(共24张PPT)
Unit 6 How many
Period 5
Part B Let's learn. & Let's chant.
Warm-up
Wu Binbin, what's this
My new crayons.
Wow! How many crayons do you have
Open it and see!
1, 2...16. You have 16 crayons!
Role-play
five+six= six+nine=
three+nine= ten+three=
five+nine=
快速计算
fifteen
eleven
twelve
fourteen
thirteen
Presentation
Let’s learn
19
18
Can you read
How many crayons does Wu Binbin have
He has sixteen crayons!
Language points
十六
How many crayons do you have
11
12
13
14
15
16
？
十七
seven+ten=seventeen
How many books do you have
18
十八
How many oranges do you have
19
十九
How many monkeys do you see
二十
观察图片，并试着认读图中的数词
Listen and read
How many cars do you have
We have twenty.
sixteen
seventeen
eighteen
nineteen
twenty
Let’s count together
sixteen
seventeen
eighteen
nineteen
twenty
How many cars do you have
We have ...
sixteen
seventeen
eighteen
nineteen
twenty
替换对话中的数字，进行问答练习
助记顺口溜
sixteen、seventeen和nineteen真易记，
后面四位都是-teen。
eighteen 只有一个t，请你一定要注意。
二十词尾是-ty, twenty不同重点记。
巧学妙记加努力，肯定会有好成绩。
How many do you have How many do you see
10 and 8 makes 18. Can you count with me
How many do you have How many do you see
4 times 5 makes 20. Can you count with me
10+8=18
4x5=20
Let’s chant
What does 10 and 8 make
What does 4 times 5 make
10 and 8 makes 18.
4 times 5 makes 20.
10+8=18
4×5=20
How many do you have How many do you see
... and ... makes ... Can you count with me
How many do you have How many do you see
... times ... makes ... Can you count with me
替换歌谣中的数字，并演唱
Practice
同学们进行20以内的加法口算比赛。先由老师与一名同学进行示范。然后同学们自愿上台进行1对1口算比赛，两名同学互相给对方出题。答错出局，答对者守擂并与自愿上台比赛的同学继续进行车轮战。看一看谁能留到最后。
“谁是算数王”趣味比赛
示例如下：
T:What is five and three
S1:Eight.What is two and eleven
T:Thirteen...
（同学之间进行1V1车轮战）
S1:What is five and eight
S2:Fourteen.（答错出局，下一名学生上台比赛）
S3:What is ten and ten
S1:Twenty.What is ten and seven
...
Exercise
一、选出不同类的一项。
（ ）1. A. boat B.sixteen C.desk
（ ）2. A. eighteen B. tall C.short
（ ）3. A. she B. twenty C.he
（ ）4. A. kite B. ball C.seventeen
（ ）5. A. small B. big C.nineteen
B
A
B
C
C
1. Five and nine makes _______.
2. Nine and seven makes _______.
3. Four times five makes _______.
4. Three times five makes ________.
二、算一算，写出正确的数字单词。
fourteen
sixteen
twenty
fifteen
Homework
记忆生词sixteen、seventeen、eighteen、nineteen、twenty
和好朋友一起唱一唱Let’s chant中的歌谣
Thanks for listening!
