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人教版高中英語必修2The Olympic Games說課稿2篇
Purpose of my design:To ask the students to do these two tasks will make the Ss predict the story of this passage. As a result, it will deepen Ss’ memory of this story because they will have their own understanding of this story.Step 3. While-readingTask 1. (Individual work _____min)Skimming: ask students to skim the text and the main ideas of each paragraph in this passage. Please read it quickly and then match the sentences with the letters.Task 2. (Individual work _____min)Scanning: read the text quickly and decide the whether the following statements are true or false and give reasons.Task 3. (Pair work _____min)Listen to the tape and fill in the banks. Then read the paragraph with expression to your partner.Task4 (individual work min)Listen to the tape again and write down the main idea in one sentence.Purpose of my design: Enable students to understand the given material better by using different reading skills. And proper competition can arouse the Ss’ interest in English learning. “Task-based” teaching method is used here todevelop the Ss’ ability of communication and also their ability of co-operation will be well trainedStep 4. Post-readingTask 1. (Individual work, pair work, group work, class work; _____min)Discussion (group of 4):1. If you were Hippomenes, would you run against Atlanta?2. Do you think Hippomenes deserved to win the race? Why or why not?Step 5. HomeworkPlease read the story again carefully after class and imagine: What will happen during the race between Hippomenes and Atlanta? Who do you think will win the race? Do you think Atlanta would marry Hippomenes? Write an end for the story with thses questions.Purpose of my design: Homework is so important and necessary for to master the knowledge they learned after class. It will check whether the Ss achieve the teaching aims.Part 5 Blackboard design
人教版高中英語必修3Astronomy the science of the stars說課稿3篇
Step 2 Pre-listeningAfter students finish their discussion, I will show a picture of Newton and ask them: Who is him? What is he famous for? Could you find out some words to describe him? Maybe students will answer that he is genius for his finding of theGravitation, making a great contribution to the progress of human being. At that time I will show another two pictures of Einstein and Hawking, letting students guess who they are and write down their idea about the Gravitation. For I have arranged them to search more information about the gravity before this class, Students have beenfamiliar with the topic and will not be afraid about this abstract conception, which is helpful for their listening.Step 3 While-listeningIn this step, students will be required to listen the material for three times. The first and listening is extensive listening and the second and third listening is intensive listening. In the first time, They are required to listen a material including Part 1 and Part 2 and choose the best summary of the listening text. After they choose the right answer, They also need work in group to explain what is wrong with the others. Then I will make a conclusion that we should pay attention to the first paragraph and last paragraph and some keys to get the main idea. By doing this, their capacity of generalization will have a great improvement.Before the second listening, I will ask students to scan the blank on the power point quickly and ask them to note down some key words .Then ask them to listen to the Part 1again and fill the first column of the chart. Maybe some students just show the ideas of these three scientists an still can’t catch their development of gravity. Therefore, I will ask them to listen to Part 2 again and fill in the rest. After finish the listening, I will give them ten minutes to discuss with their partner. I will also guidethem to improve their answers when they discuss with others.
人教版高中英語必修2Wildlife Protection說課稿3篇
When it comes to the students’ studying methods, I'd like to introduce my Ss first. The Ss have a good command of basic language points. They’re interested in learning English, and they take an active part in English class, so they will have fun in autonomous, cooperative and inquiry learning. I will just serve as a guide, showing them the way to explore how to make more progress in their English learning.Now it’s time for the most important stage of this lesson. My teaching procedures are arranged as follows:Step1.Leading-in (3 minute)Play a video of a wide variety of wildlife to introduce my topic. Step2. Speaking (12 minutes)We will use our textbook Page25. Let the Ss fast read the short paragraph to warm up. Ask them to talk about the report on some endangered wildlife in China with the dialogue patterns on the screen. Lastly, I will invite some groups to demonstrate their dialogues about saving wildlife in China.Step3.English play (3 minutes)Watch another video in praise of their excellent performance just now. It’s about Jack Chen’s（成龍）and Yang Ziqiong’s wildlife protection.Step4. Listening (twice 13 minutes)This time, I’ll ask the Ss to fill in the blanks of the monologue of the 2 movie stars above. Step5.Discussion (3 minutes)Which would you like to choose to wear, clothes made of cotton, artificial leather or animal skins? Why ?Step6. Summary (3 minutes)1. If there were no wildlife, there wouldn’t exist human beings. If the buying stops, the killing can, too.2. Animals are our friends. To love animals is to love ourselves. Stop hunting, killing and destroying wildlife.3. Let’s live in harmony with all the living things in the world. Step7. Music appreciation (3 minutes)Let the Ss appreciate the song Earth Song by Michael Jackson. Last but not the least, I will show you my blackboard design.
