡軙?huì)導(dǎo)致一些不好的影響。7.I hold the belief that space exploration not only enable us to understand how the universe began but also help us survived well into the future.我堅(jiān)信探索太空不僅能夠使我們了解宇宙的起源而且能夠幫助我們更好地走進(jìn)未來(lái)。8.I think we should spend more time and money exploring space so as to provide new and better solutions to people's shortterm and longterm problems.為了給人類的短期和長(zhǎng)期問(wèn)題提供更新和更好的解決方法，我認(rèn)為我們應(yīng)該花更多的時(shí)間和金錢來(lái)探索太空。9．From my point of view，it is wrong of young people to depend on their telephones too much，which may do harm to both their physical and mental health.在我看來(lái)，年輕人過(guò)度依賴手機(jī)是不對(duì)的，因?yàn)樗鼈兛赡軙?huì)對(duì)他們的身心健康都有害。最近你班同學(xué)就“人類是否應(yīng)該進(jìn)行宇宙探索”這個(gè)問(wèn)題進(jìn)行了激烈的討論。有人認(rèn)為，探索宇宙不僅讓人類更好地了解宇宙的發(fā)展，還可以用來(lái)指導(dǎo)農(nóng)業(yè)生產(chǎn)，以及把一些探索太空的高新技術(shù)用于現(xiàn)實(shí)生活；也有一些人認(rèn)為探索太空花掉了大量的人力物力；影響了人們的生活水平。請(qǐng)你根據(jù)以下情況寫一篇報(bào)告并發(fā)表自己的觀點(diǎn)。注意：1.寫作內(nèi)容應(yīng)包括以上全部要點(diǎn)，可適當(dāng)發(fā)揮，使上下文連貫；
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Discovering Useful Structure教學(xué)設(shè)計(jì)
The theme of the section is “Describe space facts and efforts to explore space”. Infinitives are one of non-finite verbs, as the subjects, objects, predicative, attributes and adverbials. This unit is about space exploration, which is a significant scientific activity, so every scientific activity has strong planning. Therefore, using the infinitives to show its purpose, explanations or restrictions is the best choice.1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use infinitives in oral and writing English. 1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use use infinitives in oral and writing English.Step 1 Lead in---Pair workLook at the following sentences and focus on the italicized infinitives. In pairs, discuss their functions. 1. I trained for a long time to fly airplanes as a fighter pilot..(作目的狀語(yǔ))2. As we all know, an astronaut needs to be healthy and calm in order to work in space..(作目的狀語(yǔ))3. First of all, you must be intelligent enough to get a related college degree..(作目的狀語(yǔ))4. Some scientist were determined to help humans realise their dream to explore space..(作定語(yǔ))5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space..(作定語(yǔ))Summary:1. 不定式的結(jié)構(gòu)：to+do原形。2. 分析上面的句子，我們知道在描述太空探索時(shí)，動(dòng)詞不定式不僅可以用來(lái)表目的，還可以用來(lái)作定語(yǔ)，表修飾。
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計(jì)二
The theme of this unit focuses on “space exploration.” Students will learn about the training and experience needed to become an astronaut. The text is mainly about the development of space exploration. On the one hand, the text helps students to have a good understanding about the great feats humans have achieved, on the other hand, they will further understand the contributions that we Chinese have achieved, and feel confident and proud about our homeland and strengthen their love for our country. The teacher should instruct students to aim high and study harder to make great progress in the space career if possible.1. Read about the development and value of space exploration.2. Explore the mysteries of the universe and the achievements in space exploration.3. Skillfully use the vocabulary of this text to cultivate self-study ability 4. Develop cooperative learning ability through discussion.1. Enable the Ss to talk about the development and value of space exploration.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.3. Help Ss comprehend the main reasons for space exploration. Multi-media, textbook, notebooks.Step 1: Warming up and predictionLook at the title and the pictures of the text and predict what the text will be about?2. What are the main reasons for space exploration?
