小学英语Lesson 21评课ppt课件

这是一份小学英语Lesson 21评课ppt课件，共30页。PPT课件主要包含了board， black，Why ，hun，dred，Page 46， eighty ， ninety 等内容，欢迎下载使用。

Let’s sing.
What are the missing numbers?
Let’s guess.
Let’s review.
Let’s lk and think.
Where are the children?
blackbard
They are in the classrm.
What are they ding?
They are playing number games.
Let’s watch and think.
What d they say?
Let’s listen and say.
What des Lala ask?
Lk at the numbers n the blackbard: 50,60,__,__,90. Wh can guess the missing numbers?
Can yu guess the missing numbers?
What des Baba say?
Let’s tell.
50，60，__，__，90
Fifty plus ten is sixty.
What are the missing numbers?
Sixty plus ten is seventy.
Seventy plus ten is eighty.
Eighty plus ten is ninety.
One hundred minus ten is ninety.
ne hundred
Ninety minus ten is eighty.
S the missing numbers are eighty and seventy.
100，90，___，__，60
One hundred minus ten is ninety.
Ninety minus ten is eighty.
Eighty minus ten is seventy.
Seventy minus ten is sixty.
Let’s listen and repeat.
Let’s read in rles.
Let’s play.
What des Lingling say?
Seventy plus twenty is ninety.
What is seventy plus twenty?
What is seventy minus twenty?
Seventy minus twenty is fifty.
Can yu d it?
A minus B is 50. A is 70. B is____.
A plus B is 100. A is 60. B is____.
Let’s summarize.
70 seventy
100 ne hundred