Abstract: | This paper describes the implications of principles derived from cognitive social learning theory and Vygotsky's socially oriented developmental perspective for the design of technology-based instructional materials. Vygotsky's ideas about the kinds of experience that facilitate intellectual growth in the “zone of proximal development” suggest that contemporary mathematics instruction (usually characterized by presentations to large groups, or by individualized instruction dominated by worksheets) deny students opportunities for individual interaction with and supportive guidance by adult experts or competent peers. It is proposed that such instruction fails to support the transfer of regulatory responsibility from teacher to student. The derivation of design specifications for the use of instructional technologies to overcome these limitations of contemporary instruction in mathematics is described. Instructional materials designed to promote self-regulation strategies as well as procedural and declarative knowledge in mathematics are presented. |