
環(huán)節(jié)四 課堂小結(jié) 鞏固知識(shí)本節(jié)課我采用線索性的板書(shū),整個(gè)知識(shí)結(jié)構(gòu)一目了然,為了充分發(fā)揮學(xué)生在課堂的主體地位,我將課堂小結(jié)交由學(xué)生完成,請(qǐng)學(xué)生根據(jù)課堂學(xué)習(xí)的內(nèi)容,結(jié)合我的板書(shū)設(shè)計(jì)來(lái)進(jìn)行小結(jié),以此來(lái)幫助教師在第一時(shí)間掌握學(xué)生學(xué)習(xí)信息的反饋,同時(shí)培養(yǎng)學(xué)生歸納分析能力、概括能力。環(huán)節(jié)五 情景回歸,情感升華我的實(shí)習(xí)指導(dǎo)老師告訴過(guò)我們,政治這一門學(xué)科要從生活中來(lái)到生活去,所以在課堂的最后布置了課外探究題,以此培養(yǎng)學(xué)生對(duì)理論的實(shí)際運(yùn)用能力,同時(shí)檢驗(yàn)他們對(duì)知識(shí)的真正掌握情況,以此達(dá)到情感的升華,本節(jié)課,我根據(jù)建構(gòu)主義理論,強(qiáng)調(diào)學(xué)生是學(xué)習(xí)的中心,學(xué)生是知識(shí)意義的主動(dòng)建構(gòu)者,是信息加工的主體,要強(qiáng)調(diào)學(xué)生在課堂中的參與性、以及探究性,不僅讓他們懂得知識(shí),更讓他們相信知識(shí),并且將知識(shí)融入到實(shí)踐當(dāng)中去,最終達(dá)到知、情、意、行的統(tǒng)一。

環(huán)節(jié)三情景模擬 情感升華首先:1、本課開(kāi)始觀看的視頻中:選出村長(zhǎng)體現(xiàn)了村民參加選舉的什么態(tài)度?生活中一些人“多我一票不多,少我一票不少,選舉與我無(wú)關(guān)"的想法2、你如何看待上述兩種不同態(tài)度?為什么?發(fā)表你的看法【教師這個(gè)過(guò)程中點(diǎn)撥、引導(dǎo)】如果我們都不珍惜自己的選舉權(quán),那么我們的國(guó)家將會(huì)出現(xiàn)什么后果?3、那么作為將來(lái)選民和被選舉人,你們認(rèn)為應(yīng)具有那些政治素養(yǎng)才能適應(yīng)?學(xué)生結(jié)合教材思考(1)(提示)不行使或不認(rèn)真行使自己的選舉權(quán),意味著我們將不能選舉出能為人民謀福利的當(dāng)家人,意味著我們的國(guó)家將由重蹈舊中國(guó)的覆轍。(2)從態(tài)度上講:公民應(yīng)積極參加選舉,認(rèn)真行使這一權(quán)利,不斷增強(qiáng)公民意識(shí)和主人翁意識(shí),增強(qiáng)公民的參與感和責(zé)任感。(3)從能力上講:要不斷提高公民的政治參與能力(政治素質(zhì)、文化素質(zhì)、議政能力),在周全考慮、理性判斷的基礎(chǔ)上,鄭重地投出自己的一票。

