L'enseignement du calcul aujourd'hui : problèmes, défis et perspectives, Repères IREM, vol.54, pp.23-39, 2004. ,
La numération : les difficultés suscitées par son apprentissage, pp.5-31, 1984. ,
Young mathematicians at work: Constructing number sense, addition, and subtraction, 2001. ,
Children's conceptual structures for multidigit numbers and methods of multidigit addition and subtraction, Journal for Research in Mathematics Education, vol.28, pp.130-162, 1997. ,
Why and how to introduce numbers units in 1 st and 2 nd grades, Proceedings of the 8th Conference of Europ, 2013. ,
Teaching numeration units: why, how and limits, Conference Proceedings of ICMI Study 23: Primary Mathematics Study on Whole Numbers. Macau, pp.99-106, 2015. ,
URL : https://hal.archives-ouvertes.fr/hal-01724586