人教版高中英語必修3Festivals around the World說課稿3篇
Teaching plan for Unit 1 book3Good morning, teachers. It’s my great pleasure to be here because I can share my lesson with you and I can learn a lot from it. I’ll begin my lesson from the following four parts， the teaching material, the teaching methods, the studying methods and the teaching procedure.Firstly, let me talk about the teaching material. The content of my lesson is the reading passage festivals and celebrations of Unit 1 Festivals around the world. This passage is about festivals and celebrations. By studying this passage, we’ll enable the students to know that festivals exit everywhere, and many of festivals in different countries celebrate similar ideas. As we all know, the reading passage is the center of each unit. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.After studying the teaching material, I think the teaching aims are as the followings:1. Knowledge aims:(1) The Ss can master the usage of the important words andexpressions.(2)The Ss can use the __________________ (grammar) in the proper situation.Make students know about the festivals all over the world and the detail of the festivals, such as origin, content, and the date of the holiday festivals.2. Ability aims:(1) Students can talk about festivals and celebrations in English(2) To improve the student’s reading ability, especially their skimming and scanning ability.3. Emotion aims:Make the Ss know about the foreign festivals, and respect other countries’ custom.Next, let’s come to the important points and the difficult points.The important point is how to make the Ss understand the text better and the difficult point is how can they talk about it. secondly， Teaching Methods:1. task-based Language Teaching2. Computer assisted language teaching.3. question-and–answer methodThirdly， Studying Methods:
人教版高中英語必修3The million pound bank note說課稿3篇
在接下來的細讀環(huán)節(jié)，我套用了高考對閱讀理解的考查方式設置了5個問題，分別為三個推理判斷題，一個細節(jié)題和一個主旨大意題。學生需要對文章的內容進行分析、歸納、推理、猜測等高級思維活動才能做出正確的回答?！驹O計意圖】這一過程是對學生進行細讀的訓練，培養(yǎng)學生獲取特定信息和挖掘文章深層次信息的能力。第三環(huán)節(jié):Intensive-reading (精讀) 15′第三個環(huán)節(jié)精讀，既是最重要的環(huán)節(jié)，也是突破本課重難點的關鍵。首先，讓學生思考劇本中人物看到百萬英鎊前后的態(tài)度發(fā)生了怎樣的變化。其次，讓學生仔細閱讀文章，找出可以表現(xiàn)人物態(tài)度變化的具體的語言和動作。最后，讓學生總結人物的態(tài)度發(fā)生變化的根本原因是什么，從而引出Money Talks, 供學生思考。【設計意圖】通過一系列的活動培養(yǎng)學生學習從人物的語言和動作探究人物的心理，使學生進一步體會戲劇語言的魅力，從而對文章背后所反映的社會問題進行思考，也為下一步的討論環(huán)節(jié)做好鋪墊。
人教版高中英語必修5First aid說課稿6篇
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:
人教版高中英語必修5Life in the Future說課稿5篇
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.
