《活化石》教学设计.pdf

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1、1/5 活化石教案设计教案目标1 认识 11个生字。会写 8 个字。2 正确、流利、有感情地朗读课文。3 初步了解一些古生物知识，有保护珍稀生物的意识。教案重难点识字、写字，有感情地朗读课文，初步了解一些古生物知识，有保护珍稀动物意识。设计思路学生对化石的知识了解不多，但是对大熊猫比较熟悉。这篇教案设计，从学生已有的知识经验出发，让学生在进一步了解一些古生物知识的同时，呼唤学生热爱大自然，保护生物的意识。让学生动口、动手、动脑，走出教室，走出校园，查阅有关古生物资料，扩展自己的视野，培养搜集处理信息的能力。同时，引导学生自主学习，自主识字、阅读，让学生合作学习、互相交流、探究发现，引发他们探索

2、大自然奥秘的欲望。课前准备1 做课件和头饰。2 制作各种生物形状的生字卡片。3 师生一起搜集有关古生物的资料。2/5 第一课时一、播放课件，激趣导入。1 出示课件，向学生介绍一点古代生物的知识，然后让学生说说：你看到了什么？想到了什么？2 板书：化石。你见过化石吗？在哪里见过？它是什么样子的？（师简述“化石”）3 板书：活。化石怎么是活的呢？同学们读了课文就知道了。二、朗读课文，初步感知。1 边读边圈画出自己不认识的字，自己想办法认读，如借助拼音认读，向老师和同学请教等。2 指名读课文。读后师生共同评议。3 教师有重点地领读重点句子，相机给予指导。4 轮读，让五位学生每人读一个自然段。5 选读

3、，喜欢读哪段就读哪段。6 组内分工读，互听互评。读后说说：课文介绍了哪几种活化石？三、识记生字。1 课件出示生字词，请小老师领读。“珍、肉、史”等字是翘舌音，提醒学生读准字音。b zh nx s n ju r u x n sh l n 博物馆珍稀公孙树灭绝食肉中华鲟历史硬鳞h quf核桃缺乏2.出示生物形状的生字卡片。引导学生认读生字，并交流记字方法。3.游戏：识字擂台赛。出示 11个生字，举行识字擂台赛，选出擂主。文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6

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9、5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码

10、:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W43/5 四、指导写字。1 课件出示要写的字，学生认读，交流记字方法。2 观察规律，指导书写。（1）四个左右结构的字“化”“代”“孙”“植”应该怎样写？（2）写“灭”“克”应该注意什么？（3）指导书写“历”和“史”中的竖撇。3 学生描红，临写。4 组内推选出好的作品在全班展示，师生共同评议。五、布置作业。把课外找到的文字资料或图片资料做成卡片，写上说明，准备在下节课向大家介绍。第二课时一、复习巩固。1 抽读生字卡片。2 游戏：识字采果。出示一

11、棵银杏树，树上结满了果子，果子上写了生字。认对一个字，采下一个果子。二、质疑解疑。1 自由朗读课文，读后想一想：你有哪些地方不懂？提出来在小组内讨论。2 集体反馈，师生共同讨论。三、朗读感悟。1 刚才在识字时，同学们见了银杏树，谁能说说银杏树的树叶是什么样子？文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:C

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18、5 为什么说它是活化石呢？自由朗读第2 自然段，读后说说：你读了这段后知道了什么呢？2教师范读第2 自然段，注意强调“几亿年前”“一把把小扇子”“当上爷爷”，让学生感悟银杏树样子的奇特、可爱和生存年代的久远。3学生模仿读第 2 自然段。4.学生自读第 3、4自然段，读后谈谈感受。再读课文，读出感受。5.学生齐读第 5 自然段。同学们，读了这一段，你想说点什么呢？小结：银杏树、大熊猫、中华鲟成为人类研究古生物的活化石。银杏树长得慢却有着营养丰富的果实，是世界上最古老的树种之一。大熊猫、中华鲟摆脱了重重磨难，顽强地生存到现在。如今，这些古生物已经越来越少了，让我们携起手来保护它们吧！四、情境说话。

19、假如你是“活化石”银杏树或大熊猫、中华鲟，请你向大家介绍一下自己，好吗？（先组内练习自我介绍，再戴头饰到台上作自我介绍。介绍完毕，师生共同评议。）五、读读写写。1 出示课后“读读写写”习题，全班练读练写。2 扩展练习。一本本一座座一朵朵一双双一位位六、作业展示。拿出上节课的作业向大家展示，介绍自己的作品。（内容不限制，可以是本课介绍的三种古生物，也可以是其他的古生物，甚至是学生喜欢的其他动植物。）文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4

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25、档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U

26、5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W45/5 文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8

27、H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y

28、2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6

29、O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9

30、A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I

31、1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4文档编码:CT6O7K10U5Z4 HM9A8H5K5P4 ZJ5I1Y2C3W4