最新《只有一个地球》第二课时说课稿(28篇)
范文为教学中作为模范的文章,也常常用来指写作的模板。常常用于文秘写作的参考,也可以作为演讲材料编写前的参考。那么我们该如何写一篇较为完美的范文呢?这里我整理了一些优秀的范文,希望对大家有所帮助,下面我们就来了解一下吧。
《只有一个地球》第二课时说课稿篇一
这是1972年在瑞典首都斯德哥尔摩召开的人类环境会议提出的响亮口号,本文以此为题,采用科学小品文(文艺性说明文)的形式,从人类生存的角度介绍了地球的有关知识,阐明了人类的生存“只有一个地球”的事实,呼吁人类应该珍惜资源,保护地球。
课文层次分明、脉络清晰。先从宇航员在太空遥望地球所看到的景象写起,引出了对地球的介绍;接着从地球在宇宙中的渺小、地球所拥有的自然资源有限而又被不加节制地开采或随意毁坏等方面,说明地球面临着资源枯竭的威胁;然后用科学家研究的成果证明,当地球资源枯竭时,人类目前无法移居到第二个适合的星球上;最后告诉读者:人类应该精心保护地球,保护地球的生态环境。
针对文章的特点,我制定了这样的教学目标和重难点:
教学目标:
1、朗读课文,理解课文内容,懂得“只有一个地球”的道理,增强爱护环境、保护地球的意识。
2.引导学生在阅读中体会文章用词的准确性,领悟文章的说明方法。
教学重点:
明白人类的生存“只有一个地球”,懂得要珍惜资源、保护地球的生态环境。
教学难点:
通过联系实际思考问题,加深对课文的理解,并将保护地球的意识付诸行动。存的美丽星球。
基于教学目标的制定和重难点的提出,结合《新课标》理念,我采用了自读感悟、自主探究、合作交流、等学习方式,努力构建开放而有活力的新型语文课堂。始终体现学生是学习的主人,教师是学生学习伙伴中的首席。
根据以上分析,我设计了情境激趣——学习探究——拓展迁移的教学模式。
(一)情境激趣
叶圣陶先生说过:“入境始于亲。”在观看航天员杨利伟在神舟五号飞船上拍摄的地球美景时,我设计了一段导语,激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。而后,一句看似不经意的问:“地球,你还想称它为什么?”学生亲切的称呼,拉近了孩子们与地球的情感距离,为后面各环节的教学作好了情感铺垫。
(二)学习探究
在充分调动学生兴趣的基础上,我让孩子们自读课文,引导他们抓住地球太可爱,又太容易破碎这一切入点,归纳为三个探究主题。
1、地球的美
首先让他们从文字中去感受美。孩子们通过多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。引导学生抓住“6300多公里”、“一叶扁舟”体会作者是采用列数子、打比方、作比较的方法来写出地球的美丽和渺小。
然后,进入相关网页,地球丰富的资源展现在学生的面前,使他们深刻地认识到地球的美,不仅在于它的外观,更在于它对人类的无私奉献。
2、地球的易碎性
引导他们通过自读,引导他们抓住“至少”、“本来”等词,体会说明文应用词准确。弄清地球上的“再生资源”和“不可再生资源”,然后,由学生来读他们准备的资料,从触目惊心的数据中感受到人类的破坏性和残忍。此时老师在播放一组美丽的家园伤痕累累的图片,此时此刻,孩子们禁不住伤心愤怒,发出和宇航员一样的感叹。再让他们结合生活中的现象来谈一谈自己的周围有哪些破坏环境的行为。
3、地球的唯一性
老师补充别的星球不适合人类居住的有关资料,这样的设计让学生深刻理解了人类“不能移居”的原因。
(三)拓展迁移
让孩子们联系自己的生活实际,交流讨论,为了保护地球,保护我们美丽的家园,我们应该做些什么。在交流讨论的过程中,相互启迪,碰撞出创新的火花。并且让学生在写小片段的时候可运用我们所学的说明方法。
这是一篇说明文,引导学生在抓住“一个中心句,三个支点”加深对课文理解的同时,激发学生珍惜资源、保护地球的情感,并且引导学生在阅读中体会文章用词的准确,领悟文章的说明方法,并用于指导小片段的写法。致力于学生语文素养的形成和发展。
《只有一个地球》第二课时说课稿篇二
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《只有一个地球》第二课时说课稿篇三
《只有一个地球》是人教版第十一册第三组的一篇科学知识说明文。朴实、流畅的语言,严谨的结构,清楚的条理,又饱含着深情,是这篇文章的特点。它通过地球“美丽可爱而又渺小”、“资源的有限与面临的枯竭”、“不能移居”这三方面介绍了地球的有关知识,教育我们要精心保护这唯一可以赖以生存的美丽星球。
学生在四年级的时候通过《地球万岁》一课已初步认识到了地球对我们的重要性,而课前让他们通过各种方式了解地球,并充分利用网络架起时空桥梁,搭起学生意义建构的“支架”,会让学生更直观、形象地获取知识、认识地球。
针对学生实际和本课的教材特点,我将教学目标 定位在:
1、知识目标:学会本课七个生字,能理解“渺小、矿产、恩赐、慷慨、枯竭、滥用、威胁”等词语;了解地球的特点、有限的资源及人类的开发对地球产生的危害。
2、能力目标:培养学生学会抓住重点问题把握、理解文章的中心,并能够正确表达出自己的感想。
3、情感目标:激发学生珍爱地球、善待地球的情感,从小树立环保意识。
教学重、难点是:引导学生利用网络和信息技术,进行自主、个性化的探究阅读,达到教学目标 提出的感受地球之美,从小树立环保意识的要求。
基于教学目标 的制定和重难点的提出,结合《新课标》理念,我采用了自读感悟、自主探究、观察感悟、情感交流等学习方式,努力构建开放而有活力的新型语文课堂。始终体现学生是学习的主人,教师是学生学习伙伴中的首席。
根据以上分析,我设计了观察激趣——问题探究——升华情感——拓展迁移的教学模式。
(一)观察激趣
叶圣陶先生说过:“入境始于亲。”在观看所拍摄的地球美景这前,我先让学生们观看了几张宇宙中的图片,然后我设计了这样几句导语:“在浩瀚无边的宇宙中有一个美丽的星球 ,它是我们人类的家园,它是太阳和月亮的好朋友,它就是——地球”,然后又观看地球的国片。这样就激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。而后,一句看似不经意的问:“看了这些图片,你想用一句什么话来赞美地球?”学生发自肺腑的表达,为后面各环节的教学作好了情感铺垫。
(二)问题探究
从文中的关键问题引导学生入手,对学生对通篇课文的理解有很好的帮助。所以我引导学生:通过观察图片我们感受到了地球的美丽,那在课文当中作者用哪一句话概括了地球的特点?得出“地球太可爱,又太容易破碎”这一令人困惑的问题。从这一问题入手,来全面、准确地认识地球。
1、感悟地球的外在美
学生通过课前的观察图片,已初步感受到了地球的美,这时可再让他们从文字中去感受美。孩子们通过对其中词语的咸悟、多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。这时“面对如此美丽可爱的地球,我们人类把它称作什么?”这一问题的提出,让学生对地球的伟大有了初步的认知。
2、感受地球的内在美
“地球的内在美体现在哪?”这一问题的探究,让学生感悟到了地球为我们人类提供了各种各样的资源,对地球的伟大与无私奉献又有了更深一层的认识。
3、感受地球的渺小
通过以上两个环节,学生已认识到了地球的美丽与可爱,这时我又设计了这样的导语:是啊,地球是伟大,它无私地、慷慨地为人类提供了各种各样的资源,包括森林资源、水资源、生物资源、大气资源等,可是你知道吗——出示“地球又是一个半径只有6300多公里的星球,在群星璀璨的宇宙中就像一叶扁舟。”通过这个句子体会作者是采用数字说明和打比方的方法来写出地球的渺小,同时也会让学生更心疼地球。
4、地球的易碎性 (资源的枯竭)
地球像一叶扁舟,可就是这一叶小舟却载着60多亿人在茫茫的宇宙中行驶,它无私地、慷慨地为人类提供了各种各机关报资源,可我们人类呢?我们人类又是怎样对待它的?观看看到人类破坏地球的种种行为,并进行解说,看到美丽的家园伤痕累累,此时此刻,孩子们禁不住伤心愤怒,然后再引导学生从课文中找出地球妈妈易碎的原因,这时学生的情感又有了一定的升华,此时再引导他们结合生活中的现象来谈一谈自己的周围有哪些破坏环境的行为,学生更能有切切实实的感受。
网络信息,将文字形象化,将语文课堂与大千世界、生活实际紧密相连,正体现了“小语文、大社会”的教育理念。
