【教学目标】知识目标:⑴ 理解函数的单调性与奇偶性的概念;⑵ 会借助于函数图像讨论函数的单调性;⑶理解具有奇偶性的函数的图像特征,会判断简单函数的奇偶性.能力目标:⑴ 通过利用函数图像研究函数性质,培养学生的观察能力;⑵ 通过函数奇偶性的判断,培养学生的数学思维能力.【教学重点】⑴ 函数单调性与奇偶性的概念及其图像特征;⑵ 简单函数奇偶性的判定.【教学难点】函数奇偶性的判断.(*函数单调性的判断)【教学设计】(1)用学生熟悉的主题活动将所学的知识有机的整合在一起;(2)引导学生去感知数学的数形结合思想.通过图形认识特征,由此定义性质,再利用图形(或定义)进行性质的判断;(3)在问题的思考、交流、解决中培养和发展学生的思维能力.【教学备品】教学课件.【课时安排】3课时.(90分钟)【教学过程】
一、教学目标1.初步掌握“两边成比例且夹角相等的两个三角形相似”的判定方法.2.经历两个三角形相似的探索过程,体验用类比、实验操作、分析归纳得出数学结论的过程;通过画图、度量等操作,培养学生获得数学猜想的经验,激发学生探索知识的兴趣,体验数学活动充满着探索性和创造性.3.能够运用三角形相似的条件解决简单的问题. 二、重点、难点1. 重点:掌握判定方法,会运用判定方法判定两个三角形相似.2. 难点:(1)三角形相似的条件归纳、证明;(2)会准确的运用两个三角形相似的条件来判定三角形是否相似.3. 难点的突破方法判定方法2一定要注意区别“夹角相等” 的条件,如果对应相等的角不是两条边的夹角,这两个三角形不一定相似,课堂练习2就是通过让学生联想、类比全等三角形中SSA条件下三角形的不确定性,来达到加深理解判定方法2的条件的目的的.
1、通过同位之间互说座位位置,检测知识目标2、3的达成效果。2、通过导学案上的探究一,检测知识目标2、3的达成效果。 3、通过探究二,检测知识目标1、3的达成效果。 4、通过课堂反馈,检测总体教学目标的达成效果。本节课遵循分层施教的原则,以适应不同学生的发展与提高,针对学生回答问题本着多鼓励、少批评的原则,具体从以下几方面进行评价:1、通过学生独立思考、参与小组交流和班级集体展示,教师课堂观察学生的表现,了解学生对知识的理解和掌握情况。教师进行适时的反应评价,同时促进学生的自评与互评。2、通过设计课堂互说座位、探究一、二及达标检测题,检测学习目标达成情况,同时有利于学生完成对自己的评价。3.通过课后作业,了解学生对本课时知识的掌握情况,同时又能检测学生分析解决问题的方法和思路,完成教学反馈评价。
五、布置作业新闻是我们了解社会、了解世界的窗口,每天都有各种各样的新闻发生。虽然新闻写作活动已经结束,但是听新闻、看新闻的活动才刚刚启幕。学了新闻写作的方法,我们再去听新闻、看新闻,就更有针对性,更能了解作者的写作意图。今天的作业比较特殊,是一个长期的作业,即希望同学们能够每天坚持至少听新闻、看新闻十分钟。结束语:同学们,明代思想家顾宪成有名联:“风声雨声读书声声声入耳;家事国事天下事事事关心。”“新闻每天发生,视角各有不同。”网络时代,我们更应该走向更广阔的世界,用一双新闻眼,发现生活中的新闻事件,传播正能量的新闻事实。这是我们的义务,也是我们光荣的责任。【设计意图】写作新闻是提升综合素质的绝佳途径之一,它让我们紧贴时代脉搏,既开阔了视野,又锻炼了思辨能力,还可以学到各种科学新知、流行文化。在学生了解了新闻写作的基本方法后,向他们提出听新闻、看新闻的要求,旨在培养他们关心时事的习惯,为他们的素养提升奠基。
我认为这首诗,一共三节,每节句数、字数相当,结构工整,符合建筑美的特点,同时也使诗歌具有了节奏感;另外这首诗音韵和谐,朗朗上口。我认为这首诗相同句式回环往复,给人留下深刻印象。我认为此诗语言犹如清水出芙蓉,清丽淡雅,营造了唯美纯净的世界。…………师:节奏把握这一技巧相对比较简单,大家的创作和点评都很有水准,很好。希望大家在以后课余的诗歌创作中能兼顾到我们现在所谈的技巧。【设计意图】讲诗歌的创作技巧,既要讲出最关键的技巧,也要结合实例,让讲解深入浅出,让学生在理解的同时加以训练,使学生能够加深对知识点的理解。三、课内演练,巩固技法 学习本节课的技法之后,请大家写一首诗或一个诗歌片段,要求运用本节课所讲的诗歌写作技巧。(学生思考创作并展示)
例如《你是山间的清泉》《你是天空的雄鹰》《你是三春晖》《你是燃烧的红烛》等。先想好歌颂的对象,再展开联想、想象,结合事物的特点,融入自己的情感。如要写“母亲”,想想由母亲的特质可以联想到什么具体形象,如从母亲的勤劳想到老黄牛,从母亲对孩子无私的爱和付出联想到阳光、雨露、蜡烛等。 范文引路:五、课后巩固,布置作业(福建漳州)题目:守护 (将题目补充完整,然后作文)要求:(1)文体不限,字数不少于600字(诗歌不少于30行)。(2)不得出现真实人名、校名。(3)字迹工整,卷面整洁。 写作点拨:预设:本题是半命题作文题,题目“守护”是一个动词后面可以跟宾主,如“快乐”“向往”“妈妈”“歌声”等,或抽象或具体,都可以,还可以拟题“守护者”等。“守护”分为几个层面:谁守护?守护什么?怎样守护?守护结果如何?如此等等。可以抓住其中一个层面,写叙事诗、抒情诗、论辩色彩浓郁的诗等。从题目要求看,诗歌不少于30行,这么长的诗歌适合分为几个,通过几个片段、镜头、故事、感想等来表现主题。
讨论喜欢的影视类型及理由:在看过一部影视作品后,大家总是喜欢在一起谈论影视的主要内容、主要情节、主要演员主题歌曲、主题音乐等,互相介绍自己对该影视的看法。教师可以组织一次活动,分组讨论学生喜欢看什么类型的电影,并说明喜欢的理由。运用I like…I don’t like…Because it is…等语言结构;然后每个组选派一名代表向全班学生阐述本组组员喜欢观看的电影类型;最后汇总,总结出全班同学最喜欢观看哪一种类型的电影。如果有可能,根据学生的选择放一部(一段)这种类型的影视节目。通过学生的讨论、调查,使他们在完成任务的过程中学会询问和陈述自己或别人在影视方面的喜好及理由,更好地巩固所学内容。Self Check教学内容Self Check(教材P58)教学目标知识与能力复习词汇go,movie,action,comedy,documentary,thriller,and,but,scary,funny, sad,exciting;引导学生复习、巩固“制订计划和打算并谈论喜好和偏爱”的目标语言。