新人教版高中英語(yǔ)必修3Unit 4 Space Exploration-Reading and Thinking教學(xué)設(shè)計(jì)一
Q4: What is the function of the International exploration ?Having astronauts from different countries on boardQ5: What can you learn from Para 4 ?China has made great achievements in exploring spaceQ6: What is the attitude to the space exploration ?SupportiveStep 6 Post reading---RetellPeople have always wanted to learn more about space. Before the mid-20th century, most people felt (1)_________ (travel) into space was an impossible dream. However, (2)____ the help of scientists, peoplesucceeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)___________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)____ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future.Answers: 1. travelling 2. with 3. to explore 4. was launched 5. Although6. disappointed 7. carrying 8. independently 9. a 10. discoveriesStep 6 Post reading---Critical thinkingQ1: What do you think of the space exploration ? I think it is beneficial to us. Through further study of space, people will make full use of it in the future, such as the space experiments by Wang Yaping in Tian Gong 1.Q2: If you are determined to be an astronaut, what should you prepare at present ?First of all, I should study hard to get a related college degree. Besides, I must keep mental and physical healthy.Step 7. HomeworkTry to summarize the structure of the article by a mind map.
人教版高中語(yǔ)文必修3《學(xué)會(huì)寬容 學(xué)習(xí)選擇和使用論據(jù)》教案2篇
評(píng)價(jià)分析法，就是引述事例后，對(duì)所引述的事例作適當(dāng)?shù)脑u(píng)價(jià)，從而使自己的觀點(diǎn)得到印證。例如，在論“節(jié)儉”時(shí)，引用了“曾國(guó)藩以儉戒子，其子曾紀(jì)澤終成出色的外交家；方志敏居官不貪，一生清貧，千古留名”的事實(shí)后，接著進(jìn)行分析：是的，“儉者心常富”，節(jié)儉能培養(yǎng)人同困難作斗爭(zhēng)的勇氣和意志，而這正是一個(gè)人立業(yè)最重要的素質(zhì)。從這個(gè)意義上說(shuō)，有人說(shuō)饑餓是人生的佐料，吃苦是一種資本也不無(wú)道理，而自覺(jué)和戒奢尚儉則更是促人修身養(yǎng)性，磨煉意志的有效途徑。這里，作者緊扣論點(diǎn)，對(duì)論據(jù)進(jìn)行了評(píng)價(jià)性分析，這種評(píng)價(jià)分析使作者的觀點(diǎn)得到強(qiáng)化。（四）因果分析法因果分析法，就是抓住論據(jù)所述的事實(shí)，并據(jù)此推求形成原因的一種分析方法。事出必有其因。我們可以依據(jù)事物發(fā)展變化的因果關(guān)系，由事物發(fā)展變化的結(jié)果，推導(dǎo)出產(chǎn)生這種結(jié)果的原因，從而揭示出一定的生活規(guī)律，使事例有力地證明觀點(diǎn)。
