3B  Unit 5  Plus and minus
  Teaching contents:   1  What’s …plus…? It’s …
         2  That’s right ./ Sorry, you’re wrong.
Teaching aims:     1  Students can say the sentences,what’s…plus…? and the answer ,it’s …
2 Can say the answers,that’s right.,sorry,you’re wrong.
3 Intrested in English,and math .
Difficult points:     What’s …plus…?
Important points:   What’s …plus…? It’s …
         That’s right ./ Sorry, you’re wrong.
  Teaching aids:      CAI
  Teaching steps : 一 Warming-up
               1 T: Goodmorning,boys and girls.
                Ss:Goodmorning,Miss Yan.
                T: Hello,how are you ?
                Ss: I’m fine,thank you .
                T:Qh,what’s this in English?
                Ss: It’s a book.
                T: Yes , that’s right. can you spell it ?
                Ss: b-o-o-k,book.
                T: That’s right.
                T:Excuse me ,what’s that on the desk ?
                Ss:A ballpen.
                T:Can I have a look ?
                Ss:Sure ,here you are.
                T:what a nice ballpen ! How many ballpens do you have ?
                Ss: I have one.
                T: You have one ,boys and girls,how many students are there in our class? Let’s count together,one,two,three,…
                T:How many students in our class?
                Ss:…
                T:That’s right.
                T: Teach :That’s right.  √  (say and do actions)
               二Presentation
                 1 T:Teach  that’s right ,check
               2 T: you’re very clever,now I give you some games.
                T:when I say the numbers,you please take out your fingers ,ok? (1-20)
                T:That’s right.   
3 T:This number is after 7,and before 9 ,what number is it ?(from little to big numbers)
T:That’s right./Sorry, you’re wrong . It’s …
T:Teach, sorry, you are wrong. It’s … （check，write sorry, you are wrong. On the blackboard  ）
4        Count the numbers  (when teacher claps hands twice,students please listen and count the number)
T: ..  .
Ss: three,
T:That’s right,/sorry,you’re wrong .
               5 T:  ***              ****
                 Ss: three             four
                 T: *******
                 Ss:Seven
                 T: three plus four is seven .     3 + 4 =7
                 T: Teach ,   plus ,  plus ,  加加 plus  (teacher shows the sign)
                 T：check
                 T:What’s 3plus4 ?
                 Ss:It’s 7.
                 T:That’s right.
                 T：Teach ，what’s 。。。plus…？
6        T: teacher brings two books, with in left hand,and brings three books with in right hand. What’s 2 plus 3 ?
Ss: five,…
T:That’s right. /sorry,you’re wrong.
7        T: teacher brings three pencilboxes and one pencilbox.
Ss:What’s 3 plus 1 ?
T: …
Ss:: T:That’s right. /sorry,you’re wrong.(教师故意做出错误的答案，巩固sorry,you’re wrong.)
            三 Practise
                  1 CAI 123
                   Ss：What’s…plus…？
Ss：It’s…
Ss：That’s right./Sorry,you’re wrong.
                 2 Turn to page thirty.. listen to the tape,carefully.
                 3 Read after the tape.
                 四 Homework
                    1 Listen to the tape。
                  2 Read after the tape，and then perform the dialogue in role.
                  3 Review picture 3，4。

3B  Unit 5  Plus and minus
  Teaching contents:   1  What’s …plus…? It’s …
         2  That’s right ./ Sorry, you’re wrong.
Teaching aims:     1  Students can say the sentences,what’s…plus…? and the answer ,it’s …
2 Can say the answers,that’s right.,sorry,you’re wrong.
3 Intrested in English,and math .
Difficult points:     What’s …plus…?
Important points:   What’s …plus…? It’s …
         That’s right ./ Sorry, you’re wrong.
  Teaching aids:      CAI
  Teaching steps : 一 Warming-up
               1 T: Goodmorning,boys and girls.
                Ss:Goodmorning,Miss Yan.
                T: Hello,how are you ?
                Ss: I’m fine,thank you .
                T:Qh,what’s this in English?
                Ss: It’s a book.
                T: Yes , that’s right. can you spell it ?
                Ss: b-o-o-k,book.
                T: That’s right.
                T:Excuse me ,what’s that on the desk ?
                Ss:A ballpen.
                T:Can I have a look ?
                Ss:Sure ,here you are.
                T:what a nice ballpen ! How many ballpens do you have ?
                Ss: I have one.
                T: You have one ,boys and girls,how many students are there in our class? Let’s count together,one,two,three,…
                T:How many students in our class?
                Ss:…
                T:That’s right.
                T: Teach :That’s right.  √  (say and do actions)
               二Presentation
                 1 T:Teach  that’s right ,check
               2 T: you’re very clever,now I give you some games.
                T:when I say the numbers,you please take out your fingers ,ok? (1-20)
                T:That’s right.   
3 T:This number is after 7,and before 9 ,what number is it ?(from little to big numbers)
T:That’s right./Sorry, you’re wrong . It’s …
T:Teach, sorry, you are wrong. It’s … （check，write sorry, you are wrong. On the blackboard  ）
4        Count the numbers  (when teacher claps hands twice,students please listen and count the number)
T: ..  .
Ss: three,
T:That’s right,/sorry,you’re wrong .
               5 T:  ***              ****
                 Ss: three             four
                 T: *******
                 Ss:Seven
                 T: three plus four is seven .     3 + 4 =7
                 T: Teach ,   plus ,  plus ,  加加 plus  (teacher shows the sign)
                 T：check
                 T:What’s 3plus4 ?
                 Ss:It’s 7.
                 T:That’s right.
                 T：Teach ，what’s 。。。plus…？
6        T: teacher brings two books, with in left hand,and brings three books with in right hand. What’s 2 plus 3 ?
Ss: five,…
T:That’s right. /sorry,you’re wrong.
7        T: teacher brings three pencilboxes and one pencilbox.
Ss:What’s 3 plus 1 ?
T: …
Ss:: T:That’s right. /sorry,you’re wrong.(教师故意做出错误的答案，巩固sorry,you’re wrong.)
            三 Practise
                  1 CAI 123
                   Ss：What’s…plus…？
Ss：It’s…
Ss：That’s right./Sorry,you’re wrong.
                 2 Turn to page thirty.. listen to the tape,carefully.
                 3 Read after the tape.
                 四 Homework
                    1 Listen to the tape。
                  2 Read after the tape，and then perform the dialogue in role.
                  3 Review picture 3，4。