What Piaget's conservation of number task doesn't tell us about a childs understanding of numerical invariance
Pennington, Bruce Frankiln, 1946-
What Piaget's conservation of number task doesn't tell us about a childs understanding of numerical invariance [ microform] / by Bruce Franklin Pennington - Ann Arbor, Mich. : University Microfilms International, 1977 - 1 mirofilm reel : positive ; 35 mm.
Thesis (Ph.D.) - Duke University, 1977
Number concept
Mathematical ability
What Piaget's conservation of number task doesn't tell us about a childs understanding of numerical invariance [ microform] / by Bruce Franklin Pennington - Ann Arbor, Mich. : University Microfilms International, 1977 - 1 mirofilm reel : positive ; 35 mm.
Thesis (Ph.D.) - Duke University, 1977
Number concept
Mathematical ability