集体备课教案模板.pdf

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1、驻马店市第十三中学 2016-2017 学年度第二学期 学科：数学 教研组长审批：周次：1 课题：3.1 圆 序号 1 备课组 九年级 主备人 岳素贞 授课时间 2017 年 2 月 教 学 目 标 1 1理解确定圆的条件及圆的表示方法；(重点)2掌握圆的基本元素的概念；(重点)3掌握点和圆的三种位置关系(难点)重 点 理解确定圆的条件及圆的表示方法；(重点)难 点 掌握点和圆的三种位置关系(难点)教学方法 讲练结合 教具 教 学 过 程 一、情境导入 古希腊的数学家认为：“一切立体图形中最美的是球形，一切平面图形中最美的是圆形”它的完美来自于中心对称，无论处于哪个位置，都具有同一形状，它最谐

2、调、最匀称观察图形，从中找到共同特点 二、合作探究 探究点一：圆的有关概念【类型一】圆的有关概念 下列说法中，错误的是()A直径相等的两个圆是等圆 B长度相等的两条弧是等弧 C圆中最长的弦是直径 D一条弦把圆分成两条弧，【类型二】圆的概念的应用 如图，CD是O的直径，点A为DC延长线上一点，AE交O于点B，连接OE，A20，ABOC，求DOE的度数 二次备课 解析：探究点二：点与圆的位置关系【类型一】判定几何图形中的点与圆的位置关系 在 RtABC中，C90，AB10，BC8，点D、E分别为BC、AB的中点，以点A为圆心，AC长为半径作圆，请说明点B、D、C、E与A的位置关系 解析：先根据勾股

3、定理求出AC的长，再由点D、E分别为BC、AB的中点求出AD、AE的长，进而可得出结论 解：在 RtABC中，C90，AB10，BC8，AC AB2BC2102826.AB106，点B在A外；在 RtACD中，C90，ADAC，点D在A外；ACAC，点C在A上；E为AB的中点，AE12AB56，点E在A内 方法总结：解决本题关键是掌握点与圆的三种位置关系【类型二】根据点与圆的位置关系确定圆的半径的取值范围 有一长、宽分别为 4cm、3cm 的矩形ABCD，以A为圆心作A，若B、C、D三点中至少有一点在圆内，且至少有一点在圆外，则A的半径r的取值范围是_【类型三】在平面直角坐标系中判断点与圆的位

4、置关系 如图，O过坐标原点，点O的坐标为(1，1)，试判断点P(1，1)，点Q(1，0)，点R(2，2)与O的位置关系 解【类型四】点与圆的位置关系的实际应用 如图，城市A的正北方向 50 千米的B处，有一无线电信号发射塔已知，该发射塔发射的无线电信号的有效半径为100 千米，AC是一条直达C城的公路，从A城发往C城的客车车速为 60 千米/时(1)当客车从A城出发开往C城时，某人立即打开无线电收音机，客车行驶了 0.5 小时的时候，接收信号最强此时，客车到发射塔的距离是多少千米(离发射塔越近，信号越强)?(2)客车从A城到C城共行驶 2 小时，请你判断到C城后还能接收到信号吗？请说明理由 解

5、：(1)过点B作BMAC于点M，则此时接收信号最强AM600.530(千米)，AB50 千米，BM40 千米所以，客车到发射塔的距离是 40 千米；(2)到C城后还能接收到信号理由如下：连接BC，AC602120(千米)，AM30 千米，CMACAM90 千米，BCCM2BM210 97千米100 千米所以，到C城后还能接收到信号 方法总结：解决本题的关键是能够正确理 板书设计 圆 1圆的有关概念 2点和圆的位置关系 设O 的半径为r，点 P 到圆心的距离 OPd，则有：点 P 在圆外dr；点 P 在圆上dr；点 P 在圆内dr.教学 反思 驻马店市第十三中学 2016-2017 学年度第二学