1.必須明確政治生活的作用 (政治生活與經(jīng)濟(jì)生活、文化生活是相輔相成的。政治生活直接影響到人民民主的實(shí)現(xiàn)程度,影響全體人民利益,也會(huì)影響我們的經(jīng)濟(jì)生活、文化生活。)2.需要學(xué)習(xí)政治知識(shí) (5個(gè)有助于)3.需要參加政治實(shí)踐活動(dòng)。 (參加政治實(shí)踐的途徑;參加政治實(shí)踐的意義)(通過(guò)情景問(wèn)題,形成學(xué)生如何參與政治生活的方法;通過(guò)解決問(wèn)題,培養(yǎng)學(xué)生解決問(wèn)題的能力和發(fā)散思維的能力。)環(huán)節(jié)四 課堂小結(jié) 鞏固知識(shí)本節(jié)課我采用線索性的板書(shū),整個(gè)知識(shí)結(jié)構(gòu)一目了然,為了充分發(fā)揮學(xué)生在課堂的主體地位,我將課堂小結(jié)交由學(xué)生完成,請(qǐng)學(xué)生根據(jù)課堂學(xué)習(xí)的內(nèi)容,結(jié)合我的板書(shū)設(shè)計(jì)來(lái)進(jìn)行小結(jié),以此來(lái)幫助教師在第一時(shí)間掌握學(xué)生學(xué)習(xí)信息的反饋,同時(shí)培養(yǎng)學(xué)生歸納分析能力、概括能力。

環(huán)節(jié)四 模擬演練 情感升華我將讓同學(xué)們閱讀課本22頁(yè)的材料,并按照所提供的步驟,組織學(xué)生舉辦一次模擬聽(tīng)證會(huì),將學(xué)生分為四個(gè)小組,分別扮演教育局工作人員、人大代表、學(xué)生家長(zhǎng)、學(xué)校校長(zhǎng)的角色。待學(xué)生們模擬聽(tīng)證會(huì)結(jié)束后,我將采訪學(xué)生,讓他們談?wù)剠⒓油曷?tīng)證會(huì)后的感受,從而利用角色感悟總結(jié)落實(shí)民主決策的重大意義。這樣,學(xué)生們?cè)谀M演練中,感悟公民要通過(guò)各種渠道參與民主決策,是推進(jìn)決策科學(xué)化、民主化的重要環(huán)節(jié)。為學(xué)生將來(lái)參與政治生活積累經(jīng)驗(yàn),增強(qiáng)了學(xué)生的主人翁意識(shí)和社會(huì)責(zé)任感。環(huán)節(jié)五 課堂小結(jié) 課后延伸我將用多媒體展示本節(jié)課的知識(shí)框架,并注重引導(dǎo)學(xué)生將今天所學(xué)新知識(shí)與前面知識(shí)聯(lián)系起來(lái),幫助學(xué)生從宏觀上把握各知識(shí)點(diǎn)之間的關(guān)系,有利于學(xué)生理解記憶。另外,適當(dāng)?shù)恼n堂練習(xí)能檢驗(yàn)學(xué)生掌握知識(shí)的情況,因此,課堂小結(jié)后我將讓學(xué)生做一些典型的練習(xí),加深學(xué)生對(duì)本課知識(shí)的理解,同時(shí)為為下一課的學(xué)習(xí)做準(zhǔn)備。

預(yù)測(cè)回答:成龍?jiān)谟耙暎湫g(shù)方面的價(jià)值,對(duì)于某個(gè)人,某個(gè)集團(tuán)的價(jià)值。知識(shí)引導(dǎo):人的價(jià)值體現(xiàn)在多方面的,可以是物質(zhì)方面,也可以是精神方面,可以是對(duì)某個(gè)人或某個(gè)集團(tuán)的價(jià)值,也可以是對(duì)人類和社會(huì)的價(jià)值。設(shè)置目的:從學(xué)生感興趣的人物入手,分析對(duì)人的價(jià)值的評(píng)價(jià)。讓學(xué)生自己分析總結(jié),體現(xiàn)學(xué)生在新課改下的主體地位。從上述事例中我們可以看出人的價(jià)值是什么?如何評(píng)價(jià)?(學(xué)生活動(dòng))2.人的價(jià)值:在于創(chuàng)造價(jià)值,在于對(duì)社會(huì)的責(zé)任和貢獻(xiàn),即通過(guò)自己的活動(dòng)滿足自己所屬的社會(huì)、他人以及自己的需要。(幻燈片顯示)3.人的價(jià)值評(píng)價(jià):看他的貢獻(xiàn),最根本的是對(duì)社會(huì)發(fā)展和人類進(jìn)步事業(yè)的貢獻(xiàn)。(幻燈片顯示)老師總結(jié):對(duì)社會(huì)的貢獻(xiàn)并不是高高在上,不可觸及。只要是做自己該做的事,從身邊的小事做起,普普通通的勞動(dòng)就是貢獻(xiàn)社會(huì)和他人。學(xué)生歸納:人生價(jià)值原理二、價(jià)值觀的導(dǎo)向作用(板書(shū))1.價(jià)值觀的含義人們?cè)谡J(rèn)識(shí)各種具體事物的價(jià)值的基礎(chǔ)上,形成對(duì)事物價(jià)值的總的看法和根本觀點(diǎn)。

