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人教版新課標(biāo)小學(xué)數(shù)學(xué)一年級(jí)下冊(cè)上下 說課稿4篇

  • 新人教版高中英語必修3Unit 2 Morals and Virtues-Reading for Writing教學(xué)設(shè)計(jì)

    新人教版高中英語必修3Unit 2 Morals and Virtues-Reading for Writing教學(xué)設(shè)計(jì)

    1. 這個(gè)寓言是一個(gè)關(guān)于一位國(guó)王古寓言。 The fable is an old fable about a king.2.作者用這個(gè)故事讓讀者對(duì)于社區(qū)的問題負(fù)有個(gè)人責(zé)任的必要印象深刻。The author used the story to impress upon readers with the need to take personal responsibility for problems in the community.3. 這個(gè)故事十分成功的實(shí)現(xiàn)了它的目的。The story was quite successful in achieving its purpose.Step 7 WritingPlease write a review of the story according the outline above.The fable is an old fable about a king who thought his people are lazy, so he put a large stone in the middle of the road and hides and waited to see if anyone will try to move it.The author used this story to impress upon readers with the need to take personal responsibility for problems in the community. The story was quite successful in achieving its purpose, and I liked it because it had a clear moral.However, while the moral of the story is clear, the actions of the king seemed pointless to me, because none of the characters in the story learnt anything. For this reason, I think there are better stories that can be used to impress upon people with the need for personal responsibility.Step 8 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer give a short description of the story ?2. Does the description include the most important details of the story ?3. Does the writer give his or her opinion about the character or their actions ?4. Is the review well-organised ? 5. Does the writer use the -ing form as the adverbial correctly in the writing ?6. Are there any grammar, spelling, or punctuation errors ?Step 9 HomeworkPut up your revised draft in the classroom or read it to your class.

  • 新人教版高中英語必修3Unit 3 Diverse Cultures-Discovering Useful Structure教學(xué)設(shè)計(jì)

    新人教版高中英語必修3Unit 3 Diverse Cultures-Discovering Useful Structure教學(xué)設(shè)計(jì)

    Step 4 PracticeRead the conversation. Find out which words have been left out.Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Any recommendations for places to visit?Linlin: Wow, cool! Guizhou is a province with a lot of cultural diversity. Places to visit...well, definitely the Huangguoshu Waterfall first.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have. Why ?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King.Justin: Really? Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages. You’ll find Chinese culture is much more diverse than you thought.Justin:Sounds great, thanks.Answers:Justin: Linlin, I’m going to Guizhou Province next month. I’m super excited! Do you have any recommendations for places to visit?Linlin: Wow, that’s cool! Guizhou is a province with a lot of cultural diversity. What are some places to visit in Guizhou ? Well, definitely the Huangguoshu Waterfall is the first place to visit in Guizhou Province.Justin: What’s special about the waterfall?Linlin: Well, have you ever heard of the Chinese novel Journey to the West ?Justin: Yes, I have heard of the Chinese novel Journey to the West . Why do you ask if I have heard of the Chinese novel Journey to the West?Linlin: In the back of the waterfall, you will find a cave, which is the home of the Monkey King from Journey to the West.Justin: That’s really true? It’s Cool! I’ll definitely check it out.Linlin:And I strongly recommend the ethnic minority villages on your trip to Guizhou Province. You’ll find Chinese culture is much more diverse than you thought it was.Justin:This all sounds great, thanks.

  • 新人教版高中英語選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)

    Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention,the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys: 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat

  • 新人教版高中英語選修2Unit 1 Science and Scientists-Using langauge教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 1 Science and Scientists-Using langauge教學(xué)設(shè)計(jì)

    This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!

  • 新人教版高中英語選修2Unit 2 Bridging Cultures-Discovering useful structures教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 2 Bridging Cultures-Discovering useful structures教學(xué)設(shè)計(jì)

    The grammar of this unit is designed to review noun clauses. Sentences that use nouns in a sentence are called noun clauses. Nominal clauses can act as subject, object, predicate, appositive and other components in compound sentences. According to the above-mentioned different grammatical functions, nominal clauses are divided into subject clause, object clause, predicate clause and appositive clause. In this unit, we will review the three kinds of nominal clauses. Appositive clauses are not required to be mastered in the optional compulsory stage, so they are not involved.1. Guide the students to judge the compound sentences and determine the composition of the clauses in the sentence.2. Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.3. Inspire the students to systematize the function and usage of noun clause1.Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.2.Inspire the students to systematize the function and usage of noun clauseStep1: The teacher ask studetns to find out more nominal clauses from the reading passage and udnerline the nominal clauses.

