| |
In Publication des actes du 19{è}me colloque de l'adm{é}e - Europe, Vol. 1, No. 1. (2007), pp. 1-7.
|
| |
|
| |
|
| |
|
| |
In Symposion zum Gedenken an Hermann Lange (October 2008)
|
| |
Annales de Didactique et de Sciences Cognitives, Vol. 11 (2006), pp. 5-39.
|
| |
The American Scholar (2008)
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
Possibles, Vol. 30, No. 1. (Hiver 2006), pp. 139-184.
|
| |
|
| |
|
| |
|
| |
Proc. nat. Acad. Sci., Vol. 93 (1996), pp. 1346-1351.
|
| |
Educational Psychologist, Vol. 42, No. 2. (2007), pp. 115-121.
|
| |
Educational Psychologist, Vol. 41, No. 2. (2006), pp. 75-86.
|
| |
Educational Studies in Mathematics, No. 22., pp. 1-36.
|
| |
Mathematical Thinking and Learning, Vol. 2, No. 3. (2000), pp. 157-189.
|
| |
Notices of the AMS (June 2000)
|
| |
American Psychologist, Vol. 54, No. 1. (January 2004), pp. 14-19.
|
| |
Computers in Human Behavior, Vol. 25, No. 2. (March 2009), pp. 258-266.
|
| |
American Educator, Vol. Winter (2007-2008)
|
| |
American Educator, Vol. Spring (2006)
|
| |
|
| |
|
| |
|
| |
In Interpretation und Bewertung p{ä}dagogisch-psychologischer Studien : Eine Einführung (2007)
|
| |
Educational Researcher, Vol. 27, No. 2. (1 March 1998), pp. 4-13.
|
| |
|