A curriculum theory begins in the transference of meaning from the familiar and the comprehensible to the abstract and perplexing problems arising from the actual teaching situation. These metaphors that evolve into theories serve to direct research by creating a symbolic language. (JN)

Discusses several philosophies of linguistics and semiotics that debate the importance of words and their relationship to signs, language as the primary modeling system, and the historical primacy of verbal versus visual communication. Describes human communication as both language-based and nonverbal, both aspects inviting arbitrary and abstract…