Implicit instruction

Many studies have examined the effect of different approaches to teaching grammar including explicit and implicit instruction. However, research in this area is limited in a number of respects. One such limitation pertains to the issue of construct validity of the measures, i.e. the knowledge developed through implicit instruction has been measured through instruments which favor the recipients of explicit instruction. The present study expands on the previous studies by exploring the effectiveness of explicit and implicit instructions through administering a timed GJT and an untimed GJT. Data were collected from three different groups: (a) the explicit group was presented with rules of verb complementation, (b) the implicit group received visually enhanced texts, and (c) the control group received no instruction of the target feature. The results of the mixed between-within subjects ANOVA test revealed that the learners in explicit group outperformed the learners in implicit and control groups in post-tests and delayed post-tests even in the case of the implicit measure. Furthermore, the results indicated the more durable effects of explicit instruction compared with implicit instruction. Taken together, the study provided evidence for the efficiency of explicit teaching compared to implicit teaching in the context of L2 development.

Meta-discourse markers are an inevitable part of oral proficiency which improve both the quality and comprehension of learners’ speech. While studies of oral meta-discourse have been conducted since the 1980s in a European or US context, they have remained relatively untouched in Iran. Therefore, this study aimed to seek the impact of both explicit and implicit teaching of formal meta-discourse markers on EFL learners’ oral proficiency. To this end, the quantitative data were collected from ninety upper-intermediate students at Shiraz University Language Center. Two groups went through an instruction for an eight-session treatment. However the experimental group ‘B’ (N=45) were instructed the formal meta-discourse markers implicitly, the target formal meta-discourse markers were taught to the experimental group ‘A’ (N=45) explicitly. To compare the participants’ performances, an SOPI (Simulated Oral Proficiency Interview) posttest was administered. The results revealed that the instruction of meta-discourse markers had a positive effect on the learners’ oral outcome. Moreover, the findings showed that learners who received explicit method of teaching formal meta-discourse markers could perform better in speaking than learners who received implicit instruction. The findings can have pedagogical implications for EFL educators and materials developers to enhance learners’ oral proficiency. The findings also provide important insight into the effect of teaching discourse markers and raising learners’ awareness through explicit instruction to make pupils produce more cohesive and coherent speech.

Research on the effect of implicit and explicit instruction on developing learners’ explicit knowledge by the use of measures of explicit knowledge abounds in the literature. However, measuring learners’ implicit knowledge employing fine-grained measures has rarely been the concern of researchers in the field. Therefore, the present study is an attempt to scrutinize the effectiveness of implicit and explicit instruction through administering a Word Monitoring Task (WMT), as a more valid psycholinguistic measure of implicit knowledge. The necessary data were collected from 47 pre-intermediate participants in three different groups, i.e., (1) the implicit group received textually enhanced texts of verb complementation, (2) the explicit group was presented with metalinguistic explanations and examples of the target feature, and (3) the control group was deprived of any instruction. The results of the mixed between-within subjects ANOVA revealed that although both implicit and explicit instructions facilitated the development of the implicit knowledge of the target feature, the learners in the explicit group outperformed their counterparts in the implicit and the control groups in both the immediate and delayed post-tests. Moreover, the results indicated more durable effects of implicit instruction compared with those of explicit instruction. Overall, the findings provided evidence for the superiority of explicit instruction and the long-term effect of implicit instruction in developing relevant knowledge of verb complementation. The findings of the study can benefit both teachers and learners in developing teaching/learning strategies to improve and facilitate the grasp of both explicit and implicit knowledge.

The present study aims at investigating the differential effects of two types of instruction (explicit versus implicit) on the learning of English articles by Iranian EFL learners. To achieve this aim, 90 intermediate undergraduate students at Islamic Azad University, Shahreza Branch, whose major was English Translation were selected for the experiment. Then, they were divided into three groups namely, explicit group (EG), implicit group (IG), and control group (CG). The EG received instruction on English articles through two popular grammar books-- namely ‘Essential Grammar in Use’ by Murphy (1998) and ‘Oxford Practice Grammar’ by Eastwood (1999). The second group received instruction on English articles by employing the technique of textual input enhancement. The third group received similar instruction like IG except that English articles were not enhanced for this group. After analyzing the data on pre- and posttests, the results showed that the three groups of EG, IG, and CG improved significantly from pretest to posttests. Moreover, on the posttest, the EG learners significantly outweighed the IG learners, who were in turn found to be significantly better than their counterparts in the CG. The results of this study have several important implications for the classroom practice concerning the controversial issue of teaching English articles.

This study compared the efficacy of explicit and implicit instruction of requestive strategies on upper-intermediate female English as a foreign language (EFL) learners’ email writing development. Sixty-two participants in four intact classes were randomly assigned to two explicit and implicit groups. In this quasi-experimental pretest-posttest design study two email evaluation tests and two written discourse completion tests (WDCT) were used to collect the data. In the pretest phase, an email evaluation test and a WDCT were administered to the participants in two sessions. Next, the two groups were provided with ten treatment sessions. The explicit group received direct instruction and metapragmatic explanation on the use of appropriate requestive strategies in writing emails. The implicit group, however, received instruction on writing requestive emails without any explicit explanation about the requestive strategies in emailing. Then, the participants took the posttest of email evaluation test and WDCT in two successive sessions. The results indicated that both modes of instruction exerted significant effects on the learners’ production of requestive strategies in English. The comparison of the two modes of instruction, nonetheless, indicated that the participants who underwent explicit instruction significantly surpassed those in the implicit group. The findings have implications for materials developers and instructors.

In recent years, the importance of thinking skills in education has attracted the attention of researchers. To this end, this study investigated the effect of scaffolding and implicit instructions on the critical thinking skills (i.e., inference, evaluation, analysis, inductive and deductive reasoning) of EFL learners. To this end, 20 EFL learners who were taking an IELTS course at a language institute in two intact classes were chosen as the participants. One group was randomly assigned as the experimental group and their critical thinking skills were scaffolded following Vygotsky’s developmental model of the Zone of Proximal Development, and the other group was assigned as the control group and received implicit instruction for promoting critical thinking skills. California Critical Thinking Skills Test Form B developed by Facione and Facione (1993) was used to check the participants’ critical thinking skills. The results of the paired-samples t-test displayed that scaffolding and implicit instructions enhanced the EFL learners’ critical thinking. The analyses of the independent-samples t-test showed that the experimental group promoted their critical thinking to a greater extent in comparison with the control group. The findings of one-way MANCOVA indicated that by controlling for the pre-tests, scaffolding instruction was more effective than implicit instruction in developing the EFL learners’ critical thinking skills.