1. Keith Jones, Eirini Geraniou, & Thanassis Tiropanis: Patterns of collaboration: Towards learning mathematics in the era of the semantic web.- 2. Gorjan Alagic & Mara Alagic: Collaborative mathematics learning in online environments.- 3. Murat Perit Cakir & Gerry Stahl: The integration of mathematics discourse, Graphical reasoning and symbolic expression by a Virtual Math Team.- 4. Beste Güçler, Stephen Hegedus, Ryan Robidoux, & Nicholas Jackiw: Investigating the Mathematical Discourse of Young Learners Involved in Multi-Modal Mathematical Investigations: The Case of Haptic Technologies.- 5. Dragan Trninic & Dor Abrahamson: Embodied interaction as designed mediations of conceptual performance.- 6. Luis Radford: Sensuous Cognition.- 7. George Gadanidis & Immaculate Namukasa: New media and online mathematics learning for teachers.- 8. Ann LeSage: Web-based video clips: A supplemental resource for supporting pre-service elementary mathematics teachers.- 9. Dragana Martinovic, Viktor Freiman, & Zekeriya Karadag: Visual mathematics and cyberlearning in view of Affordance and Activity Theories.