This conference report bears witness to the centrality and growing significance of the debate on the impact of technology on mathematics education. It presents an overview of the conference's Technology Theme group's work, featuring summaries of the reports of 17 constituent working groups under 6 major headings: (1) "Challenges to the Curriculum"; (2) "Algorithms and Programming"; (3) "Television Video and Film"; (4) "Classroom Dynamics"; (5) "Teacher Education"; and (6) "Miscellaneous." The reports include international reviews, reports of the discussions, research findings, national views, personal views, and classroom explorations. The range and nature of the reports are varied and reflect the state-of-the-art in 1984. Thus, a spectrum of experiences ranges from the use of calculators through microcomputers to the use of powerful systems used to create cognitive models. However, a great difficulty in implementing curriculum change is noted; research and development projects must be linked to the varied social levers that might aid dissemination of tested practice. (MNS)