人教版新課標(biāo)高中物理必修1物理學(xué)與人類文明教案2篇
1. 課前觀看視頻《物理學(xué)與人類文明》2. 分組討論，派代表發(fā)言，談學(xué)習(xí)感受。主要是物理的地位，物理的學(xué)習(xí)方法。3. 高中物理與初中物理在內(nèi)容和方法上的區(qū)別高中物理除了現(xiàn)象、概念和規(guī)律之外還應(yīng)該關(guān)注研究問(wèn)題的方法，學(xué)會(huì)從先想到抽象，從定性到定量研究問(wèn)題，學(xué)會(huì)用數(shù)學(xué)方法解決物理問(wèn)題，學(xué)會(huì)實(shí)驗(yàn)探究，學(xué)會(huì)獨(dú)立分析問(wèn)題解決問(wèn)題的思維習(xí)慣。4. 高中物理學(xué)習(xí)的基本要求高中物理學(xué)習(xí)應(yīng)該“重視實(shí)驗(yàn)，勤于思考”和“經(jīng)歷過(guò)程，體驗(yàn)方法”。高中物理學(xué)習(xí)與初中物理學(xué)習(xí)雖然有一定區(qū)別，但也不是孤立的，要繼續(xù)堅(jiān)持初中物理學(xué)習(xí)中積累的學(xué)習(xí)方法和體會(huì)，重視從正反兩個(gè)方面加以總結(jié)和提煉，做到：（1） 認(rèn)真閱讀，學(xué)會(huì)自學(xué)要學(xué)好物理，就要認(rèn)真閱讀課本。閱讀課本是要抓住關(guān)鍵詞語(yǔ)，弄清語(yǔ)句間的邏輯順序和因果關(guān)系，領(lǐng)會(huì)文章段落所表達(dá)的物理內(nèi)容，掌握課本敘述物理問(wèn)題的表達(dá)方法。
人教版新課標(biāo)高中地理必修2第一章第三節(jié)人口合理容量教案
生：環(huán)境承載力是指環(huán)境能持續(xù)供養(yǎng)的人口數(shù)量。師：對(duì)了。但是有同學(xué)仍然會(huì)感到這是一個(gè)很抽象的概念。下面我們具體來(lái)了解什么是環(huán)境承載力。我們可以從兩個(gè)部分去理解：一、環(huán)境，它主要是指環(huán)境的單個(gè)要素（如：土地、水、氣候、植被等。）及其組合方式。二、是承載力，它指在特定的條件下，具體某事物能承受的某種活動(dòng)的最大值。那環(huán)境承載力的科學(xué)定義是怎樣表達(dá)的呢？生：環(huán)境承載力是指某一時(shí)期，某種狀態(tài)條件下，某地區(qū)環(huán)境所能承受的人類活動(dòng)作用的閾值。師：很對(duì)。 我們可以用一個(gè)生動(dòng)的例子來(lái)說(shuō)明。一只木桶里面的水的多少在底面積固定不變的情況下是由哪塊木板來(lái)決定？生：最短的那塊。師：確實(shí)如此。這就是我們平常所講的 “木桶效應(yīng)”。那影響環(huán)境承載力的大小也是由環(huán)境個(gè)要素里面最緊缺的那個(gè)要素來(lái)決定的。下面我們用一個(gè)例子來(lái)印證一下。
人教版新課標(biāo)高中物理必修1物理學(xué)與人類文明教案2篇
八、物理學(xué)的基礎(chǔ)地位及物理學(xué)對(duì)人類文明、社會(huì)進(jìn)步的影響。（1） 情景一：磁懸浮實(shí)驗(yàn)：找兩個(gè)空心的圓柱片磁鐵，同名磁極相對(duì)，穿在同一根竹筷上，用手壓下上面的磁鐵，松手觀察它的運(yùn)動(dòng)情況。問(wèn)題1：上面的磁鐵為什么會(huì)跳起來(lái)，為什么會(huì)懸浮在下面的磁鐵上方？問(wèn)題2：根據(jù)這個(gè)實(shí)驗(yàn)，你會(huì)想到那一種交通工具？總結(jié)：人們就是從磁懸浮現(xiàn)象中得到啟發(fā)，進(jìn)行磁懸浮列車的研究和制造的，這說(shuō)明物理學(xué)在推動(dòng)社會(huì)進(jìn)步、人類文明方面起到推動(dòng)作用。（2） 情景二：感應(yīng)起電和火花放電實(shí)驗(yàn)：用感應(yīng)起電機(jī)或感應(yīng)圈產(chǎn)生火花放電，讓學(xué)生觀察現(xiàn)象，聞氣味，然后聯(lián)想生活實(shí)例。還可以用一張紙?jiān)囍鴵踝》烹姷幕」?，最好能引燃紙張，說(shuō)明雷擊引起火災(zāi)的現(xiàn)象。問(wèn)題1：你看、聽(tīng)到了什么現(xiàn)象？問(wèn)題2：根據(jù)這個(gè)實(shí)驗(yàn)，你會(huì)想到那一種自然現(xiàn)象？問(wèn)題3：放電發(fā)生在什么地方？為什么建筑物上方都有尖尖的設(shè)置，是干什么用的？問(wèn)題4：你聞到什么氣味了嗎？
