blastoderm: the germinal membrane from which the organs of the embryo are formed. Explanation of Terms Used in Entomology John. B. Smith He it was who introduced the terms Keimhaut (blastoderm) and Keimblatt (germ-layer).
Child Study. Child study, also called paidology or experimental pedagogy, was the attempt to apply the methods of modern science to the investigation of children in order to discover the laws of normal child development.
From Wikipedia, the free encyclopedia. Youth studies is an interdisciplinary academic field devoted to the study of the development, history, culture, psychology, and politics of youth. The field studies not only specific cultures of young people, but also their relationships, roles and responsibilities throughout the larger societies which they occupy.