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人教版高中地理必修1常見天氣系統(tǒng)教案

  • 人教版高中政治必修4世界是普遍聯(lián)系的說課稿

    人教版高中政治必修4世界是普遍聯(lián)系的說課稿

    新課程要求學(xué)生知識(shí)的獲得由靜態(tài)預(yù)設(shè)到動(dòng)態(tài)生成。作為唯物辯證法的一個(gè)總特征、用聯(lián)系的觀點(diǎn)看問題是學(xué)生遇到的第一個(gè)辯證法思想。本教學(xué)設(shè)計(jì)由日常生活中我們所熟知的情境入手引申到聯(lián)系的概念、使學(xué)生領(lǐng)悟到成語(yǔ)中蘊(yùn)藏著豐富的哲理。而后通過分析日常生活中的事例一一講解聯(lián)系的普遍性、客觀性和多樣性、體現(xiàn)出生活處處有哲學(xué)的理念,符合學(xué)生的認(rèn)知規(guī)律。在教學(xué)過程中、本教學(xué)設(shè)計(jì)安排了必要的學(xué)生活動(dòng)、鍛煉了學(xué)生的思維、充分發(fā)揮了學(xué)生的主體作用。在這一過程中,知識(shí)、情感、態(tài)度、價(jià)值觀目標(biāo)也得到了實(shí)現(xiàn)。具體分析如下:第一、這節(jié)課利用多媒體教學(xué)方式,把書本與豐富多彩的社會(huì)生活聯(lián)系在一起。擴(kuò)大了學(xué)生的眼界和見聞,打破了課堂學(xué)習(xí)時(shí)空的局限,打開了學(xué)生思維的心扉,使學(xué)生不斷產(chǎn)生濃厚的興趣和探究社會(huì)真諦的熱情,并真正成為學(xué)習(xí)的主人,使學(xué)生真正成為教學(xué)過程的主體。

  • 人教版高中政治必修4用對(duì)立統(tǒng)一的觀點(diǎn)看問題說課稿(一)

    人教版高中政治必修4用對(duì)立統(tǒng)一的觀點(diǎn)看問題說課稿(一)

    1、課題引入:11月16日9時(shí)40分許,甘肅慶陽(yáng)市正寧縣榆林子鎮(zhèn)發(fā)生一起重大交通事故,“校車安全”又一次甚囂塵上,我設(shè)計(jì)提問“校車安全事故然表面是偶然,但又是一種必然,你認(rèn)為事件的原因何在?”的問題激發(fā)學(xué)生的閱讀興趣。我設(shè)計(jì)典型事例,通過學(xué)生討論,教師總結(jié)的形式,并得出主次矛盾辯證關(guān)系的原理分析。2、具體分析事件背后的原因,從原因中發(fā)現(xiàn),這眾多的原因矛盾中,都有主次方面之分,由于得出矛盾的主次方面原理。3、從原因中,尋找對(duì)策,既堅(jiān)持重點(diǎn)論與兩點(diǎn)論的結(jié)合。反對(duì)一點(diǎn)論和均衡論。4、無獨(dú)有偶,在2011年在湖南,海南,廣西等地均有類似的事件發(fā)生。對(duì)比各地事故背后的原因,得出應(yīng)具體問題具體分析。進(jìn)而分析具體問題具體分析的意義及地位。

