Abstract
In this research, a mouse device which can realize force feed-back has been developed. The mouse device is named Active Mouse, and has been applied to teaching software application. Active Mouse consists of developed omni traveling mechanism, force sensor and optical position sensor. Moreover, it can communicate with PC through USB. In the teaching software application, it was confirmed that Active Mouse can teach user how to insert an image into a document through mouse operation. In addition, Active Mouse can teach mouse operations of another application.