2022年模板范文初中八年级 数学教案模板(汇总5篇) .doc

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1、YOUR LOGO原 创 文 档 请 勿 盗 版初中八年级 数学教案模板（共5篇） 第1篇：初中八级数学试讲教案初中八年级数学试讲教案模板初中八年级数学试讲教案模板一简单的平移作图一、教学目标：1、知识目标：能熟练了解简单图形的移动规律；能按要求作出简单平面图形平移后的图形；能够探索图形之间的平移关系;2、能力目标：；在实践操作过程中；逐步探索图形之间的平移关系;；对组合图形要找到一次或者几次“基本图案”；并能通过对“基本图案”的平移；复制所求的图形;3、情感目标：经历对图形进行观察、分析、欣赏和动手操作、画图等过程；发展初步的审美能力；增强对图形欣赏的意识；二、着重和难点：着重：图形连续变更

2、的特点;难点：图形的划分；三、教学方法：讲练结合；使用多媒体课件辅助教学；八年级数学上册教案四、教具准备：多媒体、磁性板；若干小正六边形；“工”字的砖；组合图形；五、教学设计：教师活动学生活动设计意图创设情景；探索新知：(演示课件)：教材上小狗的图案；提问：(1)这次图案有什么特点?(2)它可以通过什么“基本图案”；经过怎样的平移而形成?(3)在平移过程中；“基本图案”的大小、形状、位置是否发生了变更?小组讨论；派谨代表回答；(答案可以多种)让学生充分讨论；归纳总结；老师给予适当的指导；并对每种答案都要肯定；看磁性黑板；展示教材64页图3-9；提问：左图是一次正六边形；它经过怎样的平移能得到右

3、图?谁到黑板做做看?展示教材64页3-10；提问：左图是一种“工”字形砖；右图是怎样通过左图得到的?小组讨论；派谨代表到台上给大家讲解；气氛要热烈；充分调动学生的积极性；发掘他们的要象力；(演示课件)教材65页图3-11；提问：这次图可以看做是什么“基本图案”通过平移得到的?畅所欲言；互相弥补；课堂小结：在教师的引导下学生总结本节课的主要内容；并启发学生在我们周围寻找平移的例子；课堂练习：(演示课件)教材65页“随堂练习”；小组讨论；小组讨论完成；例子一定要和大家接触紧密、典型；答案不惟一；对于每种答案；教师都要给予充分的肯定；六、教学反思：本节的内容并不是很复杂；借助多媒体进行直观、形象；内

4、容贴近生活；学生兴致较高；课堂气氛活跃；参加意识较强；学生一般都能在教师的指导下了解；教学过程中渗透数学美学思要；推动学生综合素质的提高了；初中八年级数学试讲教案模板二生活中的旋转教学目标一、教学知识点：1.旋转的定义.2.旋转的基天性质.二、能力训练要求：1.通过具体实例认识旋转；理解旋转的基本涵义.2.探索旋转的基天性质；理解旋转前后两次图形对应点到旋转中心的距离相等；对应点和旋转中心的连线所成的角彼此相等的性质.三、情感和价值观要求1.经历对生活中和旋转现象相关的图形进行观察、分析、欣赏以及动手操作、画图等过程；了解相关画图的操作技能；发展初步的审美能力；增强对图形欣赏的意识.2.通过学

5、习使学生能用数学的眼光看待生活中的相关问题；进一步发展学生的数学观.教学着重：旋转的基天性质.教学难点：探索旋转的基天性质.教学方法：1、遵循学生是学习的主人的原则；在为学生创造大量实例的基础上；引导学生自主思考、交流、讨论、归纳、学习；2、采取多媒体课件辅助教学；教学过程：八年级数学上册教案一.巧设情景问题；引入课题日常生活中；我们经常见到以下情景(出示图示：钟表、汽车方向盘、辘轳或电脑演示：钟表指针的转动、汽车方向盘的转动、辘轳打水的情景).(1)上面情景中的转动现象；有什么共同特征?(2)钟表的指针、钟摆在转动过程中；其形状、大小、位置是否发生改变?汽车方向盘的转动呢?1.在这些转动的现

