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.
National Reading Panel (2000 April). Teaching children to read. An evidence based assessment of the scientific research literature on reading and its implications for reading instruction. Washington, D.C.: National Institutes of Health, National Institute of Child Health and Human Development.