  • 新人教版高中英語選修2Unit 5 First Aid-Discovering useful structures教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 5 First Aid-Discovering useful structures教學(xué)設(shè)計(jì)

    You have no excuse for not going.你沒有理由不去。He was punished for not having finished his homework.他因未完成作業(yè)而受到懲罰。2.動(dòng)詞­ing形式復(fù)合結(jié)構(gòu)由物主代詞或人稱代詞賓格、名詞所有格或普通格加動(dòng)詞­ing,即“sb./sb.'s+doing”構(gòu)成。動(dòng)詞­ing形式的復(fù)合結(jié)構(gòu)實(shí)際上是給動(dòng)詞­ing形式加了一個(gè)邏輯主語。動(dòng)詞­ing形式的復(fù)合結(jié)構(gòu)有四種形式:①形容詞性物主代詞+動(dòng)詞­ing②名詞所有格+動(dòng)詞­ing③代詞賓格+動(dòng)詞­ing④名詞+動(dòng)詞­ingHer coming to help encouraged all of us.她來幫忙鼓舞了我們所有人。The baby was made awake by the door suddenly shutting.這個(gè)嬰兒被突然的關(guān)門聲吵醒了。Can you imagine him/Jack cooking at home?你能想象他/杰克在家做飯的樣子嗎?無生命名詞無論是作主語還是作賓語都不能用第②種形式。Tom's winning first prize last year impressed me a lot.湯姆去年得了一等獎(jiǎng)使我印象深刻。Do you mind my/me/Jack's/Jack leaving now?你介意我/杰克現(xiàn)在離開嗎?Excuse me for my not coming on time.很抱歉我沒能按時(shí)來。His father's being ill made him worried.他父親病了,他很擔(dān)心。We are looking forward to the singer's/the singer to give us a concert.我們盼望著這位歌手來給我們舉辦一場(chǎng)演唱會(huì)。

  • XX年1月國(guó)旗下講話:做一個(gè)具有創(chuàng)新能力的人

    XX年1月國(guó)旗下講話:做一個(gè)具有創(chuàng)新能力的人

    我們中華民族是一個(gè)聰明,勤勞的民族,我們的祖先曾經(jīng)為人類提供了開啟世界文明之門的"四大發(fā)明",而在近百年來科學(xué)技術(shù)史上,卻很少有中國(guó)人的名字。形成這種現(xiàn)狀的原因是什么呢?我想,這跟我們民族的創(chuàng)新能力下降有很大的關(guān)系??茖W(xué)的本質(zhì)是創(chuàng)新,那么創(chuàng)新的本質(zhì)又是什么呢?我認(rèn)為,創(chuàng)新的本質(zhì)是進(jìn)取,是不做復(fù)制者,單純的模仿不是創(chuàng)新,令人生厭的重復(fù)也只會(huì)造成原創(chuàng)力的降低。創(chuàng)新不容易但并不神秘,可以說,任何人都可以創(chuàng)新。當(dāng)然知識(shí)越豐富的,他創(chuàng)新的機(jī)會(huì)就越多??赡苡行┩瑢W(xué)會(huì)認(rèn)為創(chuàng)新只是科學(xué)家才能做的事情,其實(shí)不是的。下面我就給大家講一個(gè)真實(shí)的故事。美國(guó)有個(gè)叫李小曼的畫家,他平時(shí)做事總是丟三落四,繪畫時(shí)也不例外,常常是剛剛找到鉛筆,又望了橡皮放在哪兒了。