6、象中；它们都是绕着一次点转动的.2.每次物体的转动都是向同一次方向转动.3.钟表的指针、钟摆在转动过程中；它的形状、大小没有变更；只是它的位置有所改变.4.汽车的方向盘在转动过程中；同样它的形状、大小没有改变；方向盘上的每点的位置所变更.同学们观察得很仔细；我们把这样的转动叫旋转(circumrotate)；这节课我们就来探讨生活中的旋转.二.讲授新课在数学中；如何定义旋转呢?在平面内；将一次图形绕着一次定点沿某次方向转动一次角度；这样的图形运动称为旋转(circumrotate).这次定点称为旋转中心；转动的角称为旋转角.注意：“将一次图形绕一次定点沿某次方向转动一次角度”意味着图形上的每次

7、点同时都按相同的方式转动相同的角度.在物体绕着一次定点转动时；它的形状和大小不变.因此；旋转具有不改变图形的大小和形状的特征.议一议：(课本67页)答：(1)旋转中心是o点；旋转角是aod.旋转角还可以是boe.(2)四边形aobc绕o点旋转到四边形doef的位置.这时点a旋转到点d的位置；点b旋转到点e的位置.(3)可以把oa看作钟表的指针；它oa的位置旋转到od的位置；指针的是非、形状没有变更；所以oa和od是相等的.同样；线段ob和oe是相等的.(4)因为四边形aobc绕o点旋转到四边形doef的位置；在旋转的过程中；图形上的每次点同时都按相同的方向旋转相同的角度；所以aod和boe是相

8、等的.(4)也可以这样理解：因为四边形aobc绕o点旋转到四边形doef的位置；所以aob和doe是相等的；又因为bod是公共角；所以；aod和boe是相等的.看上图；四边形doef是由四边形aobc绕o点旋转得到的；经过旋转；点a移动到点d的位置；点b移动到点e的位置；点c移动到点f的位置；则点a和点d、点b和点e、点c和点f就是对应点.从刚才大家得出的结论中；能否总结出旋转的性质呢?答：因为o是旋转中心；点a和点d是对应点；点b和点e是对应点；且oa=od；ob=oe；所以可以知道：对应点和旋转中心所连的线段的长度是相等的.因为点a和点d、点b和点e是对应点；且aod=boe；所以由此可以

9、知道：对应点和旋转中心的连线所成的角是互相相等的.由此我们得到了旋转的基天性质：经过旋转；图形上的每一点都绕旋转中心沿相同方向转动了相同的角度.任意一对对应点和旋转中心的连线所成的角都是旋转角；旋转角彼此相等.对应点到旋转中心的距离相等.例1(课本68页例1)师生共析经演示(钟表实物或教具)可以知道；分针是绕着名义盘的中心位置；即钟表的轴心旋转的；它旋转一周时的度数是360一周需要60分；因此每分钟分针所转过的度数是6；这样20分时；分针逆转的角度即可求出.解：(见课本68页)书上68页做一做三.课堂练习课本p69随堂练习.1.解：旋转5次得到；旋转的角度分别等于60、120、180、240、

10、300.四.课时小结五.课后作业：课本p69习题3.4 1、2、3.六.活动和探索1.分析图中的旋转现象.过程：让学生画图、找规律；也可让他们通过剪切；找到旋转规律.结果：旋转现象为：整次图形可以看做是图形的八分之一(一组大小不等的三次“角”)绕中心位置；依照同一方向连续旋转45、90、135、180、225、270、315前后的图形共同组成的.整次图形也可以看做是图形的四分之一(两组相邻的“角”)绕中心位置连续旋转90、180、270前后的图形共同组成的.整次图形还可以看做是图形的二分之一(四组相邻的“角”)绕中心位置旋转180前后的图形共同组成的.2.图中是否存在这样的两次三角形；其中一次

