“计算机(儿童)-2014年秋-定福小学-第二次活动-课程提纲”的版本间的差异

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<span style="font-weight: 700; font-size: large; color: rgb(0, 0, 0); line-height: 21px; font-family: Tahoma;">计算机第二次课教案:键盘鼠标基本操作、基本键位</span>
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<div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;"><font size="4" style="word-wrap: break-word;"><font style="word-wrap: break-word; background-color: rgb(255, 250, 205);"><span style="word-wrap: break-word; font-weight: 700;">第一堂课</span><span style="word-wrap: break-word; font-weight: 700;">共</span><span style="word-wrap: break-word; font-weight: 700;">50</span><span style="word-wrap: break-word; font-weight: 700;">分钟</span></font></font></font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">课堂交流【1、2、3】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">复习和引入【4、5】20分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">讲解和演示【6(1)】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">练习【6(2)】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><br/></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">一、授课目标:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;操作鼠标:掌握标准(3键)鼠标的操作。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">二、准备材料:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;硬件:笔记本电脑、音箱、U盘自备</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;软件:WPS office等、搜狗拼音输入法确认安装</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;其它:彩笔</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">三、授课大纲:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;1.自我介绍:-2'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp; 向同学介绍自己的昵称、职业、爱好等。建议助教老师也都提前准备2句话,向同学介绍自己,拉近关系。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;2.认识孩子们:-3'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp; 点名,发放名字卡片。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;3.我们的约定:-5'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;对这学期的课程,和同学们做一个约定,内容包括:</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)我们的计算机课课堂最好是什么样的?</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(2)提出要求</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(3)明确出勤和课堂纪律</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(4)给予承诺</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;4.复习上一次课堂的内容:-10'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;复习内容是“计算机的组成”,提到输入输出设备时可以重点讲解鼠标和键盘,然后顺理成章地衔接到本节课的内容。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)大家的自我介绍,使用excel展示,演示填写一位同学的自我介绍。大家可以继续思考,把自己的“自我介绍”完善起来,可以在每次课间都找主讲老师填写。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(2)计算机由哪些部件组成?外部设备有哪些?机箱内部都有什么部件?它们都起到什么作用?向同学提问的方式,辅助ppt演示,ppt我会在周四给出)</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;5.引入本节课的内容:-10’</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;提问—计算机由这么多的部件组成,那我们对计算机下达命令,最常使用的是什么部件? (引出键盘、鼠标两大输入设备,讲故事做比喻的方法,让同学们理解键盘鼠标的作用。)</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)键盘就像我们对计算机说话一样,用文字的方式对它发出命令……巴拉巴拉</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"></div>
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<font face="Tahoma" style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; line-height: 21px;"><font size="4" style="word-wrap: break-word;"><span style="word-wrap: break-word; font-weight: 700;">计算机第二次课教案:键盘鼠标基本操作、基本键位</span></font></font><br/><br/>
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<div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;"><font size="4" style="word-wrap: break-word;"><font style="word-wrap: break-word; background-color: rgb(255, 250, 205);"><span style="word-wrap: break-word; font-weight: 700;">第一堂课</span><span style="word-wrap: break-word; font-weight: 700;">共</span><span style="word-wrap: break-word; font-weight: 700;">50</span><span style="word-wrap: break-word; font-weight: 700;">分钟</span></font></font></font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">课堂交流【1、2、3】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">复习和引入【4、5】20分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">讲解和演示【6(1)】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">练习【6(2)】10分钟</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><br/></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">一、授课目标:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;操作鼠标:掌握标准(3键)鼠标的操作。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">二、准备材料:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;硬件:笔记本电脑、音箱、U盘自备</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;软件:WPS office等、搜狗拼音输入法确认安装</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;其它:彩笔</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><span style="word-wrap: break-word; font-weight: 700;"><font face="Tahoma" style="word-wrap: break-word;">三、授课大纲:</font></span></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;1.自我介绍:-2'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp; 向同学介绍自己的昵称、职业、爱好等。建议助教老师也都提前准备2句话,向同学介绍自己,拉近关系。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;2.认识孩子们:-3'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp; 点名,发放名字卡片。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;3.我们的约定:-5'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;对这学期的课程,和同学们做一个约定,内容包括:</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)我们的计算机课课堂最好是什么样的?</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(2)提出要求</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(3)明确出勤和课堂纪律</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(4)给予承诺</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;4.复习上一次课堂的内容:-10'</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;复习内容是“计算机的组成”,提到输入输出设备时可以重点讲解鼠标和键盘,然后顺理成章地衔接到本节课的内容。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)大家的自我介绍,使用excel展示,演示填写一位同学的自我介绍。大家可以继续思考,把自己的“自我介绍”完善起来,可以在每次课间都找主讲老师填写。</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(2)计算机由哪些部件组成?外部设备有哪些?机箱内部都有什么部件?它们都起到什么作用?向同学提问的方式,辅助ppt演示,ppt我会在周四给出)</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp;&nbsp;5.引入本节课的内容:-10’</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;提问—计算机由这么多的部件组成,那我们对计算机下达命令,最常使用的是什么部件? (引出键盘、鼠标两大输入设备,讲故事做比喻的方法,让同学们理解键盘鼠标的作用。)</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;">&nbsp; &nbsp;&nbsp; &nbsp;(1)键盘就像我们对计算机说话一样,用文字的方式对它发出命令……巴拉巴拉</font></div><div align="left" style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: Tahoma, 'Microsoft Yahei', SimSun, sans-serif; font-size: 14px; line-height: 21px;"><font face="Tahoma" style="word-wrap: break-word;"></font></div>
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2015年1月27日 (二) 15:22的最后版本

计算机第二次课教案:键盘鼠标基本操作、基本键位


第一堂课50分钟
课堂交流【1、2、3】10分钟
复习和引入【4、5】20分钟
讲解和演示【6(1)】10分钟
练习【6(2)】10分钟

一、授课目标:
  操作鼠标:掌握标准(3键)鼠标的操作。
二、准备材料:
  硬件:笔记本电脑、音箱、U盘自备
  软件:WPS office等、搜狗拼音输入法确认安装
  其它:彩笔
三、授课大纲:
  1.自我介绍:-2'
    向同学介绍自己的昵称、职业、爱好等。建议助教老师也都提前准备2句话,向同学介绍自己,拉近关系。
  2.认识孩子们:-3'
    点名,发放名字卡片。
  3.我们的约定:-5'
      对这学期的课程,和同学们做一个约定,内容包括:
      (1)我们的计算机课课堂最好是什么样的?
      (2)提出要求
      (3)明确出勤和课堂纪律
      (4)给予承诺
  4.复习上一次课堂的内容:-10'
      复习内容是“计算机的组成”,提到输入输出设备时可以重点讲解鼠标和键盘,然后顺理成章地衔接到本节课的内容。
      (1)大家的自我介绍,使用excel展示,演示填写一位同学的自我介绍。大家可以继续思考,把自己的“自我介绍”完善起来,可以在每次课间都找主讲老师填写。
      (2)计算机由哪些部件组成?外部设备有哪些?机箱内部都有什么部件?它们都起到什么作用?向同学提问的方式,辅助ppt演示,ppt我会在周四给出)
  5.引入本节课的内容:-10’
      提问—计算机由这么多的部件组成,那我们对计算机下达命令,最常使用的是什么部件? (引出键盘、鼠标两大输入设备,讲故事做比喻的方法,让同学们理解键盘鼠标的作用。)
      (1)键盘就像我们对计算机说话一样,用文字的方式对它发出命令……巴拉巴拉

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