KaplanS. (1986). The grid: A model to construct differentiated curriculum for the gifted. In RenzulliJ. (Ed.), Systems and Models for Developing Programs for the Gifted and Talented (Chapter IV, pp. 180–193). Mansfield Center, CT: Creative Learning Press.
2.
MakerC. (1982). Curriculum development for the gifted. Rockville, MD: Aspen Publishers.