1. First, ... then, ... next, ... finally, ...首先,……然后,……接着,……最后,……这是英语中表达做某事的步骤的一种说法。如果步骤较多,还可以说:first-next-after that-later on-finally/at last通常你会听到说英语国家的人在说 first, next, then, finally 和后面的内容时,他们会做一些停顿。这样就能提前告诉听者接下来讲的是一系列的步骤。这一点在朗读和听力中应特别注意。2. how many, how much均为疑问词,同是“多少”,但用法不同。请看:how many修饰可数名词复数,how much修饰不可数名词。但在用法上,同学们常犯如下错误:1) [误] How many are there bananas on the table?[正] How many bananas are there on the table?[析] how many, how much 中的many,much是形容词,常修饰名词作定语,故后面跟名词。2) [误]How much tea are there on the table?[正]How much tea is there on the table?[析] how much修饰不可数名词时,谓语动词用单数。how many与how much的区别可简记为:前how many:问“多少”,复数名词后面跑;how much问“多少”,不可数名词单数好。前者答语用基数词,后者答语用数量关系。
She shouldn’t go to the party tonight.Step7. TaskT: You know, there are lots of problems in our life. If you are a doctor, please tell us how to solve the problem. I will divide you into 9 groups. Please work in groups. And then choose one of you to report your ideas.The following are the problems:I have a toothache.I am hungry. I have a sore throat.I am stressed out. I have a sore back.I am tired. I can’t sleep.I have a cold. I have a headache.Report: If you have a headache, you should go to bed early. You should see the doctor. You should eat some medicine. You shouldn’t wash your face with cold water.You shouldn’t sleep late.You shouldn’t swim.…..T encourages the students to give advice as much as possible.Homework:1. Chose one of the problems, and write down your advice2. Copy the new words这一步是用于热身的,同时也可以让他们复习一部分的表示人体部位的单词,扩充知识.学习语言的过程也是一个不断积累的过程,复习旧知识,增添新知识.通过小游戏,强化学生对Does she/he have…这个句子的运用能力.通过复习,自然的引到下面新知识的学习。充分利用表格,由句子到对话,再到文章,让学生循序渐进. 提高学生的综合语言运用能力,运用以前学过的知识来解决身边的问题.Period 5 (Section B 3a—3c, selfcheck)教学内容与分析:
本单元主要是学习情态动词can的肯定句、否定句、一般疑问句,肯定与否定回答,以及特殊疑问句的构成和用法;复习what弓!导的特殊疑问句。本单元主要围绕“加人俱乐部,谈论自己的能力”这一话题,设计了三个任务型活动:任务一是:自己的才艺表演,学习情态动词can的用法;任务二是:自己建立俱乐部,运用情态动词can谈论自己在某一方面的能力、喜好和意愿;任务三是:我能成功,主要是复习巩固谈论各自的爱好和特长的方法。单元知识系统(树)Can you/he/she/you dance? 一Yes,I/he/she/we can./No,I/he/she/we can’t.Can Bill play the guitar?一Yes,he can,but he can’t sing.单元总体目标通过学习情态动词can的用法,使学生能够表达自己在某一方面所具备的才能;能够谈论自己的喜好与意愿;能够为自己成立的各种俱乐部制作海报;会写招聘广告。单元重难点一览重点 难点I.复习词汇:can,play,want2.词汇:guitar, dance, swim,sing, chess, speak, drum,trumpet,violin,play the guitar3.句型:Can you/he/she/you dance?Yes,I/he/she/we can./No,I/he/she/we can’t.Can Bill play the guitar?
在这一单元中,学生要学会就有关人与物之间所属关系进行问答的句子。本单元大量引入有关运动的名词,要求学生彼此询问有无此类物品,并做出相应的回答。 同时学习表示建议的句型Let’s运动的形容词。 本单元所选用的话题来自学生所喜欢的生活片段,在教学中生生交流、师生交流会更融洽,会促进师生彼此间的了解,成功的教学还会让部分学生养成良好的运动习惯和收藏习惯。 教学目标 1) 语言知识:A.在询问对方是否有某物的对话中学会使用do和does引导的一般疑问句; B. 学会使用描述性的形容词来评价事物; C. 学会在对话中使用名词复数; D. 学会用祈使句来向对方提出建议. 2) 语言技能:A. 学会用祈使句询问某人是否有某物; B. 学会向他人提出建议的句子. 3) 学习策略:A.通过与同学讨论,做出猜测;