  • 人教版高中政治必修3傳統(tǒng)文化的繼承說課稿3篇

    人教版高中政治必修3傳統(tǒng)文化的繼承說課稿3篇

    (二)課堂教學(xué)在教學(xué)中,無論是形式還是內(nèi)容,都必須統(tǒng)一于學(xué)生的發(fā)展。從形式上說,以學(xué)生展示、思考、討論為主,教師點(diǎn)撥為輔,在一定的情境與社會(huì)文化背景下,獲得對(duì)傳統(tǒng)文化的認(rèn)識(shí)和理解。從內(nèi)容上說,主要以福州地方傳統(tǒng)文化為素材,圍繞海峽兩岸同時(shí)舉辦的“元霄燈會(huì)”為主線,回歸到學(xué)生的生活世界,更有效地激發(fā)起學(xué)生情感,并將生活世界與知識(shí)世界銜接起來,在實(shí)際情景中分析傳授相關(guān)傳統(tǒng)文化的知識(shí),提高學(xué)生認(rèn)識(shí)和分析解決問題的能力,逐步形成對(duì)傳統(tǒng)文化的情感和價(jià)值判斷。教學(xué)過程,緊緊圍繞傳統(tǒng)文化,分為“激趣導(dǎo)入--活動(dòng)感悟--探究思辯--升華導(dǎo)行”四個(gè)層次,環(huán)環(huán)相扣,逐步推進(jìn),幫助學(xué)生完成由感性認(rèn)識(shí)到理性認(rèn)識(shí)的飛躍。1.激趣導(dǎo)入良好的開端是成功的一半。德國(guó)的普克朗認(rèn)為:“思考可以構(gòu)成一座橋,讓我們通向新知識(shí)”。因此,一開始,我就運(yùn)用對(duì)比方法,進(jìn)行設(shè)問,福州和西安、南京、北京一樣也是歷史文化名城,你們同意嗎?

  • 人教版高中政治必修4用對(duì)立統(tǒng)一的觀點(diǎn)看問題說課稿(二)

    人教版高中政治必修4用對(duì)立統(tǒng)一的觀點(diǎn)看問題說課稿(二)

    【設(shè)計(jì)意圖】通過認(rèn)識(shí)自我這一環(huán)節(jié)的設(shè)計(jì),讓學(xué)生能夠準(zhǔn)確的理解矛盾的主次方面,做到能夠正確的評(píng)價(jià)事物,尤其是能夠正確的認(rèn)識(shí)評(píng)價(jià)自己和他人,做到揚(yáng)長(zhǎng)避短,從而達(dá)到情感態(tài)度價(jià)值觀目標(biāo)。為了更好的區(qū)分主次矛盾與矛盾的主次方面,在此我以小組賽的形式設(shè)計(jì)了【我用我學(xué)正確識(shí)別】這一學(xué)生合作探究活動(dòng)來強(qiáng)化對(duì)知識(shí)的掌握。(用時(shí)大約6分鐘)。通過對(duì)難點(diǎn)主次矛盾和矛盾主次方面的深入學(xué)習(xí),師生共同找出其共同之處:均是兩點(diǎn)與重點(diǎn),從而講解主次矛盾和矛盾主次方面共同的方法論要求:堅(jiān)持兩點(diǎn)論與重點(diǎn)論的統(tǒng)一。3、堅(jiān)持具體問題具體分析(約8分鐘)由于第二目知識(shí)點(diǎn)具體問題具體分析內(nèi)容上比較簡(jiǎn)單,因此在過渡后主要以學(xué)生自學(xué)為主,我圍繞“成功”制作兩個(gè)幻燈片作簡(jiǎn)單講解與歸納。

  • 人教版高中語(yǔ)文必修1《人性光輝:寫人要凸顯個(gè)性》說課稿2篇

    人教版高中語(yǔ)文必修1《人性光輝:寫人要凸顯個(gè)性》說課稿2篇

    人教版新課標(biāo)教材必修一的“表達(dá)交流”部分,有一個(gè)專題是“人性的光輝——寫人要凸顯個(gè)性”。其中的“寫法借鑒”部分列舉了兩則人物描寫實(shí)例,并歸納出人物描寫的幾個(gè)要點(diǎn)。其訓(xùn)練的思路和方法是很明顯的,但所列舉的人物描寫的實(shí)例卻不夠典型。而必修一第三單元正好是學(xué)習(xí)寫人記事散文,其中的兩篇自讀課文《記梁任公先生的一次演講》《金岳霖先生》又是寫人記事非常典型的文章,故而我嘗試將這兩篇文章作為實(shí)例和。寫人要凸顯個(gè)性。寫作指導(dǎo)結(jié)合起來教學(xué)。這樣設(shè)計(jì)還有一個(gè)目的,那就是解決課程改革中教學(xué)內(nèi)容多而課時(shí)緊張的矛盾,提高課堂教學(xué)效率。師:今天,我們一起來學(xué)習(xí)“寫人要凸顯個(gè)性”。這兩堂課分四個(gè)步驟來完成:一、先學(xué)習(xí)教材中關(guān)于寫人方法的介紹,約15分鐘;二、快速閱讀第三單元的《記梁任公先生的一次演講》和《金岳霖先生》兩篇文章,具體感受其寫人的方法,約30分鐘;

