[eng] This paper examines the effects and implications of both implicit and explicit
grammar instruction in the English as a foreign language (EFL) classroom. The
aims are to determine if one way of instruction is better than another to teach
grammar, to measure if the learners have been able to retain the knowledge
acquired through both ways of instruction and if they are able to use the target
structure in a production test. Students’ perceptions were assessed by means of
a questionnaire and an open-ended interview. A final grammar test and a
productive test were carried out and the results indicate that explicitly taught
students performed significantly better than implictly taught students due to the
relevance of metalinguistic awareness when learning a language.