The experimental program in remedial composition described in this interim report was designed on the assumption that students could best learn to write minimally acceptable compositions by imitating paragraph and essay models which have been divided into a series of incremental steps. The objectives of the program were to develop a heuristic method for discovering and sorting material; to control specific paragraph and essay models; and to control the high frequency features of an acceptable written dialect. These objectives were fulfilled in incremental stages with exercises based on tagmemic substitution and embedding at several levels of structure and with pre-writing exercises involving oral discussion, debates, and speeches. Preliminary results indicate that the program produces writing competency and can be modified to deal with different kinds of writing. (Author/JM)