二、學(xué)生情況分析(說(shuō)學(xué)法)1、學(xué)生學(xué)習(xí)基礎(chǔ)分析:學(xué)生通過(guò)對(duì)《生活與哲學(xué)》前面三個(gè)單元的學(xué)習(xí),初步掌握了運(yùn)用唯物論、辯證法、認(rèn)識(shí)論的觀點(diǎn)去認(rèn)識(shí)問(wèn)題、分析問(wèn)題的能力;再通過(guò)對(duì)第十一課的學(xué)習(xí),學(xué)生對(duì)馬克思主義的歷史觀有了初步的理解,初步樹(shù)立了正確的理想信念,這為本課教學(xué)目標(biāo)的落實(shí)奠定了知識(shí)基礎(chǔ)。 2、學(xué)生能力分析 :高二學(xué)生擁有一定生活體驗(yàn),具備一定的信息收集和篩選能力、閱讀能力、語(yǔ)言表達(dá)能力、對(duì)問(wèn)題的一定的探究能力,同伴合作能力和具備初步邏輯思維能力。3、學(xué)生心理分析:在我國(guó)現(xiàn)階段,以為人民服務(wù)為核心的社會(huì)主義道德建設(shè)過(guò)程中涌現(xiàn)了大批的先進(jìn)人物和道德典范,但同時(shí)由于社會(huì)價(jià)值的多元化,個(gè)人主義、享樂(lè)主義、拜金主義等資本主義腐朽思想也同樣在影響著當(dāng)代的中學(xué)生。

2. let the Ss complete the forms paragraph by paragraph. Purpose here is to help Ss to get the habit of reading a passage as a whole, and pay attention to the organization of the text, as a result the Ss will fully understand the whole passage.3. ask Ss to retell the passage with the help of the key words in the form.Since the Ss in the class are in different levels, so I let them to fill in the blank to understand the meaning of the words and phrases better. ( That’s all for the while-reading. Now let’s move to the fifth step.)Step V: Post-reading (10mins) ---DiscussionIn this part students are asked to discuss in groups and list Wang Kun’s and Wang Wei’s attitudes about the trip. After that, Ss are encouraged to express their attitudes with the whole class. Collect their answers and don’t forget to praise them even if their answers may not be perfect.In this activity, discussion provides a vivid and active learning environment for Ss to communicate in English with newly learned language items. (Finally it comes to the homework.)StepⅥ: Homework (1min)1. Ss are required to read the text again after class and figure out the meaning of some complex sentences.2. Do the exercises on P19; This can help Ss to consolidate what they’ve learnt and make preparation for the next lessonPart4. Blackboard design.(說(shuō)板書(shū)設(shè)計(jì))On the top, there is the title of this lesson. On the left, there are main ideas for each paragraph. On the right, there are some new words and expressions.Unit 3 Travel journalJourney down the MekongMain idea of each para.:Para1: deciding to take a great bike trip along the Mekong river.Para2: Different attitudes between Wang kun and Wang wei.