5、地球的唯一性
“等有一天,地球上的资源枯竭了,我们便再也无法生存了,这时的我们该怎么办呢?我们能移居到别的星球上吗?”通过这一问题的解决,学生又对地球的唯一性,人类的不能移居有了更深的认识。
(三)升华情感
认识到了地球的唯一、人类的不能移居,再让孩子们联系自己的生活实际,交流讨论,为了保护地球,保护我们美丽的家园,我们应该做些什么。在交流讨论的过程中,相互启迪,碰撞出创新的火花。 “保护地球、保护地球的生态环境,”得到了共鸣,学生的情感认识得到了一定的升华。
(四)拓展迁移
当学生的情感认知有了一定的基础后,我又给学生观看了两条网上的信息,分别是‘布什总统抛弃东京议定书和布会总统不参加拯救地球的会议,让学生谈感受,并倡导他们给布什总统写劝说稿,这样的设计,使情感的抒发与语文实践活动就完美地结合起来了。这样的设计,既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。并且知识由课内延伸到课外,让课堂走进了社会,真正体现了大语文教学观。
之后,让学生畅谈“因为一个地球,所以我们……”这时学生内心的想法便自然而然的便是肺腑之言了。
《只有一个地球》一课的教学设计以建构主义理论为指导,根据新课标精神,使语文教学与媒体运用形成新的整合模式:利用网络资源,创设情景、感悟情境;利用文字信息,感悟质疑、理解升华;利用问题探究,把握要点、升华情感;利用实践活动,拓展迁移。最终达到意义建构,致力于学生语文素质的形成与发展。
《只有一个地球》第二课时说课稿篇四
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《只有一个地球》第二课时说课稿篇五
1、教学内容:
《只有一个地球》是九年义务教育六年制小学品德与社会六年级下册课本中第二单元第一课的内容,本课分两课时教学,第一课时内容是引导学生认识到地球为人类提供了生存与发展的基本条件,而且"只有一个地球",从而形成热爱地球、关爱地球、感激地球的情感。第二课时内容是让学生初步了解环境恶化、人口急剧增长、资源匮乏是当前地球所面临的重大问题,理解人与自然和谐共存的重要性,从而树立环保意识和社会责任感。下面我谈一下对第一课时的教学设想。
2、教材分析:
本单元以人类的家园为主线,将人类与其赖以生存的地球之间所存在的奉献与获取、建设与破坏、减灾与自护等方面的辩证关系和内容整合为一个单元。而本课《只有一个地球》第一课时则可以引导学生认识到地球为人类提供了生存与发展的基本条件,而且"只有一个地球",从而形成热爱地球、关爱地球、感激地球的情感。本课时话题切入口虽小,但知识含量大,较好地体现了课程的综合性,并注意将品德的形成与知识的学习相融合,使情感、态度、价值观的形成与知识技能的掌握相结合。学生通过学习可以初步学会在收集、处理信息的过程中,发现问题,思考问题并解决问题。
3、教学目标:
识记:认识到地球为人类提供了生存与发展的基本条件。
理解:深刻理解、体会"只有一个地球"的含义。
运用:通过学习,初步学会在收集处理信息的过程中,发现问题,思考问题,解决问题,并培养科学探究的精神。
情感:培养热爱地球、关爱地球、感激地球的情感。
4、教学重、难点:
重点:认识到地球为人类提供了生存与发展的基本条件。
难点:深刻理解、体会"只有一个地球"的含义,从而培养热爱地球,关爱地球,感激地球的情感。
教学方法是教师为完成教学任务而采取的方法,教学效果的好坏在很大程度上依赖于能否选择合适的教学方法。
教学本课,根据教材的特点,按照学生的认知规律,我打算采用以下教法:
1、情境教学法
给学生播放一段反映地球美丽富饶的录像,从而创设情境,从直观上激发学生热爱地球,关爱地球,感激地球的情感。
2、启发诱导法
苏联著名教育家苏霍姆林斯基说:"学习,并不是机械地把知识从教师头脑里灌输到学生头脑里,教师应努力达到学生思考的积极性。"
本课的教学,我采用边讲解、边提问的方法组织教学,循循善诱,层层深入,使学生在积极思维中获取新知。如:在学生观看了展示地球美丽富饶的录像后,我不失时机地引导学生结合自己的衣、食、住、行和休闲娱乐生活,说说地球给我们提供了什么,启发诱导学生去思考,从而激发学生产生对地球的感激之情,帮助学生理解人与自然和谐共存的重要性。
3、比较分析法
教学要得法,根本问题就是要使学生变被动为主动,成为学习的主人,有的优秀教师说得好:"要把演员的位置让给学生,自己去悉心钻研导演的艺术。"
而比较分析法则可以最大限度调动学生自主探究的积极性,不仅有助于突破学习中的难点,解开学习中的疑团,而且还可以培养学生的科学探究精神,训练他们自主解决问题的能力。如在教学中我让学生把自己搜集到的有关其他星球基本概况(温度,水分,氧气)的资料同地球给我们提供的生存条件进行比较、分析并展开讨论,从而论证出地球是人类唯一的家园。采用这种教法,可以激发学生主动参与、积极思考、变被动为主动,成为学习的主人,使不同层次的学生都能够在愉快的学习活动中各有所得。
现代教育对受教育者已经不仅仅是学到什么,更主要的是"学会怎样学习".因此要求教师不仅"供人以鱼",更要"授之以渔".
苏霍姆林斯基认为:"教给学生方法比教给学生知识更重要。"毛主席也曾作过一个生动形象的描述,他说:"我们不但要提出任务,而且要解决完成任务的方法问题。我们的任务是过河,但是没有桥或船就不能过,不解决桥或船的问题,过河就是一句空话。"为此,本节课我打算教给学生大胆质疑、探究解疑的学习方法。
作为学生学习活动的引导者、组织者,我在课上要为学生的自主学习和生动活泼的发展提供充分的空间,引导学生从自己的世界出发,用多种感官去观察、体验、感悟社会,获得对世界的真实感受。让学生在活动中探究,在探究中发现和解决问题,并及时鼓励学生的各种尝试和有创造性的思考,引导学生得出有价值的观点或结论。
同时,鼓励学生大胆假设,大胆质疑。如:我们是不是可以人为地创造出一个适合人类长期生存和发展的第二空间呢?进而引导学生去主动探究,查阅资料,展开辩论,寻找问题的答案。这样既可以培养学生的科学探究精神,又可以训练他们自主解决问题的能力。
(一)、导入新课
给学生播放一段反映地球美丽富饶的录像。
●看到这一个个美妙的画面,你此刻最想说的是什么?(学生通过语言表达自己对地球的热爱和感激之情。)
以上的设计,既创设了情境,又集中了学生思想,激发了求知欲。
(二)、探究新知
活动一 感悟地球的奉献
●请大家结合自己的衣、食、住、行和休闲娱乐生活,说说地球给我们提供了什么?可从以下几方面思考:(屏幕显示)
①、我们身上穿的衣服离不开哪些资源?
②、我们每天吃的食物离不开哪些资源?
③、我们的住房离不开什么资源?
④、我们的交通离不开什么资源?
⑤、我们喜欢的自然风光有哪些?
(生交流后汇报)
●是啊,地球慷慨无私地为人类提供了生存与发展的基本条件,她的确是人类的母亲,是生命的摇篮。
●(师生同唱《我们的田野》,通过歌词和旋律来进一步感受地球的奉献,并从心底由衷地感谢地球。)
在以上的教学中,我采用启发诱导法,引导学生从自己的生活自己的世界出发,用多种感官去观察、体验、动脑思考、感悟社会,获得对世界的真实感觉,这样不仅重视了获取知识的思维过程,同时也培养了学生的自学能力,观察思考能力。
活动二 论证地球是人类唯一的家园。
●我们的地球实在是太可爱了,但由于人类不加节制的开采和破坏,目前,地球上的各种资源都濒临枯竭。有人说:如果地球破坏了,我们不是可以移居到别的星球上去吗?请同学们围绕 "如果地球上资源枯竭了,我们能不能找到适合人类生存的第二个星球。"这一话题展开讨论。
学生拿出自己收集的一些有关其他星球基本情况(温度,水分,氧气)的资料与地球为我们提供的生存条件进行比较,并展开讨论分析:
①、月球和火星的温度,大气含氧量和水分状况能否满足人类生存的基本需求?
②、其他星球,如金星、木星等是否适合人类生存?
以上教学采用比较分析法,最大限度调动了学生自主探究的积极性。不仅有助于突破学习中的难点,解开学习中的疑团,而且,可以使学生变苦学为乐学,变被动为主动,成为学习的主人。
●到目前为止,除了地球之外,我们还没有找到适合人类生存与发展的其他星球,谁来救救人类?
(生质疑:那么我们是不是可以人为地创造一个适合人类长期生存与发展的第二个空间呢?)
