S:It’s one/two/three……twenty.

        T: Good.Let’s  sing a song.  <<Number song>>

Step3:  (1) T: （出示５个苹果）What are these?

          S:  They are apples.

          T:  Let’s count , one….five.  (板书: 5)

(出示3个苹果) Look,they’re apples too. Count ,please

S:   One….three.

T;   (板书:  3)

(把苹果和起来)Let’s  count  again.  One….eight. (板书: 8   并补充完5+3=8.   指着5+3 老师问  What’s  five  plus  three ?)

         S:  (引导回答)It’s eight.

          T:  That’s right./Sorry, you are wrong. (出示纸牌)

（2）T：（出示10支铅笔）Look， these are pencils，let‘s count.

     S: (count)

     T: (Bb : 10,  show 5 pencils)  Let’s count again.

     S: (count)

     T; (Bb: 5    10+5)  What’s 10 plus 5?

     S: It’s…..

     T: (Bb: 10+5=15)

     S : That’s right ./Sorry ,you are wrong .

 (3)T :( show 7rulers) These are 7 rulers.  (Bb: 7)

   S: (show 13 rulers) These are 13 rulers.  (Bb: 13  7+13)

   T: What’s seven plus thirteen?

   S:It’s….

   Ss:  That’s right . /Sorry, you are wrong.

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