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人教版高中数学选修3全概率公式教学设计
2.某小组有20名射手，其中1，2，3，4级射手分别为2，6，9，3名.又若选1，2，3，4级射手参加比赛，则在比赛中射中目标的概率分别为0.85，0.64，0.45，0.32，今随机选一人参加比赛，则该小组比赛中射中目标的概率为________. 【解析】设B表示“该小组比赛中射中目标”，Ai(i=1，2，3，4)表示“选i级射手参加比赛”，则P(B)= P(Ai)P(B|Ai)= 2/20×0.85+ 6/20 ×0.64+ 9/20×0.45+ 3/20×0.32=0.527 5.答案：0.527 53.两批相同的产品各有12件和10件，每批产品中各有1件废品，现在先从第1批产品中任取1件放入第2批中，然后从第2批中任取1件，则取到废品的概率为________. 【解析】设A表示“取到废品”，B表示“从第1批中取到废品”，有P(B)= 112，P(A|B)= 2/11 ，P(A| )= 1/11所以P(A)=P(B)P(A|B)+P( )P(A| )4．有一批同一型号的产品，已知其中由一厂生产的占 30%, 二厂生产的占 50% , 三厂生产的占 20%, 又知这三个厂的产品次品率分别为2% , 1%, 1%，问从这批产品中任取一件是次品的概率是多少？
人教版高中数学选修3条件概率教学设计
(2)方法一:第一次取到一件不合格品,还剩下99件产品,其中有4件不合格品,95件合格品,于是第二次又取到不合格品的概率为4/99,由于这是一个条件概率,所以P(B|A)=4/99.方法二:根据条件概率的定义,先求出事件A,B同时发生的概率P(AB)=(C_5^2)/(C_100^2 )=1/495,所以P(B|A)=(P"(" AB")" )/(P"(" A")" )=(1/495)/(5/100)=4/99.6.在某次考试中,要从20道题中随机地抽出6道题,若考生至少答对其中的4道题即可通过;若至少答对其中5道题就获得优秀.已知某考生能答对其中10道题,并且知道他在这次考试中已经通过,求他获得优秀成绩的概率.解:设事件A为“该考生6道题全答对”,事件B为“该考生答对了其中5道题而另一道答错”,事件C为“该考生答对了其中4道题而另2道题答错”,事件D为“该考生在这次考试中通过”,事件E为“该考生在这次考试中获得优秀”,则A,B,C两两互斥,且D=A∪B∪C,E=A∪B,由古典概型的概率公式及加法公式可知P(D)=P(A∪B∪C)=P(A)+P(B)+P(C)=(C_10^6)/(C_20^6 )+(C_10^5 C_10^1)/(C_20^6 )+(C_10^4 C_10^2)/(C_20^6 )=(12" " 180)/(C_20^6 ),P(E|D)=P(A∪B|D)=P(A|D)+P(B|D)=(P"(" A")" )/(P"(" D")" )+(P"(" B")" )/(P"(" D")" )=(210/(C_20^6 ))/((12" " 180)/(C_20^6 ))+((2" " 520)/(C_20^6 ))/((12" " 180)/(C_20^6 ))=13/58,即所求概率为13/58.
人教版高中数学选修3正态分布教学设计
3.某县农民月均收入服从N(500,202)的正态分布,则此县农民月均收入在500元到520元间人数的百分比约为 . 解析:因为月收入服从正态分布N(500,202),所以μ=500,σ=20,μ-σ=480,μ+σ=520.所以月均收入在[480,520]范围内的概率为0.683.由图像的对称性可知,此县农民月均收入在500到520元间人数的百分比约为34.15%.答案:34.15%4.某种零件的尺寸ξ(单位:cm)服从正态分布N(3,12),则不属于区间[1,5]这个尺寸范围的零件数约占总数的 . 解析:零件尺寸属于区间[μ-2σ,μ+2σ],即零件尺寸在[1,5]内取值的概率约为95.4%,故零件尺寸不属于区间[1,5]内的概率为1-95.4%=4.6%.答案:4.6%5. 设在一次数学考试中,某班学生的分数X~N(110,202),且知试卷满分150分,这个班的学生共54人,求这个班在这次数学考试中及格(即90分及90分以上)的人数和130分以上的人数.解:μ=110,σ=20,P(X≥90)=P(X-110≥-20)=P(X-μ≥-σ),∵P(X-μσ)≈2P(X-μ130)=P(X-110>20)=P(X-μ>σ),∴P(X-μσ)≈0.683+2P(X-μ>σ)=1,∴P(X-μ>σ)=0.158 5,即P(X>130)=0.158 5.∴54×0.158 5≈9(人),即130分以上的人数约为9人.