①、让学生说一说他们的大胆假设和想法,其他学生对此提出质疑。
(展开小小辩论会。)
②、教师介绍"生物圈2号"实验基地以失败而告终的相关情况。让学生知道,在现有技术条件下,人类还无法模拟出一个类似地球的,可供人类生存的生态环境。
以上教学通过鼓励学生大胆假设、大胆质疑,并主动探究,去寻找答案,既可以培养学生的科学探究精神,又可以训练他们自主解决问题的能力。
●师小结:
迄今为止,至少在距离地球40万亿公里的范围内,科学家还没在找到第二个适合人类居住的星球,而且,在现有技术条件下,人类也无法模拟出一个类似地球的,可供人类生存的生态环境。所以,我们必须承认:"地球是人类唯一的家园","只有一个地球",如果地球被破坏了,我们将别无去处!作为地球母亲的孩子,热爱她,珍惜她,保护她是我们神圣的使命,也是我们唯一的选择。对于这一点,同学们作何感想?请说一说。
(生讨论交流,谈体会,表决心。)
最后突破难点,让学生通过谈感想,深刻理解、体会"只有一个地球"的含义,从而培养热爱地球、感激地球、珍爱地球的情感。
《只有一个地球》第二课时说课稿篇六
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《只有一个地球》第二课时说课稿篇七
《只有一个地球》是小学六年级语文上册第四组的一篇说明文。“只有一个地球”是一篇科学小品文,通过列数字、举例子、打比方等多种说明方法,从地球“美丽又渺小”、“资源有限”、“不能移居”这三方面介绍了地球的有关知识,阐明了人类的生存“只有一个地球”的事实,教育我们要精心保护这个唯一可以赖以生存的美丽星球,并以此呼吁人类应该珍惜资源,保护地球。
根据新课标的要求和学生的实际,我将本课的教学目标确定为:
1、学会本课的生字词,理解课文内容。
2、通过朗读课文,体会说明文用词的准确、严谨,学习一些常用的说明方法。
3、懂得“只有一个地球”的道理,激发珍爱地球、善待地球的情感,从小树立环保意识。
本课教学的重点是分析说明方法,体会说明文用词的精确。难点是明白人类的生存“只有一个地球”,懂得要珍惜资源、保护地球的生态环境。
新课标指出,阅读教学过程,是学生精心读书,获得个性体验和独特感受的过程,是老师引导学生不断实现自我构建,学会阅读,促进表达的过程。因此,应“积极倡导自主、合作、探究的学习方式”,充分发挥学生的主体作用,提高学生的语文素养。基于以上的认识,我在本课的教学中以品读感悟法,自主探究、合作交流法为主要教法,让学生从静态的文本中去感受跳跃的生命与涌动的激情,激发学生灵动的想象。此外,我还以情境教学法作为辅助教法,运用远程教学资源中的图片和视频创设情境,让学生直观感受课文所描述的内容,产生视觉、听觉乃至心灵的震撼,加深了对课文的理解和对现实的体验,使学生从文本走进生活。
《语文课程标准》指出:教师应创造性地理解和使用教材,积极开发课程资源,引导学生在实践中学会学习。基于新课程的理念,我在本课的教学中设计了“激情——导学——实践”等教学环节。
叶圣陶先生说过:“入境始于亲。”上课伊始,我在黑板上板书:只有一个—,让学生畅所欲言。之后,我提示学生:是啊,妈妈,爸爸,我……都是世上独一无二的,所以才让我们倍加珍惜与喜爱。但有一样东西,它是我们大家的,是不分民族,不分国籍,共同拥有的,你们知道它是什么吗?(边说边在黑板上画圆。估计学生会答:地球。),师(趁机引导):同学们答对了,它就是地球,今天,我们就一起走进它的世界。(在黑板上画圆的地方,贴上地球图)。接着,我就让学生观看课件所展示的地球美景,通过创设情境,激发学生的学习兴趣,达到“课伊始,趣亦生”的境界。而后,我问学生:“看了刚才的美景,你想对地球说什么?”学生们的思维一下子被激活了,课堂气氛显得轻松活泼,为后面各环节的教学作好铺垫。
1、学生自学
在充分调动学生学习兴趣的基础上,我运用课件出示自学提纲:
(1)用自己喜欢的方式自读课文,画出生字新词读一读。
(2)将自己最感兴趣、最想了解的问题写下来。
这一环节的设计,让学生自学,不仅突出了学生学习的主体地位,更能促进学生自学能力的提高。
2、小组学习
四人小组学习课文的生字新词,相互正音。然后,再交流自学中所遇到的各种问题。
学生小组学习,初步感知课文的主要内容,为深入学文做好准备。
3、师生共学
在鼓励孩子们质疑问难的基础上,师生共同梳理,归纳出三个探究主题。让学生选择自己感兴趣的主题进行深入探究,教师借机引导。
这里的教学体现了新课标所指出的“教师要为学生留出选择和拓展的空间,满足不同学生学习和发展的需要”。
(1)探究主题之一——地球可爱在哪里
当学生在选择这一主题进行探究学习时,首先让他们从朗读入手,去感受语言美。通过朗读课文,让学生加深对语言文字的独特体验,从中受到情感熏陶,感受地球的外在美。引导他们抓住“6300多公里”、“一叶扁舟”等关键词语,体会作者是采用数字说明、打比方的方法来写出地球的渺小。然后通过课件,让学生了解地球丰富的资源,使他们深刻认识到地球的美,不仅在于外观,更在于它对人类的慷慨奉献。
(2)探究主题之二——地球为什么太容易破碎了
当学生选择这一主题进行探究时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”。然后运用课件(影像),让他们目睹人类破坏地球的种种行径。看到美丽的地球伤痕累累,学生会禁不住伤心愤怒,发出和宇航员一样的感叹。这时再让他们结合生活中的现象,谈一谈自己的周围有哪些破坏环境的行为。
课件将枯燥的语言文字具体化、形象化,将语文课堂与大千世界、学生的生活实际有机结合起来,体现了“小语文、大社会”的教育理念,增强了教育的实效。
(3)探究主题之三——人类有没有第二个星球可供居住
当选择这一部分进行学习时,可引导学生抓住“至少”、“本来”等重点词语,体会说明文应用词语的准确性。接着,让他们展开讨论:“目前,人类还有可供居住的第二个星球吗?为什么?”此时学生相互交流课前搜集到的有关资料,彼此展开争论,课堂气氛会相当热烈,学生回答。
这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理信息的能力。
(三)实践
1、结束本课之前,让学生把最想说的话与其他同学进行交流。
这样,情感熏陶与语文实践活动就完美地结合起来了。既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。
2、让学生联系自己的生活实际,讨论并交流,为了保护地球,保护我们美丽的家园,我们应该做些什么。
在讨论交流的过程中,相互启迪,碰撞出创新的火花。
3、学完本课后,我设计了可供学生自主选择的实践性作业:制作一张环保手抄报
(这样的设计,使学生的学习由课内延伸到课外,让课堂走进了社会,走向生活,真正体现了大语文教学观。)
板书的设计,我采用学生感悟、教师归纳的方法,达到既精练又直观的效果。不仅突出了课文的重点,而且结构合理,给人以美的感受。
《只有一个地球》第二课时说课稿篇八
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《只有一个地球》第二课时说课稿篇九
人教版第十一册第三组教学内容是以环境保护为主题的,旨在通过一系列课文的学习,在掌握课文生字新词,积累语言的同时,理解课文内容,联系生活实际思考问题;同时,也为口语交际和习作做了铺垫,通过以“珍惜资源”为主题的口语交际活动,以及针对浪费资源和污染环境的现象写一份建议书或根据漫画写环保故事的习作练习,引导学生结合生活实际进一步认识珍惜资源、保护环境的重要性。
《只有一个地球》是本组第一篇课文,是一篇科学知识说明文。文章语言朴实、流畅,结构严谨,条理清楚,又饱含着深情。它通过地球“美丽又渺小”、“资源有限”等几个方面介绍了地球的有关知识,教育我们要精心保护这唯一赖以生存的美丽星球。
针对学生实际和本课的教材特点,我将教学目标定位在:
知识与能力:学会本课七个生字,能理解“渺小、矿产、恩赐、慷慨、枯竭、滥用、威胁”等词语;了解课文内容,体会说明文用语的准确、严谨,学习说明的方法;过程与方法:品析重点语句,联系现实生活实际,体会资源有限的根本原因;情感与价值:激发学生珍爱地球、善待地球的情感,从小树立环保意识。
教学重、难点:引导学生进行自主、个性化的探究阅读,达到教学目标提出的感受地球之美,从小树立环保意识的要求;体会说明文用语的准确、严谨。
基于教学目标的制定和重难点的提出,结合《新课标》理念,我采用了自读感悟、自主探究、合作交流、实践创新等学习方式,努力构建开放而有活力的新型语文课堂。始终体现学生是学习的主人,教师是学生学习伙伴中的首席。
以课后问题引导学习,讨论和交流,诱导学生读进课文中去,又从课文中想开去。
根据以上分析,我设计了情境激趣——选读探究——升华情感——拓展迁移的教学模式。
(一)情境激趣 叶圣陶先生说过:“入境始于亲。”在观看航天员杨利伟在神舟五号飞船上拍摄的地球美景时,我设计了一段导语,激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。而后,一句看似不经意的问:“地球,你还想称它为什么?”学生亲切的称呼,拉近了孩子们与地球的情感距离,为后面各环节的教学作好了情感铺垫。
(二)选读探究 在充分调动学生兴趣的基础上,我让孩子们用自己喜欢的方式自读课文,引导他们抓住地球太可爱,又太容易破碎这一切入点,将自己最感兴趣,最想了解的问题提出来,鼓励孩子们质疑问难。在师生的共同梳理下,归纳为三个探究主题。让孩子们选择自己感兴趣的主题进行深入的探究,教师相机引导。
这样设计,意在为学生留出选择和拓展的空间,满足不同学生学习和发展的需要。
1、地球的可爱
当学生在选择这一主题探究学习时,首先让他们从文字中去感受美。孩子们通过多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的“美丽壮观”、“和蔼可亲”、“慷慨无私”。引导学生抓住 “6300多公里”、“一叶扁舟”体会作者是采用数字说明和打比方的方法来写出地球的渺小。
2、地球的易碎
当学生选择这一主题探究时,引导他们通过自读,把握“矿产资源必将枯竭”、“再生资源不能再生”两个要点引导学生结合现实生活实际,感受人类破坏地球的种种行为,看到美丽的家园伤痕累累,发出和宇航员一样的感叹。将语文课堂与大千世界、生活实际紧密相连,正体现了“小语文、大社会”的教育理念。
3、地球的唯一性
当选择这一部分学习时,引导他们抓住“至少”、“本来”等词,体会说明文应用词准确,严谨。接着,让孩子们相互交流课前搜集的九大行星的资料和别的星球不适合人类居住的有关资料。这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理网络信息的能力。
(三)升华情感 这时,让孩子们把最想说的话与同学们交流,并通过网络在“小论坛”中发表。这样,情感熏陶与语文实践活动就完美地结合起来了。这样的设计,既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。
(四)拓展迁移 让孩子们联系自己的生活实际,交流讨论,为了保护地球,保护我们美丽的家园,我们应该做些什么。在交流讨论的过程中,相互启迪,碰撞出创新的火花。
学完这课,我设计了可由孩子们自主选择的作业。他们有的制作环保网页,有的发出环保倡议等,并且通过网络发送到网上去,在展示台展示,引起强烈的共鸣。
这样的设计,注重了跨学科的学习,由课内延伸到课外,让课堂走进了社会,真正体现了大语文教学观。
为求得在指导学生阅读的过程中使学生对全文的内容、主旨有一个明晰的了解,力求简单、明了,特作如下板书:
13.只有一个地球
美丽壮观
可爱 和蔼可亲
慷慨无私
无法移居—只有一个地球
矿产资源必将枯竭
