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人教版高中英语必修2The Olympic Games说课稿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
人教版高中英语必修2Wildlife Protection说课稿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（成龙）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.
人教版高中英语必修4A taste of English Humor说课稿3篇
Then I would ask them to think of a funny English or Chinese and tell it to partners. While telling stories, they can use expressions and some acting to help make the story funny. 5 minutes would be given to do this.Those stories they told there will be the material for their writing. Soletting them tell it at first is helpful. And they can make a difference between telling a funny story and writing it down. Generally speaking, it is difficult forstudents to write well because they don’t know what to write and how to write. Asking them to tell their own stories at first can help them come up with what to write.After their telling, I would invite someone to share his/her story with all of us and I would write it down on the blackboard.This example story would be used as a sample to illustrate the format of funny story. Different from a story from teacher or textbook, a story from students can obviously become a interesting material to draw students’ attention.Then I would ask the whole class to put this story into several parts. It might be a little bit difficult for them. So I would ask them to find out whether all the sentences are necessary. After delete some sentences, there are 6 sentences left behind. Then they can easily put them into three parts. After interaction with students, I would teach them the right terms for each part and conclude the format of funny story.This step is the key and difficult point in my lesson. So I mainly usetask-based teaching method in this part and the task for students was divided into several stages. With the separated difficult level, students can find there are usually three parts in writing. They can also learn to write without the unnecessary parts in the process of analyzing. And then I wouldn’t rush to tell them the right terms to them directly. Instead, I would ask them to name them by their own. A confused mind is better for acquiring knowledge.While-writing:Then I would give students 7 minutes to write down this story, without other requirements.With all the preparations in pre-writing, students’ difficulties were cleared. So it would be much easier for them to write down the story within 7 minutes. There are no other requirements because students’ first writing is actually a drafting. It would be revise and edit several times later. Writing, as a skill
人教版高中英语必修4Women of achievement说课稿4篇
Good morning, distinguished judges:It’s my honor to talk about my teaching ideas with you. Today my topic is Women of Achievement. My presentation consists of six parts: the analysis of teaching material and student, teaching aims, key and difficult points, teaching and studying method, teaching procedures and blackboard design.First, let’s focus on the analysis of teaching material. This lesson is from New Senior English for China Student’s Book 4 Unit 1, the reading part. The main topic of the passage is the introduction of a student of Africanwildlife. After this lesson, the students will learn more information about her studying chimps in Africa, and their reading and speaking abilities can be developed as well.The next part is the analysis of students. My students are in senior high students. They have learnt English for many years, they’ve known many words and sentences, but their speaking and reading abilities are still not very good. So I will practice their speaking and reading abilities through different exercises.According to the New Standard Curriculum and the present situation, I set the teaching aims as follows: firstly, knowledge aims. Students can grasp some new words, such as worthwhile, move off. Moreover, students can understand the content of the passage and get familiar with the topic of studying chimps in wildlife. Secondly, ability aims. Students can use reading strategies such as skimming and scanning in reading process. Thirdly, emotional aims. Students can have the awareness of protecting animals and care about animals.Based on the above analysis, the key point of this lesson is to get the main idea and the detailed information from the passage; the difficult point is to talk about the wildlife protection and use reading strategies.
人教版高中英语必修3Festivals around the World说课稿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:
人教版高中英语必修3Healthy Eating说课稿4篇
Language learning needs a context, which can help the learners to understand the language and then can product comprehensible output, so computer has the advantages to make the materials attractive.Part 3 Learning MethodsTask-based, self-dependent and cooperative learningPart 4 Teaching ProcedureStep One Lead-in“Interest is the best teacher.” Therefore, at the very beginning of the class, I should spark the students’ mind to focus on the centre topic “the band”. I’ll show some pictures of food to attract their attention and then bring some questions.Question:What kind of food they like?What should go into a good meal?The answers must relate to the diet. After this, the students will be eager to know something about a balance diet and this is the very time to naturally lead the class into Step 2Step 2 Reading for information: skimming and scanning In this step, I use Task-based Language Teaching method, which can give students a clear and specific purpose while skimming and scanning the context.Task 1 General ideaThe students will be asked to just glance at the title and the pictures of the passage, and then guess what they will read in the text. And they’ll be divided into groups of four to have a discussion.The purpose is to inspire the students to read actively, not passively. In addition, the task is to develop the students’ reading skill by making prediction and to encourage the students to express their thoughts in English and cooperate with each other.Task 2 Main idea of each paragraphCooperative learning can raise the students’ interest and create an atmosphere of achievement. Based on this theory, I divide the whole class into 4 groups to skim the whole text and get the main idea of each paragraph.