11、是另一次通过旋转得到的?过程：同样让学生在画图过程中体会图形中每次三角形之间的关系;或让学生仔细观察图形；分析图形；找出关系.结果：图中存在这样的三角形；其中一次是另一次通过旋转得到的.整次图形可以看做图形的四分之一(一组“楼梯”)绕中心连续旋转90、180、270.前后的图形共同组成的.整次图形也可以看做图形的二分之一(两组“楼梯”)绕中心位置旋转180前后的图形共同组成的.板书设计：略教学反思：本节课仍然是图形的基本变换；借助多媒体教学直观生动形象；学生一般都能在教师的指导下了解；也在培养学生的空间要象能力；初中八年级数学试讲教案模板三简单的旋转作图课 题3.4 简单的旋转作图一.教学目标

12、(一)教学知识点1.简单平面图形旋转后的图形的作法.2.确定一次三角形旋转后的位置的条件.(二)能力训练要求1.经历对具有旋转特征的图形进行观察、分析、画图和动手操作等过程；了解画图技能.初二数学上册教案2.能够按要求作出简单平面图形旋转后的图形.(三)情感和价值观要求1.通过画图；进一步培养学生的动手操作能力.2.在对具有旋转特征的图形进行观察、分析、画图过程中；进一步发展学生的审美观念.二.教学着重简单平面图形旋转后的图形的作法.三.教学难点简单平面图形旋转后的图形的作法.第2篇：八级上册初中数学教案封面初中数学教案八年级（上册）本文档为八年级上册数学教案；对教师的工作有借鉴意义；便于学习

13、和使用；下载后可查阅详细内容；教师：先生第二中学 第二中学教师：先生本文档为八年级上册数学教案；对教师的工作有借鉴意义；便于学习和使用；下载后可查阅详细内容；第3篇：初中八级英语教案初中八年级英语教案【篇1：2013年八年级上英语教案】unit 1where did you go on vacation?new york city; central park；exam；were；rainy； delicious；expensive；inexpensivecrowdedflew；kite；later；felt；little corner discu；etc where did you go on

14、 vacation? i went to the mountainsdid she go to central park？yes；she didno she didnt语法：一般过去时特殊疑问句、一般疑问句及肯、否定回答；根据初中英语新课程尺度和本科教材内容；我确定了以下目标： 1 master the vocabulary 2master the key patterns:where did you go on vacation? i went to the mountains ? did she go to central park？yes；she didno she didnt单元教学重

15、难点1vocabulary and expreions2.grammar focus：where did you go onvacation？i went to the mountains.did she go on central park？yes she didno she didnt use the past tense to talk about activities that happened in the past in english with the following sentences：where did you go on vacation? did you go to?

16、？yes.? /no；?such as; go abroad go hiking go climbing summer camps and so on接近学生的生活；they are all interested in talking about it.section a中1a.1b.1c.2a.2b.2c.grammar focus教学目标知识和能力1.match the vocabulary：new york city；central park；exam 2.master and use：where did you/ they /he / she go；vacation? i / they

17、 /he /she went to the mountainsnew york citybeachsummer camp did you go to the beach？ yes；i didno i didnt过程和方法通过例子who went to the movies last saturday?引出动词go的过去式went；从而引出一般过去时态；教学重、难点及教学突破 着重l.the vocabulary：new york city central pads；exam 2.language：where did you/they/he/she go on vacation? i/they/

18、he/she went to the mountains/ new york cit y/ beach /summer campdid you go to the beach? yes；i did.no i didnt.难点use the language to talk about past eventslanguage: where did you go on vacation?及答语的学习 step 1 greetingsgood morning/afternoon everybody step 2 free talkask the students to talkabout what

19、they did last weekends step 3 presentation 1 finish 1aask questions about what students did last saturday（1）who went to the movies last saturday?（point to one student who raises his or her hand.） sara went to the movies last saturday.（repeatwrite this sentence on the board.underline the word went）(2

20、) ask：who visited a friend last saturday？（point to one student who raises his or her hand） carlos visited a friend last saturday（repeatwrite this sentence on the board.underline the word visited）2point to the words went and visited in the sentences on the boardsay；we use these words to talk about th

21、ings that happened in the past. （write these pairs of words on the board：go-went visit -visited）ask: can you point out the words that talk about the past? this activity introduces the key vocabulary students raise their handsand give the right answer: i did.students raise their hands to answer. read

22、加强记忆point to went and visited step 4 practice 1a1focus attention on the pictureask: what at can you see？say each picture shows something a person did in the pastname each activity and ask students to repeat；went to the mountains；went to new york city went to summer camp；visited my uncle；stayed at ho

23、me；went to the beach；visited museums.2point to the numbered list of activitiessay each one again and ask the students to repeat3now please match each phrase with one of the picturessay；write the letter of each picture next to the name of the activity 4check the answers. answers：1e 2b 3d 4.c 5a 6f 7.

