This article presents a review of research that has investigated ways of measuring implicit and explicit knowledge of a second language (L2), focusing on grammar. It begins by defining implicit and explicit knowledge in terms of a distinguishing set of criteria. Two ways of investigating implicit knowledge are discussed -- through experimental…

Research on corrective feedback (CF), a central focus of second language acquisition (SLA), has increasingly examined how teachers employ CF in second language classrooms. Lyster and Ranta's (1997) seminal study identified six types of CF that teachers use in response to students' errors (recast, explicit correction, elicitation, clarification…

This article summarizes the evidence as regards the effectiveness of therapy for grammar for school-aged children with language impairments. I first review studies focusing on specific areas of grammar (both expressive and receptive targets) and then studies aiming to improve language more generally, several of which focus more on the…

For most Anglophone countries, the history of grammar teaching over the past 50 years is one of contestation, debate and dissent: and 50 years on we are no closer to reaching a consensus about the role of grammar in the English/Language Arts curriculum. The debate has been described through the metaphor of battle and grammar wars (Kamler, 1995;…

This article reviews some essential theoretical and empirical research literature that discusses the role of memory in second language acquisition and instruction. Two models of literature review--thematic and study-by-study--were used to analyze and synthesize the existing research. First, issues of memory retention in second language acquisition…

Many K-12 teachers struggle to meet the needs of diverse learners as school reforms promote new disciplinary literacy requirements. In response, language education scholars have argued that teachers must develop "disciplinary linguistic knowledge" (DLK), or an understanding of language in their content area and an ability to design…

The current study provided cross-cultural and cross-disciplinary analyses of the distribution of directives in discussion and conclusion sections of English and Persian research articles (RAs) in disciplines of physics, chemistry, counseling, and sociology, representing hard and soft sciences, respectively. To that aim, 80 RAs from both English…

This review summarizes evidence for the effectiveness of technology use in foreign language (FL) learning and teaching, with a focus on empirical studies that compare the use of newer technologies with more traditional methods or materials. The review of over 350 studies (including classroom-based technologies, individual study tools,…

Studies of the impact of formal instruction consistently show that more instruction results in modest increases in consciously-learned competence, a conclusion that is consistent with the claims of the monitor hypothesis. Reviews research in which the impact of direct instruction in grammar is measured directly, discusses individual studies…

This paper looks at the employment of metalanguage by advanced English L2 users engaged in Dictogloss, a form-focused collaborative writing task, and compares it with that in an earlier study of intermediate learners. First, three commonly employed types of metalinguistic terms are recognised, listed and compared with those reported in a study of…

This paper reviews studies of teacher cognition in relation to the teaching of grammar in first, second, and foreign language classrooms. Teacher cognition encompasses a range of psychological constructs and these are reflected in the research reviewed here. Thus, in turn, I discuss studies of teachers' declarative knowledge about grammar, of…

The textbook is the center of the curriculum and syllabus in most classrooms; however, rarely does it provide enough information for learners to successfully acquire pragmatic competence. This paper reports on a qualitative and quantitative study of 8 English as a Second Language (ESL) and English as a Foreign Language (EFL) textbooks to determine…

This article reviews previous studies of the effects of implicit and explicit corrective feedback on SLA, pointing out a number of methodological problems. It then reports on a new study of the effects of these two types of corrective feedback on the acquisition of past tense -ed. In an experimental design (two experimental groups and a control…