易碎
再生资源不能再生
《只有一个地球》第二课时说课稿篇十
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《只有一个地球》第二课时说课稿篇十一
《只有一个地球》是人教版第十一册第三组的一篇科学知识说明文。朴实、流畅的语言,严谨的结构,清楚的条理,又饱含着深情,是这篇文章的特点。它通过地球“美丽又渺小”、“资源有限”、“不能移居”这三方面介绍了地球的有关知识,教育我们要精心保护这唯一可以赖以生存的美丽星球。
鉴于学生初步具备了利用网络获取知识的能力,课前让他们通过各种方式了解地球,并充分利用网络架起时空桥梁,搭起学生意义建构的“支架”,从而直观、形象地获取知识。
针对学生实际和本课的教材特点,我将教学目标定位在:
1、知识目标:学会本课七个生字,能理解“渺小、矿产、恩赐、慷慨、枯竭、滥用、威胁”等词语;了解地球的特点、有限的资源及人类的开发对地球产生的危害。
2、能力目标:培养学生初步的探究能力和搜集处理网络信息能力。
3、情感目标:激发学生珍爱地球、善待地球的情感,从小树立环保意识。
教学重、难点是:引导学生利用网络和信息技术,进行自主、个性化的探究阅读,达到教学目标提出的感受地球之美,从小树立环保意识的要求。
基于教学目标的制定和重难点的提出,结合《新课标》理念,我采用了自读感悟、自主探究、合作交流、实践创新等学习方式,努力构建开放而有活力的新型语文课堂。始终体现学生是学习的主人,教师是学生学习伙伴中的首席。
根据以上分析,我设计了情境激趣——选读探究——升华情感——拓展迁移的教学模式。
(一)情境激趣
叶圣陶先生说过:“入境始于亲。”在观看航天员杨利伟在神舟五号飞船上拍摄的地球美景时,我设计了一段导语,激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。而后,一句看似不经意的问:“地球,你还想称它为什么?”学生亲切的称呼,拉近了孩子们与地球的情感距离,为后面各环节的教学作好了情感铺垫。
(二)选读探究
在充分调动学生兴趣的基础上,我让孩子们用自己喜欢的方式自读课文,引导他们抓住地球太可爱,又太容易破碎这一切入点,将自己最感兴趣,最想了解的问题提出来,鼓励孩子们质疑问难。在师生的共同梳理下,归纳为三个探究主题。让孩子们选择自己感兴趣的主题进行深入的探究,教师相机引导。
这正体现了新课标指出的:教师要为学生留出选择和拓展的空间,满足不同学生学习和发展的需要。
1、地球的美
当学生在选择这一主题探究学习时,首先让他们从文字中去感受美。孩子们通过多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。引导学生抓住“6300多公里”、“一叶扁舟”体会作者是采用数字说明和打比方的方法来写出地球的渺小。
然后,进入相关网页,地球丰富的资源展现在学生的面前,使他们深刻地认识到地球的美,不仅在于它的外观,更在于它对人类的无私奉献。
2、地球的易碎性
当学生选择这一主题探究时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”,然后进入相关的网页,看到人类破坏地球的种种行为,看到美丽的家园伤痕累累,此时此刻,孩子们禁不住伤心愤怒,发出和宇航员一样的感叹。这时让学生观看地球妈妈遭到破坏的影像资料,再让他们结合生活中的现象来谈一谈自己的周围有哪些破坏环境的行为。
网络信息,将文字形象化,将语文课堂与大千世界、生活实际紧密相连,正体现了“小语文、大社会”的教育理念。
3、地球的唯一性
当选择这一部分学习时,引导他们抓住“至少”、“本来”等词,体会说明文应用词准确。接着,让孩子们相互交流课前搜集的九大行星的资料,再推荐相关网站让他们上网查阅,然后引导下载别的星球不适合人类居住的有关资料。这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理网络信息的能力。
(三)升华情感
这时,让孩子们把最想说的话与同学们交流,并通过网络在“小论坛”中发表。这样,情感熏陶与语文实践活动就完美地结合起来了。这样的设计,既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。
(四)拓展迁移
让孩子们联系自己的生活实际,交流讨论,为了保护地球,保护我们美丽的家园,我们应该做些什么。在交流讨论的过程中,相互启迪,碰撞出创新的火花。
学完这课,我设计了可由孩子们自主选择的作业。他们有的制作环保网页,有的发出环保倡议等,并且通过网络发送到网上去,在地球村展示台展示,引起社会的共鸣。
这样的设计,注重了跨学科的学习,由课内延伸到课外,让课堂走进了社会,真正体现了大语文教学观。
《只有一个地球》一课的教学设计以建构主义理论为指导,根据新课标精神,使语文教学与媒体运用形成新的整合模式:利用网络资源,创设情景;利用文字信息,感悟质疑;利用协作学习,升华情感;利用学科整合,拓展迁移。最终达到意义建构,致力于学生语文素质的形成与发展。
《只有一个地球》第二课时说课稿篇十二
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《只有一个地球》第二课时说课稿篇十三
本课的教学目标是:
1、了解淡水资源严重缺乏是当今世界面临的共同话题,了解森林资源骤减给人类带来的严重危害。
2、懂得节约用水和保护森林是每个公民应尽的义务。
3、树立环保观念,能为环境保护献计献策。
我今天说课的内容是中间一个环节,体验淡水资源的严重缺乏。前面讲到了水的重要性,可以说世界上的万物生长都离不开水。没有水就没有生命,既然水对于人类如此重要,那它是不是取之不尽,用之不竭的呢?答案无疑是否定的。那么我国可利用的淡水资源到底是多少呢?我们来举个例子:这是32块小磁铁组成的圆柱,代表世界上的水资源,包括海水和淡水。让学生猜一猜:世界上的淡水资源有多少?也就是这儿的几小块?学生自由猜一猜,当有学生说一块时,问问他是怎么知道的?然后揭出一小块大声告诉学生:这就是世界上60亿人口使用的淡水资源。可是,人类可直接利用的淡水资源大部分分布在南极和北极,被厚厚的冰川覆盖着。可直接利用的只占这里的0.3%。就是千分之三,你知道是多少吗?老师给大家看(揭下一小片碎片,告诉学生)这就相当于我国可直接利用的淡水资源。同学们,看到这里,你有什么想说的?(学生自由说感受)过度:正因为水资源如此缺乏,所以许多地区的人们至今还过着缺水的日子。你能想象他们过着怎样的生活吗?(课件播放视频片段:妈妈,我要喝水)观看后畅谈感受。
总结:同学们,看着他们那瘦弱的肩膀上晃荡的水桶,那一碗碗浑浊的水,那一张张失去童真的小脸,那特殊的洗脸方式。听着他们那一声声嘶声力竭地呼喊:妈妈,我要喝水,以及妈妈那无助的双眼,我们的心无比沉重。如果我们再不节约水资源,几十年甚至几百年后,我们的子孙也许也将过着这样令人无法想象的生活。所以,节约用水是我们每个公民应尽的义务。为了我们自己,为了我们下一代,为了那些因缺水而挣扎在死亡边缘的人们。让我们赶快行动起来吧!
我为什么这样设计呢?本课的关键词是:有限的资源。种种事实告诉我们,世界人口日益增长,而资源日益减少,所以保护资源迫在眉睫。为什么当今那么多孩子没有节水意识呢?我想那是因为他们对淡水资源的缺乏并不太了解。我们都知道地球上97%是海水,3%左右是淡水。可直接利用的只有3%的0.3%。空洞的讲解和数字的感知并不能在他们的头脑中烙下深深的印记。为了突破这一难点,我设计了“分割磁铁”这一活动,让学生在活动中切身体验到淡水是非常缺乏的。紧接着又让他们观看人们缺水的日子,让他们的心灵受到深深的震撼,如果再不节约用水,我们的后代将无法生活。从而激发节约用水的道德情感。
《只有一个地球》第二课时说课稿篇十四
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《只有一个地球》第二课时说课稿篇十五
《只有一个地球》是义务教育课程标准实验教科书六年级语文上册第四组的一篇文艺性说明文。“只有一个地球”,这是由1972年在瑞典首都斯德哥尔摩召开的人类环境会议提出的响亮口号,本文以此为题,采用科学小品文的形式,通过列数字、举例子、打比方等多种说明方法,从地球“美丽又渺小”、“资源有限”、“不能移居”这三方面介绍了地球的有关知识,阐明了人类的生存“只有一个地球”的事实,教育我们要精心保护这个唯一可以赖以生存的美丽星球,并以此呼吁人类应该珍惜资源,保护地球。条理清楚,语言朴实、流畅,用词严谨,表达生动,饱含深情,是这篇文章的主要特点。
根据本单元的训练重点、课标的要求、教材的特点和学生的实际,我将本课的教学目标确定为:
1、学会本课的生字新词。
2、培养自主探究的学习能力和搜集处理信息的能力。默读和朗读课文,理解课文内容,懂得“只有一个地球”的道理,激发珍爱地球、善待地球的情感,从小树立环保意识。
3、体会说明文用词的准确、严谨,学习一些常用的说明方法。
本课教学的重点,我定为引导学生利用所收集的资料,进行自主、个性化的探究阅读,明白人类的生存“只有一个地球”,懂得要珍惜资源、保护地球的生态环境。难点是通过联系实际思考问题,加深对课文的理解,并将保护地球的意识付诸行动。
新课标指出,阅读教学过程,是学生精心读书,获得个性体验和独特感受的过程,是老师引导学生不断实现自我构建,学会阅读,促进表达的过程。因此,应“积极倡导自主、合作、探究的学习方式”,充分发挥学生的主体作用,全面提高学生的语文素养。基于以上的认识,我在本课的教学中以品读感悟法,自主探究、合作交流法为主要教法,让学生从静态的文本中去感受跳跃的生命与涌动的激情,激发学生灵动的想象。此外,我还以情境教学法作为辅助教法,运用远程教学资源中的图片和视频创设情境,让学生直观感受课文所描述的内容,产生视觉、听觉乃至心灵的震撼,加深了对课文的理解和对现实的体验,使学生从文本走进生活。
六年级的学生已具有一定的阅读和收集信息的能力,因此,课前我布置学生预习课文,收集有关地球灾难及环保的资料。课堂上,我引导学生采用自读感悟、自主探究、合作交流等学习方法,放手让学生自读质疑,学生间互相交流、讨论,再结合远程教育资源,让学生自己去发现问题、探究问题、解决问题,最后明白“只有一个地球”的道理。整个教学过程努力构建开放而有活力的新型语文课堂,始终体现学生是学习的主人,教师是学生学习活动的组织者、引导者和参与者的新课程理念。
《语文课程标准》指出:教师应创造性地理解和使用教材,积极开发课程资源,引导学生在实践中学会学习。基于新课程的理念,我在本课的教学中设计了“激情——导学——实践”等教学环节。
(一)激情
叶圣陶先生说过:“入境始于亲。”上课伊始,我在黑板上板书:只有一个——,让学生畅所欲言。之后,我提示学生:是啊,妈妈,爸爸,我……都是世上独一无二的,所以才让我们倍加珍惜与喜爱。但有一样东西,它是我们大家的,是不分民族,不分国籍,共同拥有的,你们知道它是什么吗?(边说边在黑板上画圆。估计学生会答:地球。),师(趁机引导):同学们答对了,它就是地球 ,今天,我们就一起走进它的世界。(在黑板上画圆的地方,贴上地球图)。接着,我就让学生观看课件所展示的地球美景,通过创设情境,激发学生的学习兴趣,达到“课伊始,趣亦生”的境界。而后,我问学生:“看了刚才的美景,你想对地球说什么?”学生们的思维一下子被激活了,课堂气氛显得轻松活泼,为后面各环节的教学作好铺垫。
(二)导学
1、学生自学。
在充分调动学生学习兴趣的基础上,我运用课件出示自学提纲:
(1)用自己喜欢的方式自读课文,画出生字新词读一读。
(2)将自己最感兴趣、最想了解的问题写下来。
[设计意图:这一环节的设计,让学生自学,不仅突出了学生学习的主体地位,更能促进学生自学能力的提高。]
