Underlying the mainstream of current SLA research is the Ansatz that some level of attention to the formal aspects of language is necessary for acquisition to take place. It is self-evident and commonsensical that focusing on specific linguistic aspects helps the learner to acquire and internalise them. Numerous recent studies investigated the…

Theories and research on second language acquisition and grammatical theory are reviewed and discussed, especially those concerning the recent interest in understanding the nature of the language-learning faculty. The review includes work in the areas of universal grammar, interlanguage, parameterization of universal grammar, second language…

A discussion of the nature and function of interlanguage in second language acquisition draws on research on interlanguage and experiences in teaching German to Finnish secondary students. The theories giving rise to the concept of interlanguage are outlined and compared, and the characteristics of interlanguage are discussed. Special attention is…

Lexical semantics and contrastive lexical semantics can serve as a background discipline to describe and, to some extent, to explain errors in interlanguage. Two developments in lexical semantics that are relevant in this area are the description of sense-relationships and componential analysis. Contrastive lexical semantics involves mapping the…