The variability of children of different ages and its relation to school classification and grouping,
Cornell, Ethel Letitia, 1892-
The variability of children of different ages and its relation to school classification and grouping, by Ethel L. Cornell ... - Albany, The University of the state of New York, 1937. - 98 p. diagrs., tables. 23 cm. - University of the state of New York bulletin, no. 1101 Educational research studies, 1937, no. 1 .
e 37000184
Individuality.
Ability grouping in education.
LB3061 / .C648
The variability of children of different ages and its relation to school classification and grouping, by Ethel L. Cornell ... - Albany, The University of the state of New York, 1937. - 98 p. diagrs., tables. 23 cm. - University of the state of New York bulletin, no. 1101 Educational research studies, 1937, no. 1 .
e 37000184
Individuality.
Ability grouping in education.
LB3061 / .C648