  • 人教版高中政治必修1第十一課 經(jīng)濟(jì)全球化與對(duì)外開放教案

    人教版高中政治必修1第十一課 經(jīng)濟(jì)全球化與對(duì)外開放教案

    材料說明了什么?探究二:材料分析:2005年12月13日至18日,WTO第六次部長(zhǎng)級(jí)會(huì)議在香港召開。會(huì)議經(jīng)過談判通過了《部長(zhǎng)宣言》,規(guī)定發(fā)達(dá)成員和部分發(fā)展中成員2008年前向最不發(fā)達(dá)國(guó)家所有產(chǎn)品提供免關(guān)稅、免配額的市場(chǎng)準(zhǔn)入;發(fā)達(dá)成員2006年取消棉花的出口補(bǔ)貼, 2013年年底前取消所有形式農(nóng)產(chǎn)品出口補(bǔ)貼。材料體現(xiàn)了世界貿(mào)易組織在國(guó)際經(jīng)濟(jì)貿(mào)易領(lǐng)域中發(fā)揮哪些作用?探究三:P97:A、這些圖示,反映出我國(guó)利用外資哪些特點(diǎn)?。B、能為我國(guó)提高外資利用水平提出些建議嗎?探究四:材料展示:我國(guó)是人口眾多的發(fā)展中大國(guó),全國(guó)居民每天消費(fèi)總額達(dá)到37億元。每天消費(fèi)糧食75萬噸,相當(dāng)于一個(gè)縣級(jí)商品糧基地的全年產(chǎn)量;每天消耗豬肉6萬噸,食油1萬噸,糖1.6萬噸,鮮蛋1.8萬噸。每天購(gòu)買雜志600多萬冊(cè),報(bào)紙5000多萬份,需要400量中型載貨汽車才能裝載。

  • 人教版高中政治必修3第一課文化與社會(huì)精品教案

    人教版高中政治必修3第一課文化與社會(huì)精品教案

    (2)歷史課本中歷朝歷代的文化發(fā)展。(3)政治生活中關(guān)于綜合國(guó)力競(jìng)爭(zhēng)的相關(guān)知識(shí)。(4)了解文化產(chǎn)業(yè)的發(fā)展,深入體會(huì)知識(shí)經(jīng)濟(jì)、文化經(jīng)濟(jì)現(xiàn)象。五、【方法點(diǎn)津】:(1)堅(jiān)持理論聯(lián)系實(shí)際的方法,感悟文化現(xiàn)象,理解文化內(nèi)涵,分析文化的作用,增強(qiáng)文化學(xué)習(xí)的自覺性。(2)自學(xué)探究。以課本的簡(jiǎn)單提示為線索,深入探究文化與經(jīng)濟(jì)、政治的相互交融,探究文化在綜合國(guó)力競(jìng)爭(zhēng)中的地位和作用。(3)集體討論。針對(duì)當(dāng)前國(guó)際競(jìng)爭(zhēng)的實(shí)質(zhì),探討我國(guó)應(yīng)如何發(fā)展文化產(chǎn)業(yè)、發(fā)展文化生產(chǎn)力、增強(qiáng)文化競(jìng)爭(zhēng)力;討淪為更好地應(yīng)對(duì)文化競(jìng)爭(zhēng),作為中學(xué)生目前應(yīng)做好哪些準(zhǔn)備。六、【課文導(dǎo)語】:文化,一個(gè)我們十分熟悉的詞匯。然而“熟知并非真知”。有人說,文化是知識(shí);有人說,文化是藝術(shù)。究竟什么是“文化”?只要在社會(huì)生活中細(xì)細(xì)體味,我們就能真切地感悟“文化”的內(nèi)涵與文化的力量。

  • 教學(xué)反思數(shù)學(xué)仿編應(yīng)用題活動(dòng)《小鬼當(dāng)家》課件教案

    教學(xué)反思數(shù)學(xué)仿編應(yīng)用題活動(dòng)《小鬼當(dāng)家》課件教案

    目的:1、讓幼兒學(xué)會(huì)仿編和解答4的加減應(yīng)用題。2、在生活情景中能根據(jù)水果卡片自編4的加減應(yīng)用題。準(zhǔn)備:1、知識(shí)經(jīng)驗(yàn)準(zhǔn)備:請(qǐng)家長(zhǎng)帶 幼兒去買東西,使幼兒了解一個(gè)買與賣的過程。2、物質(zhì)準(zhǔn)備:準(zhǔn)備各種水果卡片,人手4個(gè)替代物作錢。過程:一、以“幫農(nóng)民伯伯摘果子”引入?!靶∨笥?,果園里的水果都成熟了,農(nóng)民伯伯想請(qǐng)你們幫他摘水果,你們?cè)敢鈫??”(愿意)二、游戲“摘水果”。師交代游戲玩法和?guī)則。三、分類活動(dòng):分水果。1、引導(dǎo)幼兒將自己所摘的水果跟同伴之間進(jìn)行交流。2、交代任務(wù):將各種水果分別放在筐里。