人教版高中地理必修2綠色產(chǎn)品知多少說課稿
各小組派代表匯報。4、教師提出問題組織學生討論：⑴要想了解更多的綠色食品，了解綠色食品的銷售情況，我們應該怎么做？⑵要想了解廣大消費者對綠色食品的態(tài)度，食用綠色食品的意義，是否懂得辨認綠色食品，以及什么樣的人群對此知識最缺乏等，我們應該怎么做？組織學生匯報交流。5、做個“綠色食品”廣告設計師。為你喜歡的綠色食品設計廣告語，每組推薦一個。6、讓學生了解綠色食品認證程序。7、綠色食品打“假”隊員在行動。8、向學生介紹生態(tài)綠色食品基地。三、活動總結：通過研究、探討，了解學生對綠色食品的態(tài)度。提問：民以食為天，吃，是一個大問題，如果你的爸爸媽媽讓你到超市買牛奶、方便面等，你會選擇什么樣的食品？為什么？希望通過今天的學習，同學們能夠做到綠色消費，也希望你們向自己的家人、向周圍的了解學生對“無公害食品”、“有機食品”與“綠色食品”的認識。
人教版高中地理必修2煤城焦作出路何在說課稿
分析過焦作市的地理概況和產(chǎn)業(yè)優(yōu)勢后，就需要針對由于資源枯竭所帶來的問題提出合理化的建議。既然是談經(jīng)濟轉型，就應該將話題的范圍明確在這一領域內。通過材料3的相關內容，我們了解到焦作市需要在產(chǎn)業(yè)結構調整、培育新的優(yōu)勢產(chǎn)業(yè)、增強綜合競爭力等三個整改方針上下功夫。因而引導學生針對優(yōu)勢與不足提出建議，以三個整改方針為基準，衡量建議的可行性是鍛煉學生解決此類問題的有效途徑。在此我將教會學生的是解決問題方法而非案例的內容，正所謂“授之以魚，不如授之以漁”。接下來針對學生的建議和教材資料分析所羅列的10點整改思路，由學生自由發(fā)言提出看法，通過教師的指導和學生的討論，進而確定經(jīng)濟轉型建議的具體方案。最后注意將建議與產(chǎn)業(yè)優(yōu)勢相對照，看建議是否都是圍繞著產(chǎn)業(yè)優(yōu)勢而提出的，這樣做會加深學生的印象，通過建議和優(yōu)勢的對應關系，將不難找出此類問題的解題思路。
人教版高中語文必修2《蘭亭集序》說課稿3篇
（二）分析課文，理清思路第1、2段為第一部分，主要是敘事、寫景，先敘述集會的時間、地點，然后渲染出蘭亭優(yōu)美的自然環(huán)境。在這里足以“游目騁懷”“極視聽之娛”，可以自由地觀察、思考，滿足人們目視耳聞的需求。這里正是與會“暢敘幽情”、盡興盡歡的絕好處所。這些描寫都富有詩情畫意，作者的情感是輕松愉快的。第3、4段為第二部分，主要是抒情、議論，作者由美景妙時引發(fā)出樂與憂、生與死的感慨。他認為人生的快樂是有極限的，待快樂得到滿足時，就會感覺興味索然。往事轉眼間便成為歷史，人到了生命的盡頭就會死亡。作者由“一死生為虛誕，齊彭殤為妄作”的認識，產(chǎn)生了一種珍惜時間、眷戀生活、熱愛文明的思考。雖然文中的壽夭、生死不能自由決定，從而有些傷感，但作者仍然認識到盛衰、生死是必然的。人生無常，時不我待，故著文留傳后世，以承襲前人，啟示來者。
中班綜合《吃“傘”啦》說課稿
《吃“傘”啦！》出自南京師范大學出版的《幼兒園活動整合課程指導》中班上冊的“傘的世界”單元。在這個活動之前，小朋友已經(jīng)通過圍繞“傘”來展開的一系列活動，對傘的結構、外形特征等有了一定的認識和了解。在這個基礎上，進一步深化，讓幼兒認識像傘一樣的植物，其中最有代表性的當然要數(shù)“蘑菇”了。小朋友平時在家里或在幼兒園里經(jīng)常都會吃到蘑菇，它的外形特殊，像一把小小的可愛的傘，小朋友看見蘑菇都會忍不住拿來玩一玩，摸一摸，甚至聞一聞。同時，蘑菇的味道鮮美，營養(yǎng)價值極高，可是由于它有一種特殊的味道，許多幼兒都不喜歡吃它，一種極有利于幼兒生長發(fā)育的優(yōu)秀食物就這樣被幼兒拒之嘴外，真的是很可惜！為了讓幼兒更好的了解這些可愛的“小傘”，并愿意與它成為“好朋友”，從而使幼兒能更加健康的成長，特此設計了《吃“傘”啦！》這一個綜合活動。