Step 7 Language points 1.Vocabulary (1) go through (2) set down (3) a series of (4) on purpose (5) in order to (6)at dusk (7)entirely (8)face to face 2.Important sentences (1)…I’ve grown so crazy about everything to do with nature. (2)There was a time when … (3)I stayed awake on purpose until … (4)It was the first time … that I’d seen the night … (5)It’s no pleasure looking through … Purpose: 1.Master the required vocabulary and sentence structures. 2.Use them freely. Step 8 Consolidation 1.Find out the topic sentences 2.Retell the text according to the topic sentences Purpose: I want to know if my students understand the text. Step 9 Discussion Imagine you have to go into hiding like Anne and her family, what would you miss most? Giveyour reasons. Purpose: Train Ss’ oral English ability. Step 10 Homework Write an article on Friends. Purpose: 1. Improve the Ss’ writing ability. 2 Train the Ss’ ability of self—teaching and looking up information by themselves. Part 5 Blackboard design(說(shuō)板書(shū)設(shè)計(jì))Unit 1 Friendship Reading Anne’s Best Friend 1.Main idea of each paragraph: Para. 1 Anne made her diary her best friend. Para .2 Anne wrote her feelings in her diary. Para .3 Anne missed nature. Para.4 Anne saw the night face to face Para.5 Anne wanted to experience nature outdoors. 2.Listening: Exx.1 P3 3.Discussion: Exx.3 P3 Purpose: 1.Make Ss familiar with the passage 2.Make the design inductive, instructive and artistic.

(3)v. 給:提出;展現(xiàn),顯現(xiàn)present sb. with sth. ; present sth. to sb. 把. . 交給;頒發(fā);授予present sth. (for sth. )/present sth. to sb. e. g. Om his birthday, his friends presented him a collection of stamps. 在他生日時(shí),他的朋友們送給他一套郵票作為禮物。The sword was presented by the family to the museum. 這家人把寶劍捐贈(zèng)給了博物館。The committee will present the final report to Parliament in June. 委員會(huì)將在六月向議會(huì)提交最后的報(bào)告。You need to present yourself better. 你需要更善于展現(xiàn)自己。It is essential that we present a united front. 至關(guān)重要的是我們要表現(xiàn)得更加團(tuán)結(jié)。Step 4 ConsolidationT:Now that we have got a general idea of these words and phrases. Lets make up some sentences using them to master them. Suggested sentences:1. Your duties include typing letters and answering the telephone. 2. It is one of the greatest roles that she has played. 3. A large number of people have applied for the job. 4. The number of the panda is declining. 5. I'11 go there, even if I have to walk. 6. He came up to me to ask for a light. 7. The novel is about a family who can't communicate with each other. 8. He based his plan on interests of most people. 9. Why doesn't he make use of his singing talent?Step 5 Summary and homeworkT:Today we dealt with several new words and phrases. After class I hope that youcan read them again and again to keep them in mind. That's all for today. You aredismissed.

In this step, give students a few minutes to read the passage . While they are reading, I will write some key words of the text on the blackboard. Then ask students to retell the passage according to the key words.By retelling, students can improve their ability of language organization and have an overall understanding of the article.Step 4 Group discussionIn this step, students will be divided into groups of 4 to discussion the following question: What qualities make a great person?After their discussion, invite a few groups to make a report to the class.This group discussion can practice students’ oral English and cultivate their abilities of cooperation and communication.Step 5. HomeworkLet students write a short passage to introduce a great person he or she admires.The homework can consolidate the knowledge the students have learned and cultivate their writing ability. Part 6 Blackboard Design(板書(shū)設(shè)計(jì))That’s all my teaching procedures. Finally, I’d like to say sth about part 6 blackboard design. On the top is the title. On the left, there will be some new words and expressions. In the middle of the blackboard, I will write some useful sentence structures so that the students can know clearly what they’ve learned and then try to master the knowledge.OK. That’s all for my presentation. Thank you for your attention.

