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丁伟豪 | Excel 2003中的排序功能

  • 2026-05-11 22:43:16
丁伟豪 | Excel 2003中的排序功能

本节课讲授的是Excel 2003中的基本排序功能,教学内容围绕“主要关键词排序”展开,教学流程包括案例导入、操作演示、学生练习、巡视指导、纠错扩展和知识点回顾。整体来看,教学目标基本达成,学生对排序操作有了初步掌握,但在教学过程中也暴露出一些值得深思和改进的问题。

一、教学内容

首先,案例选择贴近学生生活。本节课使用了“演讲比赛单项排名”和“全国降雨统计表”两个案例,前者贴近校园活动,后者联系实际生活,能够激发学生的学习兴趣。在导入环节,我通过提问“如何快速找出会场效果最好的选手”和“如何快速找出降雨总量最少的城市”,引导学生思考排序的实际意义,效果较好。

其次,演示操作步骤清晰规范。在演示环节,我严格按照“选中关键词所在单元格→数据菜单→排序→选择主要关键词→升序/降序”的流程操作,并投屏到学生电脑,确保每位学生都能清楚看到操作过程。同时,强调了排序前要确保数据区域完整,避免排序错乱,这些细节对初学者非常重要。

第三,练习设计针对性强。练习任务与演示案例高度一致,学生能够将所学操作迁移到新任务中。练习过程中,我进行了巡视指导,发现并纠正了学生的一些典型错误,如未正确选中数据区域、混淆升序与降序等。

二、教学中存在的问题与不足

尽管整体教学效果尚可,但在以下方面仍有明显不足:

1. 学生对“排序区域”的概念理解不够深入。

在练习过程中,有部分学生直接选中了“会场效果”这一列进行排序,导致其他列的数据没有跟随移动,出现了“错位”现象。这说明我对“排序是对整行记录的重排”这一关键点强调不够。虽然纠错环节进行了讲解,但部分学生已经操作错误,需要撤销重做,影响了练习效率。

2. 升序与降序的理解存在混淆。

在“全国”工作表中,要求按“合计”由低到高排序(即升序),但有学生误选了降序。这说明在教学中,我应该更清晰地解释“升序=从小到大、从低到高”“降序=从大到小、从高到低”,并结合生活中的例子(如成绩排名、价格排序)帮助学生建立直观理解。

3. 扩展内容演示时间略显仓促。

在纠错和扩展环节,我演示了排序的另一种方法:选中关键词所在列→数据菜单→排序→扩展选定区域→选择主要关键词→升序/降序。

4. 个别学生操作进度差异较大。

学生之间的计算机操作基础差异明显。部分学生很快就完成了练习任务,而另一部分学生在选中区域、打开菜单等基本操作上仍显生疏。今后应考虑分层教学,为学有余力的学生提供拓展任务(如按多关键词排序),同时为基础薄弱的学生提供更多一对一指导。

三、对未来教学的改进建议

强化“排序区域”概念教学。在演示时,可以先故意演示一种错误操作(只选单列排序),让学生观察错位现象,再纠正,加深印象。

增加对比练习。设计同时包含升序和降序要求的练习任务,让学生在同一节课内完成两种排序,强化对比理解。

关注个体差异。对基础薄弱的学生安排“小老师”结对帮助,同时为学优生提供多关键词排序等进阶任务。

四、总结

本节课基本完成了预定的教学任务,学生对Excel排序功能有了初步认识和操作体验。但在概念理解、个体差异应对、时间分配等方面仍有改进空间。教学不仅是知识的传授,更是对学生思维方式和操作习惯的引导。今后我将更加注重操作的规范性和概念的清晰度,同时关注每一位学生的学习状态,努力提升课堂教学的实效性。

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  1. CONNECT:[ UseTime:0.000737s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000905s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000325s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000301s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000515s ]
  6. SELECT * FROM `set` [ RunTime:0.000195s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000533s ]
  8. SELECT * FROM `article` WHERE `id` = 508577 LIMIT 1 [ RunTime:0.001311s ]
  9. UPDATE `article` SET `lasttime` = 1779132062 WHERE `id` = 508577 [ RunTime:0.007440s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000307s ]
  11. SELECT * FROM `article` WHERE `id` < 508577 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000433s ]
  12. SELECT * FROM `article` WHERE `id` > 508577 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000496s ]
  13. SELECT * FROM `article` WHERE `id` < 508577 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000953s ]
  14. SELECT * FROM `article` WHERE `id` < 508577 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007002s ]
  15. SELECT * FROM `article` WHERE `id` < 508577 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000685s ]
0.091631s