Series Foreword -- Introduction: Essays on Technology, Interaction, and Cognition -- I Design of Computer Support for Collaboration -- 1 Share Globally, Adapt Locally -- 2 Evolving a Learning Environment -- 3 Armchair Missions to Mars -- 4 Supporting Situated Interpretation -- 5 Collaboration Technology for Communities -- 6 Perspectives on Collaborative Learning -- 7 Groupware Goes to School -- 8 Knowledge Negotiation Online -- II Analysis of Collaborative Knowledge Building -- 9 A Model of Collaborative Knowledge Building -- 10 Rediscovering the Collaboration -- 11 Contributions to a Theory of Collaboration -- 12 In a Moment of Collaboration -- 13 Collaborating with Relational References -- III Theory of Group Cognition -- 14 Communicating with Technology -- 15 Building Collaborative Knowing -- 16 Group Meaning / Individual Interpretation -- 17 Shared Meaning, Common Ground, Group Cognition -- 18 Making Group Cognition Visible -- 19 Can Collaborative Groups Think? -- 20 Opening New Worlds for Collaboration -- 21 Thinking at the Small-Group Unit of Analysis -- Notes -- References -- Name Index -- Subject Index.