An ambiguity in Gagne and Briggs' model of instructional design was investigated using treatments which contrasted verbal expository and guided discovery forms of presentation. Analysis found the guided discovery method as effective as the expository method on all measures. Implications are discussed. (Author/MT)

This paper deals with the primary processes of cognition in fifth- and sixth-grade children; i.e., how children this age interpret what they see and hear, how they remember it, and how they reason and solve problems. Designed to provide background information for the staff of the Skills Essential to Learning Television Project (a multi-level…