grammatical appropriateness

This study investigates the effectiveness of inductive and deductive instruction methods on grammar accuracy and appropriateness among Iranian intermediate English as a Foreign Language (EFL) learners. sixty participants, selected from an initial population of 120 students at Zabanzara English Language Institute in Gilan based on their scores on the OPT English proficiency test, were divided into three groups: one receiving inductive grammar instruction, another receiving deductive instruction, and a control group adhering to traditional grammar teaching methods. Over ten weeks, participants underwent a pretest to establish baseline grammar awareness, followed by respective interventions for each group. Posttests assessed changes in grammatical performance, with statistical analyses—including paired samples t-tests and one-way ANOVA—employed to evaluate pre- and post-intervention results. The findings indicate significant improvements in grammatical skills for both experimental groups compared to the control group, suggesting that inductive and deductive teaching methods are more effective than traditional approaches. However, the results did not show statistically significant differences between the inductive and deductive groups. This research underscores the potential benefits of innovative pedagogical strategies in enhancing EFL learners' grammatical understanding. It is recommended that 1. EFL instructors teaching grammar classes should consider the integration of both inductive and deductive teaching methods in their English language instruction.