درخت حوزه‌های تخصصی

Language learners receive different types of corrective feedback during the process of second language acquisition. Recast, as an approach to corrective feedback, is one of the most-frequently error correction techniques in classroom contexts. A plethora of research has addressed recast; however, the present study focused on comparing learners’ grammar achievement via oral and writing modalities through two perspectives, cognitive and ecological, who received recast. One hundred and twenty language learners, all first-year college students at Islamic Azad University and Applied Science University in Tehran participated in this study. They were assigned to four groups. The participants in all groups were exposed to different instructional programs based on the cognitive and ecological perspectives to language learning orally or in writing, and all learners received recast orally. Results obtained by a pretest and a posttest indicated that all groups made progress in their grammar achievement, while there was a statistically significant difference between the groups in the posttest. The participants in the ecological group had higher gains of grammatical structures than those in the cognitive group. However, data analysis revealed that there was no statistically significant difference between two oral and writing groups in their grammar achievement.

The well-established affiliation of metadiscourse research tradition to the philosophy of ESP raises some inevitable expectations on how much and how well the concept has been geared to meet the practical necessities of academic writing pedagogy. In light of such an expectation, a corpus of 35 academic writing coursebooks published during the last three decades was evaluated in terms of the possible realizations of key resources of interaction in pedagogical tasks. Due to its theoretical rigor and analytically operationalized nature, Hyland’s model of metadiscourse (2005a) was taken as the guiding framework for the current evaluation. The quantitative findings emerging from the analysis of the corpus did not sound sufficiently promising, suggesting that those theoretical developments have not yet been ideally translated into pedagogical designs; however, the rich range of resources identified in the tasks (i.e., the 55 categories emerging from the evaluation of the corpus) suggest that the rigorous tradition of research in metadiscourse has contributed to the effective operationalization of the concept for pedagogical objectives. It has been argued that through the effective introduction of the concept of metadiscourse into pedagogical designs and its appropriate operationalization, novice participants of academic/scientific discourse communities would be enabled to redefine the nature of academic communication and get rid of a large number of misconceptions which have become fossilized through long years of the dominance of positivistic thinking.