Plus and minus(A)教学中的互联网搜索优秀案例.doc

全国中小学“教学中的互联网搜索”优秀教学案例评选教案设计一、教案背景1. 面向学生：中学 小学 年级：三年级2. 学科：英语3. 课题：牛津小学英语3B Unit 5 Plus and minus Part A Learn to say 4. 课时数：1课时5. 学情分析与课前准备：学情分析 Analysis o students三年级学生处于9-10岁，形象思维能力较强，乐于表现，喜欢玩游戏，能在老师的激励下用英语与别人交流。他们既有学习英语的浓厚兴趣，又有良好的记忆力与模仿力。这些为英语学习提供了良好的生理和心理条件。课前准备 Preparationsa. 上网搜索相关的数字图片。b. 制作并修改PPT。c. 要求学生复习数字1-12的音、形、义，跟磁带朗读课文，并揣摩对话的含义。二、教材分析这一单元是在第四单元的基础上，进一步学习数词。本单元的几个板块都是围绕数字展开的。Part A的教学内容是20以内数字的加、减法。Part B 围绕数字展开；在C Look and say中，教材出现了新句型How many can you see? 并复现了八个名词复数。对于这一句型仅要求学生理解，并能配合数词操练即可。三、教学目标 Teaching aims 1. 技能目标：(1) 能听懂、会说Whats plus/minus ? 及其回答Its 并能用Thats right. / Sorry. Youre wrong. / Oh, no. 作评价。(2) 能运用所学交际用语与别人交流。2. 知识目标：(1) 能听懂、会说数词13-20。(2) 能听懂、会说Whats plus/minus ? 及其回答Its 并能用Thats right. / Sorry. Youre wrong. / Oh, no. 作出评价。(3) 掌握词、句的音、形、义及用法。3. 情感、策略和文化目标：(1) 培养学生的口语交际能力。(2) 通过做游戏激发学生的学习兴趣。(3) 鼓励学生自主、合作、探究的学习行为。四、教学重、难点 重点：(1) 能听懂、会说数词 13-20。(2) 能听懂、会说Whats plus/minus ? 及其回答Its 并能用Thats right. / Sorry. Youre wrong. / Oh, no. 作出评价。难点：(1) 区分数词中-teen与-ty的读音。五、教学策略 Teaching and learning methods1. 教师讲授2. 合作学习3. 游戏教学六、教学过程Step 1 Greetings & revisionT: Good morning, boys and girls.Ss: Good morning, Miss Shen.T: How are you?Ss: Fine, thank you. And you?T: Im fine, too.T: Excuse me, * * *. Whats this/that in English?S: Its a T: I see.T: Whats this/that in/on ?S: Its a T: Thank you.T: Is this/that a watch?S: No, it isnt. Its a clock. T: Whats the time, please?Ss: Its six (oclock).T: Its time to ? (做伸懒腰动作)Ss & T: Get up.T: Whats the time?Ss: Its twelve.T: You can ? (做吃饭的动作)Ss & T: have lunch.T: Whats the time now?Ss: Its ten (oclock).T: Shall we ? (做睡觉的动作)Ss: go to bed.T: Shall we go to bed?Ss: Great!(设计意图：复习学生上学期和本学期学过的知识，帮助学生巩固已学知识；以简短的复习，打开学生的思维，起到热身作用，让学生迅速进入学习状态；营造轻松、愉悦的课堂氛围，激活学生头脑中的旧知，引出新知。)Step 2 Presentation and practice1. Lets read!6: 00 1 2 3 412: 00 5 6 7 810: 00 9 10 11 12【百度图片】数字1-12/i?ct=503316480&z=&tn=baiduimagedetail&word=%CA%FD%D7%D61-12%CD%BC%C6%ACT: Lets read them together.(设计意图：朗读1-12，既帮助学生复习、巩固所学内容，又为新数词的学习奠定基础。)2. Play a gameT: Lets play a game. There are four groups in our classroom. The students in each group put up your hands when I say “Begin!” The quickest student will get the chance to the blackboard and write the numbers I will say. If he is right, his group will get one star. The group that gets the most stars will be the winner (用中文). 板书：9 48 611 59 812 711 9T: OK. Group * is the winner. Congratulation! (clap hands) Later, we will play another game.(设计意图：为新词的出现做准备；检验学生读对所学知识的掌握情况；以游戏方式进行有利于调动学生参与课堂活动的兴趣，给学生期待。)3. CountT: Whats nine plus four? (9+4)Ss: 13.T: Yes. Its thirteen. Read after me, plus. (指“+”)Ss: plus.T: (指字母“u”)Ss: T: bus.Ss: busT: plus.Ss: plus.T: Whats nine plus and four? (9+4)Ss: Whats nine plus and four?教师指读一组T: ThirteenSs: Thirteen. Teach: thank, : girl, t toy, i: green, i:n green, -ti:n teenT: Its thirteen.Ss: Its thirteen.