Unit 5 Plus and minus教学设计
教学内容:
译林、牛津出版社 《牛津小学英语》 （Fun with English 3B Unit 5 Plus and minus）
教材分析：
本单元教学内容是在第四单元的基础上，进一步复习以学过的数词，并学习数词13—20。 Learn to say 和look and learn 是围绕数词展开的，教学内容仅涉及数词。在Look and say 中，教材出现了新句型How many …  can you see ?   要求学生理解，并能用以配合数词操练即可。
学情分析：
学生情况方面：三年级学生已经有了一定学习英语的基础，能够听懂简单的英语，也能运用所学的英语表达自己的观点和看法。
教材情况方面：学生在学习3B的时候要对单词进行一些简单的抄写和默写，对学习英语的目标要求高了，从原来的听，说，读，到现在要会写。
教学目标:
认知目标:
1、学生能正确听、说、读新词汇: plus, minus;
  2、通过游戏进行复习，熟练掌握数字1—20。
  3、正确听、说、读句型：What’s…plus/minus…? It’s …及掌握正确回答：That’s right./ Sorry, you are wrong.
情感目标:
通过各种游戏，激发学生用英语做数学游戏的兴趣，提高学生的参与意识和竞争意识。
创新意识:
  通过操练，学生能根据自己的实际情况自编20以内的数学加减法题目，部分学生达到自编30以内的加减法题目。
教学重点：
新单词: plus, minus
新句型: What’s … plus/minus…?  It’s…  That’s right./ Sorry, you are wrong.
教学难点：
   根据其他同学的回答，及时、正确地用‘That’s right./Sorry, you are wrong.来判断。
课前准备：
有关实物: pencils, chocolate, red stars
教学步骤：
Step 1 Revision(复习)：
warming up exercises（热身运动）
T: Good morning, boys and girls.
S: Good morning Miss Deng.
T: How are you ?
S:
I’m very happy today, because some Indians will come to our classroom, let’s welcome them. ( See the screen, and there is a pictures of Indians.) So Let’s sing and dance with them, OK?
S:
Sing and Dance: “Ten little Indians”
T: How many Indians are there?
S:  
Since you can sing from one to ten very fluently, so let’s try to say the numbers from one to twenty one by one. But when it comes to “five” or the multiples of five, you shouldn’t say the number, say “Bingo” instead, understand?
S:
Count the numbers one by one, if students get the right answer, say That’s right, and if he/she get the wrong answer, help them say “ Sorry. You’re wrong.” And stick the sentence pattern on the blackboard. ( write on the blackboard: That’s right. Sorry. You’re wrong.)
2. Revision:  Review numbers（通过两个游戏复习数字1—20）
Louder and lower: 老师用很响亮的声音说一个数字，学生齐声轻轻说；老师轻轻说一个数字，学生齐声大声说出这个数字。
Say the numbers before: 老师说一个数字，学生快速反应这个数字的前一个数。
Flash cards: 快速闪动数字卡片，学生立刻反应出来并读出来。

Step 2 Leading in(导入)：
Magic bag（神奇的包）: 让学生触摸
(Ask 1 student to touch the pencils in the bag, and then take out some pencils)
(T) Oh, yes, here you are.  How many pencils are there in my hand? Guess!
Oh, Let’s count! Ha, that’s right. Would you say: That’s right! ( 学生一齐念 )
Step 3 Practice (操练):
（将全班分成4组，教师提问，一组回答，其余三组用 That’s right.  Sorry, you are wrong.’进行判断。）
Questions: （问题）
How many teachers are there in our classroom?
How many exercise books are there in our classroom?
How many lights can you see?
How many boys are there in group one?
( Ss say: Sorry, you are wrong./That’s right  with gestures)(学生边回答边打手势表达正误。)
Step 4 Presentation: plus （呈现新授单词：plus）
  Plus: Two pencils in my left hand, 3 pencils in my right hand, then 2plus3 is…? (Ss:5)
  Read（学生朗读）: plus ( 板书：plus )
  Read: 3 plus 2, 5 plus 3
  Can you give me some examples? Group one, first, begin!( 四小组比赛：在规定时间1分钟内小组内轮流出题：3plus1,  7 plus 4…, 哪一组出题又多又正确为胜 )
  T: (教师顺着最后一人所出的题说)Then,  do you know what’s 6 plus 4? (板书：What’s six plus four?)
  S:
  T: What’s one plus six?...
  Can you ask me now?
