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.
Because young children are concrete thinkers, age-appropriate social studies experiences start with children's own lives and help them relate new learning to what is familiar. After their family, the classroom is the first society that young children belong to.DIs in Social Studies. 1  Diversity: Children understand that people have diverse characteristics, interests, and abilities. 2  Community roles: Children recognize that people have different roles and functions in the community. 3  Decision making: Children participate in making classroom decisions.