标题：A Comparative Study of the Impact of Interpretation-based, Task-based, and Mechanical Drills Teaching Methods on Iranian English Language Learners’ Grammatical Development
摘要：Since grammar has been an important part of language learning, this study was aimed to investigate the impact of three different methods (meaning-based method, task-based method and mechanical drill method) on grammatical development of Iranian EFL learners by teaching conditional sentences. This study was performed in Jahad Daneshgahi Language School of Kermanshah, Iran. The researcher administered a pre-test to see if the learners could make a homogeneous group in terms of proficiency or not. 51 learners were chosen to participate in the study. The learners were studying Top notch book (the third level). The participants were divided into three groups, each group containing 17 learners. The classes were co-educational, containing both male and female learners. Their ages ranged between 17 to 35 years old. This study was done in fall 2014. Analysis based on ANOVA and post hoc indicated that teaching conditional sentences with task-based instruction in comparison with two other methods, leads to a better grammatical development on Iranian EFL learners. The result of the study indicated that majority of the learners had a better performance on the test based on task-based method treatment.
其他摘要：Since grammar has been an important part of language learning, this study was aimed to investigate the impact of three different methods (meaning-based method, task-based method and mechanical drill method) on grammatical development of Iranian EFL learners by teaching conditional sentences. This study was performed in Jahad Daneshgahi Language School of Kermanshah, Iran. The researcher administered a pre-test to see if the learners could make a homogeneous group in terms of proficiency or not. 51 learners were chosen to participate in the study. The learners were studying Top notch book (the third level). The participants were divided into three groups, each group containing 17 learners. The classes were co-educational, containing both male and female learners. Their ages ranged between 17 to 35 years old. This study was done in fall 2014. Analysis based on ANOVA and post hoc indicated that teaching conditional sentences with task-based instruction in comparison with two other methods, leads to a better grammatical development on Iranian EFL learners. The result of the study indicated that majority of the learners had a better performance on the test based on task-based method treatment.
