Young Peoples' Ideas of Infinity

On the dual nature of mathematical conceptions: Reflections on processes and objects as different sides of the same coin

Anna Sfard · Educational Studies in Mathematics · 1991 · 1.8K citations

Humanities, Mathematics, Philosophy +12

The Child's Conception of Number

E. A. Peel, J. Piaget · British Journal of Educational Studies · 1953 · 1.8K citations

Education, Human Development, Child Development +7

The Child's Conception of Space

Lorraine Jensen, Jean Piaget, Bärbel Inhelder et al. · Art Education · 1958 · 821 citations

Education, Human Development, Child Development +7

Duality, Ambiguity, and Flexibility: A “Proceptual” View of Simple Arithmetic

Eddie Gray, David Tall · Journal for Research in Mathematics Education · 1994 · 689 citations

Social Sciences, Mathematics, Psychology +9

Duality, Ambiguity, and Flexibility: A "Proceptual" View of Simple Arithmetic

Eddie Gray, David Tall · Journal for Research in Mathematics Education · 1994 · 303 citations

Education, Mathematics, Psychology +8