Effectiveness of Explicit Grammar Instruction on the Accuracy of Written Output among ESL Learners

Abstract

This study examined the impact of direct and structured grammar instruction on the writing accuracy of Grade 9 ESL learners. Many students continue to struggle with producing grammatically correct sentences, which often impacts the clarity of their written work. To address this concern, a quasi-experimental pretest-posttest design was used involving 33 learners who participated in a four-week grammar-focused intervention.

Findings revealed a clear improvement in students’ performance after the intervention. The mean score increased from 17.18 to 20.10, and statistical testing confirmed that the difference was significant (p < 0.05). These results suggest that when grammar rules are clearly explained and practiced, students become more conscious of their errors and more capable of correcting them.

Overall, the study highlights the value of explicit grammar instruction as a practical approach in improving writing accuracy among ESL learners.