The Effect of Deductive and Inductive Instruction on Students’ Grammar Ability (A Comparative Study)

Teaching grammar needs an appropriate approach to make sure that grammar rules is easily understood by students. There are different approaches of teaching grammar. Deductive and inductive instructions are two common approaches for teaching English grammar. The objective of this study was to find out which instruction (inductive or deductive) gives better effect to improve students’ ability in grammar. The population of this study was first year students (115 students) of MTsS Lam Ujong, Aceh Besar in academic year 2018-2019, while the sample was 42 students in two different classes. Both classes were taught simple present tense using inductive and deductive approaches separately. Pre-test and post-test were administrated to gain the data. The collected data then compared and calculated using T-test in significance level 0,05. The result showed that inductive instruction gave better effect on students’ grammar ability compared to deductive instruction. However, statistical examination indicated that there was no significant difference between these two instructions (P-value = 0.619). This finding suggested that teacher could be free to use both deductive and inductive approaches to teach simple present tense.