Ⅲ. Analysis of the teaching material:The topic of this unit is cultural relics. Students are quite interested in topics about different cultures around the world. This is the second period of the whole unit. As a reading class, the passage mainly talks about the history of the amber room (how it was made, sent as a gift, lost and rebuilt).According to the new national curriculum, when teaching reading, much emphasis should be put on training the students’ reading skills.Ⅳ. Teaching objectives1. Language objectives:1) Students are required to master the key words and phrases occurred in the passage (e.g. amazing, decorate, belong, in return, less than etc.)2) Students are required to learn the attributive clause and acquire the sentence pattern.2. 1) Students are required to describe a certain thing by using the new sentence patterns.2) Students are required to master two kinds of reading skills—skimming and scanning, and learn to use them in their daily reading.3. 1) Students are required to know the history of the amber room.2) Students are required to appreciate cultural relics and understand the importance of protecting them.Ⅴ. Teaching important and difficult points1) the new words, phrases, and sentence pattern in the course of reading.2) Teaching difficult point: Help the students master two kinds of reading skills—skimmingand scanning and learn to apply them in daily use.Ⅵ. Teaching methods:Task-based method & Top-down model Ⅶ. Teaching aids: PPT, pictures, blackboard Ⅷ. Teaching procedure:

In this class, I have 3 teaching aims, that is, knowledge aims, ability aims and emotion aims.1) Knowledge-Teach students new words and expressions, such as temporary, bleed,sprain choke, first aid, fall ill and so on.-Enable students to have a better understanding for some basic knowledge of first aid.2) Ability-Train students’ speaking, reading and writing abilities by different teaching activities, such as skimming, comprehending, team work, role play, retelling and writing.-Develop students’ reading strategy on how to move general idea to specific information.3) Emotion-Promote students’ awareness of giving first aid.- Cultivate students’ creativities.Then let’s come to my teaching methods and activities.III. Teaching methods and activities:To achieve different teaching aims, various kinds of teaching methods and activities will be adopted throughout this period, such as TBL (task-based learning), skimming, team work, brainstorm and others, which can offer students opportunities to fulfill tasks in which they can use language to achieve a specific outcome.IV. Teaching aids:Computer and blackboardV. Teaching important points:1) Make students have a clear mind for the structure of the text.2) Help students understand the theme of the text.VI. Teaching difficulties:1) So many new words may affect students’ understanding.2) How to get students to know about the functions of the skin and thecauses, characteristics and treatments for different degree burns,and the knowledge about giving first aid. VII. Blackboard design:

通過(guò)寫(xiě)文章梗概,培養(yǎng)學(xué)生綜合運(yùn)用語(yǔ)言的能力,學(xué)習(xí)用恰當(dāng)?shù)挠⒄Z(yǔ)描述科學(xué)家的故事。這是本課的教學(xué)難點(diǎn)。教師可以使用完形填空的方式來(lái)幫助學(xué)生整理語(yǔ)篇,從而來(lái)降低難度。本課的教學(xué)重點(diǎn)的突破方法是:在閱讀前,讓學(xué)生初步了解得出科學(xué)觀點(diǎn)所需要的基本程序,從而輕松而自然地導(dǎo)入文章的閱讀;在閱讀過(guò)程中,由易到難設(shè)計(jì)快速閱讀和精讀的問(wèn)題,層層推進(jìn)各種閱讀活動(dòng),讓學(xué)生對(duì)閱讀內(nèi)容從整體感知到細(xì)節(jié)理解,最后深層讀懂整篇文章,同時(shí)加強(qiáng)閱讀策略的指導(dǎo),讓每個(gè)學(xué)生都主動(dòng)參與課堂教學(xué)活動(dòng),最終達(dá)到提高閱讀能力的目的。Step 4 Post-readingGroup Activities四人小組共同合作,在老師的適當(dāng)指導(dǎo)下,就以下2個(gè)問(wèn)題展開(kāi)討論,讓學(xué)生就所知、所學(xué)、所感和所想融入話題,然后抽若干同學(xué)代表作小組發(fā)言。1. What do you think about John Snow, and what should we learn from him?2. Cholera was 19th century disease, which two diseases are similar to cholera today? Why?

