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.
The better you under-stand a child and take actions basedon those understandings, the stronger your relationship withthat child. Studying children, which is the heart of assess-ment, helps teachers discern why children do what they do,what makes them smile and laugh, and what tasks are difficultfor them.