Conventional paragraph structure requires that the topic sentence be presented first, followed by connected, coherent sentences. The processing role of these rules was investigated by comparing performance on reading simple passages that conformed to or violated conventional paragraph organization. (Author/SW)

Descriptive grammars based on sets of rewrite rules were constructed to summarize the structure and organization of 120 entries in a second grade student's journal of class news. These rules illuminated the relationship between experience, abstraction, and generation of structure, and the use of structure to express complex thoughts. (PMJ)