个性练习设计 阅读广告:在日常生活中,人们去买东西之前,一般要阅读广告,从广告中获取该商品的一些有用信息,包括价格、性能等。所以给学生提供有些商品的广告或让学生去商店去阅读一些商品的广告,从中获取商品的价格,即可以锻炼学生的阅读能力,又能提高实践能力。 Self Check 教学内容 Self Check(教材P42) 教学目标 知识与能力 复习词汇pant,sock,T-shirt,sweater,shoes,color,black,white,red,green,blue,big,short,long,数字10--31; 学习词汇Zig Zag,clothes,shop,yellow,ask,which;学会谈论服装的价格、颜色、大小和长短;学会填写价格标签。 过程与方法 运用Summarizing和Classifying的学习策略。在复习教学中,运用听写、绘画、互相询问调查与检测等手段,促使学生不断地使用所学内容,从而提高他们灵活运用知识的能力。 情感态度价值观 该部分学习内容主要是复习谈论服装的价格和颜色以及对服装的喜好,能引起学生的共鸣;通过购物的对话练习教学生学会购物时使用的礼貌用语和如何感谢人。
知识与能力复习词汇time,morning,breakfast,get up,g0 t0 bed,homework,clock,afternoon,lunch,run,watch TV,evening,dinner,eat,usually,o’clock,thirty,fifteen,take a shower,go t0 school等;引导学生复习、巩固“询问和谈论时间”的目标语言并运用所学知识安排自己的学习和课外活动。过程与方法运用Summarizing,Classifying和Comparing的学习策略。在复习教学中,运用听写、提问、对话演练与调查活动,促使学生不断地使用所学内容,从而提高他们灵活运用知识的能力。情感态度价值观本部分的主要内容是复习“日常作息时间”的询问和表达。通过互相询问或谈论自己或对方的作息时间安排和活动计划,培养学生良好的作息习惯和守时习惯。教学重、难点及教学突破重点复习词汇time,morning,breakfast,get up,g0 to bed,homework,clock,afternoon,lunch,run,watch TV,evening,dinner,eat,usually,o’clock,thirty,fifteen,take a shower,go to school等;引导学生复习、巩固“询问和谈论时间”的目标语言。
一、知识和能力目标本单元的核心教学内容是“认物”。用英语确认周围的常见事物比较符合英语初学者的实际情况。通过本单元教学,使学生运用所学句型,去熟悉周围事物的名称;教学生学会在实际生活中如何确认事物。通过辨认物体,学生学到一些生词,并巩固所学句型。二、过程和方法目标教师要尽量使学生对课文中出现的句型能够熟练上口,这样,学生才能顺利开展比较灵活的对话。教师可以用手势,表情,动作等示意,帮助学生听懂课堂教学内容,但在实际操作中应尽量避免“明知故问”的倾向,应该采用应用性原则;如:遮盖物品、显露局部、辨认物体、完形识别、图形辨认等方法。三、情感态度和价值观目标目标在学生学习过程中的作用至关重要,教师要帮助他们建立起一个切合自己实际的目标,通过渐进的学习以及一点一滴的进步,使他们逐步建立起成功感。成功越多,自信心就越强。
Step 3 (3b)First, tell the students when we talk about our future plans, we often use: I’m+verb+ing When we talk about what we must do, we use have to. Ask the students to fill in the blanks in 3b. The answers are: shopping, go to see, a test, I’m going, my family. Step 4 (3c)Let the students write an e-mail message to a friend. Say why you can’t visit next. Before the exercise, ask the students to give some possible answers and write them on the blackboard. So the students will feel easy to finish the writing exercise. After they finish it, Let them to correct it in groups first. Each group chooses theirs best one to read in front of the whole class. Step 5 ( planning a party )First read the conversation in the box together. Then ask the students to turn to page 88.Write down everything you have to do next week. Write in all the things you have to do . Ask the students to look at the list. Ask them “What day are you free?” This is when you can have your party. Step 6 (Self check 1 )Let the students to fill in the blanks with the words given. Change the forms of the words if possible. Then make their own sentences. The answers are: visit, playing, have to, study, comeStep 7 (Self check 2)Imagine you are Marie. Read the information and look at your schedule. Write replies to the invitation.
