In this article, the author talks about Classroom Presenter, a computer program that aids in student participation during class discussions and makes boring lectures more interactive. The program was created by Richard J. Anderson, a professor of computer science at the University of Washington, in Seattle. Classroom Presenter is now in use in institutions from San Diego to Grove City College in Pennsylvania and Virginia Tech in Blacksburg. The software has also spawned a spinoff designed to work on any computer, not just on pen-based devices. And a Presenter-like commercial program called DyKnow--which has the ability to import movies and audio--has broken out of computer science courses to be used in art history classes and in English composition. But even as enthusiasts have taken up these programs, some doubts have emerged. One problem is that they largely rely on tablet PCs, notebook-size, touch-screen computers that have yet to gain a substantial following among students. And studies have not clearly shown that the software leads to better classroom performance by students. Students do seem more actively involved, but the jury is still out on whether that involvement translates to educational achievement.