人教版高中英语必修4Working The Land说课稿3篇
Knowledge objectives:(1) to make Ss grasp the usage of words, expressions and sentence structures: statistics, struggle, thanks to, rid of, some patterns for persuasion, the “ing” form as subject and object;(2)to use learnt knowledge to persuade sb.Ability objectives:(1) to develop Ss’ reading skills(skimming, scanning, word guessing);(2) to improve Ss’ speaking, communicating and cooperating skills.Emotional objectives:to make Ss know the contribution of Yuan,and learn his spirit and his simple life time.Teaching important and difficult points:(1) some words, expressions and sentence structures mentioned above;(2)the content of the text;(3)training their reading and speaking skills.Teaching methods: CLT, TBLT,QT.Learning strategies: CLS, QLS, TBLS.Teaching procedures:Step 1 lead-in: (1) teacher plays a piece of recent news from CCTV about the harvest of the super hybrid rice, and ask students whether they know Yuan or not, and talk about him and his contribution.(2)Brain storm: let Ss describe Yuan in their minds including his appearance, his living condition and so on.Step 2 fast reading tasks:(1)teacher introduces Yuan and super hybrid rice(2)make Ss read the text as fast as possible with questions. Such as: what’s the general ideaof this passage? What’s Yuan’ dream? (skimming and scanning skill)Step 3 intensive reading tasks(1)let Ss read the text silently, find topic sentence of each paragraph and draw the difficult sentences and the knowledge what they don’t understand.(words guessing)(2)teacher and Ss talk about the important words, expressions and sentences together, and ask Ss to retell the content of the text.(summarizing and paraphrasing)(3)teacher summarize this part.(4) read again following the courseware.
人教版高中英语必修5First aid说课稿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:
人教版高中英语必修5Great scientists说课稿4篇
通过写文章梗概，培养学生综合运用语言的能力，学习用恰当的英语描述科学家的故事。这是本课的教学难点。教师可以使用完形填空的方式来帮助学生整理语篇，从而来降低难度。本课的教学重点的突破方法是：在阅读前，让学生初步了解得出科学观点所需要的基本程序，从而轻松而自然地导入文章的阅读；在阅读过程中，由易到难设计快速阅读和精读的问题，层层推进各种阅读活动，让学生对阅读内容从整体感知到细节理解，最后深层读懂整篇文章，同时加强阅读策略的指导，让每个学生都主动参与课堂教学活动，最终达到提高阅读能力的目的。Step 4 Post-readingGroup Activities四人小组共同合作，在老师的适当指导下，就以下2个问题展开讨论，让学生就所知、所学、所感和所想融入话题，然后抽若干同学代表作小组发言。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?
人教版高中英语必修5Making the news说课稿4篇
今天我们来介绍一下必修五第四单元的授课方式。这个单元的题目是Making the news。应该是学生比较感兴趣的话题，学生往往对新闻工作充满好奇，所以我们可以利用这个机会多设计一些师生互动和学生互动，来激发起学习的积极性，提高学习效率。同时我们可以利用这个单元不仅帮助学生掌握语言知识，培养语言能力，同时让其了解新闻工作的重要性，培养起社会智能感。这个单元分为六个课时，它的教学目标是这样的：语言目标是掌握词汇表中的常用单词和短语，掌握倒装句的一些基本用法。 技能目标是能初步掌握约会的基本句型并在真实的场景下正确运用。新闻报道类文章的写作技能。采访的基本规范和沟通技能。情感目标是对新闻报道的客观性和真实性有更好的理解。对新闻记者的职业有更深入的了解，并能体会其工作的重要性。下面我们来介绍一下第一课时的授课方式，第一课的教学目标是这样的第一课时的教学目标语言目标:单词：Occupation, journalist, editor, photographer, curious, personality, enthusiasm
人教版高中英语必修5The United Kingdom说课稿4篇
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.
