Ask and answer:
How many … are there?
There are …
This is a classroom.
How many … are there in the classroom?
There are … in the classroom.
There is a/an … in the classroom.
... ... ...
Listen and repeat.
11 12 13 14
eleven twelve thirteen fourteen
15 16 17 18
fifteen sixteen seventeen eighteen
19 20
nineteen twenty
... ... ...
Let's calculate!
two + fourteen =sixteen
nine + one =ten
four + eight =twelve
six + seven=thirteen
four - one =three
Listen and point.
1. 11+4 = 15
2. 12+6 = 18
3. 14+6 = 20
4. 17+2 = 19
... ... ...
规则类:相应数字英文+teen
14:fourteen, 16:sixteen,
17:seventeen,18:eighteen
19:nineteen
不规则类:
11:eleven,12: twelve,
13:thirteen,15:fifteen ,
20:twenty
... ... ...
Do you know them?
+:Plus /and
- :minus
如:12+2=14
twelve and two is fourteen
About quantity
How many… are there?
How much… is there?
How ______ pens are there?
There are _____ pens.
How ______ meat is there?
There is a kilo.
《I'm twelve》PPT课件 Revision Work in pairs Whats your name? Can you spell it please? How are you? Whats your telephone number? 如何问年龄? How old are you? Im thirtee..