中文摘要：

通过对“北京高校第六届青年教师教学基本功比赛”中选手的课堂案例进行质化研究，利用NVIVO软件对课程逐字稿以及课后访谈稿进行分析，萃取出教学演示PPT背后所使用的软件对整个课堂教学所起到的支撑作用，对其按照图表制作软件、音频制作软件以及视频制作软件进行了分类，并对其在课堂教学中的效果及所适用的课程进行了举例分析。

英文摘要：

Based on the classroom teaching cases of the 6th Young Teachers＇ Basic Teaching Skills Competition of Beijing Colleges and Universities,and after analyzing courses word-by-word transcripts and interview transcripts by NVIVO software, we exact the positive function of softwares which are used in classroom teaching presentation,and we classify all of the softwares used in the competition as chart soflwares,audio softwares and video softwares.After that,we analyze the effects of each software and give some examples.