  S1: what’s … plus…?
  T: It’s…
  S1: That’s right./ Sorry, you are wrong。(通过反过来问复习句型： Sorry, you are wrong. / That’s right.)
  Step 5 Practice（操练）
  (Choose 1 student to ask another student)(老师先选一个学生来示范提问，其他学生来回答)
  Ss practice in pairs （同桌之间操练句型）
  Choose 4-5 pairs to act out. （操练结束后，老师选几组来汇报，鼓励加入自己的话语）
Step 6 Presentation: minus（呈现新授单词：minus）
T: Now show your hands, let’s relax.
Say a chant: show me your hands, clap, clap, clap. Show me your head, nod, nod, nod. Show me your feet, stamp, stamp, stamp.
T show two hands: how many fingers?
Ss:
T hide one hand and ask: how many fingers are there now?
Ss:
T: That’s right. Ten minus five: minus. (minus, minus)
Ss: Students read the word for several times.
T: What’s ten minus five? (with gestures)
Ss:
T: That’s right.
T:Show five chocolates, and then T eats one: What’s five minus one?
S: It’s four.
Give another one to S
S: What’s four minus one?
Ss: It’s four.
(板书：What’s five minus four? )
( practice in pairs, 2-3 act out) （操练结束后选2－3组表演）
Step 7 Practice: Competition （通过比赛来巩固句型）
(将全班分成6组，每一组的第一个小朋友是猫，最后一个小朋友是老鼠，中间的小朋友是来保护猫的，中间的小朋友不断给猫出题目，让猫做题，做对了，猫就可以前进一步了，作后看哪个老鼠最后被猫吃掉，就胜利。提示：每小组内出题不能重复)
T: One, two, begin!
(After the game, count the apples, and see which group is the best)
Step 8 Homework（课后作业）:
1) Read after the tape: Unit 5 part A  for 3 times, try to imitate the pronunciation and intonation, then ask and answer with ‘plus’ and ‘minus’ with partners.
板书设计：
Design of writing （板书设计）
                     Unit 5 Plus and minus      
plus +             Sorry, you are wrong.
3 plus 7           That’s right. / It’s right. / You are right.
minus –            What’s … plus…?  It’s…
10 minus 4         What’s… minus…?  It’s…

Unit 5 Plus and minus教学设计
教学内容:
译林、牛津出版社 《牛津小学英语》 （Fun with English 3B Unit 5 Plus and minus）
教材分析：
本单元教学内容是在第四单元的基础上，进一步复习以学过的数词，并学习数词13—20。 Learn to say 和look and learn 是围绕数词展开的，教学内容仅涉及数词。在Look and say 中，教材出现了新句型How many …  can you see ?   要求学生理解，并能用以配合数词操练即可。
学情分析：
学生情况方面：三年级学生已经有了一定学习英语的基础，能够听懂简单的英语，也能运用所学的英语表达自己的观点和看法。
教材情况方面：学生在学习3B的时候要对单词进行一些简单的抄写和默写，对学习英语的目标要求高了，从原来的听，说，读，到现在要会写。
教学目标:
认知目标:
1、学生能正确听、说、读新词汇: plus, minus;
  2、通过游戏进行复习，熟练掌握数字1—20。
  3、正确听、说、读句型：What’s…plus/minus…? It’s …及掌握正确回答：That’s right./ Sorry, you are wrong.
情感目标:
通过各种游戏，激发学生用英语做数学游戏的兴趣，提高学生的参与意识和竞争意识。
创新意识:
  通过操练，学生能根据自己的实际情况自编20以内的数学加减法题目，部分学生达到自编30以内的加减法题目。
教学重点：
新单词: plus, minus
新句型: What’s … plus/minus…?  It’s…  That’s right./ Sorry, you are wrong.
教学难点：
   根据其他同学的回答，及时、正确地用‘That’s right./Sorry, you are wrong.来判断。
课前准备：
有关实物: pencils, chocolate, red stars
教学步骤：
Step 1 Revision(复习)：
warming up exercises（热身运动）
T: Good morning, boys and girls.
S: Good morning Miss Deng.
T: How are you ?
S:
I’m very happy today, because some Indians will come to our classroom, let’s welcome them. ( See the screen, and there is a pictures of Indians.) So Let’s sing and dance with them, OK?
S:
Sing and Dance: “Ten little Indians”
T: How many Indians are there?