人教版新課標(biāo)高中物理必修1牛頓第一定律教案3篇
一、知識(shí)與技能１、知道伽利略的理想實(shí)驗(yàn)及其主要推理過(guò)程和推論，知道理想實(shí)驗(yàn)是科學(xué)研究的重要方法２、理解牛頓第一定律的內(nèi)容及意義；理解力和運(yùn)動(dòng)的關(guān)系，知道物體的運(yùn)動(dòng)不需要力來(lái)維持。３、理解慣性的概念，知道質(zhì)量是慣性大小的量度；會(huì)用慣性解釋一些現(xiàn)象。二、過(guò)程與方法１、觀察生活中的慣性現(xiàn)象，了解力和運(yùn)動(dòng)的關(guān)系２、通過(guò)實(shí)驗(yàn)加深對(duì)牛頓第一定律的理解３、理解理想實(shí)驗(yàn)是科學(xué)研究的重要方法三、情感態(tài)度與價(jià)值觀１、通過(guò)伽利略和亞里士多德對(duì)力和運(yùn)動(dòng)關(guān)系的不同認(rèn)識(shí)，了解人類認(rèn)識(shí)事物本質(zhì)的曲折性２、感悟科學(xué)是人類進(jìn)步的不竭動(dòng)力［教學(xué)重點(diǎn)］１、理解力和運(yùn)動(dòng)的關(guān)系２、對(duì)牛頓第一定律和慣性的正確理解３、理想實(shí)驗(yàn)［教學(xué)難點(diǎn)］１、力和運(yùn)動(dòng)的關(guān)系２、慣性和質(zhì)量的關(guān)系
人教版新課標(biāo)高中物理必修1自由落體運(yùn)動(dòng)教案2篇
教學(xué)重點(diǎn)1．自由落體運(yùn)動(dòng)的概念及探究自由落體運(yùn)動(dòng)的過(guò)程。2．掌握自由落體運(yùn)動(dòng)規(guī)律，并能運(yùn)用其解決實(shí)際問(wèn)題。教學(xué)難點(diǎn)演示實(shí)驗(yàn)和探究實(shí)驗(yàn)的技巧及自由落體運(yùn)動(dòng)規(guī)律的得出.教學(xué)過(guò)程設(shè)計(jì)思想：1、 先用游戲激發(fā)學(xué)生學(xué)習(xí)興趣，順理成章地研究落體運(yùn)動(dòng)；2、 通過(guò)演示實(shí)驗(yàn)讓學(xué)生自己總結(jié)出物體下落快慢不同的主要原因是空氣阻力，從而猜想若沒(méi)有空氣阻力會(huì)怎樣；3、 用牛頓管實(shí)驗(yàn)驗(yàn)證猜想，引入了新的理想運(yùn)動(dòng)模型：自由落體運(yùn)動(dòng)。講述1971年宇航員做的實(shí)驗(yàn)，加深印象；4、 了解地球表面物體下落運(yùn)動(dòng)近似成自由落體運(yùn)動(dòng)的條件；5、 著手研究自由落體運(yùn)動(dòng)的規(guī)律，利用打點(diǎn)計(jì)時(shí)器進(jìn)行研究，得到結(jié)論；6、 總結(jié)自由落體運(yùn)動(dòng)特點(diǎn)及重力加速度；7、 應(yīng)用訓(xùn)練
人教版新課標(biāo)高中物理必修1力學(xué)單位制教案2篇
一、教材分析在初中階段，物理量單位的學(xué)習(xí)是學(xué)生較為困惑的問(wèn)題之一。前面關(guān)于1N的規(guī)定給學(xué)生的印象總好像是有些隨意。尤其是牛頓、帕斯卡、安培、伏特、焦耳、瓦特等單位的規(guī)定。使得學(xué)生感動(dòng)物理太復(fù)雜。事實(shí)上，只有把單位制放在整個(gè)物理學(xué)框架中加以認(rèn)識(shí)，并且知識(shí)有了一定的積累。經(jīng)歷了充分的學(xué)習(xí)過(guò)程后才能體會(huì)物理量單位的命名和使用規(guī)則。體會(huì)到其中對(duì)一些單位進(jìn)行規(guī)定的合理性和方便特征。物理學(xué)單位中，有很少幾個(gè)基本物理量，它們的單位就是基本單位。在進(jìn)行了這種選定之后，其它物理量的單位就是根據(jù)它的定義式，有所選擇的其他物理量的單位共同確定的。國(guó)際單位制的建立和使用，不僅方便了國(guó)際間的交流，也逐漸成為科學(xué)研究中計(jì)算和運(yùn)用的一種規(guī)范約束。中學(xué)生應(yīng)該注意學(xué)習(xí)，逐步習(xí)慣，在記錄、表達(dá)和計(jì)算中規(guī)范使用。二、教學(xué)目標(biāo)（一）知識(shí)與技能1．了解什么是單位制，知道力學(xué)中的三個(gè)基本單位；2．認(rèn)識(shí)單位制在物理計(jì)算中的作用