人教版高中地理必修2煤城焦作出路何在说课稿
分析过焦作市的地理概况和产业优势后，就需要针对由于资源枯竭所带来的问题提出合理化的建议。既然是谈经济转型，就应该将话题的范围明确在这一领域内。通过材料3的相关内容，我们了解到焦作市需要在产业结构调整、培育新的优势产业、增强综合竞争力等三个整改方针上下功夫。因而引导学生针对优势与不足提出建议，以三个整改方针为基准，衡量建议的可行性是锻炼学生解决此类问题的有效途径。在此我将教会学生的是解决问题方法而非案例的内容，正所谓“授之以鱼，不如授之以渔”。接下来针对学生的建议和教材资料分析所罗列的10点整改思路，由学生自由发言提出看法，通过教师的指导和学生的讨论，进而确定经济转型建议的具体方案。最后注意将建议与产业优势相对照，看建议是否都是围绕着产业优势而提出的，这样做会加深学生的印象，通过建议和优势的对应关系，将不难找出此类问题的解题思路。
人音版小学音乐一年级上三个和尚说课稿
3.请几组同学表演这几个的场面，其他同学做评委，从模仿表演中享受学习音乐的快乐。五.课堂小结 （阶段目标：以“我的收获”（课件十）帮助学生总结所学内容，知道音乐中，不同的音乐要素可以表现不同的人物、场面）课后反思：（课件十一）在本节音乐欣赏教学中，我坚持以“听”为核心（因为音乐是一门听觉艺术），让学生“带着问题听”、“想着听”、“动着听”、“演着听”等多元化的“听”的形式。一系列“听”的任务不仅提高学生的注意力，而且提高学生“听”的兴趣与“听”的质量。而且我创造和谐的课堂气氛，积极引导学生把对音乐的内心感受大胆地用语言表达出来，让学生主动参与音乐快乐学习的实践中去，创建出有利于学生发展的生动活泼的音乐课堂情景，让学生的了解音乐，感受音乐，融入音乐。
人音版小学音乐一年级上新年好说课稿
一、说教材《新年好》 是一节以唱歌为主的音乐综合课，这首歌是一首流行全世界、家喻户晓、深受欢迎的英国儿童歌曲。3/4拍、F大调，曲调优美、流畅，歌词质朴亲切，能将人们带入互相祝贺新年的欢乐情景中，进而表现人们载歌载舞互相祝贺、轻松而愉快的心情。二、说目标1、认知目标：运用亲切、甜美而富有弹性的声音演唱《新年好》，感受中外小朋友过新年的不同音乐情趣。2、技能目标：通过游戏，培养学生感受、听辨已经学过的打击乐器的音色与节奏的能力，并能用动作感受三拍子的强弱规律。3、情感目标：在活动过程中体验过新年、合作学习的愉快。学会热爱今天的幸福生活，热爱世界的音乐文化。丰富学生情感体验，陶冶学生高尚的情操。 三、说重、难点重点是：能以体验的方法、自主探究的方式，学唱歌曲《 新年好》，能主动参与小组创编活动，大胆地进行即兴歌表演。创造性地表现歌曲。 难点是：听辨节奏，用各种方式为三拍子的歌曲伴奏。
人音版小学音乐一年级下小宝宝睡着了说课稿
三、聆听、表演《小宝宝睡着了》 1、聆听歌曲启发学生说说听到歌曲时感受到了什么？2、复听，跟着歌曲，轻柔地拍节拍。 3、听琴声逐句学唱歌曲。 4、指导学生用连贯、轻柔的声音，唱准、唱好歌曲。 5、重点引导学生说说结尾的处理方式——对比练习，看哪一种方法更恰当 6、引导学生用自己创作的方式为歌曲伴奏、伴舞。 四、小结。 教学反思：一年级课堂上会有一些学生在上课的时候出现喊唱的现象，我在歌曲处理这一环节对歌曲的意境作了这样的描述：静静的夜晚，天上的星星睡了、月亮睡了、地上的鸟儿、虫儿也都进入了梦乡，小宝宝也在悠荡的摇篮里，听着妈妈甜美的歌声，渐渐入睡了。同学们妈妈哄宝宝睡觉唱歌的声音应该是欢快的，还是轻柔的？经过我的描绘和讲解学生理解了在演唱摇篮曲时应该用轻柔的声音，要把每一句都连贯的唱起来，不仅句与句之间要连贯，第一、第二段也要衔接紧凑，轻轻的哼唱出来，体会妈妈哄小宝宝睡觉时是多么的温柔。
人音版小学音乐一年级下音乐的快慢说课稿
