1. Achtenhagen, F. (2004). Curriculum development as modeling of complex reality. In N. M. Seel & Dijkstra, S. (Eds.). Curriculum, plans and Processes in Instructional Design. (pp. 193- 210). Mahwah, NJ: Lawrence Erlbaum Associates, Publishers.
2. Brown, J. S., Collins, S., & Duguid, D. (1989). Situated cognition and the culture of learning. Educational Researcher, 18, 32-42.
3. Bruner, J. S., Goodnow, J. J., & Austin, G. P. (1956). A study of thinking. New York: Wiley.
4. Collins, A. M., & Quillian, M. R. (1969). Retrieval time from semantic memory. Journal of ver- bal learning and verbal behavior, 8, 240-247.
5. Collins, A., & Stevens, A. L. (1983). A cognitive theory of inquiry teaching. In C. M. Reigeluth (Ed.), Instructional-design theories and models: an overview of their current status. (pp. 247- 278). Hillsdale, NJ: Lawrence Erlbaum Associates, Publishers.