Three experiments investigated developmental changes in children's ability to monitor and evaluate memorization and comprehension. First and 3rd graders rated the perceived difficulty of memorization (verbatim recall) and comprehension (block-building construction) after engaging in (a) a memory strategy (rote repetition) or a comprehension strategy (pictorial clarification of unfamiliar words; Experiment 1); (b) no strategy or repetition (Experiment 2); and (c) no strategy or clarification (Experiment 3). In Experiment 1, children recognized that clarification aided construction more than recall, but not that repetition aided recall more than construction. In Experiment 2, children recognized that repetition aided recall but not construction. In Experiment 3, children recognized that clarification aided construction more than recall. Thus, by 1st grade, children are sensitive to some aspects of the comprehension-memory distinction.Children must come to recognize and distinguish among cognitive activities such as perceiving, attending, remembering, forgetting, comprehending, reasoning, and guessing. Recent research suggests that the ability to distinguish among cognitive processes does not appear until middle to late childhood (Fabricius, Schwanenflugel, Kyllonen, Barclay, & Denton, 1989;Lovett & Flavell, 1990;Schwanenflugel, Fabricius, & Alexander, 1994). In particular, children may not come to distinguish between comprehension and memory, two cognitive processes that are important components of many academic activities, until 8 to 10 years of age (Lovett & Pillow, 1995). Wellman and Estes (1986) argued that acquiring knowledge about the variety of mental activities in which the mind engages is one important later step in children's developing "theory of mind." The present study further investigated children's sensitivity to the differences between comprehension and memory by assessing