3、用木鱼来演奏音乐的不同节奏。（1）师：小动物们都能听着音乐按节奏走路了，下面我想考考你们能不能用这种乐器来演奏不同的节奏呢。（2） 出示木鱼，演示木鱼的演奏方法。师：左手拿木鱼，右手拿木棍，敲的时候要注意不要打在自己的手指上，打在手指上是没有声音的。（3） 玩游戏《听一听》，训练学生的听辨能力和记忆能力。师：我们先来玩一个游戏，老师敲出几个不同的节奏，你们听听哪个是最慢的，哪个是最快的，看谁的耳朵最灵敏。（4） 学生练习演奏木鱼，学会用木鱼敲出不同的节奏，教师个别指导。师：现在就请同学们自己来演奏木鱼，你可以尝试着怎样敲会快一点，怎样会慢一点。（木鱼学生人手一个）[设计思路]在分层教学过程中，由于个别学生的基础比较差，第一和第二段音乐的演奏训练还不能完全掌握，所以花的时间比较长。导致接下的第三和第四段音乐的木鱼节奏训练没有时间完成。我将在第二课时的复习巩固课上再让同学们来练习演奏。
人音版小学音乐四年级下册西风的话说课稿
课堂上随机给出鼓励和肯定的语言更显教师的亲和力，营造出一个自由、民主的课堂教学氛围。如：“你很棒”“说得太好了”“掌声鼓励”等等，听似平淡无奇，但结合那时那景则显得老师语言的朴实与自然，学生同老师间的默契与和谐。听完朱老师执教的《西风的话》一课，通过认真反思我真切认识到：一堂好课是否愉悦高效，就看教师是否真正用心的地去诠释作品，真正用心地去备课。孙老师执教的《西风的话》平实、淡雅，教师教态自然大气，言谈中充满着激情，让我们的心不自觉跟着一起走。我想不出什么华丽的词藻来描述这堂课，但我却深深地被吸引，这应该就是生命课堂的魅力所在吧。听了孙老师执教的《西风的话》后收获很多，能于言表的也还没有表达充分，但更多的是带给我的触动和对自己所教学科如何“高效愉悦”的思索。也希望凭借着“高效愉悦”课堂活动的深入开展，让自己的美术课堂灵动起来，让我们的课堂真正成为孩子们探求知识的乐园。
人音版小学音乐五年级下册铃儿响叮当说课稿
结合我们学校的教学条件和我自身会弹琴的优势，我还设计了课堂弹奏活动，激励学生练习好了参加圣诞联欢晚会给大家表演节目。 我把第一段的乐谱进行了简化节奏让学生弹奏，在弹奏基本完成后还设计了学生边唱边弹，并且分组让学生用电子琴自带的的打击乐器进行合奏练习，让学生在学唱的同时更加深入的体会音乐欢快活泼的节奏特点，同时让学生感受合奏的整体的音响效果，培养了学生的动手能力和集体合作能力。 六、总结 本课以歌曲《铃儿响叮当》为主要内容，听、唱、弹等教学环节都围绕他展开，各教学环节的设计易于统一，各项活动的设计均以音乐审美为核心，教学中关注段落的划分，注重引导学生的参与，体验，引导学生积极探索创造学习，展现音乐的节奏之美。
人音版小学音乐六年级下册DoReMi说课稿
1.通过欣赏《DO RE Mi》的影片，调动学生的积极性，增强学生学习新歌的兴趣。2.了解电影。任何一首歌曲都有着不一样的故事，通过文字简介，能够帮助学生深入歌曲的学习，升华表演的情绪。然后通过聆听歌曲《DO RE MI》，师范唱，生听唱，师指导唱的形式来帮助学生继续领略音乐的魅力。7.音乐游戏。不仅将学生分成七个小组跟琴演唱，还让学生根据伴奏完成歌曲接龙，充分体现了学生在课堂中的主体性。8.拓展开发。通过了解柯尔文手势，电影的背景资料和歌曲《孤独的牧羊人》的欣赏，提高学生的能力。第二环节既是这节课的重点，也是难点，通过引导学生运用手势音阶和肢体语言来表演歌曲《DoReMi》，又通过小组合作的方式突破难点。最后小结，简单地总结了同学们的表演让所有人感受到音乐带给我们的无穷乐趣，七个音乐字母构成了美妙的音乐，最后在美妙的音乐中结束了这节课！
北师大初中数学七年级上册有理数说课稿
1、 教材的地位和作用本课教材所处位置，是小学所学算术数之后数的范围的第一次扩充，是算术数到有理数的衔接与过渡，并且是以后学习数轴、相反数、绝对值以及有理数运算的基础.2、 教学目标①理解有理数产生的必然性、合理性及有理数的分类；②能辨别正、负数，感受规定正、负的相对性；③体验中国古代在数的发展方面的贡献.3、 教学重点和难点教学重点：理解正数和负数的概念和有理数概念.教学难点：对负数概念的理解和有理数的分类.二、 教学分析鉴于初一年级学生的年龄特点，他们对概念的理解能力不强，精神不能长时间集中，但思维比较活跃。我决定采取启发式教学法及情感教学，创设问题情境，引导学生主动思考，用大量的实例和生动的语言激发学生学习兴趣，调节学习情绪。