【教学目标】
1.语言能力方面：通过头脑风暴、合作讨论、分享互动等方式掌握loose、wiggle…with…、fall out等与牙齿有关的词汇，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.学习能力方面：通过图片、视频等资源理解文本；在合作、探讨、自主学习中建构文本意义；能在活动中进行表达运用；
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，从而发展学生的猜测能力、提取信息能力和深度思考的能力，构建学生的知识体系。
4.文化品格方面：
通过歌曲、视频等方式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，了解不同国家的掉牙习俗，体会不同的文化习俗，感悟其美好的寓意，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，了解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，构建知识体系，体会牙齿的重要性，学会保护牙齿。
Step1. Pre-reading
1. Sing and greetings
2. Meet the teeth
(1)Show the topic and talk
T: Today, we’ll talk about our teeth. Look at your teeth, what do you know about teeth? Let’s have a brainstorm.
Summary: Teeth are…Teeth help us…We should…
(2)Discuss, match and share
T: What about the teeth when we were babies, 6 months old, 3 years old and 6 years old? You can discuss in groups and match.
Ss: When I was…months/old, I had no/a/some…teeth.
(3)Watch, check and draw
T: I think you have your ideas. Now let’s watch a video and check.
T: Are you right. Now let’s draw the time axis.
Step2. While-reading
1. Watch and talk
T: Our cartoon friend’s loose tooth fell out one day. Actually, this is very common. Look, some kids have a loose tooth, and some kids’ loose tooth fell out. Let’s watch.
T: (after watching)How do they feel？What do they do with their loose tooth? What about you?
Ss: I was afraid…I wiggled…with…
T: Don’t be afraid, it’s very common, it means you grow up, and your teeth will grow back./ You are happy because you know you are grow up.
2. Tooth Traditions around the world
(1)Skip and answer
What countries’ traditions are we going to learn?
(2)Learn in groups
(3)Enrich the time axis
(4)Let’s read
(5)Let’s think: What’s the meaning of these traditions?
Step3. Post-reading
(1) Act and report
T: From this lesson, I think you know more about teeth, but actually many kids are also worried about their old baby teeth, can you work in groups, choose one country to act and report to help them.
(2) Show adult teeth
T: We have adult teeth now, but they will not grow back, so we should take good care of your adult teeth.
(3) Caring for teeth
What should we do to take good care of them?
(4)Egypt tradition
T: Actually, there are many other traditions in the world like Egypt. You can read it after class and make your own works in the newspaper.
Step4.Hoemwork
1. Read the traditions in Egypt and make your own works in the newspaper.
2. Read the more books about teeth and traditions.
3. Make your own newspaper about protecting teeth
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