Good afternoon, everyone. It’s my great pleasure to be here sharing my lesson with you. The content of my lesson is Senior English for China Book5 Unit 3 Life in the Future. I’ll be ready to begin this lesson from six parts: Analysis of the teaching material, Analysis of the students, Teaching aims and important and difficult points, Teaching methods and aids, Teaching procedures, and Blackboard design. First, let me talk about the teaching material.Part 1 Analysis of the Teaching Material:This unit is about what human beings’ life will be like in about one thousand years. By studying of this unit, we’ll Enable the students to know the changes in humans’ life and some new inventions bringing about the change and develop the interest in science. This lesson plays an important part in the English teaching in this unit. This is an important lesson in Book Five. From this lesson, it starts asking the Ss to grasp contents of each passage. Therefore, this lesson is in the important position of the teaching material. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.Part 2 Analysis of the SsAs Senior2 Ss, they are at different levels of English fluency, some of them have lost interest in English. So during the lesson, I arrange a variety of activities to let all of them join in to attract their interest and let them be confident and taste the joy of success.

今天我們來(lái)介紹一下必修五第四單元的授課方式。這個(gè)單元的題目是Making the news。應(yīng)該是學(xué)生比較感興趣的話題,學(xué)生往往對(duì)新聞工作充滿好奇,所以我們可以利用這個(gè)機(jī)會(huì)多設(shè)計(jì)一些師生互動(dòng)和學(xué)生互動(dòng),來(lái)激發(fā)起學(xué)習(xí)的積極性,提高學(xué)習(xí)效率。同時(shí)我們可以利用這個(gè)單元不僅幫助學(xué)生掌握語(yǔ)言知識(shí),培養(yǎng)語(yǔ)言能力,同時(shí)讓其了解新聞工作的重要性,培養(yǎng)起社會(huì)智能感。這個(gè)單元分為六個(gè)課時(shí),它的教學(xué)目標(biāo)是這樣的:語(yǔ)言目標(biāo)是掌握詞匯表中的常用單詞和短語(yǔ),掌握倒裝句的一些基本用法。 技能目標(biāo)是能初步掌握約會(huì)的基本句型并在真實(shí)的場(chǎng)景下正確運(yùn)用。新聞報(bào)道類文章的寫(xiě)作技能。采訪的基本規(guī)范和溝通技能。情感目標(biāo)是對(duì)新聞報(bào)道的客觀性和真實(shí)性有更好的理解。對(duì)新聞?dòng)浾叩穆殬I(yè)有更深入的了解,并能體會(huì)其工作的重要性。下面我們來(lái)介紹一下第一課時(shí)的授課方式,第一課的教學(xué)目標(biāo)是這樣的第一課時(shí)的教學(xué)目標(biāo)語(yǔ)言目標(biāo):單詞:Occupation, journalist, editor, photographer, curious, personality, enthusiasm

