for the learning of mathematics |
| Gérard Vergnaud - Vol. 3 Num. 2 (1983) | ||
| Cognitive and developmental psychology and research in mathematics education: some theoretical and methodological issues | 31-41 | |
| Gérard Vergnaud - Vol. 4 Num. 2 (1984) | ||
| Research problems in mathematics education - II | 39-44 | |
|
|
|