Duffy & Cunningham (1996) - Constructivism: Implications for the Design and Delivery of Instruction

Duffy, T. M. & Cunningham, D. J. (1996). Constructivism: Implications for the design and delivery of instruction. In D. H. Jonassen (Ed), Handbook of research for educational communications and technology (pp. 170–98). New York: Macmillan.