págs. 317-324
págs. 325-348
The emergence of algebraic structure: students come to understand units and zero-divisors
págs. 349-359
págs. 360-377
Early error detection: an action-research experience teaching vector calculus
María Magdalena Añino, Gabriela Merino, Alberto Miyara, Marisol Perassi, Emiliano Ravera, Gustavo Pita, Diana Waigandt
págs. 378-395
Designing Geometry 2.0 learning environments: a preliminary study with primary school students
págs. 396-416
Manipulatives and problem situations as escalators for students� geometric understanding: a semiotic analysis
págs. 417-427
págs. 428-437
págs. 438-445
págs. 445-452
págs. 452-464
págs. 464-473
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