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3.思维品质方面：借助图片、文本等资源引导学生开展合作探究学习，发展学生的猜测能力、提取信息能力和深度思考的能力，帮助学生构建关于乳牙的知识体系。
4.文化品格方面：帮助学生了解牙齿的常识，认识到换牙是成长过程中的普遍现象，学习不同国家的掉牙习俗，体会不同的文化习俗，体会牙齿的重要性，学会保护牙齿。
【教学重点、难点】
1.掌握loose、wiggle…with…、fall out等与牙齿有关的词汇，学习不同国家的换牙习俗，并能运用新知识尝试表达自己掉牙经历和不同国家的习俗；
2.理解、建构文本意义，并能在活动中进行表达运用，发展思维能力，帮助学生构建关于乳牙的知识体系，体会牙齿的重要性，学会保护牙齿。
Step1. Pre-reading
Let’s sing
Let’s greet
Let’s guess
T: With me, my new friend is coming too. Look! Who is he? How is he? What happened, can you guess?
Let’s watch and check
T: Let’s watch a video to check the answers.
T: Ok. After watching, do you know the answer?
Ss: Tutu’s tooth is missing.
T: Yes, you are right. Then where’s the tooth?
Ss: The tooth fell out.
T: Yes, you got it. So today, our topic is “My tooth fell out!”
揭题：My tooth fell out!
Step2. While-reading
Let’s focus
What do you know about teeth?
What do you think of teeth?
What do you want to say to Tutu?
Teach: important, take good care of…
Let’s share
T: We know Tutu’s baby tooth fell out. Has this happened to you? Yeah, me too. This is very common for 6 or 7 year-old kids. Because this is our baby tooth.
About the baby tooth, what do you know?
Ss:…
T:（根据学生的回答适时调整、引导）
When did you have a loose tooth?