  • 人教版高中語文必修1《小狗包弟》教案2篇

    人教版高中語文必修1《小狗包弟》教案2篇

    巴金在十年浩劫中的大致經(jīng)歷:放棄包弟并沒有換得保全一家人,1968年8月,巴金被關(guān)進(jìn)牛棚改造,隨后經(jīng)受了大字報(bào)、掛牌游街等形式的批斗。1970年,到農(nóng)村改造,掏大糞、喂豬、背稻草、種地……1972年,妻子蕭珊在飽受精神折磨后患上癌癥,病逝。巴金的兒子在勞動(dòng)改造的過程中也飽受精神和肉體上的折磨,性格變得內(nèi)向抑郁,疾病纏身。此時(shí),巴金69歲。巴金曾在《病中》一文寫道:“當(dāng)姚文元拿著棒子的時(shí)候,我給關(guān)在牛棚里除了唯唯諾諾之外,敢于做過什么事情?十年間我不過是一條含著眼淚等人宰割的牛。”小結(jié):(幻燈片12)社會(huì)是病態(tài)的社會(huì),政治是高壓的政治,人性是扭曲的人性。十年文革,十年浩劫,給多少人留下了累累不可彌合的精神創(chuàng)傷。即使一條小狗,也可能擺脫不了“文革”無情的迫害,比如包弟,比如藝術(shù)家鄰居的小狗。

  • 學(xué)校后勤個(gè)人工作計(jì)劃(推薦4篇)

    學(xué)校后勤個(gè)人工作計(jì)劃(推薦4篇)

    1、組織我校后勤職工統(tǒng)一思想認(rèn)識(shí),強(qiáng)化職業(yè)道德教育,增強(qiáng)責(zé)任感,進(jìn)一步提高后勤工作人員的業(yè)務(wù)素質(zhì)和思想素質(zhì),以勝任形勢(shì)的發(fā)展和工作的需要。2、堅(jiān)持管理育人、服務(wù)育人的方向,倡導(dǎo)“勤思、務(wù)實(shí)、高效、優(yōu)質(zhì)”的工作作風(fēng),讓全體后勤人員認(rèn)識(shí)學(xué)校后勤工作的重要性。解放思想,實(shí)事求是,逐步養(yǎng)成良好的工作習(xí)慣,以高度的責(zé)任感、緊迫感和主人翁意識(shí)投入到工作中來。3、聯(lián)系校本實(shí)際,完善各項(xiàng)制度,制定實(shí)施細(xì)則。

  • 3.30全國(guó)中小學(xué)生安全教育日國(guó)旗下講話稿

    3.30全國(guó)中小學(xué)生安全教育日國(guó)旗下講話稿

    同學(xué)們:“全國(guó)中中職生安全教育日”是定在每年3月份的最后一個(gè)星期的星期一。今天是3月30日,是XX年3月份最后一個(gè)星期的周一,所以在此跟同學(xué)們談以下幾個(gè)全面:1、做好春季防病。春季是多種傳染病流行的季節(jié),同學(xué)們要注意個(gè)人衛(wèi)生,勤洗手,教室勤通風(fēng),勤鍛煉,不暴飲暴食。2、不允許玩火、玩電,防止人身傷害,防止意外事故的發(fā)生。禁止將爆竹、火柴、打火機(jī)等易燃、易爆品帶入校園,更不允許將刀、彈弓、防真氣槍等危險(xiǎn)玩具帶進(jìn)校園。

