The growth of basic mathematical and scientific concepts in children,
Lovell, Kenneth.
The growth of basic mathematical and scientific concepts in children, by K. Lovell; foreword by Barbel Inhelder. - New York, Philosophical Library [1962, c1961] - 154 p. : ill. ; 23 cm.
Includes bibliographies.
NA
62052976
Number concept
Conservation (Psychology)
Number concept in children
136.7 / LOV
The growth of basic mathematical and scientific concepts in children, by K. Lovell; foreword by Barbel Inhelder. - New York, Philosophical Library [1962, c1961] - 154 p. : ill. ; 23 cm.
Includes bibliographies.
NA
62052976
Number concept
Conservation (Psychology)
Number concept in children
136.7 / LOV