10的组成教案设计.pdf
学习必备欢迎下载第五单元610 的认识和加减法第 3 节 10 的认识和有关 10 的加减法【第一课时】10 的认识一、教学目标1掌握 10 的数、读、写、比较大小和组成等知识。2经历数一数、摆一摆、分一分的认数过程,帮助学生初步建立数感。初步学会用已学知识和经验解决问题，增强应用意识。3体会生活中处处有数学,感受到学习数学的乐趣。二、教学重点全面充分的认识 10、掌握 10 的组成。三、教学难点熟练掌握 10 的分解与组成。四、教学具准备课件五、教学过程（一）情境导入1情境：我们已经认识了0、1、2、3、4、5、6、7、8、9 这些数。它们每个数都是我们的朋友，每天在一起游戏，高高兴兴。慢慢的9 发现，在这些数中它是最大的，于是就开始骄傲起来。它对其他数说：“你们这些小不点，都比我小。你们以后都要听我的，我是你们的大王。”为了帮助骄傲的 9，1 悄悄的拉起0 的手，站在 9 的面前。9 像看到一个新数一样，惭愧的低下头，再也不骄傲了。你知道 1 和 0 拉起的小手组成了什么数吗？2 思考：10 究竟是多少？它真的比9 大吗？那今天我们就一起来认识这个新朋友-10。3 板书：10 的认识（二）探究新知1数一数（1）请你大声数一数,能不能从这幅图中找到我们今天要认识的10？师：谁来带领大家把你找到的10 数一数？学习必备欢迎下载还有其他的 10吗？谁还想来数一数。（2）想不想自己动手数一数呀。听清要求。从你面前的小碗里，快速数出10 个学具？（3）在生活中，还有什么可以用数量10来表示。师：这么多种不同的东西，只要数量是10 个，我们都可以用数10 来表示。（4）猜猜看老师的计数器上有几颗珠子。先看 1，再估计 9.师：看来 9 再添 1 就是几了？重复：9 再添 1 就是 10.2.比一比（1）出示点子图谁是没用数就知道是几的？介绍下你的方法？师：9 添上 1 是 10。10 去掉 1 就是 9 师：根据这幅图，请你说一说：几和几比，怎么样？板书：99 （2）数序 师：还带来了我们的一个好朋友。但尺子上的刻度掉了。能不能帮助把他们送回家。观察尺子图，你能发现数量之间的关系。填一填 10（）8()那现在 10 就可以骄傲了吗？后面还有很多的数，我们会慢慢学习的。3.10的组成。（1）整理下 10 的分解组成师：把你自己动手分一分刚才数好的10 个学具。并把分的结果记录在纸上。1 2 3 4 5 6 7 8 9 文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 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ZQ3O3X7X8V6学习必备欢迎下载 10 师：整理的结果是按照顺序的，真棒，有序整理就能帮助我们做到不遗漏不重复。其实无论我们干什么事情都应该是有顺序的。（2）观察，10的组成，有什么规律？一个数依次变大，另一个数依次变小.在总结变化规律的基础上，学生记忆。游戏学生组织玩请你和我组成10,我出 4,游戏。咱们一起来完成猜一猜游戏，猜猜老师手里藏了几个？你怎么知道老师藏起了几个？师：真棒，还会利用我们今天学习的组成知识解决问题。4.书写 10 师：写 10 的时候要占 2 个日子格，左边是 1，右边是 0。1 和 0 还不能离的太远。（三）拓展延伸1.画一画请圈出从左数的10个小朋友，请给从左数的第10个小朋友脚下画条线。2.填一填知道这是在干什么吗？想不想和叔叔一起进行倒数呢？3.数学你知道吗？古代算筹9 8 7 6 5 4 3 2 1 文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 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ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6学习必备欢迎下载在我们书上的65 页，有中国古代算筹的介绍，感兴趣的同学可以去看看，也可以上网或书中找找相关的资料，我们一起分享。文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 HS5Q5K6K8V4 ZQ3O3X7X8V6文档编码:CH6R3G1A4J10 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