  • 人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的前n項(xiàng)和公式   (1) 教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的前n項(xiàng)和公式 (1) 教學(xué)設(shè)計(jì)

    新知探究國(guó)際象棋起源于古代印度.相傳國(guó)王要獎(jiǎng)賞國(guó)際象棋的發(fā)明者,問他想要什么.發(fā)明者說:“請(qǐng)?jiān)谄灞P的第1個(gè)格子里放上1顆麥粒,第2個(gè)格子里放上2顆麥粒,第3個(gè)格子里放上4顆麥粒,依次類推,每個(gè)格子里放的麥粒都是前一個(gè)格子里放的麥粒數(shù)的2倍,直到第64個(gè)格子.請(qǐng)給我足夠的麥粒以實(shí)現(xiàn)上述要求.”國(guó)王覺得這個(gè)要求不高,就欣然同意了.假定千粒麥粒的質(zhì)量為40克,據(jù)查,2016--2017年度世界年度小麥產(chǎn)量約為7.5億噸,根據(jù)以上數(shù)據(jù),判斷國(guó)王是否能實(shí)現(xiàn)他的諾言.問題1:每個(gè)格子里放的麥粒數(shù)可以構(gòu)成一個(gè)數(shù)列,請(qǐng)判斷分析這個(gè)數(shù)列是否是等比數(shù)列?并寫出這個(gè)等比數(shù)列的通項(xiàng)公式.是等比數(shù)列,首項(xiàng)是1,公比是2,共64項(xiàng). 通項(xiàng)公式為〖a_n=2〗^(n-1)問題2:請(qǐng)將發(fā)明者的要求表述成數(shù)學(xué)問題.

  • 人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    我們知道數(shù)列是一種特殊的函數(shù),在函數(shù)的研究中,我們?cè)诶斫饬撕瘮?shù)的一般概念,了解了函數(shù)變化規(guī)律的研究?jī)?nèi)容(如單調(diào)性,奇偶性等)后,通過研究基本初等函數(shù)不僅加深了對(duì)函數(shù)的理解,而且掌握了冪函數(shù),指數(shù)函數(shù),對(duì)數(shù)函數(shù),三角函數(shù)等非常有用的函數(shù)模型。類似地,在了解了數(shù)列的一般概念后,我們要研究一些具有特殊變化規(guī)律的數(shù)列,建立它們的通項(xiàng)公式和前n項(xiàng)和公式,并應(yīng)用它們解決實(shí)際問題和數(shù)學(xué)問題,從中感受數(shù)學(xué)模型的現(xiàn)實(shí)意義與應(yīng)用,下面,我們從一類取值規(guī)律比較簡(jiǎn)單的數(shù)列入手。新知探究1.北京天壇圜丘壇,的地面有十板布置,最中間是圓形的天心石,圍繞天心石的是9圈扇環(huán)形的石板,從內(nèi)到外各圈的示板數(shù)依次為9,18,27,36,45,54,63,72,81 ①2.S,M,L,XL,XXL,XXXL型號(hào)的女裝上對(duì)應(yīng)的尺碼分別是38,40,42,44,46,48 ②3.測(cè)量某地垂直地面方向上海拔500米以下的大氣溫度,得到從距離地面20米起每升高100米處的大氣溫度(單位℃)依次為25,24,23,22,21 ③

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教學(xué)設(shè)計(jì)

