The role of visual representations in the learning of mathematics A. Arcavi OriginalPaper Pages: 215 - 241
Learning to pose mathematical problems: Exploring changes in preservice teachers' practices S. Crespo OriginalPaper Pages: 243 - 270
Semiotic and discursive variables in cas-based didactical engineering C. Winsløw OriginalPaper Pages: 271 - 288
Some implications of the results of a case study for the design of pre-constructed, dynamic geometry sketches and accompanying materials M.P. Sinclair OriginalPaper Pages: 289 - 317
Key Ideas: What are they and how can they help us understand how people view proof? M. Raman OriginalPaper Pages: 319 - 325
A Comment on: Rowlands & Carson ``Where would formal, academic mathematics stand in a curriculum informed by ethnomathematics? A critical review'' S. AdamW. AlanguiB. Barton OriginalPaper Pages: 327 - 335