2、小组学习。
四人小组学习课文的生字新词,相互正音。然后,再交流自学中所遇到的各种问题。
[设计意图:学生小组学习,初步感知课文的主要内容,为深入学文做好准备。]
3、师生共学。
在鼓励孩子们质疑问难的基础上,师生共同梳理,归纳出三个探究主题。让学生选择自己感兴趣的主题进行深入探究,教师借机引导。
[设计意图:这里的教学体现了新课标所指出的“教师要为学生留出选择和拓展的空间,满足不同学生学习和发展的需要”。]
(1)探究主题之一——地球可爱在哪里
当学生在选择这一主题进行探究学习时,首先让他们从朗读入手,去感受语言美。通过朗读课文,让学生加深对语言文字的独特体验,从中受到情感熏陶,感受地球的外在美。引导他们抓住“6300多公里”、“一叶扁舟”等关键词语,体会作者是采用数字说明、打比方的方法来写出地球的渺小。 然后通过课件,让学生了解地球丰富的资源,使他们深刻认识到地球的美,不仅在于外观,更在于它对人类的慷慨奉献。
(2)探究主题之二——地球为什么太容易破碎了
当学生选择这一主题进行探究时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”。然后运用课件(影像),让他们目睹人类破坏地球的种种行径。看到美丽的地球伤痕累累,学生会禁不住伤心愤怒,发出和宇航员一样的感叹。这时再让他们结合生活中的现象,谈一谈自己的周围有哪些破坏环境的行为。
[设计意图:课件将枯燥的语言文字具体化、形象化,将语文课堂与大千世界、学生的生活实际有机结合起来,体现了“小语文、大社会”的教育理念,增强了教育的实效。]
(3)探究主题之三——人类有没有第二个星球可供居住
当选择这一部分进行学习时,可引导学生抓住“至少”、“本来”等重点词语,体会说明文应用词语的准确性。接着,让他们展开讨论:“目前,人类还有可供居住的第二个星球吗?为什么?”此时学生相互交流课前搜集到的有关资料,彼此展开争论,课堂气氛会相当热烈。
[设计意图:这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理信息的能力。]
(三)实践
1、结束本课之前,让学生把最想说的话与其他同学进行交流。
[设计意图:这样,情感熏陶与语文实践活动就完美地结合起来了。既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。 ]
2、让学生联系自己的生活实际,讨论并交流,为了保护地球,保护我们美丽的家园,我们应该做些什么。
[设计意图:在讨论交流的过程中,相互启迪,碰撞出创新的火花。]
3、学完本课后,我设计了可供学生自主选择的实践性作业:
(1)制作一张环保手抄报;(2)写一份环保倡议书;(3)做一次环保小宣传。
[设计意图:这样的设计,使学生的学习由课内延伸到课外,让课堂走进了社会,走向生活,真正体现了大语文教学观。]
11、只有一个地球
美丽,易碎
只有一个 资源有限 精心保护
不能移居
[设计意图:板书的设计,我采用学生感悟、教师归纳的方法,达到既精练又直观的效果。不仅突出了课文的重点,而且结构合理,给人以美的感受。]
远程教育资源的开发和利用,让农村的教育教学不再局限于一块黑板、一支粉笔和一本教材的教学模式,恰当地运用远程教育资源,使农村的小学课堂变得富有表现力和感染力。在本课的教学中,为了让优质的教学资源面向学生,服务教学,我从农村中小学现代远程教育项目所提供的三种模式中,因地制宜地选择相应的模式进行教学。因为农村的孩子相对城市的孩子来说,本身的知识面比较狭窄,搜集信息的能力也不太强,再加上这篇课文本身所讲的内容在一定层面上比较抽象,如果光靠教师解说是不能很好地展现出来的。教学时,我凭借中央电教馆资源共享库中查询到的有关地球的各种资源,结合学生特点,采用远教资源与网络资源相结合的办法,建构一个可观察、可体验、可参与、可互动的学习环境,为学生搭建一个良好的认知平台,让学生能在多种教学媒体的情趣氛围中,去明白人类的生存“只有一个地球”的事实,并能结合影像资料,联系实际思考问题,加深对课文的理解,也对今后的写作和口语表达能力的发展起到了促进作用。
以上是本人利用“农远”教育资源教学《只有一个地球》的一些设想,肯定有许多不足之处,请各位专家和同行们指教。谢谢!
《只有一个地球》第二课时说课稿篇十六
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《只有一个地球》第二课时说课稿篇十七
《只有一个地球》是义务教育课程标准实验教科书六年级语文上册第四组的一篇文艺性说明文。“只有一个地球”,这是由1972年在瑞典首都斯德哥尔摩召开的人类环境会议提出的响亮口号,本文以此为题,采用科学小品文的形式,通过列数字、举例子、打比方等多种说明方法,从地球“美丽又渺小”、“资源有限”、“不能移居”这三方面介绍了地球的有关知识,阐明了人类的生存“只有一个地球”的事实,教育我们要精心保护这个唯一可以赖以生存的美丽星球,并以此呼吁人类应该珍惜资源,保护地球。条理清楚,语言朴实、流畅,用词严谨,表达生动,饱含深情,是这篇文章的主要特点。
根据本单元的训练重点、课标的要求、教材的特点和学生的实际,我将本课的教学目标确定为:
1、学会本课的生字新词。
2、培养自主探究的学习能力和搜集处理信息的能力。默读和朗读课文,同学们通过理解课文内容,懂得“只有一个地球”的道理,激发珍爱地球、善待地球的情感,从小树立环保意识。
3、体会说明文用词的准确、严谨,学习一些常用的说明方法。
本课教学的重点,我定为引导学生利用所收集的资料,进行自主、个性化的探究阅读,明白人类的生存“只有一个地球”,懂得要珍惜资源、保护地球的生态环境。难点是通过联系实际思考问题,加深对课文的理解和分析,并将保护地球的意识付诸行动。
新课标指出,在阅读教学过程,是学生精心读书,获得个性体验和独特感受的过程,是老师引导学生不断实现自我构建,学会阅读,促进表达的过程。因此,应“积极倡导自主、合作、探究的学习方式”,我们要充分发挥学生的主体作用,全面提高学生的语文素养。
基于以上的认识,我们在本学期的教学中以品读感悟法,自主探究、合作交流法为主要教法,让学生从静态的文本中去感受跳跃的生命与涌动的激情,从而激发学生灵动的想象。此外,我还以情境教学法作为辅助教法,运用远程教学资源中的图片和视频创设情境,让学生直观感受课文所描述的内容,产生视觉、听觉乃至心灵的震撼,加深了对课文的理解和对现实的体验,使学生从文本走进生活。
具体的学法是:六年级的学生已具有一定的阅读和收集信息的能力,因此,课前我布置学生预习课文,收集有关地球灾难及环保的资料。课堂上,我引导学生采用自读感悟、自主探究、合作交流等学习方法,放手让学生自读质疑,学生间互相交流、讨论,再结合远程教育资源,让学生自己去发现问题、探究问题、解决问题,最后明白“只有一个地球”的道理。整个教学过程努力构建开放而有活力的新型语文课堂,始终体现学生是学习的主人,教师是学生学习活动的组织者、引导者和参与者的新课程理念。
《语文课程标准》指出:教师应创造性地理解和使用教材,积极开发课程资源,引导学生在实践中学会学习。基于新课程的理念,我在本课的教学中设计了“激情——导学——实践”等教学环节。
(一)激情
叶圣陶先生说过:“入境始于亲。”上课伊始,我在黑板上板书:只有一个——,让学生畅所欲言。之后,我提示学生:是啊,妈妈,爸爸,我……都是世上独一无二的,所以才让我们倍加珍惜与喜爱。但有一样东西,它是我们大家的,是不分民族,不分国籍,共同拥有的,你们知道它是什么吗?(边说边在黑板上画圆。估计学生会答:地球。),师(趁机引导):同学们答对了,它就是地球,今天,我们就一起走进它的`世界。(在黑板上画圆的地方,贴上地球图)。接着,我就让学生观看课件所展示的地球美景,通过创设情境,激发学生的学习兴趣,达到“课伊始,趣亦生”的境界。而后,我问学生:“看了刚才的美景,你想对地球说什么?”学生们的思维一下子被激活了,课堂气氛显得轻松活泼,为后面各环节的教学作好铺垫。
(二)导学
1、学生自学。
在充分调动学生学习兴趣的基础上,我运用课件出示自学提纲:
(1)用自己喜欢的方式自读课文,画出生字新词读一读。
(2)将自己最感兴趣、最想了解的问题写下来。
这一环节的设计,让学生自学,不仅突出了学生学习的主体地位,更能促进学生自学能力的提高。
2、小组学习。
四人小组学习课文的生字新词,相互正音。然后,再交流自学中所遇到的各种问题。
学生小组学习,初步感知课文的主要内容,为深入学文做好准备。
3、师生共学。
在鼓励孩子们质疑问难的基础上,师生共同梳理,归纳出三个探究主题。让学生选择自己感兴趣的主题进行深入探究,教师借机引导。
这里的教学体现了新课标所指出的“教师要为学生留出选择和拓展的空间,满足不同学生学习和发展的需要”。
(1)探究主题之一——地球可爱在哪里
而当学生在选择这一主题进行探究学习时,首先让他们从朗读入手,去感受语言美。通过朗读课文,让学生加深对语言文字的独特体验,从中受到情感熏陶,感受地球的外在美。引导他们抓住“6300多公里”、“一叶扁舟”等关键词语,体会作者是采用数字说明、打比方的方法来写出地球的渺小。然后通过课件,让学生了解地球丰富的资源,使他们深刻认识到地球的美,不仅在于外观,更在于它对人类的慷慨奉献。
(2)探究主题之二——地球为什么太容易破碎了
当学生选择这一主题进行探究时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”。然后运用课件(影像),让他们目睹人类破坏地球的种种行径。看到美丽的地球伤痕累累,学生会禁不住伤心愤怒,发出和宇航员一样的感叹。这时再让他们结合生活中的现象,谈一谈自己的周围有哪些破坏环境的行为。
课件将枯燥的语言文字具体化、形象化,将语文课堂与大千世界、学生的生活实际有机结合起来,体现了“小语文、大社会”的教育理念,增强了教育的实效。
(3)探究主题之三——人类有没有第二个星球可供居住
当选择这一部分进行学习时,可引导学生抓住“至少”、“本来”等重点词语,体会说明文应用词语的准确性。接着,让他们展开讨论:“目前,人类还有可供居住的第二个星球吗?为什么?”此时学生相互交流课前搜集到的有关资料,彼此展开争论,课堂气氛会相当热烈。
这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理信息的能力。
(三)实践
1、结束本课之前,让学生把最想说的话与其他同学进行交流。
这样,情感熏陶与语文实践活动就完美地结合起来了。既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。
2、让学生联系自己的生活实际,讨论并交流,为了保护地球,保护我们美丽的家园,我们应该做些什么。
在讨论交流的过程中,相互启迪,碰撞出创新的火花。
3、学完本课后,我设计了可供学生自主选择的实践性作业:
(1)制作一张环保手抄报;
(2)写一份环保倡议书;
(3)做一次环保小宣传。
这样的设计,使学生的学习由课内延伸到课外,让课堂走进了社会,走向生活,真正体现了大语文教学观。
本课教学时,我凭借中央电教馆资源共享库中查询到的有关地球的各种资源,结合学生特点,采用远教资源与网络资源相结合的办法,建构一个可观察、可体验、可参与、可互动的学习环境,为学生搭建一个良好的认知平台,让学生能在多种教学媒体的情趣氛围中,去明白人类的生存“只有一个地球”的事实,并能结合影像资料,联系实际思考问题,加深对课文的理解,也对今后的写作和口语表达能力的发展起到了促进作用。
《只有一个地球》第二课时说课稿篇十八
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《只有一个地球》第二课时说课稿篇十九
尊敬的各位评委老师:
大家好!
