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 - 5th ed. 2nd impression - London : University of London, 1966 - 158 p. : illus. ; 22 cm.
0340087994
72-369405
Number concept in children
Conservation (Psychology)
The growth of basic mathematical and scientific concepts in children / by K. Lovell ; foreword by Barbel Inhelder - 5th ed. 2nd impression - London : University of London, 1966 - 158 p. : illus. ; 22 cm.
0340087994
72-369405
Number concept in children
Conservation (Psychology)
