We propose a two-component theory of text signaling devices. The first component is a text-based analysis that characterizes any signaling device along four dimensions: (a) the type of information it makes available, (b) its scope, (c) how it is realized in the text, and (d) its location with respect to the content it cues. The second component is…

Discusses five instructional strategies for increasing the meaningfulness of technical or scientific information. These include organization of prose, use of concrete analogies as advance organizers, use of inserted questions in prose, elaboration activities such as note-taking and discovery learning. (JN)