    4.That was an experience that frightened everyone. →That was _____________________. 答案:1. taking 2. being discussed 3. in the reading room 4. a frightening experienceStep 6 The meaning and function of V-ing as the predicative動(dòng)詞-ing形式作表語(yǔ),它通常位于系動(dòng)詞后面,用以說明主語(yǔ)“是什么”或“怎么樣”一種表示主語(yǔ)的特質(zhì)、特征和狀態(tài), 其作用相當(dāng)于形容詞; 另一種具體說明主語(yǔ)的內(nèi)容, 即主語(yǔ)等同于表語(yǔ), 兩者可互換。The music they are playing sounds so exciting. 他們演奏的音樂聽起來令人激動(dòng)。The result is disappointing. 結(jié)果令人失望。Our job is playing all kinds of music. 我們的工作就是演奏各種音樂。Seeing is believing. 眼見為實(shí)。Step 7 Practice1. It is ________(amaze) that the boy is able to solve the problem so quickly.2. Buying a car is simply _______(waste) money. 3. Please stop making the noise—it’s getting ________(annoy). 4. complete the passage with the appropriate -ing form.La Tomatina is a festival that takes place in the Spanish town Bunol every August. I think many food festivals are __________ because people are just eating. however, this festival is _________ because people don't actually eat the tomatoes. Instead, they throw them at each other! the number of people ________ part in this tomato fight, can reach up to 20,000, and it is a very __________ fight that lasts for a whole hour. The _______ thing is how clean Bunol is after the tomatoes are washed away after the fight. this is because the juice form tomatoes is really good for making surfaces clean!答案:1. amazing 2. wasting 3. annoying4. boring interesting taking exciting amazing

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學(xué)設(shè)計(jì)

    The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Listening &Speaking&Talking教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Listening &Speaking&Talking教學(xué)設(shè)計(jì)

    The theme of this section is “Talk about festival activities and festival experiences”.Festival and holiday is a relaxing and interesting topic for students. This part talks about the topic from the daily life of students’. In the part A ---Listening and Speaking, there are three conversations among different speakers from three countries(Japan, Rio and China), where the speakers are participating in or going to participate in the festivals and celebrations. So listening for the relationship among them is a fundamental task. Actually, with the globalization and more international communication, it is normal for Chinese or foreigners to witness different festivals and celebrations in or out of China. In the Conversation 1, a foreign reporter is interviewing a Japanese young girl who just had participated in the ceremony of the Coming-of-Age Day on the street and asking her feeling about the ceremony and the afterwards activities. Conversation 2, Chinese girl Li Mei is witnessing the Rio Carnival for the first time, and her friend Carla gives her some advice on the costumes which enables her to match with the carnival to have a good time. Conversation 3, a Chinese guide is showing a group of foreign visitors around the Lantern Festival and introducing the customs of the festival to them. The three conversations have a strong vitality and insert the festival and cultural elements from different countries. So perceiving the festivals and cultures from different countries is the second task. At the same time, the scripts also insert the targeted grammar --- v-ing as attributive and predicative, which students can perceive and experience in a real context and make a road for the further study. That is the third task. In the Part B--- Listening and Talking, the theme is “Talk about festival experience”, which is the common topic in our daily conversations. During the conversation, Song Lin, a Chinese student, asked Canadian friend Max about how to spend Christmas. In the conversation, Song Lin talked about experience and the feelings during the Chinese Spring Festival, during which there are not only some enjoyable things but some unpleasant things. After the listening, perhaps students find there are some similarities between Christmas and the Chinese Spring Festival as there are some differences in the origins and celebrations. For example, people always visit friends and relatives, decorate their houses, have a big dinner together, chat and give presents to each other.

