Compared the thinking of kindergartners and sixth-graders as expressed in unassisted retellings of a narrative text. Found no significant age differences in retelling lengths and few significant age differences in the amount of types of thinking. Older children tended to summarize paragraphs and single sentences; young children tended to summarize paragraphs and multiple paragraphs. Illustrations and inferences of text events/actions were exhibited more by younger than older children. (Author/KB)