人教版高中政治必修3传统文化的继承说课稿
只有对儒家的价值作出客观、公正、全面的评价，才可能避免陷入文化虚无主义或文化复古主义的误区，合理地、充分地开发利用儒学乃至整个国学的资源为现代社会服务，为促进我国经济发展服务。运用所学知识，谈谈对待儒学我们应该持有的态度。答案：（1）儒学是我国传统文化中一个非常重要的组成部分。传统文化具有相对稳定性，它的内涵又能够因时而变，因此，我们对待儒学的正确态度应该是“取其精华，去其糟粕，批判继承，古为今用”。（2）面对儒学，我们要辩证地认识它在现实生活中的作用，分辨其中的精华和糟粕。对于其中符合社会发展要求的、积极向上的内容，应该继续保持和发扬，使其为社会主义现代化建设服务；对于其中不符合社会发展要求的、落后的、腐朽的东西，必须“移风易俗”，自觉地加以改造和剔除。(五)作业布置传统文化的作用是什么？如何正确对待传统文化？
人教版高中政治必修3感受文化影响说课稿
（2）世界观，人生观，价值观是人们文化素养的核心和标志。一旦形成就会对人产生深远持久的影响。（但随着生活阅历的变化，人们文化素养的提高，人们的“三观”会发生变化。）总之“潜移默化”指每时每刻，不知不觉；是从文化对人影响的过程来看的。“深远持久”指经年累月，难以抹去；是从文化对人影响的结果上说的。3.课堂总结：首先启动学生思维，教会学生把握知识主线，建构知识体系，先由学生进行总结，然后教师进行必要的补充4、布置作业：布置作业。运用文化对人的影响的知识分析“近朱者赤，近墨者黑”，并且应该如何处理朋友之间的关系。设计这个作业的意图是既让学生灵活运用所学知识，同时又让学生回归生活，如何处理朋友之间的关系。5、板书设计遵循板书设计的实用性、直观性的原则，根据本课的教材特点，我采用结构式板书，这样设计比较直观、系统，以便于学生能够系统把握和理解知识。
人教版高中政治必修3聚焦文化竞争力说课稿
（1）文化与经济、政治在经济基础上相互影响。①经济、政治和文化是社会生活的三个基本领域。其中，经济是基础，政治是经济的集中表现，文化是经济和政治的反映。一定的文化由一定的经济、政治所决定，又反作用于一定的政治、经济，给予政治、经济以重大影响。②经济发展是文化发展的基础。但这并不意味着文化的发展始终与经济的发展亦步亦趋。如同不能简单地把精神文明看作是物质文明的派生物和附属品一样，也不能简单地认为文化是经济、政治的派生物和附属品。文化有其自身的传承性和相对的独立性。那种认为只要物质条件好了，精神文化自然而然地就会好起来，物质条件差一点，精神文化就不可能搞好的观点，不符合历史发展的事实，是不正确的。③掀开历史的画卷，文化既有古今和地域之别，又有先进与落后、腐朽之分。不同的文化，对经济、政治的影响不同，对社会发展的作用也不同。不同民族的文化，影响不同民族和国家各具特色的发展道路。
人教版高中政治必修3文化与经济、政治说课稿
（二）讲授新课：1、讲授重点：文化与经济、政治的关系。我首先带领学生分析课本上的活动探究，了解日常生活中的常见活动，让学生们观看视频材料帮助学生对文化活动、经济活动、政治活动进行辨别和分类。然后让学生们举例说明，综合探究，最后通过集体讨论得出文化与经济政治的关系：经济是基础，政治是经济的集中表现，文化是经济和政治的反映，一定的文化由一定的经济和政治决定，又反作用于政治和经济。这个问题是本课重点。要引导学生循序渐进，集体讨论，得出结论。2、突破难点：（1）文化与经济政治相互交融，在时代发展的进程中。首先播放上海世博会视频，让学生体会文化、经济、政治活动，另外我会引导学生积极举生活中的事例，来说明问题，让学生学会举一反三，充分理解这一知识，让学生明白文化与经济、政治的联系，让学生清楚文化渗透的力量有多大，帮助学生树立反对文化霸权主义的意识。
人教版高中政治必修3体味文化说课稿
（二）引入内容1、播放幻灯片，从名言引出思考，什么是文化，如何理解文化？学生探究，既可质疑，也可谈自己对文化的理解2、幻灯片，以三组幻灯，分三个阶段，学生分别通过小组讨论的形式，归纳总结文化现象的三个特征3、根据对文化现象的认识，归纳总结文化的内涵及外延小活动：把不是文化的山、水、树，由几组同学画出来，体会文化的含义4、一组判断题，哪些是文化的，哪些不是5、理解文化的特点首先，根据前面，总结文化现象的特征，归纳出文化的普通性及特殊性其次，播放视频，归纳总结文化是人类特有的现象第三，根据教材材料，小组探究总结，文化是后天习得的第四，借助小活动的材料，归纳，文化需要一定的物质载体6、文化的作用首先、观看视频，小组探究总结，文化对于人的影响其次，观看视频，小组探究总结，文化对社会的影响
人教版高中政治必修3文化创新的途径说课稿
一、 教材分析1、地位和作用《文化创新的途径》是人教版教材高二政治必修3第二单元第五课第二个框题内容，本课是对全面两课的一个提升，同时对接下来学习第三、四单元的知识具有指导作用。文化创新是一个社会热点，具有很强的思想理论性和探索实践性。在前面两课中，学生基本明确了文化的交流、传播和发展；也明白了文化的继承和发展需要创新。而怎样进行创新是本节课探讨的内容，也是本单元的重点、难点和落脚点。2、教学目标（1）知识与能力目标：①识计文化创新的途径；理解文化创新过程中要认识和处理好两对基本关系：当代文化与传统文化、民族文化和外来文化的关系；②使学生初步具备认识和处理当代文化与传统文化、民族文化与外来文化关系的能力；使学生具备在合作、探究中体验生活、生成认识、构建知识的能力。
人教版高中政治必修3体味文化说课稿
3、文化的力量。为了使学生能辨证地分析文化的力量，我设计了两个问题进行探讨：（1）是不是任何文化都能起促进作用？（2）你在听或唱国歌时感受到一种什么样的力量？这样，学生在对比中学会辨证地分析文化的力量——先进的、健康的文化能促进社会发展和个人成长；落后的、腐朽的文化则阻碍社会发展和个人成长。同时还能提高学生的文化赏析能力，从而引导学生装自觉参加健康有益的文化活动，抵制不良文化的影响，投身到社会主义精神文明建设中去。关于课堂练习，我准备了5个针对性比较强的选择题，从而加深巩固本框题的重难点知识。最后，播放歌曲《走进新时代》，展示本课知识结构，指出本框题需重点掌握的问题，结束本课教学。课后作业，我设计了这样一个辨析的题目：文化是人们创造的全部财富的总和，它是人类特有的现象。