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for writing教學(xué)設(shè)計(jì)二

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for writing教學(xué)設(shè)計(jì)二

    Step 3 Analyzing article structureActivity 31. Teachers raise questions to guide students to analyze the chapter structure of this diary and think about how to describe the festival experience. (1)What should be included in the opening/body/closing paragraph(s)?(2)How did the writer arrange his/her ideas?(3)What kind of interesting details did the writer describe?(4)How did the writer describe his/her feelings/emotions during the event?2. Students read and compare the three sentence patterns in activity 2. Try to rewrite the first paragraph of the diary with these three sentence patterns. After that, students exchange corrections with their partners. Such as:●This was my first time spending three days experiencing the Naadam Festival in China’s Inner Mongolia Autonomous Region and it was an enjoyable and exciting experience. ●I'll never forget my experience at the Naadam Festival because it was my first time to watch the exciting Mongolian games of horse racing, wrestling, and archery so closely. ●I'll always remember my first experience at the Naadam Festival in China’s Inner Mongolia Autonomous Region because it was so amazing to spend three days witnessing a grand Mongolian ceremony. Step 4 Accumulation of statementsActivity 41. Ask the students to read the diary again. Look for sentences that express feelings and emotions, especially those with the -ing form and the past participle. Such as:● …h(huán)orse racing, wrestling, and archery, which are all so exciting to watch. ● some amazing performances● I was surprised to see…● I was a little worried about. . . ● feeling really tiredOther emotional statements:●I absolutely enjoyed the archery, too, but the horse races were my favourite part. ●I'm finally back home now, feeling really tired, but celebrating Naadam with my friend was totally worth it. ●He invited me back for the winter to stay in a traditional Mongolian tent and cat hot pot. I can’t wait!2. In addition to the use of the -ing form and the past participle, the teacher should guide the students in the appreciation of these statements, ask them to memorize them, and encourage them to use them reasonably in writing practice.

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for Writing教學(xué)設(shè)計(jì)一

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for Writing教學(xué)設(shè)計(jì)一

    The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.

  • 人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (1) 教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (1) 教學(xué)設(shè)計(jì)

    新知探究我們知道,等差數(shù)列的特征是“從第2項(xiàng)起,每一項(xiàng)與它的前一項(xiàng)的差都等于同一個(gè)常數(shù)” 。類比等差數(shù)列的研究思路和方法,從運(yùn)算的角度出發(fā),你覺得還有怎樣的數(shù)列是值得研究的?1.兩河流域發(fā)掘的古巴比倫時(shí)期的泥版上記錄了下面的數(shù)列:9,9^2,9^3,…,9^10; ①100,100^2,100^3,…,100^10; ②5,5^2,5^3,…,5^10. ③2.《莊子·天下》中提到:“一尺之錘,日取其半,萬(wàn)世不竭.”如果把“一尺之錘”的長(zhǎng)度看成單位“1”,那么從第1天開始,每天得到的“錘”的長(zhǎng)度依次是1/2,1/4,1/8,1/16,1/32,… ④3.在營(yíng)養(yǎng)和生存空間沒有限制的情況下,某種細(xì)菌每20 min 就通過分裂繁殖一代,那么一個(gè)這種細(xì)菌從第1次分裂開始,各次分裂產(chǎn)生的后代個(gè)數(shù)依次是2,4,8,16,32,64,… ⑤4.某人存入銀行a元,存期為5年,年利率為 r ,那么按照復(fù)利,他5年內(nèi)每年末得到的本利和分別是a(1+r),a〖(1+r)〗^2,a〖(1+r)〗^3,a〖(1+r)〗^4,a〖(1+r)〗^5 ⑥

  • 人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的前n項(xiàng)和公式(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的前n項(xiàng)和公式(1)教學(xué)設(shè)計(jì)