6、期 学科：教研组长审批：周次：课题：序号 2 备课组 主备人 授课时间 年 月 日 教 学 目 标 -重 点 难 点 教学方法 教具 教 学 过 程 二次备课 板书设计 驻马店市第十三中学 2016-2017 学年度第二学期 学科：教研组长审批：周次：课题：序号 备课组 主备人 授课时间 年 月 日 教 学 目 标 -重 点 难 点 教学方法 教具 教 学 过 程 二次备课 板书设 计 驻马店市第十三中学 2016-2017 学年度第二学期 学科：教研组长审批：周次：课题：序号 备课组 主备人 授课时间 年 月 日 教 学 目 标 -重 点 难 点 教学方法 教具 教 学 过 程 二次备课 板

7、书设计 驻马店市第十三中学 2016-2017 学年度第二学期 学科：教研组长审批：周次：课题：序号 备课组 主备人 授课时间 年 月 日 教 学 目 标 -重 点 难 点 教学方法 教具 教 学 过 程 二次备课 板书设 计 20162017 学年度第一学期 学科：九年级英语 教研组长审批：周次：分数：课题：Unit7 Where would you like to visit?Section A 1a-1c (period 2)序号 备课组 Grade 8 执笔人 授课时间 2016 年 月 日 教 学 目 标（1）Train students to talk about places t

8、hey would like to visit with the target language（2）Train students to describe vacations with different adjectives（3）Train students listening skill 重 点 Describe vacations with different adjectives 难 点 Talk about different places with the target language 教学方法 教具 教学过程 Step 1.1.Check the new words.tirin

9、g adj.educational adj.peaceful adj.fascinating adj.thrilling adj.take it easy Florida trek v.Amazon jungle n.Niagara Falls What kind of places would you like to go on 二次备课 vacation?Step 2.Lets talk and learn.Tell which place youd like to visit and why.A:Where would you like to visit?B:I like to beca

10、use Step 3.Lets extend and improve.Some useful expressions 1.goonvacation 2.trek through the jungle 3.go trekking 4.hope to do sth.5.some day/one day 6.go somewhere relaxing Step 4.Lets practice and improve.-Can a plane fly _ the Atlantic Ocean?-Yes but it needs to go _ the clouds for hours.(2011 山东

11、烟台)A.across through B.through across C.across across D.through through 答案：A 解析：across，表示从物体的表面“穿过，越过”；through 表示从某物的内部“穿过”。句中“飞越大西洋”要使用 fly across，从云层中“穿过”，要使用 through。The young men walked _ the forest and came to a big river at last.(2009 漳州中 考)A.on B.over C.through D.across 选 C The policeman helpe

12、d the old woman _ the road.(2008 芜湖中考)A.above B.across C.through D.over 选 B Step 5.Lets sum up.板书设计 教学反思 20162017 学年度第一学期 学科：九年级英语 教研组长审批：周次：分数：课题：Unit7 Where would you like to visit?Section A 3a-4 (period 3)序号 备课组 Grade 8 执笔人 授课时间 年 月 日 教 学 目 标（1）Train students to talk about places they would like

13、to visit with the target language（2）Train students to describe vacations with different adjectives（3）Train students listening skill 重 点 Describe vacations with different adjectives 难 点 Talk about different places with the target language 教学方法 教具 教学过程 Step 1.1.Check the new words.touristy adj.spotlig

14、ht n.consider v.lively adj.sight n.including prep.tower n.church n.convenient adj.underground adj.general n.in general wine n.translate v.pack v.light adj.Step 2.Read and learn.1.Where is Paris?2.Are there any beaches?3.What is the most famous sight in Paris?4.Do Frenchmen speak English?5.If you go

15、to Paris,how will you visit the city?6.What do you think of Paris?For your next vacation,why not consider visiting Paris?why not =why dont you 为什么不 用于表示提议、劝导等，在 why not?结构中，not 后接动词原形。Why not come and see me tomorrow?=Why dont you come and see me tomorrow?二次备课 明天来找我怎么样？consider 是动词,意为“考虑,思考”,相当于 thi

