Most theories that have previously been applied to educational technology do not account for the distinctive nature and vast potential of technology. This book addresses this issue, exploring how education has been bound up with technology from the beginning, and recognising that educational aims have already been shaped by technologies.

Rupert Wegerif is Professor of Education and Academic Director of the Digital Education Futures Initiative (DEFI) at the University of Cambridge.

Louis Major is a Senior Lecturer in Digital Education at the University of Manchester.

1. Introduction; 2. An alternative history of educational technology; 3. Affordance theory; 4. The 'grammar' of educational technology; 5. Steps towards a dialogic 'grammar'; 6. Heidegger's hammer; 7. The 'meaning' of technology; 8. Technology and expanding dialogic space; 9. Technology and expanding dialogic time; 10. Researching educational technology; 11. A dialogic foundation for the design and practice of educational technology