我是来自永吉县xxx中心校的教师,今天说课的内容是《只有一个地球》,具体程序如下:
《只有一个地球》是人教版第十一册第三组的一篇科学知识说明文,语言朴实、结构严谨,饱含深情,介绍了地球“美丽又渺小”,“资源有限”,“不能移居”三方面的有关知识,教育我们要精心保护这唯一可以赖以生存的美丽星球。
语文课是致力于学生语文素养的形成与发展,除了发展学生听、说、读、写的能力,还要培养学生适应未来信息社会所必备的收集和处理信息的能力。基于这样的认识,我在本课的教学中,有意识地将信息技术有效地引向语文教学的课堂,用信息技术手段将大量信息传递给学生,借助网络进行自主、个性化的探究阅读,在探究中理解,在理解上朗读。扣住课题“只有一个地球”感受地球之美,认识地球资源现状,升华对语言的感悟,激发发学生珍爱地球,善待地球的情感,从小树立环保意识,在提高学生听说读写能力的同时,综合能力也得到培养,从而达到信息技术与小学语文教学学科的有机整合。
根据以上分析,我设计了情境激趣----选读探究----升华情感----拓展迁移的教学模式。
(一)情境激趣
课的开始,我运用多媒体,借助网络呈现“地球”飘浮于太阳系的神奇美景,让学生对地球母亲有了初步的感知,既激发了学生学习的兴趣,又为下一个教学环节的切入找到了契机。
(二)选读探究
在充分调动学生兴趣的基础上,我让孩子们用自己喜欢的方式自读课文,引导他们抓住地球太可爱,又太容易破碎这一切入点,将自己最感兴趣,最想了解的问题提出来,鼓励孩子们质疑问难。师生共同归纳三个探究主题,让学生选择自己最感兴趣的主题进行深入的探究,教师指导,这正体现了:教师要为学生留出选择与拓展的空间,满足不同学生学习和发展的需要。
1.地球的美
当学生选择这一主题时,首先让他们从文字中去感受美。通过多种形式朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。引导学生抓住“6300多公里”“一叶扁舟”体会作者是采用列数字和打比方的方法写出地球的渺小的。然后借助网络,将丰富的地球资源展现在学生面前,使他们深刻认识到地球的美,不仅在于它的外观,更在于它对人类的无私奉献。
2.地球的易碎性
当学生选择这一主题时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”,然后借助网络,让学生观看人类破坏地球的种种行为,看到美丽家园被破坏,孩子们会禁不住发出和宇航员一样的感叹,再让他们结合生活中的现象谈一谈自己的周围有哪些破坏环境的行为。增强学生爱护环境,保护地球的意识。
3.地球的唯一性
当选择这一部分学习时,引导他们抓住“至少”、“本来”等词,体会说明文用词的准确性;接着,让孩子们相互交流课前收集有关行
星与别的星球不适合人类居住的有关资料,让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理信息的能力。
这时,让孩子们把最想说的话与同学们交流,这样,情感熏陶与
语文实践活动相结合,这样的设计,为学生创设了口语交际的机会,又培养了学生积极健康的情感,实现了语文的工具性与人文性的整合。
让孩子们联系自己的生活实际,交流讨论为了保护地球,保护我们美丽的家园,我们应该做些什么,在交流中,相互启迪,碰撞出创新的火花。
《只有一个地球》第二课时说课稿篇二十
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《只有一个地球》第二课时说课稿篇二十一
今天,我的说课内容是新课标人教版小学语文六年级上册第13课《只有一个地球》,下面,我说一说我对这篇课文的教学设计。
1、课文内容
《只有一个地球》一课是从人类生存的角度介绍地球的有关知识,阐明了人类生存“只有一个地球”的道理,说明保护地球生态环境的重要意义。课文层次分明、脉络清晰,全文融科学性、艺术性和思想性于一体,在介绍科学知识的同时,又能激发读者的情感,启迪读者的思想。
2、联系性
《语文课程标准》第三学段中明确指出:“阅读说明性文章,要抓住要点,了解文章的基本说明方法。”而在三、四年级学习的说明性文章的基础上,五年级第三单元正式提出学生应了解说明方法并在写作中应用,本册书则是在这一基础上又强调了说明语言的准确性和严谨性。可以说这篇文章是对小学阶段所学说明文知识的一个总结,但同时它也是七八年级完整进行说明文教学的一个铺垫。
(一)本课教学目标
知识能力:1、学会10个生字,正确读写词语。
2、默读课文,理解课文内容,懂得“只有一个地球”的道理
3、体会说明文用语的准确、严谨,学习说明文的方法。
过程方法:1、重点探究关键句,深入感悟主旨。
2、个性品读,把握主要内容,联系实际,深入思考。
情感态度价值观:1、增强学生爱护环境、保护地球的意识,从小树立环保理念。
(二)教学重点:明白人类的生存“只有一个地球”,懂得要珍惜资源,保护地球生态环境。
(三)教学难点:通过联系实际思考问题,加深对课文的理解,并将保护地球的意识付诸行动。
高年级的学生独立性较强,已经有了一定的预习能力和预习习惯,已具有一定的阅读和收集信息的能力,课前我布置学生预习课文,让他们通过各种方式了解地球,收集周边有关地球及环保的资料。搭起学生意义建构的“支架”,从而直观、形象地获取知识。
《语文课程标准》明确指出:“积极倡导自主、合作、探究的学习方式”,要充分发挥学生的主体作用,要全面提高学生的语文素养。基于以上认识,我选择情境教学法;讨论探究法;指导朗读法等教法,让学生在熟读的基础上理解内容,引导学生进行探究式学习,然后加以点拨,激发学生探索科学知识的兴趣。
(一)导入新课,明确目标(预计5分钟)
叶圣陶先生说过:“入境始于亲。”在观看学生收集的拍摄的地球美景时,我设计了一段导语,激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。然后明确本课学习目标。
激活了学生的思维,激发了学生的兴趣,达到了“课伊始,趣亦生”的境界。拉近了孩子们与地球的情感距离,为后面各环节的教学作好了情感铺垫。
(二)自学指导,整体感知(预计8分钟)
1、基础达标:
①默写:晶莹、和蔼可亲、资源、矿产、恩赐、枯竭、滥用、威胁、目睹。
②指导易错字:蔼、赐、竭
设计意图:检查学生预习情况,完成教学目标1(生字)
2、默读课文,根据提示,梳理脉络。
提示:课文写了关于地球的哪几方面的内容?
设计意图:帮助学生整体感知文章主要内容,并初步感知“只有一个地球”的道理,为后面深入探究做铺垫。突破教学目标2(内容)
(三)深入探究,回归系统(预计15分钟)
通过一个问题,三个部分来完成。
问题:为什么说“地球太可爱,又太容易破碎了?”
1、地球的美
当学生在选择这一主题探究学习时,首先让他们从文字中去感受美。孩子们通过多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。引导学生抓住“6300多公里”、“一叶扁舟”体会作者是采用数字说明和打比方的方法来写出地球的渺小。
然后,进入相关网页,地球丰富的资源展现在学生的面前,使他们深刻地认识到地球的美,不仅在于它的外观,更在于它对人类的无私奉献。同时指导朗读。
2、地球的易碎性
当学生选择这一主题探究时,引导他们通过自读,弄清地球上的“再生资源”和“不可再生资源”,然后进入相关的网页,看到人类破坏地球的种种行为,看到美丽的家园伤痕累累,此时此刻,孩子们禁不住伤心愤怒,发出和宇航员一样的感叹。这时让学生观看地球妈妈遭到破坏的资料,再让他们结合生活中的现象来谈一谈自己的周围有哪些破坏环境的行为。同时突破教学重点。
3、地球的唯一性
当选择这一部分学习时,引导他们抓住“至少”、“本来”等词,体会说明文应用词准确。接着,让孩子们相互交流课前搜集的九大行星的资料,再推荐相关网站让他们上网查阅,然后引导下载别的星球不适合人类居住的有关资料。这样的设计既让学生深刻理解了人类“不能移居”的原因,又初步培养了学生搜集、处理网络信息的能力。
(四)总结全文,拓展延伸(预计7分钟)
1、总结:“地球太可爱,又太容易破碎了”这一句即使全文基调,又可以成为整个单元的基调!