人教版高中地理必修2第六章第二節(jié)中國的可持續(xù)發(fā)展實踐說課稿
1．導入新課：用觸目精心的一首MTV《EARTHSONG》導入新課，引出人類已經(jīng)面臨嚴峻的人口、資源與環(huán)境的危機。而中國是世界上人口最龐大的國家，人口、資源與環(huán)境問題更加嚴重。既然我們知道了可持續(xù)發(fā)展的概況，了解了它的發(fā)展過程，從上節(jié)課內容的分析中，也理解了作為人類的發(fā)展，可持續(xù)是唯一的選擇，也是我們所追求的目標，那么，具體到我們國家、我們周圍的生產(chǎn)、生活情況又該如何呢?2.新課講授：首先，通過三則補充材料的案例和課本上的內容分別說明龐大的人口壓力，資源短缺和不合理利用，深刻的環(huán)境危機方面的問題，得出走可持續(xù)發(fā)展之路是我國的必然的唯一的選擇。接著通過《中國21世紀議程》——中國21世紀人口環(huán)境與發(fā)展的白皮書的過渡引出實施可持續(xù)發(fā)展的途徑。在這部分內容的講解上，主要通過其中一種主要途徑-循環(huán)經(jīng)濟的講解，特別是對清潔生產(chǎn)和生態(tài)農(nóng)業(yè)的具體分析，總結出中國走可持續(xù)發(fā)展之路事在必行，行必有果。再通過完成課本上最后一個活動題對本節(jié)內容進行深化。
人教版高中地理必修1第一章第二節(jié)太陽對地球的影響說課稿
（一）教材的地位與作用本節(jié)主要闡述太陽輻射和太陽活動對地球的影響。太陽輻射對地球的影響主要是從太陽為地球提供能量這個方面來闡述，通過圖片的形式從四個方面來分析。不應讓學生記憶這四個方面，需要歸納為：（1）直接或間接（化石燃料）為地球提供大部分能量。（2）維持四大圈層物質循環(huán)和能量交換，決定地理環(huán)境的基本特征。（二）教學目標(1)知識與技能目標：1.闡述太陽對地球的影響。太陽對地球的影響，包括太陽輻射對地球的影響和太陽活動對地球的影響。2.太陽輻射的概念、來源、波長等只作一般了解；太陽活動對地球影像是通過作用氣候、地球電離層和磁場而發(fā)生的，主要包括磁暴、無線電短波通訊被干擾、極光和氣候異常等。3.教材涉及太陽活動的概念、標志和周期需要明確，而太陽大氣分層及對應太陽活動現(xiàn)象只作一般了解。
人教版高中地理必修3地理環(huán)境對區(qū)域發(fā)展的影響說課稿
本節(jié)課我分成兩個課時A首先我會在在ppt上放幾張關于區(qū)域的圖，讓學生思考什么是區(qū)域，區(qū)域有什么特征。其次我會在在書上畫出區(qū)域的定義，在給與解釋說明，再在書上畫出區(qū)域的四個特征，讓同學小組討論哪些區(qū)域是有界的，哪些區(qū)域是無界的，從而加深同學們對區(qū)域的理解。B在ppt上放出長江三角洲和松嫩平原，不同風土人情由此導入下一個知識點：不同區(qū)域由于地理環(huán)境的差異，人們的生產(chǎn)特點有許多的不同，發(fā)展方式也存在差異，然后讓學生思考長江三角洲和松嫩平原有什么差異，各自給區(qū)域環(huán)境發(fā)展帶來什么影響，啟發(fā)學生從氣候等方向思考，然后用表格的方式給不同因素歸類(歸位自然和社會經(jīng)濟兩大類)再啟發(fā)同學們從兩大類分別討論對農(nóng)業(yè)與工業(yè)發(fā)展的影響，最后再用表格的形式分類表達C然后給同學們幾個問題，鞏固同學課堂所學，最后留下一個問題課后解決：除了今天講的因素外還有哪些因素對區(qū)域發(fā)展產(chǎn)生影響?