16、nk,后面可以接名词、代词、动词-ing 形式或从句。Were considering moving to Seattle.我们考虑搬往西雅图。consider 后面还可以接“特殊疑问词+动词不定式”结构。I am considering what to do next.我正在考虑下一步该做什么。consider 还可以意为“认为”,常用于“be considered (as/to be)+名词”或“be considered(to be)+形容 词”结构中,意为“被认为是(的)”。Tom is considered(as/to be)a bad student.汤姆被认为是一名坏学生。Jea

17、n considered herself(to be)very lucky.琼认为自己非常幸运。consider 用于被动语态,后面还可以接动词不定式,意为“被认为”。Mary is generally considered to work hardest.大家公认玛丽工作最努力。consider 的名词形式为 consideration,意为“考虑”。step 3.Lets extend and improve.A:Where would you like to go,Kathy?B:Id like to visit Kunming.A:Isn t it supposed to be ver

18、y hot?B:Yes,it is.I m only going to pack light clothes.Kunming is also beautiful,and it has lots of wonderful sights.Step 4.Lets practice and improve.1.The supermarket is near my home,so its _(方便的)for me to go shopping.2.There is an _(地下的)supermarket in our neighborhood.3.He told a very _(生动的)story

19、about his life in America.4.The woman is ill,so she can only do some _(轻的)work.5.Notre Dame Cathedral is one of the most famous _(教堂)in the world.Step 5.Lets sum up.板书设计 教学反思 20162017 学年度第一学期 学科：九年级英语 教研组长审批：周次：分数：课题：Unit7 Where would you like to visit?Section B 1a-1c (period 5)序号 备课组 Grade 8 执笔人 授课

20、时间 2016 年 月 日 教 学 目 标（1）Train students to talk about places they would like to visit with the target language（2）Train students to describe vacations with different adjectives（3）Train students listening skill 重 点 Describe vacations with different adjectives 难 点 Talk about different places with the ta

21、rget language 教学方法 教具 教学过程 Step 1.1.Check the new words.I hope to visit places where:the people are friendly.the food is delicious.the weather is nice.it has a long history.there is much to do.there are many places of interest.Step2.Learn and talk.A woman is travelling in a warm place.A girl is watc

22、hing a great whale in the sea.Many kids are playing happily.A:WhLearn and talk.ere would you like to go?B:Id like to go somewhere warm.A:What else can you tell me?B:I dont want Step 3.Lets extend and improve.What else can you tell me?形容词 else 修饰 what 作后置定语。二次备课 else 与 other 的区别：else 与 other 都可作形容词,e

23、lse 只用于修饰不定代词、疑问代词和疑问副词，并且必须要位于这些修饰词之 后，作后置定语；而 other 用来修饰名词，其位置与 else 正好相反，它位于被修饰的名词之前。What else could I say?我还有什么可说的？There must be somebody else in the classroom.教室里肯定还有别的人。I remember I have read the story in other books.我记得我在别的书上看过这个故事。Step 4.Lets practice and improve.1.We havent _ where to go on

24、 holiday yet.2.The girl _ to go to a famous university in Beijing in the future.3.I have to _ by myself at noon because my parents arent at home.4.You can find a beautiful park in the _ part of the city.连词成句。1.go,want,where,tomorrow,do,you,else,to _?2.milk,with,we,the,provided,children _.3.how far,i

25、t,from,dont,I,mind,is,here _.4.me,suggestions,could,you,give,some _?Step 5.Lets sum up.板书设计 教学反思 20162017 学年度第一学期 学科：九年级英语 教研组长审批：周次：分数：课题：Unit 7 Where would you like to visit?Section B 3a-4(period 6)序号 备课组 Grade 8 执笔人 Zhai Haiyan 授课时间 2012 年 月 日 教 学 目 标（1）Train students to talk about places they wo

