Six papers on interlanguage are presented. The first, "Language Transfer," experimentally tests Robert Lado's contrastive analysis principles on the transfer of language skills to second language acquisition. The second paper, called "Interlanguage," builds on this work in discussing the structured nature of interlanguage and…

The text and accompanying workbook are designed to help second language teachers explore theories of language teaching and learning, deriving a set of hypothesized principles for classroom teaching based on the concept of proficiency and suggesting classroom techniques using them. The first two chapters outline and expand on both theoretical and…

Papers on language processing, culture, and language learning and teaching include: "A Theory of Intelligence as Semiosis: With a Couple of Comments on Interlanguage Development" (John W. Oller, Jr.); "Along the Way: Interlanguage Systems in Second Language Acquisition" (Larry Selinker); "Strategy and Tactics in Second Language Acquisition"…