    高斯(Gauss,1777-1855),德國(guó)數(shù)學(xué)家,近代數(shù)學(xué)的奠基者之一. 他在天文學(xué)、大地測(cè)量學(xué)、磁學(xué)、光學(xué)等領(lǐng)域都做出過杰出貢獻(xiàn). 問題1:為什么1+100=2+99=…=50+51呢?這是巧合嗎?試從數(shù)列角度給出解釋.高斯的算法:(1+100)+(2+99)+…+(50+51)= 101×50=5050高斯的算法實(shí)際上解決了求等差數(shù)列:1,2,3,…,n,"… " 前100項(xiàng)的和問題.等差數(shù)列中,下標(biāo)和相等的兩項(xiàng)和相等.設(shè) an=n,則 a1=1,a2=2,a3=3,…如果數(shù)列{an} 是等差數(shù)列,p,q,s,t∈N*,且 p+q=s+t,則 ap+aq=as+at 可得:a_1+a_100=a_2+a_99=?=a_50+a_51問題2: 你能用上述方法計(jì)算1+2+3+… +101嗎?問題3: 你能計(jì)算1+2+3+… +n嗎?需要對(duì)項(xiàng)數(shù)的奇偶進(jìn)行分類討論.當(dāng)n為偶數(shù)時(shí), S_n=(1+n)+[(2+(n-1)]+?+[(n/2+(n/2-1)]=(1+n)+(1+n)…+(1+n)=n/2 (1+n) =(n(1+n))/2當(dāng)n為奇數(shù)數(shù)時(shí), n-1為偶數(shù)

  • 人教版高中數(shù)學(xué)選擇性必修二數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    情景導(dǎo)學(xué)古語(yǔ)云:“勤學(xué)如春起之苗,不見其增,日有所長(zhǎng)”如果對(duì)“春起之苗”每日用精密儀器度量,則每日的高度值按日期排在一起,可組成一個(gè)數(shù)列. 那么什么叫數(shù)列呢?二、問題探究1. 王芳從一歲到17歲,每年生日那天測(cè)量身高,將這些身高數(shù)據(jù)(單位:厘米)依次排成一列數(shù):75,87,96,103,110,116,120,128,138,145,153,158,160,162,163,165,168 ①記王芳第i歲的身高為 h_i ,那么h_1=75 , h_2=87, 〖"…" ,h〗_17=168.我們發(fā)現(xiàn)h_i中的i反映了身高按歲數(shù)從1到17的順序排列時(shí)的確定位置,即h_1=75 是排在第1位的數(shù),h_2=87是排在第2位的數(shù)〖"…" ,h〗_17 =168是排在第17位的數(shù),它們之間不能交換位置,所以①具有確定順序的一列數(shù)。2. 在兩河流域發(fā)掘的一塊泥板(編號(hào)K90,約生產(chǎn)于公元前7世紀(jì))上,有一列依次表示一個(gè)月中從第1天到第15天,每天月亮可見部分的數(shù):5,10,20,40,80,96,112,128,144,160,176,192,208,224,240. ②

  • 人教版高中數(shù)學(xué)選擇性必修二函數(shù)的單調(diào)性(1)  教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二函數(shù)的單調(diào)性(1) 教學(xué)設(shè)計(jì)

    1.判斷正誤(正確的打“√”,錯(cuò)誤的打“×”)(1)函數(shù)f (x)在區(qū)間(a,b)上都有f ′(x)<0,則函數(shù)f (x)在這個(gè)區(qū)間上單調(diào)遞減. ( )(2)函數(shù)在某一點(diǎn)的導(dǎo)數(shù)越大,函數(shù)在該點(diǎn)處的切線越“陡峭”. ( )(3)函數(shù)在某個(gè)區(qū)間上變化越快,函數(shù)在這個(gè)區(qū)間上導(dǎo)數(shù)的絕對(duì)值越大.( )(4)判斷函數(shù)單調(diào)性時(shí),在區(qū)間內(nèi)的個(gè)別點(diǎn)f ′(x)=0,不影響函數(shù)在此區(qū)間的單調(diào)性.( )[解析] (1)√ 函數(shù)f (x)在區(qū)間(a,b)上都有f ′(x)<0,所以函數(shù)f (x)在這個(gè)區(qū)間上單調(diào)遞減,故正確.(2)× 切線的“陡峭”程度與|f ′(x)|的大小有關(guān),故錯(cuò)誤.(3)√ 函數(shù)在某個(gè)區(qū)間上變化的快慢,和函數(shù)導(dǎo)數(shù)的絕對(duì)值大小一致.(4)√ 若f ′(x)≥0(≤0),則函數(shù)f (x)在區(qū)間內(nèi)單調(diào)遞增(減),故f ′(x)=0不影響函數(shù)單調(diào)性.[答案] (1)√ (2)× (3)√ (4)√例1. 利用導(dǎo)數(shù)判斷下列函數(shù)的單調(diào)性:(1)f(x)=x^3+3x; (2) f(x)=sinx-x,x∈(0,π); (3)f(x)=(x-1)/x解: (1) 因?yàn)閒(x)=x^3+3x, 所以f^' (x)=〖3x〗^2+3=3(x^2+1)>0所以f(x)=x^3+3x ,函數(shù)在R上單調(diào)遞增,如圖(1)所示