24、g read after the teacher aloud to learn the new phrases read after the teacher； do it and then discu the keys in pairs step 5 listening1b1point to the picture. on the screensay look at picture a；where did tia go on vacation? yes；she went to the mountainsask；what did the person do in each scene? 2pla

25、y the recording the first time. 3play the recording a second time. say；there are three conversations.the people talk about what they did on vacationlisten to the recording and write numbers of the names in the right boxes in the picture.please write only 5 numbers.point out thesample answer next to

26、the picture showing went to the mountain.4correct the answers answers：（1) went to the mountains (2)visited my uncle (3）stayed at home(4) went to new york city(5)went to summer camp practice the dialogue in pairseg. -where did the boy go on vacation? -he went to new york city only listen.listen and n

27、umber the pictures(1-5)and then discu in pairs. at last raise their hands to tell the result read it loudly. play the tape.write play-played visit -visited on the boardsay；we studied the pronunciation of these - ed endings in unit 5. they are both spelled - ed；but we pronounce one /d/ and the other

28、/id/ask students to repeat these pairs：playplayed；visit一visited listen carefully and learn the pronunciation of-ed. step6 summary1.ask the to summarize all the key words and sentences in this period2.get the to ask any questions they feel puzzled step7 homework1.learn the target languages by heart 2

29、.preview section b教后反思unit 2how often do you exercise? i.teaching article: unit one ii.teaching aims and demands(教学目的和要求): what do you usually do on weekends? i sometimes go to the beach.how often do you eat vegetables? every day.most of the students do homework every day.iii.teaching importance and

30、 diffcult(教学重难点): talk about how often you do things. the first periodi.teaching aims and demands 1.knowledge objects name of activities. aderbs of frequency.what do you usually do on weekends? i often go to the movies. 2.ability objects writing skill. listening municative competence 3.moral objectk

31、eep a diary every day in english. ii.teaching key pointswatching tv reading shoping skateboarding exercising iii.teaching difficultiesalways usually often sometimes hardly ever neverwhat does she do on weekends? she often goes to the movies. iv.teaching methodsdiscover method.listening and writing m

32、ethods；pairwork. v.teaching aidsa tape recorder.large monthly calendar showing the days of the week. a projectorvi.teaching procedures step 1 greet the clat: ill introduce myself first.ill be your english teacher this term.do you like english? i hope well get along very well.im not only your teacher

33、 but can be your friends.well be happy together.now lets begin.this cla well learn unit1.how often do you exercise? please open books at page1. step 2 section a 1afirst look at the picture.ask a few students to say what they see in the thought bubbles.each though bubble shows something a person does

34、 on weekends.then mae each activity.ask students to repeat each one. one girl is shopping. another girl is reading. this boy is watching tv.these girls are skateboarding.point out the sample answer.then ask students to list all the activities in the thought bubbles if they dont know to write the act

35、ivities use bilingual dictionaries.then ask the students who finishes first to write the answers on the board.check the answers on the board and ask students to correct their own activities. step 3display a large calendar that shows the days of the week.tell students saturday and sunday are the week

36、end.ask students to repeat weekend.then show three new words.how often 多久一次hardly adv.几乎不；几乎没有 ever adv 曾；曾经step 4 1c pairworkfirst ask two students to read the sample in speech bubbles. what do you usually do on weekends? i often go to the movies.now work with a partner.make your own conversations

37、about the people in the picture.for example.step 5 summarythis cla weve learnt some names of activities: watching tv reading skateboarding exercising shopping.and we also leant some adverbs of frequency: always usually often sometimes hardly ever never. step 6 homeworknow homework: keep a weekend da

