TCDIDC is a heuristic model for students to use when revising compositions. The model's acronym is derived from the main terms of the revising heuristic: time (the pattern of tenses and other time markers), commitment (the pattern of such predicate modes as indicative, conditional, questioning, exhortative, emphatic), directness (the pattern of active voice, passive voice, and being-verbs), identification (the pattern of noun types--concrete vs. abstract, ordinary vs. technical), description (the pattern of adjective types--concrete vs. abstract, objective vs. impressionistic), and connection (the pattern of transitions and subordination). Two student writing samples demonstrate that systematic analyses in the TCDIDC manner can make sentences, paragraphs, and papers more effective, meaningful, and enjoyable. (RL)