xx市第一高级中学2024年上半年工作总结和下半年工作计划
(一)完成校本部和莲溪校区的招生计划。暑假期间，充分利用微信公众号、微信朋友圈、视频号、抖音等各类宣传媒介，对招生进行宣传报道，营造良好的舆论氛围。开放咨询渠道，严格按照招生方案进行招生，确保圆满完成招生计划。(二)继续招纳贤才，进一步充实教师队伍。下半年将继续协助人社局、教体局开展校园招聘和社会招聘，广纳贤才，为学校的可持续发展菱定基础。(三)持续规范教学常规，提高教育教学质量一是抓好教学常规，教学常规的中心环节在课堂，力求课堂效果最大化。二是扎实做好尖子生培养工作。在尖子生培养方面，做到“精心”、“精品”，致力于寻求尖子生培养的良方。
正规实习劳动合同
一、实习内容1.甲方为乙方实习提供各项便利条件;2.乙方应虚心向甲方业务员学习外贸技术，基本掌握外贸工作的程序和实务;3.乙方应根据甲方安排积极协助甲方业务员办理外贸业务，同时完成甲方交办的其它事务;4.乙方在实习期内应积极寻找客户，开拓业务渠道，争取在实习结束前业务能上手。三、实习报酬实习期间甲方根据乙方的工作态度、工作表现等给予一定的劳务费。四、实习纪律乙方应严格遵守国家法律、法规和甲方制定的各项规章制度，乙方在业务上受指导老师指导，行政上由甲方办公室管理，实习期满由甲方写出实习鉴定。
实习生劳动合同范本WORD
一、协议期限本协议自_______年_____月_____日起至_______年_____月_____日止。 二、实习岗位甲方根据乙方的实际情况和工作需要，安排实习学生到___________岗位实习，乙方应按学校的教学内容及实习要求，努力完成实习任务。 三、实习津贴依照按劳取酬的原则，按甲方现行制度确定实习生的实习津贴。具体支付方法如下：实习津贴：元/月，其他补贴:根据实习生在岗工作表现，以奖金形式发放。
人教版高中英语必修4Body Language说课稿4篇
Textbook: Senior English for China (Book 4), by Liu Daoyi Time Allotment: 1 period (40 minutes)Date: March 20, 2014Teaching aids: blackboard, Multi-media, Power Point, chalk I. Text Analysis （教材分析）This unit is about body language, and the text selected in the reading part demonstrates the difference and similarity of body language in many parts of the world. Through learning this passage, students are required to raise their awareness of using body language in different parts of the world. As body language is closely related to our daily life, it is easy to arouse students’ interest in learning this text. Reading skills and speaking training are designed around the text.II. Teaching Objectives （教学目标）By the end of the lesson, students will be able to:1. Language Skill Objective（语言技能目标）: develop reading ability （skimming and scanning）as well as speaking ability.2. Cultural Knowledge Objective（文化知识目标）: know about the cultural differences of using body language.3. Affective Objective（情感目标）: increase students’ awareness of using body language correctly in different cultures. III.Teaching Focuses and Difficulties（教学重点和难点）1. Teaching Focuses（教学重点）: the difference and similarity of body language in many parts of the world.2. Teaching Difficulties（教学难点）: develop students’ reading abilities of skimming and scanning and ask the students to show their opinions with fluent English.
人教版高中英语必修1English around the world说课稿
