Dave holds a B.A. degree from Haverford College and M.S. and Ph.D. degrees from Rensselaer Polytechnic Institute. He teaches a wide range of computer science courses and has particular teaching and research interests related to Human Computer Interaction and pen-based computing.  Dave also teaches interdisciplinary courses related to design.  He holds three United States Patents and is the originator of a pen-based instructional technology software system that is the basis of the commercial system now known as DyKnow.