Glasersfeld E. von (1981) The conception and perception of number. In: Wagner S. & Geeslin W. E. (eds.) Modeling mathematical cognitive development. Clearinghouse for Science, Mathematics and Environmental Education, Columbus OH: 15–46. https://cepa.info/1353
Glasersfeld E. von
(
1981 )
The conception and perception of number .
In: Wagner S. & Geeslin W. E. (eds.) Modeling mathematical cognitive development . Clearinghouse for Science, Mathematics and Environmental Education, Columbus OH: 15–46.
Fulltext at https://cepa.info/1353
Richards J., Steffe L. P. & Glasersfeld E. von (1981) Reflections on interdisciplinary research teams. In: Wagner S. & Geeslin W. E. (eds.) Modeling mathematical cognitive development. Clearinghouse for Science, Mathematics and Environmental Education, Columbus OH: 135–143. https://cepa.info/1354
Richards J. , Steffe L. P. & Glasersfeld E. von
(
1981 )
Reflections on interdisciplinary research teams .
In: Wagner S. & Geeslin W. E. (eds.) Modeling mathematical cognitive development . Clearinghouse for Science, Mathematics and Environmental Education, Columbus OH: 135–143.
Fulltext at https://cepa.info/1354