苏教版小学科学三年级上册《地球上的水》课堂观察报告.doc

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1、苏教版小学科学三年级上册地球上的水课堂观察报告地球上的水课堂实录与评析地球上的水课堂观察报告一、 认识水在地球上的分布 1、学生对地球上水的分布的认识，是教师引导学生课下查阅资料和调动学生已有知识经验一步步建构起来的，而不是直接灌输给学生。多媒体课件的适时应用，生动形象地展示了地球上水的分布，不仅激发了学生的学习兴趣，还有利于学生进一步感知、理解、记忆，同时还渗透了美的教育。不足的是对南北极冰川中水的认识启发不够就提出自己的观点。2、从太空中观察地球上的水这一环节的教学，不仅渗透了我国航天技术的先进成果，还体现了引导学生学习从部分到整体的认识事物的方法，更主要是有利于引导学生形象地认识地球是一

2、个水球这一知识。此环节设计起到了多方面作用，并且也是引导学生一步步进行建构的。二、认识淡水资源的匮乏教师在引导学生查阅资料的基础上，通过课件演示和讲解使学生认识淡水资源的分布和占有量。这一环节的教学设计是在学生主动建构的基础上，教师帮助建构，体现了教师引导和帮助的职责。三、 认识水污染和水浪费现象1、从仅有的一点淡水资源仍不能完全被人类利用引出水污染和水浪费现象，很自然地过度到要研究的问题。2、通过讲述发生在我国的重大水污染事件的事实说明水污染现象很有说服力。3、通过讲述发生在我国的重大水污染事件的事实说明水污染现象很有说服力。4、在学生讨论的基础上，教师补充使学生认识更全面、深刻。 结束语！

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