(3)v. 给：提出；展现，显现present sb. with sth. ; present sth. to sb. 把. . 交给；颁发；授予present sth. (for sth. )/present sth. to sb. e. g. Om his birthday, his friends presented him a collection of stamps. 在他生日时，他的朋友们送给他一套邮票作为礼物。The sword was presented by the family to the museum. 这家人把宝剑捐赠给了博物馆。The committee will present the final report to Parliament in June. 委员会将在六月向议会提交最后的报告。You need to present yourself better. 你需要更善于展现自己。It is essential that we present a united front. 至关重要的是我们要表现得更加团结。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.
人教版高中英语必修1Nelson Mandela--A Modern Hero说课稿
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（板书设计）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.
人教版高中英语必修2Cultural Relics说课稿2篇
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:
人教版高中英语必修3Astronomy the science of the stars说课稿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3Canada-the true north说课稿4篇
Good afternoon, teachers, It’s my great pleasure to be here sharing my lesson with you.The content of my lesson is Senior English Book 3 Unit 5 Canada —— “The true North”.I’ll be ready to begin this lesson from five parts. Analysis of the teaching material,the teaching methods,the studying methods, the teaching procedure,and Blackboard design.First, let me talk about the teaching material.Part 1 Teaching Material:This unit is about the introduction of Canada. By studying of this unit,we’ll enable the students to learn the geography, population, main cities, and natural beauty, natural resources of Canada. Through the training of the unit, it also requires students to learn some Language skills such as the expressions of position and emotions.So it plays an important part in the English teaching in this book.After studying the teaching material and analyzing the rule of children’s growing of mind,I think the teaching aims are the followings:1.Knowledge objects:(1) make the students learn some new words and phrases(2) make the students understand the content of the lesson.2.Ability objects:(1)To develop the Ss’ abilities of listening, speaking, reading and writing. Especially reading and speaking ability.(2) learn to talk about the characters of Canada in English(3)To train the Ss’ ability of working in pairs.3.Emotion objects:(1)Enable students to understand the characters of Canada..(2)Stimulate Ss to work hard to make China stronger.Part 2 Teaching Methods:I think helping students learn to master new words and phrases and improve the students’ reading and speaking ability is import and the difficult.According to the analysis of the teaching material and the import points and the difficult points,I will use the following teaching methods : question-guiding approach; fast-reading and careful reading; multi-media teaching methods; discussion
