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随着政府资金的不断投入,现在很多学校都配备了多媒体系统,老师的信息技术应用能力也得到了很大的提高,基本达到人人会用多媒体的目标.可是在授课时仍会出现一些颇为尴尬的现象,比如在讲授过程中,教师要时不时地从学生中间回到讲台,通过敲击键盘或单击鼠标控制演示文稿的播放;有时要展示学生的实验结果,教师又要在实物投影仪和电脑间不停地切换;有时要展示学生的实验过程,教师又要在PPT和照相机间切换等.现在,随着无线网络的普及,
With the continuous investment of government funds, many schools are now equipped with multimedia systems, and teachers’ ability to use information technology has also been greatly improved, basically meeting the goal of using multimedia for all. However, For the awkward phenomenon, for example, in the teaching process, teachers from time to time from the middle of the students back to the podium, by typing the keyboard or click the mouse to control the playback of the presentation; sometimes to show students the experimental results, teachers also in kind projection Constantly switch between the instrument and the computer; sometimes to demonstrate the students experimental process, teachers have to switch between the PPT and the camera, etc. Now, with the popularity of wireless networks,