Lesson 4 Welcome to the dog show 课件

课件15张PPT。Lesson 4
Welcome to the Dog ShowFattyHattyWelcome to the dog show!Find out the numbers.找出图中的数字。116597410238Find out the rule.找出以下数字的发音规律。3Let's do sums.一起计算总和。420121plusisWhat's 20 plus 1？--It's 21.20加1等于多少？ 等于21。20 + 1 = 21
20 + 2 =
30 + 3 =
40 + 4 =
70 + 5 =
90 + 10 = 100
A: What's ...plus...?
B: It's...
22334475Can you say it in English?你能用英语说出它吗？5Can you say it in English?2 plus 1 is 3.2+1=3
3+2=5
4+3=7
5+4=9 2 minus 1 is 1.2 - 1 = 1
3-2=1
4-3=1
5-4=1minusYes, I can.Choose numbers, “+” or “-” and “=”.
组成等式并读出。
1 1 2 + - =
1 + 1 = 2
2 - 1 = 1 3 8 5 + - =16 9 7 + - =...HWPlease read th numbers of “Let's play” on page 41.
作业：朗读课本41页Let's play部分的数字。6Thank You!