2、拓展:讨论:我们应该怎样保护地球?
设计意图:突破教学难点
作业:1、书写生字。2、制作环保手抄报。(据时间选作)
设计意图:深入落实本节课的教学目标六、说板书
13、只有一个地球
七、说反馈(教学共计36分钟,预留4分钟反馈)1、《只有一个地球》一课从人类生存的角度介绍的有关知识,阐明了人类生存“ ”的道理,说明的重要意义。
2、下面句子使用了什么说明方法?a、同茫茫宇宙相比,地球是渺小的。()b、映入宇航员眼帘的是一个晶莹的球体,上面蓝色和白色的纹痕相互交错,周围裹着一层薄薄的水蓝色“纱衣”。()c、地球,这位人类的母亲,这个生命的摇篮,是那样的美丽壮观,和蔼可亲。()d、地球是一个半径只有六千三百多千米的星球。()e、拿矿物资源来说,它不是上帝的恩赐,而是经过几百万年,甚至几亿年的地质变化才形成的。()
《只有一个地球》第二课时说课稿篇二十二
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《只有一个地球》第二课时说课稿篇二十三
《语文课程标准》中明确指出:“阅读说明性文章,要抓住要点,了解文章的基本说明方法。”就是让学生以读为本,把心放到文章中去,设身处地地多读多想多悟,理解作者所介绍的内容,了解课文的写法,从而体会作者所表达的情感。
《只有一个地球》是人教版第十一册第四组的一篇科学知识说明文。本单元的学习要求把握主要内容,联系实际深入思考,同时实际行动起来,为了我们家园的美好明天,尽自己一份力量。作为单元教学的第一课,在教学中实现单元教学要求对本单元的学习骑着引领的作用。
《只有一个地球》一课是从人类生存的角度介绍地球的有关知识,阐明了人类生存“只有一个地球”的道理,说明保护地球生态环境的重要意义。课文从宇航员在太空遥望地球所看到的景象写起,引出了对地球的介绍;接着,从地球在宇宙中的渺小、人类活动范围很小、地球的自然资源有限而又被不加节制地开采或随意毁坏等方面,说明地球面临着资源枯竭的威胁;然后,用科学家研究的成果证明,当地球资源枯竭时,没有第二个星球可供人类居住;最后得出结论:人类的选择只有一个,那就是精心保护地球,保护地球的生态环境。课文层次分明、脉络清晰,全文融科学性、艺术性和思想性于一体,在介绍科学知识的同时,又能激发读者的情感,启迪读者的思想。
本课用两课时完成,第一课时让学生学会生字、新词,初步了解课文的主要内容和说明文的写作顺序。具体学习体会地球的美丽又渺小。第二课时是深入理解课文内容,了解地球,“资源有限”、“不能移居”这两方面的知识,明确“只有一个地球”的事实。激发学生珍爱地球、善待地球的情感,树立环保意识。
知识目标:通过对文本的阅读领悟明确人类生存“只有一个地球”,懂得珍惜资源、保护地球的生态环境。
能力目标:通过联系实际思考问题,加深对课文的理解,并将保护环境的意识付诸行动。体会说明文用语的准确、严谨,学习说明方法。
情感目标:激发学生珍爱地球、善待地球的情感,从小树立环保意识。
教学重点:明白人类生存“只有一个地球”,懂得珍惜资源、保护地球的生态环境。
教学难点:通过联系实际思考问题,加深对课文的理解,并将保护环境的意识付诸行动。
学情分析:
我班学生有一定的思考、分析的能力,小组合作学习模式已经进行过一个学期,大多数学生敢于在交流和讨论中根据自己的阅读体会及已有的经验发表自己的看法,说出自己的感悟,并能够按照自己的理解,以自己特有的方式有感情的朗读课文。这些因素对本节课的教学特别是重难点的突破是非常有利的。
教法:
教学本课的重点是引导学生在自主阅读合作交流的过程中,领悟“只有一个地球”的道理。
1、引导学生合作讨论。
先给小组学习方法指导:小组合作读书,勾画重点词语谈感悟,结合资料谈感受。朗读表达感悟。
(通过小组合作讨论,融集学生学习的信息资源,加强沟通,共同探究,加深对课文内容的理解。)
2、引导学生朗读感悟。
本文是说明性文章,指导学生朗读这类作品,除了同朗读叙事性作品一样要注入自己的感情外,还要注意体现这类作品的逻辑力量。如,“在火星或者月球上建造移民基地。但是,即使这些设想能实现,也是遥远的事情。再说,又有多少人能够去居住呢?”一句,“但是”要强调,以引起人们对后面内容的重视,“即使”可强调,使人们感到,这种设想能否实现还是求知数,“又有多少人”要稍加强调,使人们认识到,即使在火星或月球上建造移民基地,能居住的也是极少的。在读中学生认识到了地球的唯一、人类的不能移居。对文章中的几处重点描写进行个性化的朗读,既可以表达出学生个人的情感,也可以与作者产生情感共鸣。
本节课树立以学定教的理念,以重视学生自学能力为主,通过学生自主、探究、合作的方式进行学习。因此在学法上是这样安排的:
1、小组合作学习课文的重点内容:地球自然资源有限和目前人类无法移居。小组从课文内容体会(重点词句的理解体会)到小组查找的资料补充进行交流理解,小组汇报。
2、情感朗读法。本文是说明性文章,指导学生朗读这类作品,除了同朗读叙事性作品一样要注入自己的感情外,还要注意体现这类作品的逻辑力量。如,“在火星或者月球上建造移民基地。但是,即使这些设想能实现,也是遥远的事情。再说,又有多少人能够去居住呢?”一句,“但是”要强调,以引起人们对后面内容的重视,“即使”可强调,使人们感到,这种设想能否实现还是求知数,“又有多少人”要稍加强调,使人们认识到,即使在火星或月球上建造移民基地,能居住的也是极少的。在读中学生认识到了地球的唯一、人类的不能移居。对文章中的几处重点描写进行个性化的朗读,既可以表达出学生个人的情感,也可以与作者产生情感共鸣。
3、联系实际学习法。在课文最后一段的学习中,联系实际让学生明白我们要精心保护地球,保护地球的生态环境。设计小练笔:你想对地球、人类或对自己说些什么?以此加深对课文主题“只有一个地球”的认识,内化自己的行动。
(一)复习旧知,导入新课:(2分钟)
上节课,我们一起初步学习了《只有一个地球》,了解到这篇课文作者采用抓住事物特点的几个方面的顺序来写,写了关于地球的哪些内容?学生边回答,老师边板书:
美丽,渺小
资源有限
不可移居
所以,遨游太空的宇航员发出感叹:我们的地球太可爱了,同时又太容易破碎了!”
上节课我们领略了地球的可爱,知道地球的可爱不仅在于外观的美丽,还在于地球的无私和慷慨。那么,为什么说同时,地球有太容易破碎了呢?这节课我们小组合作深入学习课文。
(二)小组选读,合作探究(25分钟)
小组自由选择学习地球太容易破碎(地球资源有限)
不可移居(唯一)
学习方法:小组合作读书,勾画重点词语或说明方法谈感悟;
结合资料谈感受。
通过朗读表达感悟。
小组汇报:
(1)找出“地球的容易破碎”具体体现在哪儿?引导学生通过重点词语“枯竭、滥用、再生”等弄清地球上的“可再生资源”和“不可再生资源”。
(2)结合资料汇报不可再生资源的不加节制地开采造成的后果。预设课件(煤矿,石油,天然气够用多少年)
交流中说道“不加节制”进行理解,朗读体会。感情朗读课文第三自然段。对比地球的无私和人类的自私。
同学们,几百万年,几千万年,甚至几亿年才能形成的资源被贪婪的无知的人们破坏着,你的心情怎样?带着感情朗读。(伤心,悲痛)自由读,指名读,齐读。
(3)结合资料汇报可再生资源的随意毁坏和滥用的后果。
结合课文重点词语谈感受时,随机出示“人类所需要的水资源、森林资源、生物资源、大气资源,本来是可以不断再生,长期给人类作贡献的。”本来一次可以去掉吗?为什么?教师总结“本来”一词体现了课文用词的准确性,突出了这些资源原先可以再生,强调了现在已经不可以再生。
预习时已查找过资料和图片,如果汇报时不够充分,教师预设准备:课件,森林资源的破坏和滥用化学品的危害,教师补充地球每天在发生着什么变化?课件,学生浏览
同学们,看着这些令人触目惊心的图片、资料,我仿佛看到地球在哭泣,你不想说点什么吗?(人类真是太残忍了,人类在毁灭自己)
带着情感朗读“人类生活所需要的……”
(过渡)听着你们的朗读,李老师的心情也很沉重。地球的资源是有限的,如果我们合理利用,她是可以不断为人类作贡献的。但由于人类的肆意破坏,已经使地球千疮百孔,也给人类带来了严重的威胁,可是我们中的大多数人也会说:(引读)“宇宙空间不是大得很吗,那里有数不清的星球,在地球资源枯竭的时候,我们不能移居到别的星球上去吗?”