“Go for it!” is based on “Task-Based Language Teaching”. It adheres to “The authenticity principle”, “The form-function principle”, “The task dependency principle” and “The principle of learning by doing”. These principles all accord with the demands of curriculum focus.In and of Grade Seven (II), “Go for it!”, students have learned “The Simple Past Tense”. And it appears again in of Grade Eight (I). teaches students more about how to talk about events in the past. In addition, it gives affirmative and negative statements in the past tense, such as the sentence patterns “Did you see …?” “Were there …?” “Did you go …?” As the first part of Unit 8, Section A opens with a picture presenting the last school trip in the aquarium and continues with several step-by-step practice activities, which are all good for students to master “The Simple Past Tense”. Doing well in Section A will help students integrate the new target language with that in Section B. Thus, they can describe the events in the past freely and foster their own ability of reflecting and practicing. II. Teaching ObjectivesTeaching objective is the beginning and aim of teaching activities. According to the overall goal of the English elementary course--- improve students' synthetic ability of language application, which should be based on the development of students’ “Language knowledge”, “Language skills”, “Character building”, “Learning strategies” and “Cross-cultural awareness”. The teaching objectives are described as follows(I). Knowledge objectivesi. Master the simple past tense of regular and irregular verbsii. Recite the new words and expressions about the last school trip in the aquarium, including their pronunciation and intonation
一、 教学内容Section A 1a----1c二、 教学目标1.学习词汇do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, sweep the floor, clean the living room.2.句型 Could you please clean your room? Yes, sure.三、 教学准备 学生预习本单元所有的词汇多媒体课件 活动表 奖品四、 教学过程Pre-task1. Warming upEnjoy ourselves. Watch cartoon Cinderella. 看动画片段《灰姑娘》导如入本课话题和新词汇“chores”美丽善良的鬼姑娘因继母的嫉妒,每天得做所有的家务。片段的主题使学生联想到本课的话题。2. learn new words and phrasesLook! What is she / he dong? 看图学习动词词组do chores, do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, clean the living room.3. Guessing game.What is she doing ? 4. Pair work. 1a, Do you do these things at home? Write “Y” for “yes” and “N” for “no”.5. Listening . 1b , Peter’s chores or Mom’s chores?理解目标语Could you please clean your room? Yes, sure.Write “M” for Mom’s chores, “P” for Peter’s chores in the chart.6. PairworkLook at the picture,Ask your partner to do the chores that you see. 7. Interview Who is the most able at home? 1) What chores do you do at home? How often do you do the chores? Work in four, interview each of the students in the group, fill in the chart.
