Establishing a custom of proving in american school geometry: evolution of the two-column proof in the early twentieth century Patricio G. Herbst OriginalPaper 01 March 2002 Pages: 283 - 312
The balance model: Hindrance or support for the solving of linear equations with one unknown Joƫlle Vlassis OriginalPaper 01 March 2002 Pages: 341 - 359
A Matter of Time: Emotional Responses to Timed Mathematics Tests Sharon B. WalenSteven R. Williams OriginalPaper 01 March 2002 Pages: 361 - 378
Generalization of patterns: the tension between algebraic thinking and algebraic notation Rina ZazkisPeter Liljedahl OriginalPaper 01 March 2002 Pages: 379 - 402