چكيده
Grammar instruction has been a hotly-debated facet of language teaching/learning for decades.The student-centered nature of inductive teaching is often seen as advantageous as the student is more active in the learning process rather than being passive, especially in learning subskills like grammar. The guided discovery method is an inductive method that capitalizes on the fact of striving to learn more about different subjects by encouraging learners to explore the subject matter. In this regard, 122 students of Zabansara Oxford language institute of Mahabad were selected randomly to take the Oxford Placement tests in order to assure the comparability of the male and female learners' grammatical knowledge, and then 80 homogeneous students were chosen to take part in the study. Afterward, the students were assigned into two groups (25 male and 25 female) for the experimental group and (30 male and female) for the control group. Three instruments were developed and used to collect data from learners during that eight-sessions treatment program. All groups took part in a piloted version of pretest of grammar knowledge then the experimental group underwent 8 sessions of treatment ( using guided discovery method for learning grammar sepecifically verb tenses and conditional sentences), and the control group did not receive treatment and was taught by the traditional method of teaching for the mentioned grammar subjects. Afterwards, the participents in both groups received the piloted version of the researcher-made posttest to identify differences between experimental and control groups. The collected data in this study were analyzed through T-test. The results revealed that the experimental group significantly outperformed the control group on grammar post-test. Furthermore, there was not any significant differences between the male and female EFL learners’ performance on the grammar post-test. Ultimately it is worth mentioning that the findings of the study can be beneficial for EFL learners, instructors, and teachers.