  • 人教版新課標(biāo)高中物理必修2動(dòng)能和動(dòng)能定理說課稿3篇

    人教版新課標(biāo)高中物理必修2動(dòng)能和動(dòng)能定理說課稿3篇

    2、教學(xué)目標(biāo)根據(jù)我對(duì)教材的理解、結(jié)合學(xué)生的實(shí)際情況、滲透新課程的教學(xué)理念,為提高全體學(xué)生的科學(xué)素養(yǎng),按課程標(biāo)準(zhǔn),以促進(jìn)全體學(xué)生發(fā)展為目的。從知識(shí)與技能、過程與方法,情感態(tài)度與價(jià)值觀三個(gè)方向培養(yǎng)學(xué)生,擬定三個(gè)教學(xué)目標(biāo):知識(shí)與技能:(1)知道什么是動(dòng)能。(2)正確理解和運(yùn)用動(dòng)能公式分析、解答有關(guān)問題。(3)掌握外力對(duì)物體所做的總功的計(jì)算,理解“代數(shù)和”的含義。(4)理解和運(yùn)用動(dòng)能定理。過程與方法:通過演繹推理過程,培養(yǎng)科學(xué)研究興趣,領(lǐng)略物理學(xué)中所蘊(yùn)含的嚴(yán)謹(jǐn)?shù)倪壿嬯P(guān)系。情感、態(tài)度、價(jià)值觀:通過運(yùn)用動(dòng)能定理分析解決問題,感受成功的喜悅,培養(yǎng)學(xué)生對(duì)科學(xué)研究的興趣。3、教學(xué)的重點(diǎn)和難點(diǎn)重點(diǎn):理解動(dòng)能定理、應(yīng)用動(dòng)能定理解決力學(xué)問題。難點(diǎn):應(yīng)用動(dòng)能定理解決多個(gè)過程的力學(xué)問題,以及變力做功或曲線運(yùn)動(dòng)中的動(dòng)能定理運(yùn)用。

  • 人教版新課標(biāo)高中物理必修2萬(wàn)有引力理論的成就說課稿2篇

    人教版新課標(biāo)高中物理必修2萬(wàn)有引力理論的成就說課稿2篇

    2、計(jì)算天體的質(zhì)量首先觀看多媒體展示天體的運(yùn)動(dòng),同時(shí)解釋什么是環(huán)繞天體?什么是中心天體?接著展示相關(guān)問題:①應(yīng)用萬(wàn)有引力定律求解天體質(zhì)量的基本思路是什么?②求解天體質(zhì)量的方程依據(jù)是什么?教師點(diǎn)撥,學(xué)生分組,合作探究,學(xué)生代表發(fā)言設(shè)計(jì)說明通過創(chuàng)設(shè)問題情境,進(jìn)行由淺至深,由易到難的問題式教學(xué),以激發(fā)學(xué)生的積極思維活動(dòng);通過探究讓學(xué)生建立物理模型,分組討論,求解中心天體質(zhì)量的三種表達(dá)式。在進(jìn)行已有知識(shí)的遷移時(shí)重點(diǎn)重復(fù)環(huán)繞和被繞的關(guān)系,使學(xué)生準(zhǔn)確抓住模型中的各個(gè)星體所擔(dān)任的角色。通過小組合作學(xué)習(xí),運(yùn)用類比歸納法得出正確結(jié)論,掌握求解中心天體質(zhì)量的基本思路,以達(dá)到突出教學(xué)重點(diǎn)的目的。3、發(fā)現(xiàn)未知天體通過2個(gè)視頻進(jìn)行了解設(shè)計(jì)說明這部分通過視頻主要激發(fā)學(xué)生相信科學(xué),學(xué)習(xí)科學(xué),讓學(xué)生感知人類探索宇宙的夢(mèng)想,激發(fā)學(xué)生探索科學(xué)奧秘的熱情,培養(yǎng)熱愛科學(xué)的情感,促使學(xué)生樹立獻(xiàn)身科學(xué)的人生價(jià)值觀。