请学习不可移居的小组汇报,随机出示课件。理解“至少”强调目前的研究成果还只限于这个范围,“40万亿千米”以外的情况还不能确定,体现说明的准确性。
是呀!如果地球被我们破坏了,我们别无去处,所以作者才说(引读)“只有一个地球”。
(三)、朗读文本,情感升华(5分钟)
同学们,我们只有一个地球!但我们可亲的地球妈妈,正在遭受着无情破坏我们的家园──这个水蓝色的星球太可爱了,同时又太容易破碎了,她需要我们一起去精心保护她。
请同学们带着对地球母亲的一片爱心,齐读最后一个自然段。
板书:珍惜资源,保护地球
(四)联系实际,拓展迁移(8分钟)
你想对地球、人类或对自己说些什么?为了保护地球,保护我们美丽的家园,我们应该做些什么?交流
千言万语汇成了一句──(板书课题)(生齐读)痛定思痛后只有一句──(生齐读)让我们的子子孙孙都记住──(齐读)
总之,《只有一个地球》一课的教学设计,根据新课标精神,使语文教学与信息搜集形成合力,主要采用小组合作学习模式,在合作学习中充分体现学生学习的自主性,通过朗读和拓展最终致力于学生的语文素质的形成与发展。
《只有一个地球》第二课时说课稿篇二十四
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《只有一个地球》第二课时说课稿篇二十六
尊敬的各位领导、专家、同行:
大家好!我今天说课的内容是《只有一个地球》,具体程序如下:
《只有一个地球》是人教版六年级上册第四组的一篇科学知识说明文。朴实、流畅的语言,严谨的结构,清楚的条理,又饱含着深情,是这篇文章的特点。它通过地球美丽又渺小、资源有限、不能移居这三方面介绍了地球的有关知识,教育我们要精心保护这唯一可以赖以生存的美丽星球。
鉴于学生初步具备了利用网络获取知识的能力,课前让他们通过各种方式了解地球,并充分利用网络架起时空桥梁,搭起学生意义建构的支架,从而直观、形象地获取知识。
针对学生实际和本课的教材特点,我将教学目标定位在:
1、知识与能力:有感情的朗读课文与默读课文相结合,感知课文内容,了解地球的有关知识,理解文章主旨;引导学生在阅读中体会说明文用语的准确、严谨、生动,学习说明文的写作方法;引导学生学习联系实际,深入思考的方法,加深对课文的理解,激发学生珍惜资源,保护地球的情感。
2、过程与方法:重点探究关键句,深入感悟文章主旨;个性品读,交流感悟,培养个性化阅读的习惯;品味语言,欣赏视频,直观感受,联系实际,提升情感。
3、情感、态度与价值观:懂得只有一个地球的道理,激发学生珍爱地球、善待地球的情感,从小树立环保意识。
重点是引导学生懂得只有一个地球的道理,增强珍惜资源、保护地球的意识。难点是通过联系实际思考问题,加深对课文的理解,并将保护地球的意识付诸行动。
基于教学目标的制定和重难点的提出,结合《新课标》理念,我采用了自读感悟、自主探究、合作交流、实践创新等学习方式,努力构建开放而有活力的新型语文课堂。始终体现学生是学习的主人,教师是学生学习伙伴中的首席。
根据以上分析,我设计了提出目标,导入新课自主、合作、探究整理归类升华情感拓展迁移的教学模式。
古人说:学贵有疑,小疑则小进,大疑则大进,无疑则不进。教学开始我给学生制定了一个学习目标,激活了学生的思维,激发了学生的兴趣,达到了课伊始,趣亦生的境界,使学生有目的的进行学习,并为学生学会概括文章的主要内容这种学习方法奠定基础。
在充分调动学生兴趣的基础上,我让孩子们回味自己读这篇文章的感受,引导他们抓住地球太可爱,又太容易破碎这一切入点,选择自己感兴趣的主题进行深入的探究,教师相机引导。
这正体现了新课标指出的:教师要为学生留出选择和拓展的空间,满足不同学生学习和发展的需要。
1、地球的可爱
当学生在选择这一主题探究学习时,首先让他们从文字中去感受美。孩子们通过多种形式的朗读和对文字的独特体验,从中受到情感熏陶,感受到地球的外在美。引导学生抓住6300多公里、一叶扁舟体会作者是采用数字说明和打比方的方法来写出地球的渺小。
然后,进入相关网页,地球丰富的资源展现在学生的面前,使他们深刻地认识到地球的美,不仅在于它的外观,更在于它对人类的无私奉献。
2、地球的易碎性
当学生选择这一主题探究时,引导他们通过自读,弄清地球上的再生资源和不可再生资源,抓住至少、本来等词,体会说明文应用词准确。然后根据自己查找的资料,看到人类破坏地球的种种行为,看到美丽的家园伤痕累累,此时此刻,孩子们禁不住伤心愤怒,发出和宇航员一样的感叹。这时让学生观看地球妈妈遭到破坏的影像资料,再让他们结合生活中的现象来谈一谈自己的周围有哪些破坏环境的行为。
网络信息,将文字形象化,将语文课堂与大千世界、生活实际紧密相连,正体现了小语文、大社会的教育理念。
结合板书,教授了学生概括文章主要内容的方法,体现了在阅读中教会学生学习的方法。
这时,让孩子们把最想说的话与同学们交流,这样,情感熏陶与语文实践活动就完美地结合起来了。这样的设计,既为学生创设了口语交际的机会,又培养了学生积极、健康的情感,实现了语文的工具性与人文性的整合。
观看视频,让孩子们联系自己的生活实际,交流讨论,为了保护地球,保护我们美丽的家园,我们应该做些什么。在交流讨论的过程中,相互启迪,碰撞出创新的火花。
学完这课,我设计了可由孩子们自主选择的作业。他们有的制作环保小报,有的发出环保倡议,有的写一篇200字的读后感,有的写保护环境演讲稿,有的画一幅环保宣传画等,并且通过网络发送到网上去,在地球村展示台展示,引起社会的共鸣。
这样的设计,注重了跨学科的学习,由课内延伸到课外,让课堂走进了社会,真正体现了大语文教学观。
我是把板书设计在一个地球的简笔画上的,让学生感受可爱与易破碎的易转化性,又利于了解文章主要内容。
《只有一个地球》一课的教学设计以建构主义理论为指导,根据新课标精神,使语文教学与媒体运用形成新的整合模式:利用网络资源,创设情景;利用文字信息,感悟质疑;利用协作学习,升华情感;利用学科整合,拓展迁移。最终达到意义建构,致力于学生语文素质的形成与发展。
《只有一个地球》第二课时说课稿篇二十七
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《只有一个地球》第二课时说课稿篇二十八
《我们只有一个地球》是人教版,六年级上册的第三单元第二课,本课介绍了人口、森林、水等问题,反映出人类对地球的破坏,已经威胁到了我们的生存,我们只有一个地球,我们必须保护好我们的生存环境。目的是培养学生从小懂得爱护环境,保护地球。
经过五年半的学习,六年级的学生已学过《只有一个地球》、《大瀑布的葬礼》等环保主题的课文,具备了一定的环保知识。依据学生的这一实际, 教学本课需要两课时。我说的是第二课时。
我根据课程标准,学生实际及教材特点来确定本节课的目标:
1、学生能说出人口、水、森林问题所带来的危害。
2、学生会讨论、交流怎样保护地球?
3、学生会用说、写、画等方式为环保献策。我是依据中英西南项目的要求来设计教学目标的,这样的目标具有可操作性、可检测性。
围绕教学目标及学生的身心发展规律,设计本节课的重难点是:初步了解环境恶化、人口剧增、资源匮乏是当前地球所面临的重大问题,理解人与自然和谐共存的重要性,培养学生保护环境的意识。
教学本课以学生为主体,教师为主导,运用合作、探究、迁移等教法,学生思、议、说、写、画等学法,来实现教学目标,突出重点,突破难点。
依据教材、学生实际,我设计以下教学活动。
活动一,创设情境、导入新课。
良好的开端是成功的一半,兴趣是最好的老师 ,我采用激趣导入法。先播放视频《我们只有一个地球》,来激起学生的学习兴趣,再相机板书课题。这样设计能调动学生看、听、说、想的积极性,使他们产生求知的欲望。万事开头难,于是我利用激趣导入为教学做好铺垫。
活动二、感受地球的环境变化。
有了铺垫,我便抓住时机,引导学生学习教材,感悟地球的无私奉献。播放多媒体课件,先展示出一家三口的幸福情境,再展示儿多母苦、穷困潦倒的生活画面,最后展示人口剧增,拥挤不堪的场面,学生通过对比,说出我国计划生育政策的好处。接下来播放青山绿水、鸟语花香的画面,再到污水排放、洪水来临的情境,引导学生悟出水污染的问题。幻灯展示茂密的森林、过度砍伐的树桩再到山体滑坡的图片,学生自悟出森林的作用。
通过对比,学生深刻地体会到地球母亲从美丽诱人到遍体鳞伤的变化过程。照这样下去,地球妈妈的将来会是什么样子?这个问题能让学生的想象力得到充分发挥。孩子们在丰富的想象中感受到地球的无私奉献,同时感受到保护环境的重要性。
活动三,增强学生的环保意识。
有了活动二的鲜明对比,此时播放视频《地球妈妈的心声》,让学生感受地球妈妈急需我们拯救的呼声。于是我提问“同学们看了视频有什么疑问?”指导学生带着疑问阅读资料。这一安排培养了学生的自学能力,也转变了教师的角色。引导学生讨论水污染、森林急剧减少、人口的爆炸性增长的问题,是什么原因导致这种现象?这种现象给我们生活带来哪些影响?这种追根溯源的提问法,培养了学生发现问题、分析问题、解决问题的能力。我们面对这些问题该怎么办呢?让学生在讨论、交流的过程中解决问题。是啊!地球母亲哺育了我们,现在她需要我们的帮助,我们该怎样回报她呢?此时我便抓住学生的心理活动,播放《爱的奉献》这首歌,学生在歌词和旋律的陶冶下,进一步感受地球的无私奉献,来唤起我们保护地球的行动。
活动四,作业超市
通过今天的学习,我们应该怎样保护地球?学生根据自己个性,来选择说、写、画、唱等方式。在音乐声中完成作业超市。这个活动的设计,既发挥了学生的特长,又升华了情感,为学生的个性化发展提供了平台,使整个教学活动在轻松愉快的氛围中完成。让学生在接受品德教育的同时,学会与自然和谐共处,这个活动的设计,为学生的个性发展打下基础。
我们只有一个地球
人
威胁生存 保护地球
水
森林
好的板书是课文内容的缩影,帮助学生理解教学内容。让学生看着板书,再现知识。我采用这样的板书简洁美观,条理清楚。
根据新课程标准,使品德教学与多媒体运用,形成新的整合模式:利用视频,创设情景;利用文字信息,感悟质疑;利用音乐,升华情感;利用学科整合,拓展迁移等。这样的设计适合学生身心发展特点,能实现教学目标,我是按照中英西南项目的要求,来确定教学目标的,我所设计的目标具有检测性、可操作性。
无论是视频导入还是伴随音乐的结尾,都使课堂气氛非常活跃,让学生在轻松愉快的氛围中学习,为学生的全面发展打下基础,最终实现教学目标。