The interaction of teacher, learner, content, and instruction is the process of teaching and learning, a single activity. The theoretical and the practical elements of this process are examined in the context of a model that explains the key elements of the process: identification, prescription, application and evaluation. These elements are analyzed with special emphasis on the identification phase. In the course of this examination, self-exploration exercises are provided. A bibliography directs teachers to more comprehensive sources of information. (JD)