To differentiate is to make different, distinct, or specialized (Costello, 1994). Differentiation has become popular in education as an instructional philosophy aimed at equitably meeting the learning needs of all students in the classroom. Differentiated planning and delivery of classroom guidance is also necessary for appropriate school…

The controversy over the optimal age for learning a second language is discussed, examining, from the perspective of Piagetian theory: (1) the argument which suggests that children have an advantage in language learning; and (2) the arguments which states that adults have an advantage in language learning. The first part provides an overview of…

This paper reviews the research and theories on ethnic identity development, and draws some implications from these ideas for improving curriculum design for, and instructional effectiveness with, ethnically different students, especially Black Americans. The paradigm of "the developmental stages of ethnic identity transformation"…