Developing the concept of linear function: one student’s experiences with dynamic physical models

National Council of Teachers of Mathematics

Mathematics Teacher Learning and Teaching PK-12 · 1979 · 8.5K citations

Education, Mathematics, Mathematics Education +4

Handbook of research on mathematics teaching and learning

Choice Reviews Online · 1992 · 6.1K citations

Education, Mathematics, Mathematics Education +10

The merging of the senses

Choice Reviews Online · 1994 · 1.9K citations

Life Sciences, Neuroscience, Physiology +17

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

Problems of Reliability and Validity in Ethnographic Research

Margaret D. LeCompte, Judith Goetz · Review of Educational Research · 1982 · 1.7K citations

Social Sciences, Anthropology, Cultural Anthropology +10