  • 人教版高中歷史必修1新中國(guó)的民主政治建設(shè)說課稿2篇

    人教版高中歷史必修1新中國(guó)的民主政治建設(shè)說課稿2篇

    (一)教材的地位新中國(guó)的成立是20世紀(jì)的一件大事。它結(jié)束了幾千年封建專制統(tǒng)治的歷史,開啟了中華民族發(fā)展的新紀(jì)元。本課側(cè)重這一時(shí)期一個(gè)非常顯著的特征,即制度的更新,它本身具有知識(shí)的延續(xù)性和鋪墊性。新中國(guó)的成立促進(jìn)了社會(huì)經(jīng)濟(jì)的發(fā)展,也為祖國(guó)的統(tǒng)一奠定了重要基礎(chǔ)。(二)教學(xué)目標(biāo)依據(jù)新課程以人為本,促進(jìn)學(xué)生全面發(fā)展的要求,同時(shí),針對(duì)高一年級(jí)學(xué)生具備一定基礎(chǔ)知識(shí)但掌握不牢固,對(duì)歷史興趣濃厚但又自制能力差的特點(diǎn),我對(duì)本課的三維目標(biāo)設(shè)定如下:見多媒體。(三)教學(xué)重點(diǎn)的確定及處理本課的主題是新中國(guó)的民主政治建設(shè),這個(gè)問題的掌握對(duì)以后學(xué)習(xí)中國(guó)民主政治建設(shè)的進(jìn)程有很大幫助,并且學(xué)生能力的提高也有賴于對(duì)它的認(rèn)識(shí),所以確定“人民代表大會(huì)制度的創(chuàng)立”是教學(xué)重點(diǎn)。

  • 人教版高中歷史必修1新中國(guó)初期的外交說課稿2篇

    人教版高中歷史必修1新中國(guó)初期的外交說課稿2篇

    四、教學(xué)過程1.導(dǎo)入新課(2分鐘)出示中非合作論壇暨第3屆部長(zhǎng)級(jí)會(huì)議圖片。用時(shí)事引起學(xué)生注意,設(shè)問,“55年前,亞洲與非洲有哪一次跨越印度洋的握手”,提示答案“萬(wàn)隆亞非會(huì)議”,給出答案導(dǎo)入新課2.外交環(huán)境:學(xué)生閱讀,教師分析。(3分鐘)3.外交方針之一:獨(dú)立自主的和平外交方針(5分鐘) 出示材料:《共同綱領(lǐng)》引文。學(xué)生、閱讀、提煉除新中國(guó)奉行獨(dú)立自主的外交政策。進(jìn)而由學(xué)生分析另起爐灶、打掃干凈屋子再請(qǐng)客和一邊倒。培養(yǎng)學(xué)生分析材料、利用材料的能力過度:新中國(guó)作出一邊倒大的積極主動(dòng)態(tài)勢(shì),社會(huì)主義陣營(yíng)的兄弟們也立刻作出了積極回應(yīng)。1949年10月2日,中蘇建立了外交關(guān)系。4.外交建樹之一:同蘇聯(lián)等17個(gè)國(guó)家建立外交關(guān)系(3分鐘)出示毛澤東訪問蘇聯(lián)等圖片和第一批建交的17個(gè)國(guó)家名字

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