38、iry showing what you do on weekend.you can write down they do from the time you get up until you go to sleep. step 7 blackboard design unit 1 how often do you exercise?watching tv reading skateboarding exercisingshopping what does she usually do on weekends? she often goes shopping. the second perio

39、di.teaching aims and demands 1.knowledge objects adverbs of frequency. name of activities.wh-question and answers. 2.ability objects 3.moral objectsdo more exercise and keep healthy. ii.teaching key pointsevey day once a week twice a week three times a weekonce a month twice a monthwatch tv surf the

40、 internet read english books go to the moviesiii.teaching difficultieshow often do you watch tv? -twice a week.what does he do on weekends? -he sometimes watched tv. how often does chung watch tv? -he watches tv twice a week.iv.teaching methodsdiscover method listening and reading municative qpproac

41、h. v.teaching aidsa tape recorder.some color paper for an activity. vi.teaching procedures step 1 greet the cla.step 2 learn some new words【篇2：八年级英语电子教案】unit.1where did you go on vacation?（一）目标确定的依据. 1.课程尺度相关要求.了解本单元至少42次生词；4次短语；丰富词语的积累；不懂的词语借助英汉词典或联系上下文来理解； (2)能够正确书写规则和不规则动词过去式；会使用这些过去式谈论过去的事情；(3)

42、通过大量练习；能正确使用不定代词； 2.教材分析作为本册第一单元学习内容；本单元学习是训练学生的听读技能；使其学会一般过去时的疑问句及答语；并能够在各种句式中准确熟练地使用不定代词； 3.学情分析学生在七年级的词汇、语句学习中已建立一定的过去时和不定代词的基础；对于过去式的理解及使用难度不大；但学习如何在特定语境中准确地熟练使用不定代词；正确书写不规则动词过去式；对学生有难度；教学时应反复训练；引导学生对文中反身代词的选择；反身代词和形容词的搭配；反复揣摩、体味；以突破学习难点；第一课时总第一课时备课8月20日上课8月26日 （一）学习目标1.通过认读生词表和书写练习；正确认读、书写6次生词；

43、正确读写并积累运用；2.通过听录音；正确填写表格中所缺失的语言信息；3.通过次别读、分组读、齐读等多种读书形式；练习正确、流利地朗读对话；背诵涉及重要短语的句子；（二）评价任务1.正确书写anyone anywhere wonderful few quite a few most 共6次词语；2.听力训练；通过预测、推理以及选择注意力；使学生理解听力资料文章大意和细节；从而提高了听力水平；3.能利用过去式；简单问答过去发生的事情；（三）教学过程教学环节一：检查预习；导入新课；目标1.活动一：读1a将活动和相关图片搭配；活动二：利用1a活动；1c句式；两人结对形式练习一般过去时问答过去的事情；教

44、学活动二：听力训练；活动一：听录音；将人物和活动、地点匹配；完成1b2a； 活动二：听录音；判断信息正误；完成2b图表； 教学环节三：阅读2c2d对话；说出一般过去时问答结构和不定代词的用法；活动一：读对话；学会利用一般过去时问答；活动二：读对话；说出不定代词和形容词的怎么正确搭配； 活动三：会背对话中重要短语；(四) 当堂训练测试exercises in cla单项选择或根据汉语提示完成句子；1.did you go_(有趣的地方)?2.did you do_ last month? (特殊的事情) ()3.there is _ with the watch.it works very we

45、ll. a.anything wellb.nothing wrongc.something wrongd.wrong something()4.peter has _ to do at the moment.lets give him _ to read.(something anything nothing everything)()5.i cant find _ sit on the bus.a.somewhereb.nowherec.anywhere d.everywhere6.youre sad all the afternoon.maybe you need _ like me 让你振作起来).a.everyone b.someone c.anyone d.no one()7.these books are nice.you can take _ of them. a.someone b.everyone c.anyone d.any one8.theres _ in todays newspaper.(没有新东西)()9.these questions are very difficult.i think _ can answer them.a.someone b.everyone c.anyone d.no o