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.
Parents' Evaluation of Developmental Status PEDS Parentsâ Evaluation of Developmental Status (PEDS) is an evidence-based method for detecting and addressing developmental and behavioural problems in children aged from birth to seven years and 11 months. PEDS is a simple, 10-item questionnaire that is completed by the parent.