The notion of infinite measuring number and its relevance in the intuition of infinity David Tall OriginalPaper Pages: 271 - 284
Les premieres acquistions de la notion de nombre par l'enfant Claude Comiti OriginalPaper Pages: 301 - 318
The development of proportional reasoning and the ratio concept Part II—problem-structure at successive stages; problem-solving strategies and the mechanism of adaptive restructuring Gerald Noelting OriginalPaper Pages: 331 - 363