26、uld like to visit with the target language（2）Train students to describe vacations with different adjectives（3）Train students listening skill 重 Describe vacations with different adjectives 点 难 点 Talk about different places with the target language 教学方法 教具 教学过程 Step 1.1.Check the new words.Ace Travel

27、Eastern adj provide v.firm n.spot n.Confucius Where would you like to travel?Do you like to travel alone or with others?Why?What do you think about a trip?Step2.Learn and talk.1.The person has a lot of money to spend on the vacation._ 2.The person wants to relax and do nothing on vacation._ 3.The pe

28、rson is a man._ 4.The person has children._ 5.The person likes to swim._ 6.The person wants to go to another country._ 1.Who will the author travel with?2.When do they want to take a trip?3.What place would they like to travel?Step 3.Lets extend and improve.Imagine you work for Ace Travel Agency.Wri

29、te an e-mail message to S.T.Zhang.Tell where you think he or she should go on vacation.Step 4.Lets practice and improve.Complete the survey using words from the box and any other words.Then survey three students.Agree on the best place to go.Id like to go to Qufu.B:Why go to Qufu?A:Confucius was bor

30、n there.Its very educational.Step 5.Lets sum up.二次备课 板 书设计 教学反思 驻马店市第十三中学 中 2016-2017 学年度第一学期 学科：九年级英语 教研组长审批：周次：分数：课题：Unit 7 Where would you like to visit?Section A 3a-4 (period 4)序号 备课组 Grade 8 执笔人 Zhai Haiyan 授课时间 2012 年 月 日 教 学 目 标（1）Train students to talk about places they would like to visit w

31、ith the target language（2）Train students to describe vacations with different adjectives（3）Train students listening skill 重 点 Describe vacations with different adjectives 难 点 Talk about different places with the target language 教学方法 教具 教学过程 Step 1.1.Check the new words.Step2.Learn and talk.For your

32、next vacation,why not consider _ Paris?Paris is the _of France,and is one of the liveliest _in Europe.It doesnt have any beaches or mountains,but there are _many things to do there.For example,it has some fantastic sights,_ the Eiffel Tower and Notre Dame cathedral,one of the most _churches in the w

33、orld.Traveling around Paris by taxi can_ a lot of money,but its usually quite convenient to _ the underground train to most places.In general,though,France is _an expensive place.One thing that is not expensive in France,however,is the _.Most people in France have learned _.But many people dont like

34、 to speak English,_ in Paris.So unless you speak French yourself,its _to travel with someone who can translate things for you.二次备课 Step 3.Lets extend and improve.Sample conversation 1:A:Where would you like to go,Kathy?B:Id like to visit Hong Kong.A:Isnt it supposed to be very crowded?B:Yes,it is.Bu

35、t Hong Kong is also very interesting and it offers us a lot of entertainments.Sample conversation 2:A:Where would you like to go,Kathy?B:Id like to visit Mexico City.A:Isnt it supposed to be very relaxing?B:Yes,it is.But Mexico city is also exciting.We have a lot of things to do.Step 4.Lets practice

36、 and improve.consider 是动词，意为“仔细考虑，深思熟虑”，后面可接名词、从句、副词，接动词时要用 v-ing 形式。e.g.We considered his suggestion.我们仔细考虑了他的建议。He is considering studying abroad.他正在考虑出国留学。We considered how we should help them.我们仔细考虑应该如何帮助他们。Consider carefully before you decide.你要慎重考虑后再决定。one of+最高级+名词复数,意为“最的之一”。So unless you speak French yourself,its best to travel with someone who can translate things for you.所以除非你本人说法语,最好和一个 能替你翻译法语的人一起来巴黎旅游。unless 除非,引导条件状语从句。比“ifnot”略微正式。Step 5.Lets sum up.板书设计 教学反思