教师指读个别学生T: Whats nine minus four? (9+/-4)Ss: Five.T: Good. Its five. Follow me, minus.Teach: minus m mother, i knife, minusT: Boys.Ss: Minus.T: Girls.Ss: Minus.T: Together.Ss: Minus.T: Whats nine minus four? (读2遍)Ss: Whats nine minus four?指读一组T: Today, we will learn Unit 5 Plus and minus. Follow me. Unit 5 Plus and minus. (读2遍)Ss: Unit 5 Plus and minus.T: OK. Whats eight plus six?Ss: 14.T: Thats right. Its fourteen. (读2遍)Ss: Its fourteen. T: Thats right. (读2遍)Ss: Thats right.师生问答： T: Whats nine plus four? / Whats nine minus four? S: Its T: Thats right.T: OK, next one. Who can ask me (用中文)? 以类似方法教授 sixteen, seventeen, nineteen, twenty并引出Sorry. Youre wrong. / Oh, no.T: What numbers are missing? 13, 14, 16, 17, 19, Ss: 15, 18, 20Teach: fifteen, eighteen, twenty4. Lets read!(1) 13, 14, 15, 16, 17, 18, 19, 20【百度图片】/i?ct=503316480&z=&tn=baiduimagedetail&word=%CA%FD%D7%D613%CD%BC%C6%AC教师领读两遍后指读几名学生(2) thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty再次朗读T: Lets play the second game - Whats missing? The rule of the game is the same as before (用中文). (设计意图：通过游戏来强化学生对新学数词的音、形、义的掌握。同时，再次穿插游戏，激发学生的学习兴趣和积极性，缓解学生口头朗读的疲劳。)5. Practice in pairs A: Whats plus/minus ? B: Its A: Thats right. Sorry. Youre wrong. Its / Oh, no. Its (先由教师与个别学生示范，再由学生两两操练，教师巡视并指导，然后请几组学生对话)(设计意图：通过前面的师生问答，学生已初步形成对新知识的感知。在此基础上进行小组操练，有助于学生自己发现自身在知识掌握方面，及时弥补，强化记忆，形成正确的认知。)6. Learn to say(1) Listen and choose (课堂练习A)A. Listen and choose 1. A: Whats _? A. 10+5 B. 8+5 B: Its _. A. 16 B. 15 A: Thats right.2. A: Whats seven plus _ ? A. fourteen B. thirteen B: Its _. A. nineteen B. twenty A. Sorry, Youre _. A. wrong B. right3. A: Whats _? A. 18-15 B. 20-12 B: Its _. A. eight B. ten A: _. A. Thats right. B. Its right.4. A: Whats _? A. 18-4 B. 18+4 B: Its _. A. 15 B. 16 A: Oh, no. Its _. A. 13 B. 14(2) ReadRead after the tape.Read after the teacher.Read by the students themselves.Read in roles.Step 4 Consolidation (课堂练习B、C、D)B. Listen and Tick (听录音，在听到的数字下面打“”) 12 20 5 15 16 6 18 8 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )C. Read and choose (读和选)1. 你想知道“15-8”等于几时，你会说：_ A. Whats fifteen minus eight? B. Whats fifteen plus eight?2. 当别人计算错误时，你会说：_ A. Sorry. Youre wrong. B. Yes. Youre right.3. 当你想知道“6+9”等于几时吗，你会说：_ A. Whats sixteen plus nine? B. Whats six plus nine? C. Whats six minus nine?D. Read and write (读句子，写算式)1. Whats twelve plus three? _2. Whats eighteen minus eight? _(设计意图：前面的几个教学环节着重培养了学生听、说和读的技能，这一环节主要拍样学生写的技能。以练习方式来培养学生写的能力，一方面检测学生对所学内容的掌握情况，另一方面也为学生提供运用语言解决问题的机会，培养学生综合运用语言的能力。)七、板书设计Unit 5 Plus and minus (A)A: Whats plus / minus ?B: Its A: Thats right. Sorry. Youre wrong. Its / Oh, no. Its 9+4 13 8+6 14 15 11+5 16 9+8 17 1812+7 1911+9 20八、教学反思本课主要教授加减法。三年级学生有一定的数学运算基础，乐于表现，喜欢玩游戏，因此我把学生分成两大组玩游戏并比赛。由于比赛有竞争性，所以学生们的注意力高度集中，对新词的音、形、义把握较好。本课的教学思路比较清晰，首先通过简单的复习打开学生的思维，帮助学生迅速进入学习状态，也营造轻松、愉悦的课堂氛围。之后教师带领学生复习已学习的数词1-12，调动学生旧知，为学习新知做准备。我以比赛的形式让学生争取