Step Ⅶ Role play ( Work on 1b)1. First ask two students to read the dialogue to the class.Sa: How do you get to school?Sb: Well, I ride my bike to the subway station. Then I take the subway.2. Now work with a partner.Suppose you use two kinds of transportation to get to school \Hangzhou\Beijing... (bus, train, subway, walking, bike, etc.) Tell how you get there. You may use the phrases in 1a.3. Then ask different pairs of students to present their conversations to the class.Step ⅧListening1. Work on 2a(1) First ask students to read the list of information that Thomas wants to know.…where Nina lives.…how far from school she lives.…how long it takes to get to school.…how she gets to school.…what she thinks of the transportation.(2) Tell students what transportation and bus stop mean.bus stop 汽车站 transportation n. 运送;运输Then tell students we'll hear a recording. Please put a checkmark in front of each thing that Thomas wants to know.(3) Now play the recording for students.( Have students pay attention to the sample answer.) (4) Then correct the answers.
教学目标1.知识目标:(1)学习What are you going to be when you grow up?/How are you going to do that?句式。(2)学会用英语描述有关职业的表达法。2.能力目标:(1)能够谈论为实现理想所做出的打算和安排。(2)能够谈论未来自己与他人理想的职业及原因。(3)能用英语描述课余时间的活动安排,最终具备表达综合信息的能力。3.情感目标:新学期到来之际,让他们在学习、体育、饮食、特长、读书等方面制定计划,教育学生合理安排自己的课外生活,思考自己的理想职业及适合自己的职业。教学重点、难点本单元的重点为“be going to”表将来,want to be, what,where, when,how引导的特殊疑问句。难点是语言目标的实现。教材分析本单元以I am going to be a basketball player为话题,共设计了三部分的内容:一、Section A该部分有4个模块。第一模块围绕Do you think these jobs are interesting?这一话题展开思维(1a)、听力(1b)、口语(1c)训练;
1 交通工具的比较此活动为小组活动。学生通过讨论找出到达某一城市可乘坐的各种交通工具,并选择最佳出行方式。Teacher:We’re going to Shanghai. How many ways can we use to get there? Yes, there are four ways: by bus, by plane, by train, by ship. Please discuss how you are going to get there.操作建议:(1)学生以小组为单位展开活动,谈论本组所选择的交通工具。(2)各组选代表向全班汇报,阐述本组所选择的交通工具的利和弊。完成任务所需要的语言结构:We can go there by ship. It’s more comfortable and cheaper than any other transportation.We can go there by bus. It’s cheaper but it takes longer time.2 哪个城市更合适?此活动具有挑战性。假设中国要举行2014年世界杯足球赛,分别从历史,人文,天气等方面对各城市(北京,大连,上海,昆明)进行比较,选择最佳举办城市。T: Imagine China is holding the 2014 FIFA World Cup. Which city do you think is the best for the World Cup, Beijing, Dalian, Shanghai or Kunming? Let’s work in groups. If you choose Beijing, please join the Team Red. If you chose Dalian, please join the Team White. If you choose Shanghai, please join the Team Blue. If you choose Kunming, please join the Team Green. Please show us its advantages. Then let’s see which team will win.