  • 第21個(gè)全國(guó)中小學(xué)安全教育日國(guó)旗下講話稿

    第21個(gè)全國(guó)中小學(xué)安全教育日國(guó)旗下講話稿

    老師們、同學(xué)們:早上好!三月,是春風(fēng)和煦、萬木吐綠、百花盛開、欣欣向榮的美好季節(jié),俗話說:“一年之際在于春?!比藗儼言S多節(jié)日或者紀(jì)念日都放在了三月,我們走進(jìn)三月,也就走進(jìn)了三月的每一個(gè)有意義的節(jié)日。重要的節(jié)日或者紀(jì)念日就有下面這幾個(gè):3月5日:“向雷鋒同志學(xué)習(xí)”紀(jì)念日,3月8日:國(guó)際勞動(dòng)?jì)D女節(jié),3月12日:中國(guó)植樹節(jié),3月15日:國(guó)際消費(fèi)者權(quán)益日,3月21日:世界睡眠日,3月22日:世界水日,3月23日:世界氣象日。今天我講的是大家可能還不太熟悉的一個(gè)紀(jì)念日:那就是全國(guó)中小學(xué)安全宣傳教育日。這個(gè)教育日,是由國(guó)家有關(guān)部門發(fā)出的,確定每年三月最后一個(gè)周的星期一作為全國(guó)中小學(xué)生“安全教育日”。其目的是為推動(dòng)中小學(xué)安全教育工作,降低少年兒童傷亡事故的發(fā)生率,保證少年兒童的健康成長(zhǎng)。

  • 全國(guó)中小學(xué)生安全教育日國(guó)旗下講話稿

    全國(guó)中小學(xué)生安全教育日國(guó)旗下講話稿

    老師們、同學(xué)們,大家上午好!在全國(guó)第22個(gè)中小學(xué)生安全教育日來臨之際,河南省教育廳和鄭州市教育局今天聯(lián)合在鄭州市實(shí)驗(yàn)高級(jí)中學(xué)舉行安全會(huì)議和學(xué)生的演練活動(dòng)。我首先代表河南省教育廳向本次活動(dòng)的承辦單位表示衷心的感謝,向辛勤工作在教育一線的各位老師們表示崇高的敬意,向熱愛生活,勤奮學(xué)習(xí)的各位同學(xué)表示親切的慰問。今年的中小學(xué)生安全教育活動(dòng)主題是“強(qiáng)化安全意識(shí),提升安全素養(yǎng)”。我個(gè)人認(rèn)為要想唱響活動(dòng),我們需要落實(shí)到每一個(gè)環(huán)節(jié),需要大家做出以下“四個(gè)努力”:首先,校長(zhǎng)要做出努力。大家知道,校長(zhǎng)是學(xué)校安全的責(zé)任人,所以我們每一位校長(zhǎng)在學(xué)校的各項(xiàng)工作當(dāng)中,應(yīng)該始終把學(xué)校的安全,師生的安全放在各項(xiàng)工作的首位。第二,要完善制度,明確責(zé)任。學(xué)校的教育教學(xué)活動(dòng)、體育娛樂活動(dòng)、社會(huì)實(shí)踐活動(dòng),后勤保障、醫(yī)療服務(wù)等各方面,我們都要有完善的制度。要明確每一個(gè)單位、每一個(gè)部門,包括每一位教職工的責(zé)任。大家都知道,我這個(gè)崗位應(yīng)該怎么做,防止出現(xiàn)漏洞。第三,我感覺到要根據(jù)各個(gè)學(xué)校的情況,及時(shí)全面的進(jìn)行安全漏洞的排查,發(fā)現(xiàn)隱患及時(shí)處置,不留漏洞。校長(zhǎng)如果把這些事情做好了,可以說,我們就是一個(gè)比較安全的校園,我們的責(zé)任就盡到了。

  • 人教A版高中數(shù)學(xué)必修一奇偶性教學(xué)設(shè)計(jì)(2)

    人教A版高中數(shù)學(xué)必修一奇偶性教學(xué)設(shè)計(jì)(2)

    《奇偶性》內(nèi)容選自人教版A版第一冊(cè)第三章第三節(jié)第二課時(shí);函數(shù)奇偶性是研究函數(shù)的一個(gè)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(duì)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(biāo)1、理解函數(shù)的奇偶性及其幾何意義;2、學(xué)會(huì)運(yùn)用函數(shù)圖象理解和研究函數(shù)的性質(zhì);3、學(xué)會(huì)判斷函數(shù)的奇偶性.?dāng)?shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象:用數(shù)學(xué)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(xué)運(yùn)算:運(yùn)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(xué)建模:在具體問題情境中,運(yùn)用數(shù)形結(jié)合思想,利用奇偶性解決實(shí)際問題。重點(diǎn):函數(shù)奇偶性概念的形成和函數(shù)奇偶性的判斷;難點(diǎn):函數(shù)奇偶性概念的探究與理解.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。