S:  
Since you can sing from one to ten very fluently, so let’s try to say the numbers from one to twenty one by one. But when it comes to “five” or the multiples of five, you shouldn’t say the number, say “Bingo” instead, understand?
S:
Count the numbers one by one, if students get the right answer, say That’s right, and if he/she get the wrong answer, help them say “ Sorry. You’re wrong.” And stick the sentence pattern on the blackboard. ( write on the blackboard: That’s right. Sorry. You’re wrong.)
2. Revision:  Review numbers（通过两个游戏复习数字1—20）
Louder and lower: 老师用很响亮的声音说一个数字，学生齐声轻轻说；老师轻轻说一个数字，学生齐声大声说出这个数字。
Say the numbers before: 老师说一个数字，学生快速反应这个数字的前一个数。
Flash cards: 快速闪动数字卡片，学生立刻反应出来并读出来。

Step 2 Leading in(导入)：
Magic bag（神奇的包）: 让学生触摸
(Ask 1 student to touch the pencils in the bag, and then take out some pencils)
(T) Oh, yes, here you are.  How many pencils are there in my hand? Guess!
Oh, Let’s count! Ha, that’s right. Would you say: That’s right! ( 学生一齐念 )
Step 3 Practice (操练):
（将全班分成4组，教师提问，一组回答，其余三组用 That’s right.  Sorry, you are wrong.’进行判断。）
Questions: （问题）
How many teachers are there in our classroom?
How many exercise books are there in our classroom?
How many lights can you see?
How many boys are there in group one?
( Ss say: Sorry, you are wrong./That’s right  with gestures)(学生边回答边打手势表达正误。)
Step 4 Presentation: plus （呈现新授单词：plus）
  Plus: Two pencils in my left hand, 3 pencils in my right hand, then 2plus3 is…? (Ss:5)
  Read（学生朗读）: plus ( 板书：plus )
  Read: 3 plus 2, 5 plus 3
  Can you give me some examples? Group one, first, begin!( 四小组比赛：在规定时间1分钟内小组内轮流出题：3plus1,  7 plus 4…, 哪一组出题又多又正确为胜 )
  T: (教师顺着最后一人所出的题说)Then,  do you know what’s 6 plus 4? (板书：What’s six plus four?)
  S:
  T: What’s one plus six?...
  Can you ask me now?
  S1: what’s … plus…?
  T: It’s…
  S1: That’s right./ Sorry, you are wrong。(通过反过来问复习句型： Sorry, you are wrong. / That’s right.)
  Step 5 Practice（操练）
  (Choose 1 student to ask another student)(老师先选一个学生来示范提问，其他学生来回答)
  Ss practice in pairs （同桌之间操练句型）
  Choose 4-5 pairs to act out. （操练结束后，老师选几组来汇报，鼓励加入自己的话语）
Step 6 Presentation: minus（呈现新授单词：minus）
T: Now show your hands, let’s relax.
Say a chant: show me your hands, clap, clap, clap. Show me your head, nod, nod, nod. Show me your feet, stamp, stamp, stamp.
T show two hands: how many fingers?
Ss:
T hide one hand and ask: how many fingers are there now?
Ss:
T: That’s right. Ten minus five: minus. (minus, minus)
Ss: Students read the word for several times.
T: What’s ten minus five? (with gestures)
Ss:
T: That’s right.
T:Show five chocolates, and then T eats one: What’s five minus one?
S: It’s four.
Give another one to S
S: What’s four minus one?
Ss: It’s four.
(板书：What’s five minus four? )
( practice in pairs, 2-3 act out) （操练结束后选2－3组表演）
Step 7 Practice: Competition （通过比赛来巩固句型）
(将全班分成6组，每一组的第一个小朋友是猫，最后一个小朋友是老鼠，中间的小朋友是来保护猫的，中间的小朋友不断给猫出题目，让猫做题，做对了，猫就可以前进一步了，作后看哪个老鼠最后被猫吃掉，就胜利。提示：每小组内出题不能重复)
T: One, two, begin!
(After the game, count the apples, and see which group is the best)
Step 8 Homework（课后作业）:
1) Read after the tape: Unit 5 part A  for 3 times, try to imitate the pronunciation and intonation, then ask and answer with ‘plus’ and ‘minus’ with partners.
板书设计：
Design of writing （板书设计）
                     Unit 5 Plus and minus      
plus +             Sorry, you are wrong.
3 plus 7           That’s right. / It’s right. / You are right.
minus –            What’s … plus…?  It’s…
10 minus 4         What’s… minus…?  It’s…