Observations and Recommendations for Using Technology to Extend Interaction Allan Knight and Kevin Almeroth Rich Mayer Dorothy Chun Dept of Computer Science Dept of Psychology Germanic Studies Univ of California Univ of California Univ of California Santa Barbara, CA 93106 Santa Barbara, CA Santa Barbara, CA {aknight, almeroth}@cs.ucsb.edu mayer@psych.ucsb.edu chun@gss.ucsb.edu Technology-facilitated collaboration is extending the ways in which students and instructors interact within and beyond the classroom. Our paper describes how we effectively used Personal Response Systems (PRS), lecture slides, video archives, instant messaging, and course management software to extend interaction in a junior-level Computer Science course. Besides this description, we provide our observations and recommendations to help others who wish to use similar technologies to extend interaction within their classrooms.