Teaching Aims:Knowledge 1. Get the students to learn the useful new words and expressions in this section. Aims:2. Let the students learn about how the UK was formed and the four groups of invaders.1. Develop students’ reading ability and let them learn different Ability reading skills. Aims:2. Enable students to learn to talk about the United Kingdom and the Union Jack Emotional 1. Let students know more about the UK2. Develop students’ sense of cooperative learning Aims:Teaching Important Points:1. Let the students learn about the countries of the United Kingdom and the Union Jack2. Get the students to read the passage and know about how the UK was formed and the four groups of invaders.3. Have the students learn different reading skills.Teaching Difficult Ponts:1. Develop students’ reading ability.2. Enable students to talk about the United Kingdom and the Union Jack.3. Let students learn how the UK was formed geographically and historically.Teaching Methods:Showing pictures, asking, exercising, listening, reading etc.Teaching Aids:A computer,a projector and a blackboard.Teaching Procedures: 1) Show a map of the world, ask students the following questions:Where is the UK?What’s the full name of the UK?2) Ask the students work in pairs to do the quiz on Page 9.Do you want to test how many things you know about the United Kingdom? Let’s have a small test.Using the map on P9, students answer the following questions:?How many countries does the UK consist of? What are they??England is divided into three main areas. Do you know what they are? 1) Scanning (10Minutes )Let the students hold the questions asked in pre-reading and read the passagequickly and then let them do the following exercise.Join lines to the right answer.

各小組派代表匯報(bào)。4、教師提出問(wèn)題組織學(xué)生討論:⑴要想了解更多的綠色食品,了解綠色食品的銷售情況,我們應(yīng)該怎么做?⑵要想了解廣大消費(fèi)者對(duì)綠色食品的態(tài)度,食用綠色食品的意義,是否懂得辨認(rèn)綠色食品,以及什么樣的人群對(duì)此知識(shí)最缺乏等,我們應(yīng)該怎么做?組織學(xué)生匯報(bào)交流。5、做個(gè)“綠色食品”廣告設(shè)計(jì)師。為你喜歡的綠色食品設(shè)計(jì)廣告語(yǔ),每組推薦一個(gè)。6、讓學(xué)生了解綠色食品認(rèn)證程序。7、綠色食品打“假”隊(duì)員在行動(dòng)。8、向?qū)W生介紹生態(tài)綠色食品基地。三、活動(dòng)總結(jié):通過(guò)研究、探討,了解學(xué)生對(duì)綠色食品的態(tài)度。提問(wèn):民以食為天,吃,是一個(gè)大問(wèn)題,如果你的爸爸媽媽讓你到超市買牛奶、方便面等,你會(huì)選擇什么樣的食品?為什么?希望通過(guò)今天的學(xué)習(xí),同學(xué)們能夠做到綠色消費(fèi),也希望你們向自己的家人、向周圍的了解學(xué)生對(duì)“無(wú)公害食品”、“有機(jī)食品”與“綠色食品”的認(rèn)識(shí)。

本節(jié)課是人教社物理必修1第三章第三節(jié)的內(nèi)容,編排在彈力之后。該節(jié)知識(shí)既是力學(xué)的基礎(chǔ),也是組成整個(gè)高中物理知識(shí)的一塊“基石”,所以這節(jié)內(nèi)容的教學(xué)如何引領(lǐng)學(xué)生自主積極地探究摩擦力產(chǎn)生的條件和影響因素,體驗(yàn)?zāi)Σ亮μ攸c(diǎn)規(guī)律的發(fā)生過(guò)程是本節(jié)課的重點(diǎn),應(yīng)高度重視本節(jié)教學(xué)過(guò)程;由于摩擦力問(wèn)題的復(fù)雜性,且在具體問(wèn)題中又表現(xiàn)出“動(dòng)中有靜,靜中有動(dòng)”,尤其靜摩擦在許多情形下似乎又是“若有若無(wú),方向不定”,因此,對(duì)于初學(xué)者也是有一定難度的。也正是由于教材內(nèi)容的上述特點(diǎn),本節(jié)課又易于激起學(xué)生的求知欲,易于培養(yǎng)學(xué)生的辯證觀點(diǎn),易于錘煉學(xué)生的物理素質(zhì)。要充分用好該節(jié)教材內(nèi)容,深入挖掘知識(shí)間的有機(jī)聯(lián)系,對(duì)學(xué)生開(kāi)展針對(duì)性的思維訓(xùn)練,進(jìn)而提高學(xué)生應(yīng)用物理知識(shí)解決實(shí)際問(wèn)題的能力和創(chuàng)新思維能力。高中物理《課標(biāo)》對(duì)該知識(shí)點(diǎn)的要求是,“通過(guò)實(shí)驗(yàn)認(rèn)識(shí)滑動(dòng)摩擦、靜摩擦的規(guī)律,能用動(dòng)摩擦因數(shù)計(jì)算摩擦力”。其中,對(duì)靜摩擦力規(guī)律的認(rèn)識(shí)應(yīng)該包括最大靜摩擦力。

