Relations between Types of Reasoning and Computational Representations Orit ParnafesAndrea Disessa OriginalPaper Pages: 251 - 280
Managing the Complexity of Human/Machine Interactions in Computerized Learning Environments: Guiding Students’ Command Process through Instrumental Orchestrations Luc Trouche OriginalPaper Pages: 281 - 307
On the Integration of Digital Technologies into Mathematics Classrooms Celia HoylesRichard NossPhillip Kent OriginalPaper Pages: 309 - 326
Teachers’ Activities in Technology-Based Mathematics Lessons John Monaghan OriginalPaper Pages: 327 - 357