BallD. L., & CohenD. K. (1999). Developing practice, developing practitioners: Toward a practice–based theory of professional education. In SykesG. & Darling–HammondL. (Eds.), Teaching as the learning profession: Handbook of policy and practice (pp. 3–32). San Francisco: Jossey–Bass.
2.
EngelmannS., & CarnineD. (1982). Theory of instruction: Principles and applications. New York: Irvington Publishers.