Kieran Egan, in Teachers College Rec-
ord (Winter 1982), Columbia Univ., 525
Children Learn West 120th St., New York, N.Y. 10027.
American educators have been strongly influenced the child devel- opment theories of Swiss psychologist Jean Piaget (1896-1980). Yet Egan, professor of education at Canada's Simon Fraser University, con- tends that Piaget's evidence is seriously flawed.
Piaget held that children pass through four fixed stages of "logico- mathematical" development. Using...