  • 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)

    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]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]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)必修一任意角教學(xué)設(shè)計(jì)(1)

    人教A版高中數(shù)學(xué)必修一任意角教學(xué)設(shè)計(jì)(1)

    本節(jié)課選自《普通高中課程標(biāo)準(zhǔn)數(shù)學(xué)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(shí),本節(jié)主要介紹推廣角的概念,引入正角、負(fù)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(yùn)動(dòng)變化的觀點(diǎn),并由此進(jìn)一步理解推廣后的角的概念。教學(xué)方法可以選用討論法,通過實(shí)際問題,如時(shí)針與分針、體操等等都能形成角的流念,給學(xué)生以直觀的印象,形成正角、負(fù)角、零角的概念,明確規(guī)定角的概念,通過具體問題讓學(xué)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(fù)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(huì)判斷角所在的象限。 1.數(shù)學(xué)抽象:角的概念;2.邏輯推理:象限角的表示;3.數(shù)學(xué)運(yùn)算:判斷角所在象限;4.直觀想象:從特殊到一般的數(shù)學(xué)思想方法;

  • 人教A版高中數(shù)學(xué)必修一任意角教學(xué)設(shè)計(jì)(2)

    人教A版高中數(shù)學(xué)必修一任意角教學(xué)設(shè)計(jì)(2)

    學(xué)生在初中學(xué)習(xí)了 ~ ,但是現(xiàn)實(shí)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(dòng)輪和被動(dòng)輪的旋轉(zhuǎn)方向不一致.因此為了準(zhǔn)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(jìn)行推廣.課程目標(biāo)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.?dāng)?shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)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(xué)運(yùn)算:會(huì)判斷象限角及終邊相同的角.重點(diǎn):理解象限角的概念及終邊相同的角的含義;難點(diǎn):掌握判斷象限角及表示終邊相同的角的方法.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)入初中對(duì)角的定義是:射線OA繞端點(diǎn)O按逆時(shí)針方向旋轉(zhuǎn)一周回到起始位置,在這個(gè)過程中可以得到 ~ 范圍內(nèi)的角.但是現(xiàn)實(shí)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(dòng)輪和被動(dòng)輪的旋轉(zhuǎn)方向不一致.

  • 人教A版高中數(shù)學(xué)必修一誘導(dǎo)公式教學(xué)設(shè)計(jì)(2)

    人教A版高中數(shù)學(xué)必修一誘導(dǎo)公式教學(xué)設(shè)計(jì)(2)

    本節(jié)主要內(nèi)容是三角函數(shù)的誘導(dǎo)公式中的公式二至公式六,其推導(dǎo)過程中涉及到對(duì)稱變換,充分體現(xiàn)對(duì)稱變換思想在數(shù)學(xué)中的應(yīng)用,在練習(xí)中加以應(yīng)用,讓學(xué)生進(jìn)一步體會(huì) 的任意性;綜合六組誘導(dǎo)公式總結(jié)出記憶誘導(dǎo)公式的口訣:“奇變偶不變,符號(hào)看象限”,了解從特殊到一般的數(shù)學(xué)思想的探究過程,培養(yǎng)學(xué)生用聯(lián)系、變化的辯證唯物主義觀點(diǎn)去分析問題的能力。誘導(dǎo)公式在三角函數(shù)化簡(jiǎn)、求值中具有非常重要的工具作用,要求學(xué)生能熟練的掌握和應(yīng)用。課程目標(biāo)1.借助單位圓,推導(dǎo)出正弦、余弦第二、三、四、五、六組的誘導(dǎo)公式,能正確運(yùn)用誘導(dǎo)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(guān)三角函數(shù)求值、化簡(jiǎn)和恒等式證明問題2.通過公式的應(yīng)用,了解未知到已知、復(fù)雜到簡(jiǎn)單的轉(zhuǎn)化過程,培養(yǎng)學(xué)生的化歸思想,以及信息加工能力、運(yùn)算推理能力、分析問題和解決問題的能力。

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