人教版高中生物必修3第三章第三節(jié)《其他植物激素》說課稿
二、應用生長調節(jié)劑的注意事項1、效果不穩(wěn)定。2、使用時期。3、使用濃度和方法。4、使用生長調節(jié)劑僅是葡萄栽培管理的輔助手段，不能盲目孤立地依賴生長調節(jié)劑。生2：我們小組查的資料是關于小麥使用生長調節(jié)劑。小麥應用植物生長調節(jié)劑，可以調節(jié)植株的生長發(fā)育，具有控旺促壯、增強抗逆性、增加粒重、提高產(chǎn)量并有利于優(yōu)質、早熟等多重效果。生3：我找了一篇生長調節(jié)劑對矮牽牛大型穴盤生產(chǎn)。師：上面三位同學利用課下的時間，在網(wǎng)上查的三段文字都相當?shù)牟诲e，大家可以從中學到一些書本上沒有的知識，請大家結合剛剛三位同學的三段文字以及自己平時所積累的知識，討論以下幾個問題。師：你知道哪些農(nóng)產(chǎn)品在生產(chǎn)過程中使用了植物生長調節(jié)劑？師：哪些水果在上市前有可能使用了乙烯利？師：生產(chǎn)過程中施用植物生長調節(jié)劑，會不會影響農(nóng)產(chǎn)品的品質？師：如果你是水果銷售員，面對半青不熟的水果，你認為應當使用乙烯利催熟嗎？作為一個消費者，你又怎么看？
人教版高中生物必修3第三章第一節(jié)《植物生長素的發(fā)現(xiàn)》說課稿
（5）根據(jù)實驗的第五部分——驗證性實驗結果，證實了達爾文關于植物向光性運動原因的假說――確實存在一種物質致使胚芽尖端產(chǎn)生了向光運動。這樣通過多個實驗的多媒體演示過程，強化學生的思維，最終在學生的大腦中形成科學研究過程的”條件反射”。為了使學生初步學會”設計對照實驗的方法”，首先也利用多媒體的演示實驗，并在其中特意設置一些”陷阱”，通過多次”請學生進入‘陷阱’”，來強化設計實驗時應該控制的變量問題，從而在學生的認知領域里初步構建出設計對照實驗的知識體系。3、歸納總結1934年，荷蘭科學家郭葛等人從植物中分離出了這種能使植物產(chǎn)生向光性的物質，并確定它就是吲哚乙酸。這就真正從化學物質的角度證實了達爾文的假設。在能夠從植物體中分離提取出生長素之后，要想知道：除了能使植物產(chǎn)生向光運動之外，生長素對于植物的器官還有什么作用？可以采用哪種方法來進行試驗？
人教版高中生物必修1物質跨膜運輸?shù)姆绞秸f課稿
(4)提出問題:三種運輸方式有哪些異同 組織學生分析填表,反饋和糾正.提出問題:影響自由擴散,協(xié)助擴散和主動運輸速度的主要因素各是什么 畫出細胞對某物的自由擴散,協(xié)助擴散和主動運輸速度隨細胞外濃度的改變而變化的曲線圖組織學生分組討論,并作圖,展示各組的成果.教學說明:本環(huán)節(jié)鞏固理論知識是對課本知識擴展和對重點,難點內容的深入理解和總結,只有理解了三種運輸方式的異同,才能完成本環(huán)節(jié)教學任務,既突顯書本知識,又培養(yǎng)學生的團結協(xié)作的精神,提高學生制做圖表的能力和抽象化思維能力的形成.2.大分子的運輸引導學生回憶分泌蛋白的分泌過程,得出胞吐現(xiàn)象,提出問題:那大家知道白細胞是如何吃掉病菌的嗎 顯示有關圖片.強調:胞吞和胞吐作用都需要能量提出問題:胞吞和胞吐體現(xiàn)了細胞膜結構的特點是什么 與書本前面知識相聯(lián)系.(四)技能訓練指導學生就《技能訓練》部分進行討論五,反饋練習1.教師小結幾種運輸方式,特別是自由擴散,協(xié)助擴散和主動運輸?shù)奶攸c