探究一:高中階段功的含義是什么?投影:初中九年級(jí)《物理》105頁(yè)學(xué)生思考:①圖中物體的勢(shì)能、動(dòng)能分別如何變化?②物體能量的變化和做功是否存在關(guān)系?學(xué)生:分組討論,得出結(jié)論:如果物體的能量發(fā)生變化時(shí),說(shuō)明有力對(duì)物體做了功。教師:進(jìn)行點(diǎn)評(píng)和小結(jié)(設(shè)計(jì)意圖:對(duì)初中知識(shí)深化理論認(rèn)識(shí),并為以后功能關(guān)系的教學(xué)作準(zhǔn)備)探究二:力對(duì)物體做功的兩個(gè)要素是什么?情景再現(xiàn):找體重相對(duì)懸殊的兩位同學(xué),①A同學(xué)試圖抱起B(yǎng)同學(xué),但沒(méi)成功。②B同學(xué)抱起A同學(xué)在教室內(nèi)勻速走動(dòng)。學(xué)生思考:在①中,A是否對(duì)B做功?在②中,B是否對(duì)A做功?學(xué)生:分析得出做功的兩要素:物體受到力的作用,并且在力的方向上發(fā)生位移.教師:讓學(xué)生分別例舉生活中力對(duì)物體做功和不做功的例子,(設(shè)計(jì)意圖:讓學(xué)生親身參與課堂實(shí)驗(yàn),烘托課堂氣氛,相互協(xié)作增進(jìn)同學(xué)情誼)探究三:如果物體的位移不再力的方向上,那么力是否還對(duì)物體做功?

f.有絲分裂的意義(討論分析教學(xué)),首先引導(dǎo)學(xué)生結(jié)合所學(xué)知識(shí)討論有絲分裂的的作用,最后有教師歸納總結(jié),并要求學(xué)生在理解的基礎(chǔ)上記憶。g.無(wú)絲分裂(圖形直觀教學(xué)、簡(jiǎn)介),本部分內(nèi)容不是教學(xué)的重點(diǎn),內(nèi)容也相對(duì)簡(jiǎn)單,所以我的教學(xué)方法是直接給學(xué)生展示掛圖,再進(jìn)行簡(jiǎn)短介紹,讓學(xué)生了解即可。h.引出減數(shù)分裂的概念,為第五章學(xué)習(xí)打下基礎(chǔ)。小結(jié):新課講完以后由教師對(duì)本節(jié)內(nèi)容進(jìn)行總結(jié)鞏固和反饋:進(jìn)行一些課堂練習(xí)達(dá)到鞏固和反饋的作用。最后布置作業(yè),各種難度的作業(yè)題目均設(shè)置一些,其中簡(jiǎn)單題比重大,難題要求學(xué)生選作,這樣提高學(xué)生學(xué)習(xí)積極性。2教學(xué)媒體程序設(shè)計(jì): 細(xì)胞周期的概念(多媒體課件演示周期動(dòng)畫(huà))植物細(xì)胞有絲分裂(多媒體課件演示分裂各期動(dòng)畫(huà))動(dòng)植物細(xì)胞有絲分裂異同點(diǎn)(多媒體課件演示分裂各期動(dòng)畫(huà))有絲分裂過(guò)程中DNA和染色體數(shù)量的變化規(guī)律(掛圖演示,包括表格和函數(shù)圖象)
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