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1、教学内容第1课 信息和信息技术课型新授课教学时间829-902教材来源人教版信息技术七年级上册第一单元 初步知识与基本操作教学目标知识与技能:1知道信息的重要性。 2知道信息技术在日常生活和学习中的一些应用。 3初步了解计算机的应用。过程与方法:通过古代与现代信息的接收、存储、处理以及传递信息的对比,充分加以说明随着社会的发展和科学技术的进步,接受与传递信息的手段越来越先进,信息传播的速度也越来越快。情感态度价值观:本节课通过谈及一些学生感知,感兴趣的话题,如烽火烟火等,充分调动学生的积极性,为今后的学习本学科奠定良好的基础。教学重点本课的重点是了解信息技术在现代社会中的应用。教学难点教学难点
2、是认识信息技术从古至今的发展变化。 教学方法引导讲解,示范演示、讨论交流法、自主探讨法教学用具多媒体计算机 、课件教学课时2课时教学结构1 我们身边的信息2 信息的接受和传递3 信息技术及其应用4 常见的信息处理工具5 计算机的应用板书设计第1课 信息和信息技术一、 我们身边的信息信息就是通过语言、文字、声音、图形、图像以及其它一些方法传送的消息。二、 信息的接收和传递信息是无形的东西,必须借助某种符号才能表现出来,而符号必须通过媒介才能保存、传递和交流。三、 信息技术及其应用习惯上,把人们接收、存储、处理、传递信息的能力叫做信息能力,把可以扩展人类信息能力的技术称为信息技术(简称IT)。1、
3、 传感技术2、 通信技术3、 计算机技术四、常见的信息处理工具五、计算机的应用用计算机可以绘制、处理各种图像;可处理文字,录制、播放音乐,可以上网,除了以上这些与我们的学习生活有密切关系的应用外,计算机还有很多应用,已经深入国防、科研、管理、生产等领域。教学过程教师活动学生活动设计意图一、导入新课提问学生:“今天是我们的第一节课,大家知不知道我们这门课叫什么?”教师设疑:为什么以前叫电脑课,现在改为信息技术课,什么是信息、什么是信息技术?引入新课。二、讲授新课1、信息的概念提问:你从网页中的这些图片和录像中,能了解什么东西?(网页有几幅从报纸中扫描得到新闻照片和一段录像。如农民喜获冬瓜丰收的照
4、片,三峡第二发电组顺利启动的新闻录像)。教师出示照片相应的说明文字,大家看了这些文字,是不是对照片的内容有了更多、更深刻的认识。归纳:刚才大家从图片、影像和文字中感受到的东西就是我们从这些媒体中得到的信息。事实上,我们在现实生活中,无时无刻都在接触信息。提出信息的概念。提问:你们在生活周围中曾获得过哪些信息?归纳:信息是客观存在的,人类就生活信息的海洋之中,无时无刻地在接受信息,但有些信息对我们来讲是有用的,有些是无用的,要学会怎样去获取有用的信息。2、进行讨论活动完成下面的题目:(2选1)如果你要买一台电脑,你需要了解哪些信息,你准备通过哪些途径去获取这些信息。假如现在是2008年,你准备去
5、北京观看奥运会,你需要了解哪些信息,你可以通过哪些途径去获取这些信息。3信息技术的概念针对学生的回答进行点评,总结。提出问题:怎样更好地去获取和利用有用的信息?登录佛山气象台的网站,说明气象信息的获取、加工和利用过程,引入信息技术概念。三、布置作业信息与信息技术和我们的学习有什么关系?四、课堂小结在信息时代,谁感知到、认识到并拥有大量有价值的信息,谁就拥有成功的机会。如果你想成为社会发展所需要的人才,就需要具备收集、整理、传递、发布、应用信息的能力。这就需要我们学好这门课信息技术,这也就我们这门课由电脑课改为信息技术课的主要原因。学生回答:“电脑课”、“计算机课”,少数同学能够说出“信息技术课
6、”。浏览教师提供的图片和录像。进行讨论,发挥自己的想像力,回答出不同的答案。进行讨论学生讨论并回答问题:从电视、报纸、广播、互联网、家庭、学校、社会等各方面回答。学生在论坛里相应话题下面发表自己的见解。有电脑市场、电脑书籍、电脑专家、教师、朋友、互联网等等。回答有报纸、旅游社、地图产、互联网、朋友、电视台、打电话了解等等。进行讨论浏览教师提供的有关气象预报知识的网页。要求学生通过讨论或上网查找资料,下节课在网络平台上上交自己的作业。通过设疑,让学生能够积极的动脑。由老师提供的图片与影像,充分发挥学生的想像力,让学生主动学习起来。通过各方面的说明,学生总结出“信息”的定义。谈及学生感兴趣的话题,
7、从而让学生理解信息技术的概念。课后反思本节课的教学主要通过出示图片、录像、文字等让学生潜移默化的理解信息的概念。本节课我以激发“兴趣”为总旨,让学生从第一节课开始喜欢信息技术这门学科。俗话说:“兴趣是最好的老师”。希望我的学生们在我的陪伴下,今后在愉悦的氛围中快乐学习、成长。 tGZ7R4I30kA1DkaGhn3XtKknBYCUDxqA7FHYi2CHhI92tgKQcWA3PtGshLs50cLmTWN60eo8Wgqv7XAv2OHUm32WGeaUwYDIAWGMeR4I30kA1DkaGhn3XtKknBYCUDxqA7FHYi2CHhI92tgKQcWA3PtGZ7R4I30kA
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