This article addresses age-related attainment effects in second language acquisition, posing the question of whether such effects are to be explained in terms of a Critical Period with a predictable and abrupt offset point or in terms of the impact of a wider range of factors. It attempts to explore this question by focusing on four discussion points in the current debate: (i) the wide use of native-speaker behaviour as the key L2 attainment yardstick; (ii) the degree of compatibility of prevailing views regarding the notion of a critical period for L2 acquisition; (iii) the relative narrowness of much research in this area, where age of L2 onset is often regarded as the crucial if not the only critical variable; and (iv) insights relative to maturational constraints on language acquisition offered by recent brain research. The article concludes that a loosening of the association between ultimate L2 attainment research and Critical Period Hypothesis (CPH) issues would shed more light on L2 attainment in terms both of the comprehensiveness and of the acuity of the insights which would result.

There has always been a common-sense view that the number of languages that children learn, whether through natural exposure or educational intervention, has consequences for their development. The assumption was that these consequences were potentially damaging. Even now, after approximately 50 years of research on the topic, parents remain concerned about their children's development when it includes a bilingual experience. It is now clear that although parents were correct that speaking more than one language has consequences, the assumption about the nature of these consequences is not: the outcome of the experience is in fact the opposite of what many early researchers claimed and what many contemporary parents intuitively believe. In contrast to early warnings about negative consequences, bilingualism turns out to be an experience that benefits many aspects of children's development. Although there are documented delays in acquiring some formal aspects of each language, such as vocabulary (Bialystok 2010), bilingualism has either no effect (intelligence) or positive effects (metalinguistic awareness, cognitive development) on development.

In my talk, I foreground what I and my colleagues have learned about discourse in the numerous classrooms we observed in a four-year research study at an urban high school. While Jefferson High had a student body that was linguistically and culturally diverse, it was homogeneous socioeconomically, being labeled ‘low income’. Some of the research I address reveals how the classroom discourse both co-constructed and was influenced by these phenomena. Additionally, my survey of the research reveals that theoretical frameworks shape the research process and, ultimately, what we learn about classroom discourse.

For many decades, foreign language teaching has been dominated by the principle that teachers should use only the target language (TL) and avoid using the mother tongue (L1) except as a last resort. However, reports show that teachers make extensive use of the L1. This paper illustrates this discrepancy and considers some main reasons for it. It suggests a framework of principles for balancing L1 and TL use in the classroom. Finally, it reviews some strategies available to teachers who wish to make maximal use of the TL without denying the potential of the L1 to support foreign language learning.

Esta reseña presenta una visión general de los estudios sobre español como segunda lengua en contextos educativos. La temática y el ámbito geográfico es amplio a fin de captar la diversidad de alumnos y contextos de aprendizaje de español L2 a sólo dos décadas de que la enseñanza de este idioma adquiriera ímpetu a nivel global. Los alumnos tradicionales de segunda lengua o lengua extranjera, hablantes de herencia, inmigrantes y niños indígenas presentan una variedad de contextos de investigación que contribuye y expande las disciplinas de enseñanza y aprendizaje de segunda lengua/lengua extranjera, lingüística aplicada y sociolingüística. Siguiendo tendencias iniciadas en años anteriores en adquisición de segunda lengua, y en relación con investigaciones sobre otros idiomas, los temas principales en este periodo reciente han sido la adquisición y enseñanza del sistema lingüístico, procesos de aprendizaje y su contexto social. La reseña se organiza temáticamente según estas categorías principales.

This review presents a broad picture of recent work on L2 Spanish1 in educational contexts. The thematic and geographic scope of the review is wide, in order to capture the diversity of learners and learning contexts of L2 Spanish, just two decades after teaching and learning the language gained impetus worldwide. Traditional second or foreign language learners, heritage learners, immigrants and indigenous children provide a variety of contexts for research that builds on and expands the fields of second and foreign language learning and teaching, applied linguistics and sociolinguistics. Continuing the trend from previous years in SLA, and in connection with research on learners of other languages, main themes in this time period have been the acquisition and teaching of the language system, learning processes, and social contexts of learning. The review is organized thematically according to these main categories.

Presented at the Second Language Research Forum, Michigan State University, USA; 31 October 2009

Focus on form, i.e. brief attention to language items within a larger meaning-focused context (Long 1991; Ellis 2001), occurs in a variety of L2 instructional contexts. Meta-analyses of the effectiveness of focus on form have found overall positive effects; however, these meta-analyses have commented on the small number of studies available for synthetic analyses, particularly when considering the effects of specific characteristics of focus on form (e.g. Norris & Ortega 2001; Russell & Spada 2006; Mackey & Goo 2007). Consequently, this colloquium continued the investigation of specific focus on form variables to further our understanding of why ‘sometimes focus on form works, and sometimes it does not’ (Williams 2005: 685).

Presented at the Second Language Research Forum, Michigan State University, USA; 30 October 2009

Recent years have brought increasing attention to studies of language acquisition in a country where the language is spoken, as opposed to formal language study in classrooms. Research on language learners in immersion contexts is important, as the question of whether study abroad is valuable is still somewhat controversial among researchers (DeKeyser 2007; Sunderman & Kroll 2009). In the introduction to a pioneering volume on language study abroad, Freed (1995, pp. 17–18) noted that a vital question concerns the relative linguistic benefits of a summer, a semester or a year in the foreign environment. Our purpose in this colloquium, which was organized by Lynne Hansen, was to introduce a new line of research which allows comparisons of L2 attainment over these exposure times as well as longer periods. Tens of thousands of young missionaries for the Church of Jesus Christ of Latter-day Saints (also known as the LDS or Mormon Church), advanced speakers of some fifty languages, return home annually after two years of language learning abroad. This natural sample of learners, in its relative uniformity of learner characteristics and learning contexts, allows for the control of variables in SLA research which can be problematic in studies of more heterogeneous groups.

With the growing international market for pre-experience MA in ELT/TESOL programmes, a key curriculum design issue is how to help students develop as learners of teaching through and beyond their formal academic studies. We report here on our attempts at the University of Warwick to address this issue, and consider wider implications for research and practice in initial language teacher education. At the Centre for Applied Linguistics at the University of Warwick, we run a suite of MA programmes for English language teaching professionals from around the world. Most of these courses are for students with prior teaching experience, but our MA in English Language Studies and Methods (ELSM) programme is designed for students with less than two years’ experience and, in fact, the majority enrol straight after completing their undergraduate studies in their home countries.