人教版高中生物必修1生物膜的流動鑲嵌模型說課稿
二、流動鑲嵌模型的基本內容1、膜的成分2、膜的基本支架3、膜的結構特點4、膜的功能特性設計意圖：我根據(jù)板書的“規(guī)范、工整和美觀”的要求，結合所教的內容，設計了如圖所示的板書，使學生對本節(jié)課有一個整體的思路。八、教學反思：本節(jié)課我創(chuàng)設了問題情境來引導學生主動學習，利用了多媒體信息技術激發(fā)學生的學習熱情，調動了學生的積極性，成功實現(xiàn)預期的教學目標。體現(xiàn)了學生為主體地位的新課程理念。啟發(fā)式、探究式的教學方法以及由教師指導下的學生自主閱讀、合作交流的學習方法把學生從死記知識的苦海中解救出來。初次的嘗試還存在一定的缺陷，學生不能夠很好的把知識和習題聯(lián)系，只是把他所知道的知識簡單羅列，不能夠體現(xiàn)出能力的訓練。在上課中發(fā)現(xiàn)學生比較靦腆或拘束，聲音比較小，表達不能到位。盡管本節(jié)課存在諸多不足之處，但是也讓我看到了閃光點：學生比較歡迎這樣一堂自己是主角的課堂。
人教版高中生物必修2現(xiàn)代生物進化理論的主要內容說課稿
什么因素可以阻止種群間基因交流呢？由此可引出隔離的概念。學生初步理解隔離的概念之后，可以安排學生討論隔離的各種可能的方式，教師歸納出隔離的類型。然后組織學生閱讀分析教材中的“資料分析”，組織討論“資料分析”中提出的幾個問題。最后教師應強調，一般情況下，地理隔離是生殖隔離的先決條件，生殖隔離一旦形成，原來屬于一個物種的兩個種群，就成了兩個物種。關于“共同進化與生物多樣性的形成”內容的教學，可以學生自學為基礎，教師提出一些具有啟發(fā)性的問題，師生共同歸納總結的方式推進教學過程。使學生理解共同進化的含義，無機環(huán)境的變化、無機環(huán)境的復雜化和多樣化、有性生殖的出現(xiàn)和生態(tài)系統(tǒng)結構的復雜化和多樣化對生物多樣性形成的作用。最后，組織學生討論生物進化理論在發(fā)展。
人教版高中生物必修3第五章第三節(jié)《生態(tài)系統(tǒng)的物質循環(huán)》說課稿
步驟四：展示點評、質疑探究展示小組展示討論論成果，要求每組B、C層次學生進行展示。展示結束后由點評同學對展示結果進行點評，要求先點評對錯；再點評思路方法和應注意的問題。既要有結論，又要有分析，力爭有相關的總結和拓展。下面的同學注意傾聽、思考，關鍵內容做好筆記，有補充或不明白的地方及時、大膽提出，力爭全部過關，解決疑難點。根據(jù)學生點評結果，教師適當點評拓展。步驟五：拓展提升、總結升華簡單扼要的課堂小結，系統(tǒng)回顧知識，強化學生對于生態(tài)系統(tǒng)物質循環(huán)的認識。環(huán)節(jié)三：課后檢測布置訓練內容，鞏固知識。五、課后反思：本堂課采用我校163高效課堂模式，通過小組合作探究、展示自我、互相點評的方式完成整堂課的教學內容，充分突出了新課標中以學生為主體的指導思想。教學過程中，依據(jù)學生的個性差異，提出不同要求，布置不同任務，讓不同層次的學生都能參與其中，調動全體學生的積極性，促進全體學生的發(fā)展。