Cognitive Psychology · 1985 · 14 citations · 11 references
EducationEarly Childhood EducationChild DevelopmentSet TheoryCardinal NumbersCollection TheorySet Cardinality
11
The Child's Understanding of Number
U. A. Easley, Rochel Gelman, C. H. Galistell · Educational Researcher · 1979 · 1.7K citations
Number development in young children
Benson Schaeffer, Valeria H. Eggleston, Judy L. Scott · Cognitive Psychology · 1974 · 305 citations